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00_E6198 Switch Load Unit User`s Manual.book

Contents

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2. CHI OH Fl 231 Ul CH2 2 132 u2 3 CH3 O 133 CH4 J34 UA 1 I CHS CH6 O J102 is 05 06 CH7 J35 F6 U7 136 UB 8 e 137 7 PWRI Sr Lm gt PWR2 8888888889988 sw1 n RVI RV2 RV3 RVS RV amp RVZ RVB J12 KI P100 PWRI x P200 PwR2 P21 CHI J100 K3 P22 CH2 a Pe P23 CH3 P2 J15 KS P24 CH4 K6 P25 CH5 J17 T K7 P26 CH 5 i P27 CH7 P28 CH8 Selecting a Power Supply Configuration As shown in Figure 5 39 power supply connections for the loads are through P100 and P200 to PWR1 and PWR2 J41 respectively You must wire the power supply connectors to the individual channel connectors CH1 through CH8 J101 J103 J105 and J107 Use at least a 14 AWG Teflon insulated or 12 AWG vinyl insulated wire to carry 30 Amperes
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5. 6198 E6218A Switch Load Unit User Manual 7 11 7 Usingthe Custom Card THIS PAGE IS INTENTIONALLY LEFT BLANK 7 12 6198 E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual A Switch Load Unit And Card Specifications Agilent E6198B Switch Load Unit Specifications 2 Agilent E6175A 8 Channel High Current Load Card Specifications 3 Agilent E6176A 16 Channel High Current Load Card Specifications 4 Agilent E6177A 24 Channel Medium Current Load Card Specifications 5 Agilent U7177A 24 Channel Medium Current Load Card Specifications 6 Agilent E6178B 8 Channel Heavy Duty Load Card Specifications 7 Agilent U7178A 8 Channel Heavy Duty Load Card Specifications 8 Agilent U7179A 16 Channel High Current Load Card Specifications A 9 Agilent N9377A 16 Channel Dual Load Load Card Specifications 10 Agilent N9378A 24 Channel Low Resistance Load Card Specifications 11 Agilent N9379A 48 Channel High Density Load Card Specifications 12 Agilent E8792A and E8793A Specifications 13 Agilent E8782A and E8
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7. 1 are connected together oe J2 Configuration 2 are also connected together Connector nl Current Sense P2 Load Mounted ISense 1 2 Relay Timer Control dici um 1 Relay Slot Address ee Decode Logic S 1 S AL Data Load lt lt 1 Power 1 1 1 J6 1 5 12V 1 1 1 NPNPul up 1 1 Flyback Protection 1 1 1 1 1 1 Sense 1 ISense 2 1 1 1 1 4 PwrSw2 lt lt Load 4A 7 NO 1 I 1 Load MN Foy 1 J6 2 1 1 1 L Flyback Protection 1 1 1 eem ance d E _ 1 Multiple PB1 _ PS 1 KC Loadsz Solder In 4 1 Jumpers 1 1 ME i PS 2 Ko bo Pes 1 1 PB4 EE Psda KJ 1 E 1 J4 1 1 1 E Vcc 1 Sense 1 ISense 2 1 1 1 1 1 1 1 Load 1 lt 1 Load PNP Pulldown 1 i Example 3 J7 3 1 1 Flyback Protection 1 1 ISense 1 1 ISense 2 1 1 1 1 1 PwrSw4 J7 4 Bridge Load Flyback Protection Example 4 5 18 J1 e
8. t 6 14 E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Installing in the Switch Load Unit The Agilent E8792A E8793A 32 Pin Matrix Card can be installed in any available Switch Load Unit slot The Analog Bus connection cables require that all 32 Pin Matrix Cards be in adjacent slots so the cables will reach Figure 6 10 shows a typical installation Figure 6 10 Installed 32 Pin Matrix Cards Agilent Agilent Agilent E8793A 2 E8793A 1 E8792A Y J1 Abus Connection Cables J2 J2 J2 E6198B E6218A Switch Load Unit User Manual 6 15 6 Using the Pin Matrix Cards Using the 64 Pin Matrix Cards Conceptual Overview The Agilent E8782A Pin Matrix contains 40 x 4 Measurement Matrix for switching signals to and from the Analog Bus It also contains a 24 x 5 Instrument Matrix that connects external measuring instruments to the Analog Bus The E8783A Pin Matrix Modules contain only a 64 x 4 Measurement Matrix for switching signals to and from the Analog Bus Figure 6 11 isa simplified block diagram showing how the Agilent E8782A and E8783A are typically used together in a system As shown in Figure 6 11 if you need more UUT connections simply add more Agilent E8783A Pin Matrix Cards to the bus Figure 6 11 Pin Matrix Cards Conceptual Overview 4
9. State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Power Select 33 48 W Base 14 This register controls the Pull Up Down Power Select armature relays for channels 33 48 Each bit controls power shared by two channels These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to 6198 6218 Switch Load Unit User Manual Bit 7 6 5 4 3 2 1 0 Purpose K808 K807 K806 K805 K804 K803 K802 K801 Pwr15 16 Pwr13 14 Pwr11 12 Pwr9 10 Pwr7 8 Pwr5 6 Pwr3 4 Pwr1 2 Setting state state state state state state state state Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Power Select 17 32 W Base 13 This register controls the Pull Up Down Power Select armature relays for channels 17 32 Each bit controls power shared by two channels These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K816 K815 K814 K813 K812 K811 K810 K809 Pwr31 32 Pwr29 30 Pwr27 28 Pwr25 26 Pwr23 24 Pwr21 22 Pwr19 20 Pwr17 18 Setting state sta
10. Base 7 Bits 7 6 5 4 3 2 1 0 Write 11546 Insty5 Insty4 Inst43 Insty2 Inst44 Inst4o Insto Instrument Relay 17 24 W Base 8 Bits 7 6 5 4 3 2 1 0 Write Insto4 11563 11562 11561 11560 Inst4o Inst4a Inst47 Aux Relays Not available for Instrument matrix card without auxiliary Auxilary Relay 1 8 W Base 9 Bits 7 6 5 4 3 2 1 0 Write Auxg Aux7 AUXg Auxs Aux Aux3 Aux Auxilary Relay 9 16 W Base A 1049 Bits 7 6 5 4 3 2 1 0 Write AuX46 AuX45 AUX44 AuX43 AuX42 AUX41 AuX40 AuXg Auxilary Relay 17 24 W Base Bh 1149 Bits 7 6 5 4 3 2 1 0 Write AUX2 AUX24 20 AUX49 AUX4g AUX47 E6198B E6218A Switch Load Unit User Manual B 73 B Register Definitions Auxilary Relay 25 32 W Base Ch 1249 Bits 7 6 5 4 3 2 1 0 Write AuX32 Aux34 AUX29 AuXog AuX 7 AuXog 25 Auxilary Relay 33 40 W Base Dj 1349 Bits 7 6 5 4 3 2 1 0 we tos Rs n ABUS1 to Instrument Bus Instrument Relay 1 8 W Base En 1449 Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Insta Inst Insto Inst4 Instrument Relay 9 16 W Base 1549 Bits 7 6 5 4 3 2 1 0 Write 1156 1155 Inst44 1153 11542 Inst44 Inst4o Insto Instrument Relay 17 24 W Base 10h 1610 Bits 7 6 5
11. Isense mw Resistor PWR Enig m C43 K21 q 1234 RT5 R4 E lid S U 4 RT7 RT8 J4 NC The LEM bypass capacitor location pattern for channels 2 amp 3 is repeated for channel pairs 5 6 and 7 8 5 12 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 7 Wiring Options of LEM Model LA25 NP Primary for Various Current Ranges Primary Primary Current A Recommended Turns Nominal Max Turns Connections Ratio 5 1 E EFEHEI 1 25 36 1 1000 LEM CNFG D E EFEHEI 6 10 5 1 HEHE 2 12 18 2 1000 LEM CNFG Ge 6 10 5 1 Gel 3 8 12 3 1000 LEM CNFG 6 10 5 1 4 6 9 4 1000 LEM CNFG n 6 10 5 1 5 5 7 5 1000 ANNA LEM CNFG 6 10 Table 5 2 details the components that need to be installed replaced for each of the two channel pairs of the Agilent E6175A 8 Channel Load Card Table 5 2 Components involved in LEM Module Installation Channel s Isense Measuring Shorting Bypass LEM LEM Tap Resistor Resistor Jumper Capacitors Module Connection Rmvd 0 01 uf 1 2 R1 R2 TP41 to C41 and C42 U1 See LEM module TP42 Spec Sheet 3 4 R3 R4 TP43 to C43 and C44 U2 See LEM module TP44 Spec Sheet 5 6 R5 R6 TP45 to C45 and C46 U3 See LEM module TP46 Spec Sheet 7 8 R7 R8 TP47 to C47 and C48 U4 See LEM module TP48 Spec Sheet The board was tested with a LEM
12. Bit 7 6 5 4 3 2 1 0 Purpose K408 K407 K406 K405 K404 K403 K402 K401 Chan21 2 Chan20 1 19 2 19 1 Chan18 2 Chan18 1 Chan17 2 Chan17 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 21 24 W Base B This register controls the power selection relays for channels 21 through 24 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K416 K415 K414 K413 K412 K411 K410 K409 Chan24 2 Chan24 1 Chan23 2 Chan23 1 Chan22 2 Chan22 1 21 2 Chan21 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual B 57 B Register Definitions Load Select 25 28 W C This register controls the power selection relays for channels 25 through 28 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K508 K507 K506 K505 K504 K503 K502 K501 Chan28 2 Chan28 1 Chan27 2 Chan27 1 Chan26 2 Chan26 1 Chan25 2 Chan25 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 Load Select 29 32 W Base D This register controls the power selection relays for channels 29 throu
13. lt L R LEM SY CY AAA SE Load Power Supply RVx lt lt Typical MOV 3mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000mS 0 90 Joules watt seconds Transient peak current 8 20mS 100 Amperes Varistor voltage 1 0mA DC 300 Vdc Max Maximum Clamping Voltage 8 20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current 5A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C 10 1000 mS refers to a standard pulse of 10 mS rise and 1000 mS to 50 decay of peak value 1 8 20 mS refers to a standard pulse of 8 mS rise and 20 mS to 50 decay of peak value 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Load and UUT connections Figure 5 46 shows how the Agilent U7178A Load Card is wired Connect loads between J11 J18 and J31 J38 Loads are external to the load card and connected to the load card via cables Connectors J11 and J31 connect to Channel 1 connectors J12 and J32 connect to Channel 2 etc When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the app
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15. Row a b 2 32 Aux UUT Common System Ground UUT Common AUX 33 31 Aux2 UUT Common System Ground UUT Common AUX 34 30 Aux3 UUT Common System Ground UUT Common AUX 35 29 Aux4 UUT Common System Ground UUT Common AUX 36 28 Aux5 UUT Common System Ground UUT Common AUX 37 lolol 27 Aux6 UUT Common System Ground UUT Common AUX 38 26 Aux UUT Common System Ground UUT Common AUX 39 gt 0 25 Aux8 UUT Common System Ground UUT Common AUX 40 24 Aux9 UUT Common System Ground UUT Common AUX 41 23 Aux10 UUT Common System Ground UUT Common AUX 42 22 Aux11 UUT Common System Ground UUT Common AUX 43 21 Aux12 UUT Common System Ground UUT Common AUX 44 20 Aux13 UUT Common System Ground UUT Common AUX 45 19 Aux14 UUT Common System Ground UUT Common AUX 46 18 Aux15 UUT Common System Ground UUT Common AUX 47 17 Aux16 UUT Common System Ground UUT Common AUX 48 16 Aux17 UUT Common System Ground UUT Common AUX 49 15 Aux18 UUT Common System Ground UUT Common AUX 50 14 Aux19 UUT Common System Ground UUT Common AUX 51 13 Aux20 UUT Common System Ground UUT Common AUX 52 12 Aux21 UUT Common System Ground UUT Common AUX 53 11 Aux22 UUT Common System Ground UUT Common AUX 54 10 Aux23 UUT Common System Ground UUT Common AUX 55 9 Aux24
16. Write Only State 1 Loadx 2 connected to Loadx State 0 Loadx 1 connected to Loadx Power On Reset State 0 all Loadx 1 connected to Loadx E6198B E6218A Switch Load Unit User Manual B 39 B Register Definitions Load Select 9 16 W Base 9 This register controls the load selection relays for channels 9 16 See Figure B 1 For x 9 16 Bit 7 6 5 4 3 2 1 0 Purpose K623 K620 K617 K614 K611 K608 K605 K602 Chan16 15 14 Chani3 Chan12 Chan11 Chan10 Chan9 Setting State State State State State State State State Write Only State 1 Loadx 2 connected to Loadx State 0 Loadx 1 connected to Loadx Power On Reset State 0 all Loadx 1 connected to Loadx Agilent N9378A 24 Channel Low Resistance Load Card The Agilent N9378A low resistance load card lets you attach as many as four loads per channel Loads are mounted onboard on a series of mezzanine cards that plug into the load card The N9378A card also provides an output relay in a general purpose configuration See Using the Agilent N9378A 24 Channel Low Resistance Load Card for a block diagram and more information Unless otherwise noted writing a 1 closes energizes a relay and writing a 0 opens de energizes the relay The reset and power on state for all relays is open Card Type R Base 0 This register reads back the card type of the card The N
17. 00000000000000000000000000000000 00000000000000000000000000000000 000000000000000000000059000000000 0000000000000008600000 o o Q 000900000000000005000000000000000 OCS o o o lololol o o o 0000000 J6 J55 555 J56 6 o f the E8794A custom card o o ole lole ole o o o 3 55 o o 00000000000000000000000000000000 00000000000000000000005000000000 QODODODOOOOOOOOOOOOOOOOOOOOOOOOO 0000000000000000000000 o 1C VIEW O 0 5 0 5 0 0 OL
18. Abus1 Abus2 Abus3 Abus4 UUT Common Inst1 K1101 K1201 K1301 K1401 K1001 Inst2 K1102 K1202 K1302 K1402 K1002 Inst3 K1103 K1203 K1303 K1403 K1003 Inst4 K1104 K1204 K1304 K1404 K1004 Inst5 K1105 K1205 K1305 K1405 K1005 Inst6 K1106 K1206 K1306 K1406 K1006 Inst7 K1107 K1207 K1307 K1407 K1007 Inst8 K1108 K1208 K1308 K1408 K1008 Inst9 K1109 K1209 K1309 K1409 K1009 Inst10 K1110 K1210 K1310 K1410 K1010 Inst11 K1111 K1211 K1311 K1411 K1011 Inst12 K1112 K1212 K1312 K1412 K1012 Inst13 K1113 K1213 K1313 K1413 K1013 Inst14 K1114 K1214 K1314 K1414 K1014 Inst15 K1115 K1215 K1315 K1415 K1015 Inst16 K1116 K1216 K1316 K1416 K1016 Table C 3 Bypass and Disconnect Relays Abus1 Abus2 Abus3 Abus4 Bypass Relays K2 K4 K6 K8 Disconnect Relays K1 K3 K5 K7 Table C 4 Miscellaneous Relays Inst2 to System Ground Relay K502 DAC1 to Inst1 K503 DAC2 to Inst1 K504 E6198B E6218A Switch Load Unit User Manual C C C 8 Repair Information 64 Pin Matrix Modules Figure 6 11 shows the relay groupings for the Agilent E8782A The Agilent E87834 is identical but does not have the instrumentation relays Individual relays can be replaced on the Agilent E8782A and E8783A 32 pin matrix modules All relays are 5V 1A reed relays The Agilent part number for an 8 pack of relays is 0490 2063 The tables on the following pages list the component number for each possible relay The tables for the Meas
19. A 21 56 8 i E E q eue dxoeq 8 er 2 Uld 96 i og E i od a i i 9 od 8 i As i esr s ul 10 99 9q 1u8 3 Jo pue 91nojJ pf pue er 7 3 6198 6218 Switch Load Unit User Manual 7 Usingthe Custom Card Connector Breakouts The figures and tables on the following pages show the breakouts for connectors J2 through J6 See Figure 7 8 for details on the J50 Digital I O breakouts WARNING STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to electrical components observe anti static techniques whenever removing a card from the Switch Load Unit or whenever working on a card J2 Connector Breakouts Figure 7 2 shows the J2 connector breakouts when cable part number E6170 61604 is used to connect J2 to the Test System Interface Figure 7 2 J2 Configuration Lines Pinouts CCard Com No Connect 2 1 J2 To Test System Interface seul ze SN CCard Pin 32 No Connection CCard Com Note Pinout shown is valid when using cable p n E6170 61604 7 4 E6198B E6218A Switch Load Unit User Manual 43 44 Connector Breakouts DAC Figure 7 3 J3 J4 Breakouts for Agilent E1418 DAC Figure 7 3 shows the J3 J4 connector breakouts when cable Using the Custom Card part number 6170 61615 is used to connect J
20. Setting state state state state state state state state Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 6198 E6218A Switch Load Unit User Manual B 21 B Register Definitions Power Select 9 16 W Base 7 This register controls the Pull Up Down Power Select armature relays for channels 9 16 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit Purpose Setting 7 K31 CH 16 state 6 K29 CH 15 state K27 CH 14 state K25 CH 13 state K23 CH 12 state K21 CH 11 state K19 CH 10 state K17 CH 9 state Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 Power Select 17 24 W Base 8 This register controls the Pull Up Down Power Select armature relays for channels 17 24 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7
21. Aux30 i Aux30 Row30 Aux31 i Aux31 el gh ub i Row31 Aux32 i Aux32 Row32 __ Common 32 x 4 Measurement Matrix 6198 6218 Switch Load Unit User Manual Matrix Relay Detail Column m Row 6 5 6 Using the Pin Matrix Cards Figure 6 3 Agilent E8793A Detailed Block Diagram Abus Connector 96 Pin DIN C Rear Aux Access 6 6 J3 ZEND 96 Pin DIN C Decoding and Driver Backplane Access Circuits To Switch Load Unit 24 Aux1 Abus2 Abus4 Abus1 Abus3 Disconnect Relays i 5 5 lt Bypass Relays 1 Aux1 Aux2 Row1 Aux2 Aux3 Row2 Aux3 Aux4 Row3 Aux4 Aux30 I Row4 96 Pin DIN C Row Aux amp UUT Common To UUT P2 eee Aux30 Aux31 Row30 Aux31 Aux32 Row31 Aux32 Row32 UUT Common 32 x 4 Measurement Matrix Matrix Relay Detail Column 6198 E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Relay Timer The Relay Timer indicates whether or not the last change to a relay s state opening or closing the
22. Load 7 Row 3 Power J ic Row 2 Channel 8 1 Load 8 Power 7 Load 7 p eM Row 1 Ei Power8 J A Load oad 8 c Power 8 E A C E J Odd Rows N P2 Connector Wiring Terminal View lt c Channel 9 id Load 9 Power 9 Load 10 10 Power 10 Channel 9 gt Load 9 Power9 2 Row 16 Row 15 2 Channel 10 4 3 3 Channel 11 5 c 5 c Channel 12 5 14 Channel 10 gt Load 10 Power 10 J Channel 11 gt Load 11 Power 11 Row 13 Load 11 11 Power 11 Row 12 Row 11 Channel 12 Load 12 Power 12 J Row 10 Power 12 Row 9 m Channel 13 Row 8 gt Load 13 lt as Channel 13 im Row 7 Power 13 Power 13 NS Channel 14 gt Load 14 Power 14 J Row 6 Row 5 Power 14 Row 4 Channel 15 gt Load 15 2 Channel 14 3 5 c Channel 15 i c c Channel 16 5 78 3 Power 15 2 Channel 16 Load 16 Power 16 J Row 2 Power 15 00000000 00000000 Row 1 Power 16 ij E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Current Sharing Notice in the wiring schematic Figure 5 52 that pins A C and E in each row of J1 J2 are connected together on the PC board When connecting high current gt 5 amp loads wire across all three pins in each row of CN1 CN2 see Figure 5 24 This ensures current sharing across all
23. returns 1 ready Bit 7 1 0 Status Value 1111111 BUSY Current Sense Select W Base 3h Only one current sense channel lgenset and lgenge pair can be selected at any one time At reset no channel is selected Select Bit 7 5 Bit 4 0 Relays No Channel N A 00000 None Channel 1 N A 00001 K1 K2 Channel 2 N A 00010 K3 K4 Channel 3 N A 00011 K5 K6 Channel 4 N A 00100 K7 K8 Channel 5 N A 00101 K9 K10 Channel 6 N A 00110 K11 K12 Channel 7 N A 00111 K13 K14 Channel 8 N A 01000 K15 K16 Channel 9 N A 01001 K17 18 Channel 10 N A 01010 K19 K20 Channel 11 N A 01011 K21 K22 Channel 12 N A 01100 K23 K24 E6198B E6218A Switch Load Unit User Manual Register Definitions Select Bit 7 5 Bit 4 0 Relays Channel 13 N A 01101 K25 K26 Channel 14 N A 01110 K27 K28 Channel 15 N A 01111 K29 K30 Channel 16 N A 10000 K31 K32 No Channel N A 10001 11111 None Load Select 1 8 W Base 4h The register uses positive logic 1 Relay Close 0 Relay Open At reset no channel is selected Bit 7 6 5 4 3 2 1 0 Purpose 48 K46 K44 K42 K40 K38 K36 K34 CH8 CH7 CH6 CH5 CH4 CH2 1 Setting State State State State State State State State Load Select 9 16 W Base 4h The register uses positive logic 1 Relay Close 0 Relay Open At reset
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25. E pe zi me ps xn lel Mating Connector J2 for J2 Load Wiring Figure 5 51 is a simplified schematic and connector pinouts showing how loads are connected to CN1 CN2 Loads 1 through 8 connect to CN1 and loads 9 through 16 connect to CN2 CAUTION To prevent premature pin failure from excessive current flow when connecting high current gt 5 amp loads to wire across all three pins in each row see Figure 5 52 6198 E6218A Switch Load Unit User Manual 5 77 5 Using Load Cards and Loads Figure 5 51 Agilent U7179A Load Wiring Schematic and CN1 CN2 Pinouts J1 Even Rows J1 Odd Rows P1 Connector Wiring Terminal View A No Channel 1 lt oo Channel 2 5 c Channel 3 5 c No Channel 4 1 lt as Channel 5 i3 c Channel 6 4 Channel 7 A No Channel 8 J2 Even Rows A Load 1 T sprain E Row 16 Channel 1 gt Load 1 15 1 J Power 2 Load 2 2 Row 14 mu Channel 2 gt Load 2 Row 13 Power2 J Power 3 Row 12 Channel Row 11 Power3 J A Row 10 Channel 4 TM Power 4 ga Load 4 Row 9 Power4 J Row 8 Channel 5 gt Load 5 z Row 7 ra Power5 J Power 5 Load 5 5 Row 6 mm Channel 6 gt Load 6 Row 5 Power6 J Power 6 Row 4 Channel 7 Load 6
26. J CN2 Mating J2 Connector for J2 Load Wiring Figure 5 23 is a simplified schematic and connector pinouts showing how loads are connected to CN1 CN2 Loads 1 through 8 connect to CN1 and loads 9 through 16 connect to CN2 CAUTION To prevent premature pin failure from excessive current flow when connecting high current gt 3 amp loads to wire across all three pins in each row see Figure 5 24 on page 34 5 32 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 23 Agilent E6176A Load Wiring Schematic and CN1 CN2 Pinouts CN1 Connector Wiring Terminal View Even Rows Odd Rows CN1 J1 al Channel 1 cf Power 1 16 Channel 1 i 1 Row 15 Power 1 M eh ja UD H Row14 Ch gt annel 13 ci Power 2 A anne Load 2 K Sur Load d Row 13 Power 2 Ch 13 42 EK Row 12 Channel 3 anne gt AUOC 110 4 Power3 o Load3 1 M 11 T Row 11 c3 Power 3 Channel4 Temm Power 4 Row 10 Channel 4 0 oa 310 E Loaa4 Row 9 i Power 4 8A TAY Channel 5 b Asc 7212 4 4 Power5 Row8 E Channel 5 i 8E i Row 7 Ca Power 5 2 A lt Channel6 i 6 scK Power 6 Row 6 E Channel 6 SEV d Row 5 6 Channel7 5 sete T power Row4 E Channel 7 j 14E L3ey Row 3 mo Pow
27. ABUS3 to Row Row Relay 1 8 W Base 1E 3049 Bits 7 6 5 4 3 2 1 0 Write Rowg Row Rows Row Rows Row Row Relay 9 16 W Base 1Fh 3110 Bits 7 6 5 4 3 2 1 0 Write ROW46 Row45 Row44 Row 43 Row 9 Row 1 Row 49 Row Relay 17 24 W Base 20 3249 Bits 7 6 5 4 3 2 1 0 Write Row 4 Row 23 22 Row Row Relay 25 32 W Base 21n 3349 Bits 7 6 5 4 3 2 1 0 Write ROW32 Row39 Rows Rowss B 86 E6198B E6218A Switch Load Unit User Manual Register Definitions Row Relay 33 40 W Base 22h 3449 Bits 7 6 5 4 3 2 1 0 Write Row39 Row36 Row35 Row34 Row33 Row Relay 41 48 W Base 23h 3549 Bits 7 6 5 4 3 2 1 0 Write Rowa47 5 Row44 Row43 Row42 Row44 Row Relay 49 56 W Base 24 3610 7 6 5 4 3 2 1 0 Write 55 Rows4 Rows3 Rows2 Rows Row Relay 57 64 W Base 25 3749 Bits 7 6 5 4 3 2 1 0 De fos ns Rs ABUSA to Row Row Relay 1 8 W Base 26 3810 7 6
28. o 2 Insert c nnector into Agilent 1252 3877 housing 5 62 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent U7178A 8 Channel Heavy Duty Load Card The Agilent U7178A 8 channel heavy duty load card with current sensing is intended to be used with high power loads mounted outside the switch load unit Figure 5 43 shows a block diagram of the Agilent U7178A Figure 5 44 shows the layout of the U7178A card The card occupies two slots in the switch load unit Card Location Recommendations The card type is 19h Load Card Type and Configuration ID The factory default is to load a 100 x Isense resistor in each channel Selecting a Current Sense Resistor Value Power supply connections are made directly from the external power supplies to the load card not through the Agilent E6198B Switch Load Unit Power Supply Buses Each channel is capable of up to 40 A continuous carry into a resistive load Selecting a Power Supply Configuration Loads are mounted externally and interface to the card using two load connectors J1 and J2 Connecting Loads CAUTION It is possible to close more than one channel at a time The power supply connections to the load card and individual channels are rated for 40 A maximum continuous Do not exceed these specifications 6198 6218 Switch Load Unit User Manual 5 63 5 Using Load Cards a
29. CR206 CR205 92028 Bc206 BS C20 U208 RP202 RP203 0203 0204 6198 E6218A Switch Load Unit User Manual C201 Nooo Oooo Using the Custom Card 7 gt 7 9 7 Usingthe Custom Card Figure 7 8 E8794A Schematic 7 10 E6198B E6218A Switch Load Unit User Manual Using the Custom Card 7 Figure 7 9 Status and Control Interface pcb only
30. Feus 7099 8189 2187 4097 zspo 2097 9197 4 H L 197 1097 jzteipeoi 2097 2 87 7 87 9097 jvspeo1 H rapo L 2097 YLSA 4 rapo __ L OLS 9097 4 4 2097 9187 9 87 9097 09M 6197 boo00000000000000009 609 909 60000000000000000000 LOSA Sen ELPA 60 804 LOVA ELEY b ooooooooooooo000009 60 VLVM OLVM 90v repor COV 4 reoi Jroa OLE 6089 2187 SLVM rase 4077 ze 0 J zzp LLEN 1187 0 87 9LVM Jezior enpo L CVM 807 espo VOVM 9LEA 4 ezpeor 808 2087 4 142 O vuseos 1140 OLUD 649 vie 240 gt 49 4 roon J vspeo1 L 640 rroi J yepe L 849 240 ez T eie 140 Losn 8027 Temal Sema voez 52 Hiper 2127 802 cel Sein L POCA 4027 Seema 2027 52 2007 zwei LECCA S08 2084 E 90 Jroen L J repor L COEN vlc Jro l Trema LOLA 9029 J ri
31. 0 5 5 ololo olo 5 00 5 5 5 ololo olo oloolol loloo ooo 0 0 0 0 00 6 9 0 9 0 lolo 00 ololololoo 0 5 5 5 019 olololo o lolo 00 0 5 6 5 5 olo 0 0 0 0 0 0 5 0 0 5 0 0 5 5 ololo
32. TOcf Ocf voc 5060 90cf LOTE S80cf 60cf If 96 corr TOIL 00000000000000000001 us LOIT 901f ur SOILS eje e jooj corr ur ur torr 6198 E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Cards 3 Figure 3 7 shows the locations of the various backplane connectors and LEDs These components are described on the following pages See Table 3 3 for more detail Figure 3 8 Switch Load Unit Breakout Board Connectors Standalone only S2A S2H s3A sar m BERE siA sip aima BREAKOUT BOARD External Board Figure 3 8 shows connector locations on the breakout board external board Refer Table 3 5 for the detailed descriptions The breakout panel is available with the E6198B Standalone option and is easily accessible from the SLU rear E6198B E6218A Switch Load Unit User Manual 3 11 J Switch Load Unit and Plug In Cards Backplane Connector Name Table 3 3 lists the connectors on a E6198B backplane
33. ri EDCBA 9Load 1 9Load 2 9Pwr 9Pwr J 10Load 1 10Load 2 10Pwr 10Pwr J 11Load 1 11Load 2 11Pwr 11Pwr Jj 12Load 1 12Load 2 7 Chan9 gt Chan11 5 gt 10 12Pwr gt Chan12 12Pwr 13Load 1 13Load 2 13Pwr gt Chan13 13Pwr 14Load 1 14Load 2 14Pwr gt 14 14Pwr J 15Load 1 15Load 2 15Pwr gt 15 15Pwr 16Load 15 16Load 2 16Pwr gt Chan16 16Pwr 5 Figure 5 63 Agilent N9377A Pinout Table 160 pin option 5 94 Using Load Cards and Loads J1 32 iioii Toii Theat Toad 31 30 Pwr fr 29 Rr Pwr 28 2tcod 27 22082 2 toad Acad 28 omes mw Pwr 25 24 stead 3toedi stead 3toedi 231 32002 3Load2 3toed2 atoad2 22 aur Sr Sr owr 21 3Pwr 3Pwr 3Pwr 20 4 load 4cod2 ALoad2 4iond2 18 aew arl aew awr awr ar 16 Stead Stoodi 15 Sioad2 Stoad2 42 Ser Sur Sw Sr 13 ser Sur sme Shwe swr 12 toast GLoadi Good 11 85592 60592 eLoad2 _6 0282 Gur Ger Ger Sw of cw owr Gur owr
34. sense e card 1 e card 1 select select select 1 8 Sense select select select select config config Base 4 Load Load be Load Load Load Load Load oe piede h select 1 8 select 1 8 select 1 8 select select 1 8 select select 9 16 config config Load Load edd Load Load Mezzanin Mezzanin Base 5p cien d select select 9 16 N A select N A Select card 3 e card 3 9 16 17 24 9 16 config config Power Power Power Power Load Load Base 6 N A select N A N A select 1 8 select 1 8 17 24 select 1 8 select select select Power Power Power Power Power Loud bead Baset7 N A select select select 1 81 N A select N A select 9 16 9 16 9 16 Power Laad Power Load Load 8 N A N A select select 1 8 N A N A N A select select select 17 24 Power Power Load Load Baset 9 N A N A N A select N A N A N A 9 16 select select select B 10 E6198B E6218A Switch Load Unit User Manual Table B 6 Summary of Load Card Register Definitions continued Register Definitions Agilent E6175A 8 Channel High Current Load Card N A indicates the card does not have a register at that offset address Register E6175A E6176A E6177A U7177A U7178A U7179A E6178B N9377A N9378A N9379A Offset 8 Ch 16 Ch 24 Ch 24 Ch 8 Ch 16 Ch 8 Ch 16 Ch 24 Ch 48 Ch Power Load Load N A N A N
35. AuXog AuXos Abus1 to Row Bits 7 6 5 4 3 2 1 0 Write Rowg Row Rows Row Rows Rows Row Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row43 Row42 B 66 E6198B E6218A Switch Load Unit User Manual Row Relay 17 24 W Base 1240 Register Definitions Bits Write Row 4 Row23 22 Row Row 8 Row47 Row Relay 25 32 W Base D 1349 Abus2 to Row Row Relay 1 8 W Base E 14 0 Row Relay 9 16 W Base 1549 Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row44 Row yg Row Relay 17 24 W Base 10 1649 Bits 7 6 5 4 3 2 1 0 Write Rows Rows Row4g Row47 Row Relay 25 32 W Base 11 1749 Bits 7 6 5 4 3 2 1 0 Write Rowa4 Rowe Rowos 6198 E6218A Switch Load Unit User Manual B 67 B Register Definitions Abus3 to Row Row Relay 1 8 W Base 12 1849 Bits 7 6 5 4 3 2 1 0 Write Rowg Row Rows Row Rows Row Row Row Relay 9 16 W Base 13 1949
36. Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row43 Row42 Row Relay 17 24 W Base 14 2049 Bits 7 6 5 4 3 2 1 0 Write Rows Rows 20 Row4g Row4g Row47 Row Relay 25 32 W Base 15 2149 Abus4 to Row Row Relay 1 8 W Base 16 2249 Bits 7 6 5 4 3 2 1 0 Write Row Rows Row Rows Row Row Row Relay 9 16 W Base 17 2349 Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row43 Row42 Row44 B 68 E6198B E6218A Switch Load Unit User Manual Register Definitions Row Relay 17 24 W Base 18 2449 Bits 7 6 5 4 3 2 1 0 me fev Rove Rove Rs ona n Row Relay 25 32 W Base 19 2549 Bits 7 6 5 4 3 2 1 0 Write Rowa4 Rowss UUT Common to Instrument Bus The following values are valid for the Agilent E8792A only Instrument Relay 1 8 W Base 1A 2649 Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Inst Inst4 Inst Inst Instrument Relay 9 16 W Base 1B 2749 Bits 7
37. Table 3 3 Backplane Connectors for E6198B 6198 Reference Designator J2 SLU Current Sense Bussed Split J3 SLU Power Bus Sense Select Local Remote J1 Frame Select T1 T14 SLU Logic Power Supply Connector J101 To USB Controller Connector J102 Utility Connector J104 External Reset reserved J105 5 V Indicator 5 V Status J106 12 V Indicator 12 V Status J107 12 V Indicator 12 V Status J108 READY Indicator Control Status J109 12 V Output For Fan J110 12 V Output For Fan J111 12 V Output For Fan J201 J221 Load Card Slots Connector J801 amp J802 Power Busses PB1 PB4 J803 Sense For PB1 PB4 3 12 E6198B E6218A Switch Load Unit User Manual Backplane J1 J2 and J3 Connectors Switch Load Unit and Plug In Cards Table 3 4 shows the factory default configuration for the backplane connectors Table 3 4 Backplane Factory Default Connector Settings 3 Default z es Connector Setting Description Frame Select address 0 7 When using multiple Switch Load Units in your test system Connector J1 0 Zero J1 provides a unique address for each Switch Load Unit Factory default one Switch Load Unit is 0 J2 Bussed Switch Load Unit Current Sense Bus Switch Load Unit Power Bus Sense select J3 Local Local Remote 6198 E6218A Switch Load Unit User Manual 3 3 14 Switch Load Unit and P
38. 4 Configuring the Switch Load Unit Load Box Installation Figure 4 15 Load Box Installed Install 4 tinnermans 0590 0804 at the proper locations on the back of the rack From the back of the rack position the load box onto the rails and secure to the rack using 4 spacers 0380 0317 and 4 dress screws 0570 1272 Spacers are only required for the first loadbox to clear the door latch Check the build list for the number of load boxes E6198B required If a second load box Option E6198B FG is required another set of rails will need to be installed Allow space for the first load box and 1 EIA space for venting between the two load boxes Secure the second loadbox if required with 4 dress screws 9900 06001 This is the standard spacer For E8972 75 5400 use 0380 4697 spacers 4 14 E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual 5 Using Load Cards and Loads Load Card Capabilities 5 2 Loads Overview 5 4 Using the Load Cards 5 5 Using the Agilent E6175A 8 Channel Load Card 5 7 Using the Agilent E6176A 16 Channel Load Card 5 25 Using the Agilent E6177A 24 Channel Load Card 5 38 Using the Agilent U7177A 24 Channel Load Card 5 47 Using the Agilent E6178B 8 Channel Load Card 5 55 Using the Agilent U7178A 8 Channel Heavy Duty Load Card 5 63 Using the Agilent U7179A 16 Channel High Current Load Card 5 71 Using the Agilent N9377
39. E6218A Switch Load Unit User Manual A 17 A Switch Load Unit And Card Specifications THIS PAGE IS INTENTIONALLY LEFT BLANK A 18 6198 E6218A Switch Load Unit User Manual CAUTION Agilent TS 5000 E6198B Switch Load Unit User Manual B Register Definitions Address Space 2 Switch Load Unit Register Definitions 4 Load Card Register Definitions 10 Pin Matrix Card Register Definition 63 This appendix provides register based programming information for the Agilent E6198B Switch Load Unit backplane the individual load cards the pin cards and the custom card This information can help you with troubleshooting components of the load cards or Switch Load Unit Agilent strongly recommends that you address the registers and relays through drivers that track the state of all the Switch Load Unit relays from the moment of start up Failure of the software to maintain state awareness could result in shorting the power bus across one or more relays thereby damaging or destroying them RE Agilent Technologies B Register Definitions Address Space B 2 The Switch Load Unit address space is divided as follows FFFSSSSSRRRRRRRR where F Frame select 0 7 S Slot number 0 21 E6918A R Register offset 0 255 Use slot number 0 for Switch Load Unit backplane access For Switch Load Unit Pin Matrix Load or Custom cards slot numbers are depending on the slot availability 1 21 for E6198B For ea
40. Rs Chan 2 lt 0 o lt Load 2 7 ANN i 1 1 Load2 LdSense 2 LdSense 2 Flyback Protection oS l i GPIB J1 even rows J1 odd rows 1 5 1 SM amp H LU 1 1 PB2 T S PS 2 e S PB3 1 PB4 oy H PS 3 J12 5 J8 J11 NC ISense Sense 1 1 fon Ma oss Chan 16 lt Load 16 lt vo NE add NC16 i Load16 16 mE 1 1 Flyback Protection J2 even rows 5 72 J2 odd rows E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 48 Agilent U7179A 16 Channel Load Card Layout 108 F12B FIJA 138 FT4A F148 FIBA F188 K33
41. Using Load Cards and Loads Selecting a Power Supply Configuration Each channel connects to the power bus via a Form SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J4 J7 and each NC terminal is connected to a pin on J8 J11 Each pin on J4 J11 can be connected to any of the four power bus lines on J12 via jumper wires See Figure 5 55 The terminal block jumper lets you conveniently connect pull up or pull down voltages to the various inputs You can also terminate a UUT load at a different voltage than ground For example you can connect the channel to 12 volts on one side and 5 volts on the other The factory default is to provide two jumper combs one that ties all the pins on J4 J7 NO together and one that ties all the pins on J8 J11 NC together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J4 Jll can be easily cut to provide bus or pin isolation between the various input power bus connections Selecting a Current Sense Resistor Value CAUTION The card comes factory loaded with a three watt 0 050 0 1 sense resistor already installed If lower value currents are being measured requiring a larger resistance value to make the sense voltage readable then replace the sense resistor with a four wire resistor of higher value The N9377A provides a footpr
42. You can also make connections directly to CN2 Figure 5 54 is a simplified load card schematic and CN2 connector pinout showing the details Each row of CN2 represents a single load card channel The three pins in each row are connected together on the PC board for current sharing When making UUT connections wire across all three pins in each row This ensures current sharing across all pins and prevents premature pin failure from excessive current flow 6198 E6218A Switch Load Unit User Manual 5 81 5 Using Load Cards and Loads Figure 5 54 Agilent U7179A CN2 Connector Pinouts P2 Connector Load 1 E Front View E1 Channel 1 Load 4 E Load5 Load a E4 Channel 4 Load 7 E5 Channel 5 Load8 OY E6 Channel 6 E7 Channel 7 E8 Channel 8 E9 Channel 9 Loado 246 Load 10 E11 Channel 11 Load 11 E12 Channel 12 Load 12 E13 Channel 13 E14 Channel 14 Hess E15 Channel 15 Load 14 E16 Channel 16 Load 15 Load 16 Chan 16 E16 E C A 5 82 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent N9377A 16 Channel Dual Load Load Card The Agilent N9377A 16 channel dual load load card with current sensing is intended to be used with high power loads mounted outside the Switch Load Unit The dual load feature permits testing for some common test scenarios An engine control unit smart driver may need to check for shorts to ground and
43. e Bit 0 in the Control register described in Appendix B is asserted When the card is reset all relay registers are cleared column disconnect relay control is set to automatic mode and the relay timer is started User Connectors and Pinouts The figures and tables on the following pages show the pinouts for the Agilent E8792A and E8793A user connectors E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 WARNING SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the Switch Load Unit or plug in cards Before you remove any installed card disconnect AC power from the mainframe and from other cards that may be connected to the cards CAUTION STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to electrical components observe anti static techniques whenever removing a card from the Switch Load Unit or whenever working on a card J1 Connector Pinouts Figure 6 5 shows the pinouts for connector J1 which provides instrument and Abus access J1 is available only on the Agilent E8792A 32 Pin Matrix Card 6198 6218 Switch Load Unit User Manual 6 9 6 Using the Pin Matrix Cards Figure 6 5 J1 Pinouts Instrument and Abus Access Row a b 3 32 Gnd 511 INST2 31
44. 24 UUT Common System Ground Aux24 23 UUT Common System Ground Aux23 32 22 UUT Common System Ground Aux22 96 Pin DIN C 21 UUT Common System Ground Aux21 Fear AUC ACCEES 20 UUT Common System Ground Aux20 19 UUT Common System Ground Aux19 18 UUT Common System Ground Aux18 17 UUT Common System Ground Aux17 16 UUT Common System Ground Aux16 olojo 15 UUT Common System Ground Aux15 14 UUT Common System Ground Aux14 13 UUT Common System Ground Aux13 12 UUT Common System Ground Aux12 1 UUT Common System Ground Aux11 10 UUT Common System Ground Aux10 9 UUT Common System Ground Aux9 8 UUT Common System Ground Aux8 7 UUT Common System Ground Aux 6 UUT Common System Ground Aux6 5 UUT Common System Ground Aux5 4 UUT Common System Ground Aux4 olojo 3 UUT Common System Ground Aux3 olojo 2 UUT Common System Ground Aux2 1 0 0 0 1 UUT Common System Ground Aux1 b o 6198 E6218A Switch Load Unit User Manual 6 13 6 Using the Pin Matrix Cards P2 Connector Pinouts Figure 6 9 shows the pinouts for connector P2 which provides Row Aux and UUT Common access Figure 6 9 2 Pinouts Row Aux and UUT Common Main Access Aux UUT Common Row 4 Row b a
45. 41 2 4Pwr 4Pwr J 5Load 1 5 5Load 2 5Pwr 5Pwr 2 1 5 6Load 2 6Pwr 6Pwr J 7Load 1 7Load 2 7Pwr 7Pwr E 8Load 1 5 8Load 2 8Pwr 8Pwr E Row 32 Row 31 Row 30 Row 29 Row 28 Row 27 Row 26 Row 25 Row 24 Row 23 Row 22 Row 21 Row 20 Row 19 Row 18 Row 17 Row 16 Row 15 Row 14 Row 13 Row 12 Row 11 Row 10 Row 9 Row 8 Row 7 Row 6 Row 5 Row 4 Row 3 Row 2 Row 1 00000000000000000000000 000000000000000000000000 00000 00000 Columns EpcBa E6198B E6218A Switch Load Unit User Manual 7 Chan1 gt Chan2 gt Chan3 7 Chan4 gt Chand gt Chan6 gt Chan7 gt Chan8 Using Load Cards and Loads J2 Connector Wiring Terminal View Row 32 Row 31 Row 30 Row 29 Row 28 Row 27 Row 26 Row 25 Row 24 Row 23 Row 22 Row 21 Row 20 Row 19 Row 18 Row 17 Row 16 Row 15 Row 14 Row 13 Row 12 Row 11 Row 10 Row 9 Row 8 Row 7 Row 6 Row 5 Row 4 Row 3 Row 2 Row 1 OOO OOO OOO OO nO OOO OOO 000 000 000 000 000 OOO 000 000 000 000 000 000 OOO 000 000 000 OO OO OO OO OO OO OO OO OU OO OU OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OO OOO OOO OO OOOO OOOO OOOO
46. 6 4 Fixture ID 1 Row 3 Fixture ID 2 9 7 Fixture ID 3 Row 4 Fixture ID 4 12 10 Fixture ID 5 Row 5 Fixture ID 6 15 13 Fixture ID 7 Row 6 System Gnd 18 16 System Gnd Row 7 Digital In 0 21 19 Digital In 1 Row 8 Digital In 2 24 22 Digital In 3 Row 9 Digital In 4 27 25 Digital In 5 Row 10 Digital In 6 30 28 Digital In 7 Row 11 Spare DigOut 0 33 31 Spare DigOut 1 Row 12 Spare DigOut 2 36 34 Spare DigOut 3 Row 13 Spare DigOut 4 39 37 Spare DigOut 5 Row 14 Spare DigOut 6 42 140 Spare DigOut 7 Row 15 ISense 1 45 143 ISense 1 Row 16 ISense 2 48 46 ISense 2 Row 17 ISense 3 51 49 3 Row 18 ISense 4 53 52 ISense 4 Row 19 Power Bus Sense 1 57 55 Power Bus Sense 2 Row 20 Power Bus Sense 3 60 58 Power Bus Sense 4 Row 21 Open Drain Out 0 63 61 Drain Out 1 Row 22 Open Drain Out 2 66 64 Open Drain Out 3 Row 23 Open Drain Out 4 69 67 Open Drain Out 5 Row 24 Open Drain Out 6 72 70 Open Drain Out 7 Row 25 12 Vdc Supply 75 73 12 Supply Row 26 12 Supply 78 76 12 Supply Row 27 12 Supply 81 79 Spare Supply Row 28 System Gnd 84 82 System Gnd Row 29 System Gnd 87 85 System Gnd Row 30 No Connection 90 88 No Connection Row 31 System Gnd 93 91 DAC1 Row 32 System Gnd 96 94 DAC2 E6198B E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Card
47. 96 Pin DIN C Backplane Access To Switch Load Unit Decoding and Driver Circuits bohh d c Sen TOES 160 Pin DIN C 160 Pin DIN C Rear Aux Access Row Aux amp UUT P2 Common To UUT pe Rows Matrix Relay Detail Colum 6 20 E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Relay Timer The Relay Timer indicates whether or not the last change to a relay s state opening or closing the relay is complete The timer starts or restarts when a command to change a relay s state is received The timer stops when it times out after an interval sufficiently long for a relay to change state If the relay timer s status is busy as reported by bit 7 of the Status Register see Appendix B relays may not yet be in the desired state If the status is not busy then the relays have reached their newly programmed state The nominal time out value of the relay counter is 500 us OAR Bit 5 in the Control Register controls the OAR open all relays feature which immediately opens all relays on the card Because the bit is self clearing it does not require resetting OAR also clears bits 3 0 of the Column Control amp Protection Bypass Register When executed OAR re triggers the relay timer Reset Bit 0 in the Control Register programmatically resets the card Resetting the card clears all internal registers which resets all board functionality to its default power
48. All 1s state state Read Only Undefined bits readback as all 1s Busy 0 Busy 1 Ready Reset 0 reset active Switch Load Unit is currently being reset 1 reset inactive 6198 E6218A Switch Load Unit User Manual B 5 B Register Definitions Fixture ID R Base 3 The Fixture ID register contains the frame address setting of the Frame Select Jumper JP4 When using multiple Switch Load Units in your test system Jumper JP4 provides a unique address 0 7 for each Switch Load Unit Factory default one Switch Load Unit is 0 Bits Read Fixture ID 7 0 e Default State 255 Read Only Digital Input R Base 4 Digital Input is a direct read back of the logic state present on lines Spare DigIn 0 Spare DigIn 7 of the system resource access connector J104 Bits Read 7 Din 6 Ding Ding Ding Ding Ding Din Ding DAC1 Output MSB W Base 8 Writing to the DAC1 Output register sets the Most Significant Bit MSB of the DACI digital input To set the value of the DAC output always write the MSB first followed by the LSB register offset 9 The output of the DAC will not update until the LSB is written See DAC Scaling Bits 7 Write 5 DAC14 DAC1q 1 DAC1g DAC1 Output LSB W Base 9 Writing to the D
49. Insty3 152 Inst Inst4o Inst Agilent E8782A 24 Instrument 40 Measurement Matrix Card For relays writing a 1 closes the relay writing a 0 opens the relay Register read back for the relay states is not provided Thus state tracking must be done in software Card Type R Base 0 Returns Instrument matrix card type Instrument matrix card without auxiliary returns a card type of 6610 ddddddd 1000010 Instrument matrix card with auxiliary returns a card type of 6710 ddddddd 1000011 Bits 7 6 5 4 3 2 1 0 Read 0 d d d d d d d Card Configuration R Base 1 Instrument matrix card configuration and firmware revision FWR register Initial firmware revision Oh Bits 7 6 5 4 3 2 1 0 Read FWR3 FWR2 FWR1 0 0 0 0 0 Status and Control R W Base 2 This register reads back the card s status It can set the state of DACIRIy DAC2Rly and GndRly relays I can also be used to Reset and Open All Relays OAR Bits 7 5 4 3 2 1 0 Read Busy OAR 0 DA2RIy DAC1Rly GndRly Reset Write X OAE X DAC2RIy DAC1Rly GndRly Reset Read Only 6198 6218 Switch Load Unit User Manual B 71 B 72 Register Definitions Instrument Relay 1 8 W Base 6 e Busy 0 indicates busy 1 indicates not busy Write and Read Bits OAR 0 causes no change 1 causes all relays to
50. Route cable runs to the externally mounted loads so that you can remove other cards without having to disconnect any wiring Clearly identify all cables to externally mounted loads including those on a load plate Use labels numbers color coding or some combination of these methods Cabling to polarity sensitive devices should be labeled appropriately Figure 5 53 Example Load Plate with loads Load boxes would be suitable for use in systems as it can be installed into the system and the wires routed to the load card on the SLU Consider the following when designing load boxes 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Make sure there is enough heat dissipation by using heat sinks and fans to prevent overheating Label clearly the wires coming from the load box to the load cards to avoid wrong connections If load impedances are very small try not to have the load box too far away from the load card UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details
51. Safety Shroud A cover for the Switch Load Unit that protects personnel from possible contact with dangerous voltages on the exposed PC board Self test A test executed by an instrument or system on itself to verify the functionality of the instrument or system Sense See Current sensing Slot Decode Logic The circuitry that interprets the data that represents the physical slot a load card occupies in a Switch Load Unit SLU Switch Load Unit Stand Off Voltage The maximum voltage differential an open relay can tolerate without arcing across the contacts Switching Voltage The nominal voltage differential across a relay s contacts at which it can be switched The switching voltage is typically much less than the standoff voltage Unit Under Test UUT The automotive module or printed circuit board being tested VME Computer backplane architecture standard VXI Computer backplane architecture standard that incorporates both the VMEbus and GPIB communications features 6198 E6218A Switch Load Unit User Manual A 5 A Glossary Of Terms THIS PAGE IS INTENTIONALLY LEFT BLANK A 6 6198 E6218A Switch Load Unit User Manual
52. Transient peak current 8 20 mS 100 Amperes Varistor voltage 9 1 0mA DC 300 Vdc Max Maximum Clamping Voltage 8 20 mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1 mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5 mA Maximum peak pulse current 5 A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C 10 1000 mS refers to a standard pulse of 10 mS rise and 1000 mS to 50 decay of peak value 1 8 20 mS refers to a standard pulse of 8 mS rise and 20 mS to 50 decay of peak value 5 76 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Connecting Loads Loads are mounted externally and connected to the load card via wires or cables The loads are wired to connectors CN1 and CN2 which mate to the Agilent U7179A s J1 and J2 connectors respectively Figure 5 50 shows these connectors Figure 5 50 Agilent U7179A Connectors J1 J2 and Mating Connectors CN1 CN2 Mating Connector J1 for 21 IH z m cm x E r EX gt orsi ra lt m E is Lb ma E m CF aaa 2l re 1e TE Ts el Eie EI Xu T1 Tel Te E G E H H m parm ES xm ES gt psc E 1
53. s 8 a 2 5 o al ca o fe a II e eto RV1 RV7 RV8 65050856865 ay 3 K26 J12 J13 J16 K28 J18 Selecting a Power Supply Configuration As shown in Figure 5 44 power supply connections for the loads are through P100 and P200 to PWR1 and PWR2 J8 respectively You must wire the power supply connectors to the individual channel connectors CH1 through CH8 JA J5 J6 and J7 Use at least a 10 AWG PTFE insulated or 8 AWG vinyl insulated wire to carry 40 A Figure 5 43 shows one possible power supply configuration In this configuration Channel 1 is configured for a single load connected to V Load 8 would be a short to provide a path return Channels 2 and 3 are connected as a bridge load a load that is floating with respect to the power system Other configurations are possible For example the negative terminals of two external power supplies could be connected together at the UUT and the positive terminals could be 6198 E6218A Switch Load Unit User Manual 5 65 5 5 66 Using Load Cards and Loads connected to P100 and P200 respectively and
54. 1 UUT Common Aux1 Row1 1 2 UUT Common Aux2 Row2 3 UUT Common Aux3 Row3 4 UUT Common Aux4 Row4 5 UUT Common Aux5 Row5 6 UUT Common Aux6 Row6 7 UUT Common Aux Row 8 UUT Common Aux8 Row8 9 UUTCommon Aux9 10 UUT Common Aux10 Row10 P2 11 UUT Common Aux11 Row11 96 Pin DIN C 12 UUT Common Aux12 Row12 13 UUT Common Aux13 Row13 14 UUT Common 14 Row14 15 UUT Common Aux15 Row15 UUT Common Aux16 Row16 17 UUT Common Aux17 Row17 18 UUT Common Aux18 Row18 19 UUT Common Aux19 Row19 20 UUT Common Aux20 Row20 21 UUT Common Aux21 Row21 22 UUT Common Aux22 Row22 23 UUT Common Aux23 Row23 24 UUT Common Aux24 Row24 25 UUT Common Aux25 Row25 26 UUT Common Aux26 Row26 27 UUT Common Aux27 Row27 28 UUT Common Aux28 Row28 29 UUT Common Aux29 Row29 30 UUT Common Aux30 Row30 31 UUT Common Aux31 Row31 32 UUT Common Aux32 Row32 Row Aux amp UUT Common Main Access A 32
55. 182 Relay Timer PwrSw1 Relay Slot Chan 2 amp 9 Load 2 Decode Logic 1 Load2 1 Flyback Protection 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 l 1 1 1 1 J3 1 1 1 1 I 1 1 1 1 1 1 1 l 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 4 6 8 J5 1 1 0 o o o wc ISense 1 Load7 LdSense 7 amp 8 LdSense 7 amp 8 i Chan 7 o Load nore 1 1 Chan 8 amp o lt lt J1 even rows 5 8 J1 odd rows 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 4 Agilent E6175A 8 Channel Load Card Layout Card LEM Power Bus Configuration ID Configuration Configuration 57710 LEM Module F1 Isense Resistor F2 6 ve 2 00 LEM Cnfg caver 0000 LEM Module 0000 J5 F3 4 1234 aojam Isense Resistor PWR Cnfg D E ao Cc 9 1234 oolamy li CLI c3 0000 FA _ eree m Channel LL cct LEM Module q E1 5 ens Bridge pe Resistor d L oo l iE ie E d Ww 1 2 nme LEM Module L Hase q m Isense Resistor q 55 5 Do ey uu c3 ETE Sh
56. 32 configuration lines are brought from the custom card to the TC connectors on the Test System Interface Figure 7 1 shows the J2 J6 connectors used to route channels and signals to from the custom card Each of these connectors is routed to a breakout area on the custom card You can make connections from these breakout areas to your custom circuitry A full 16 bits of digital I O is required to emulate the TS 5430 Series I The Switch Load Unit provides 8 channels of digital I O and the custom card provides 8 channels of digital I O The custom card digital I O is the same type of 8 bit digital input and 8 bit digital output Open Drain provided by the Switch Load Unit refer to Digital I O for details The custom card digital I O is available in breakout area J50 see Figure 7 1 E6198B E6218A Switch Load Unit User Manual 7 Using the Custom Card Custom Card Features Figure 7 1 jnoxeoJq deJw eJIM jndui jnoyeaiq esndund jesauab 10 cit Uld ZE WO xny 9jnoJ of pue cf 7 eoepieju 5 159 E saul zr 2 or or 5 Uld 96 8 8 99 989 SHOA ZL 8 OQ IG osr i gt i Anoo 1 bd amp OJUO SOUT pue i
57. 5 Ll 20 20 SIR Oils 8 01 qp Bl L3 a BEAR 3 1 Lig Td 5 9 8 S S 8 8 S 6 S G S 6 Sis S o o o e e o o kst EI E e oje ofo sjo s e sje slo 78 38 Tii e 2 Kis Kz2 o K55 k21 K24 o 57 k25 9 d K27 o ket xcu o kat e Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J4 J7 and each NC terminal is connected to a pin on J8 J11 Each pin on J8 J11 can be connected to any of the four power bus lines on
58. 555555555555555 65555555 2560000 00000000 50000000 8600000 00000000 000000009 9600000100000000100000000 2500000 00000000 090000009 9000005150000000100000000 oooooo20o0990959999999 oo ooo oojo ooo ooo oloo ooo ooo 999999 09099999 6999999 3 9o 999999 6999999 5 9999999 o 9909090901 0099999 0099999 260000 015000000 0120000000 5900000100000000100000000 990000015000000 0120000000 5600000 2000000010000000055555555 2650000 20000000 00000000 00000000 9669999 999999520099909500999990606009990 00000009 0000000 n0000000J o00000090 oo oo 5600000150000000100000000100000000 000000120000000120000000100000000 oo 2600000000000 0 20000000100000000 00 5550000 20000000 00000000100000000 00 9600000 00000000 00000000100000000 00 9500000 20000000 05000000100000000 9999995329099969560999999060909990 00 000000150000000100000000100000000 oo 9999990 00909999099999900000999 00 2000000120000000100000000100000000 6000000 0000000 00000000100000000 00 9600000120000000120000000100000000 2000000 0000000 00000000100000000 00 9600000 20000000 20000000100000000 00 99999553209990956009999906000990 00 000000100000000100000000100000000 oo 9999990 0009999 09999990000999 9000000120000000 00000000100000000 9660000 0000000 0
59. Backplane LEDs J102 Pinouts J801 and J802 provide the high power connections to power busses PB1 PB4 Three supplies with a common connection to PB1 or two independent supplies can be configured on the four power busses Bulk bypassing between power busses may be desirable in certain applications J803 provides the sense connections for the four power busses Two sets of LEDs are provided on the backplane for a visual indication that the Switch Load Unit is functioning Power LEDs The 5V 12V and 12V LEDs indicate the status of the corresponding voltage lines from the Switch Load Unit power supply and READY LED indicate the status of SLU ready to operate If one or more LEDs is NOT illuminated the most likely problem was an overcurrent situation that opened the non resettable fuse s To change fuse s remove power from the Switch Load Unit for approximately 20 seconds The fuse s will reset when power is re applied Non resettable fuses need to be replaced rather than power off to reset refer to Table 3 11 for fuse ratings Frame LEDs The Frame Access LED flashes to indicate a data access has occurred to that Switch Load Unit The five Slot Address LEDs indicate the slot currently being addressed Switch Load Unit backplane connector J102 carries signals such as the Digital I O DAC 1 and 2 and ISense current sense lines When configured as part of a standard Agilent system J102 of the Switch Load Unit is connected vi
60. Figure 5 2 Figure 5 2 Pin Assignments on the Card Configuration Jack 5VCC e Pin lis used for bit 8 on the N9377A card only Pins 2 5 correspond to bits 0 3 respectively Pins 7 10 correspond to bits 4 7 respectively E6198B E6218A Switch Load Unit User Manual 5 5 5 Using Load Cards and Loads See Connecting Loads for more information on addressing loads on the N9378A load card See Connecting Loads for more information on addressing loads on the N9379A load card The configuration pins are normally high with a 10 pull up resistor resident on the load card producing a value of FF Grounding selected pins creates binary codes which can be read back through the interface using the loadCardGetlnfo action See the TS 5000 System Software User s Guide for more information 5 6 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent E6175A 8 Channel Load Card The Agilent E6175A 8 channel high current load card with current sensing is intended to be used with loads mounted inside the Switch Load Unit This card provides great flexibility low series resistance and high current carrying capability Figure 5 3 shows a block diagram of the Agilent E6175A 8 Channel Load Card The card layout is shown in Figure 5 4 The card is two slots wide 4 cm 1 6 inches to allow mounting of larger loads Due to its high current capability it is recommended that you mount it on the
61. Load 10 Load 11 Load 12 Load 13 Load 14 Load 15 Load 16 6198 E6218A Switch Load Unit User Manual Chan 16 E16 Using Load Cards and Loads P2 Connector Front View E1 Channel 1 E2 Channel 2 E3 Channel 3 E4 Channel 4 E5 Channel 5 E6 Channel 6 E7 Channel 7 E8 Channel 8 E9 Channel 9 E10 Channel 10 E11 Channel 11 E12 Channel 12 E13 Channel 13 E14 Channel 14 E15 Channel 15 E16 Channel 16 E C A 5 5 37 5 Using Load Cards and Loads Using the Agilent E6177A 24 Channel Load Card 5 38 The Agilent E6177A 24 channel medium current load card is intended to be used with loads mounted inside the Switch Load Unit Figure 5 27 shows a block diagram of the E6177A The card is one slot wide Card Location Recommendations The card type is 03 Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration on page 41 The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you switch in a special external power supply while bypassing the power bus of the SLU for example Using the Power Switches as General Purpose Relays nine inch by four inch area of sheet metal is left open on the front of the card to allow room for mounting small loads Connecting Loads Each channel is capable of up to 2A c
62. gt iil P2 Connector Asse for J2 E es z 3 Load Wiring Loads 1 through 8 connect to the J1 connector and loads 9 through 16 connect to the JZ connector Each pin is rated for 2A continuous The following figures show details to help you correctly wire loads to the connectors Figure 5 61 shows a load wiring schematic Figure 5 62 shows the connector pin layout Figure 5 63 shows the connector pinouts for J1 and J2 5 90 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 CAUTION Connecting high current loads gt 2 amp per pin can cause premature pin failure Be sure to read Current Sharing of this manual before wiring high current loads 6198 6218 Switch Load Unit User Manual 5 91 5 Using Load Cards and Loads Figure 5 61 N9377A Load Wiring Schematic J1 J1 Chan1 J1 J1 4 Row 4 Load 8 2 Row 3 J2 J2 Chan8 Chan9 Chan16 5 92 E6198B E6218A Switch Load Unit User Manual Figure 5 62 J1 and J2 Connector Layout J1 Connector Wiring Terminal View 00000000000000000000000000000000 1Load 1 7 1Load 2 1Pwr 1Pwr 2Load 1 5 2Load 2 2Pwr 2Pwr a 3Load 1 5 3Load 2 3Pwr 3Pwr 4 4Load 1
63. respectively Please refer Table 3 11 for more detail Table 3 11 Fuses Ratings Standalone Integrated Description Fuse1 Fuse1 1A 12V Fuse2 Fuse2 6 A 12 1 Fuse3 Fuse3 6 A 12 V_2 Fuse4 Fuse4 Not Used Fuseb Fuseb 15 5 V 1 Fuse6 Fuse6 15 51 2 Fuse7 Fuse7 Not Used Fuse8 30 A PB2 Fuse9 30 A PB3 Fuse10 30 A PB4 DC Power Bus Connections to PB4 are the DC power bus connections as seen in Figure 3 11 for the standalone unit Notice the protective cable enclosure covering both the power bus cabling and power sense cabling for better protection For the integrated unit there is no protective cable enclosure and you will need to configure the cabling directly onto the backplane behind the SLU backcover 3 24 6198 E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual 4 Configuring the Switch Load Unit Card Location Recommendations 4 2 Connecting an Additional Spare Power Supply 4 5 Configuring the Power Busses 4 6 Connecting E6198B to the Computer via USB Interface or Parallel Port 4 12 Adding a Second Switch Load Unit 4 13 Load Box Installation 4 14 This chapter shows you how to configure the Switch Load Unit SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the Switch Load Unit or plug in cards Before you remove any inst
64. to DAC2 default 1 closes relay from Inst1 DMM Hi to DAC2 The above values are valid for the Agilent E8792A only When measuring DAC1 or DAC2 system ground must be connected to low side of DMM ISensRly 0 opens relay from Inst16 Spare16 to ISense default 1 closes relay from Inst16 Spare16 to Isense The above value is currently not implemented Writing a 1 to IsensRly disconnects INST16 from the instrument matrix Writing a 0 to IsenseRly connects INST16 to the instrument matrix OAR 0 causes no change 1 causes all relays to open E6198B E6218A Switch Load Unit User Manual Register Definitions B The only difference between OAR and Reset is OAR leaves the state of Manual the same Reset clears the Manual setting Not Used Base 3 Register offset 3 used only for a placeholder to make software addressing simpler Abus control and protection bypass relay W Base 4 Pin card Abus and protection bypass relay control register All relay control registers are positive true logic writing 0 opens the relay and writing 1 closes the relay Bits 7 6 5 4 3 2 1 0 Write PB AB AB AB Writing to PB PB sets state of protection bypass relays Writing to AB4 AB when the Status Control register manual bitis set to 1 sets state of Abus disconnect relays Writing to AB AB when Status Control register manu
65. 0001 K11 G K11 H Channel 2 N A 0010 K11 D K11 A Channel 3 N A 0011 K11 E K11 F Channel 4 N A 0100 K11 B K11 C Channel 5 N A 0101 K12 G K12 H Channel 6 N A 0110 K12 A K12 B Channel 7 N A 0111 K12 E K12 F Channel 8 N A 1000 K12 C K12 D No Channel N A 1001 1111 None Load Select W Base 04 The register controls the Load Select switch armature relays K1 K8 of the card one bit per channel The register uses positive logic i e 1 closed At reset no channel is selected BIT 7 6 5 4 3 2 1 0 PURPOSE CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH 1 SETTING State State State State State State State State It is possible to close more than one channel at a time Since the trace from P2 to J41 can only carry 30 Amps the total current of all the channel must be less than or equal to 30 Amps Agilent N9377A 16 Channel Dual Load Load Card The Agilent N9377A dual load load card lets you use the same channel to test of shorts to ground and Vbatt or tests that require two types of load for different parts of the test The card provides current sense pull up down and flyback protection E6198B E6218A Switch Load Unit User Manual Register Definitions The card also provides Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent N9377A 16 Channel Dual Load Load Card for more information Unless o
66. 1 0 Write Insto4 11563 11562 115651 115650 Inst4o Inst4a Inst47 ABUS4 to Row Row Relay 1 8 W Base 29 41 10 Bits 7 6 5 4 3 2 1 0 Dee en Rn Rn Row Relay 9 16 W Base 2An 4240 7 6 5 4 3 2 1 0 Write ROW46 Row45 Row44 Row 43 Row 9 6198 6218 Switch Load Unit User Manual B 79 B Register Definitions Row Relay 17 24 W Base 2B 4349 Row Relay 25 32 W Row Relay 33 40 W Bits 7 6 5 4 3 2 1 0 Write Row 4 Row 9 Row 49 Row 1g Row 17 Base 2C 4449 Bits 7 6 5 4 3 2 1 0 Write Row39 Row Rowss Base 20 4549 Bits 7 6 5 4 3 2 1 0 Write Row39 Row35 Row34 Row33 Agilent E8783A 64 Pin Matrix Card For relays writing a 1 closes the relay writing a 0 opens the relay Register read back for the relay states is not provided Thus state tracking must be done in software Card Type R Base 0 Returns measurement matrix card type Measurement matrix card without auxiliary returns a card type of 7010 ddddddd 1000110 Measurement matrix card with auxiliary returns a card type of 7110 ddddddd 1000111 Bits 7 6 5 Read d d
67. 13 48 45 42 39 36 33 30 27 24 21 88 85 82 79 76 73 70 67 64 61 58 55 52 49 46 43 40 37 34 31 28 25 22 94 91 961 93 90 87 84 81 78 75 72 69 66 63 60 57 54 51 System Gnd Fixture ID 0 Fixture ID 2 Fixture ID 4 Fixture ID 6 System Gnd Digital In 0 Digital In 2 Digital In 4 Digital In 6 Spare DigOut 0 Spare DigOut 2 Spare DigOut 4 Spare DigOut 6 ISense 1 ISense 2 ISense 3 ISense 4 Power Bus Sense 1 Power Bus Sense 3 Open Drain Out 0 Open Drain Out 2 Open Drain Out 4 Open Drain Out 6 12 Vdc Supply 12 Vdc Supply 12 Vdc Supply System Gnd System Gnd No Connection System Gnd System Gnd For E6198B Standalone option connector J102 is extended from the backplane to the breakout board See Figure 3 8 3 17 6198 E6218A Switch Load Unit User Manual J Switch Load Unit and Plug In Cards Figure 3 10 Cable Connector Pinouts Cable Connector Endand Front View Center Column Not Used 3 18 ABC Row 1 System Gnd 3 1 System Gnd Row 2 Fixture ID 0
68. 32 x 4 structure lets you connect any system resource to any pin on the UUT This matrix along with the unswitched UUT Common allows as many as four system resources to be connected simultaneously E6198B E6218A Switch Load Unit User Manual 6 3 6 Using the Pin Matrix Cards Disconnect Relays automatically disconnect unused columns to minimize capacitive loading effects from the Analog Bus This makes it possible to expand the system without degrading the accuracy of measurements Besides the 32 x 4 matrix of relays there are switched auxiliary I O lines AUXI through AUX32 connected to each of the 32 rows These ports are for digital I O operations or other user defined applications For example you can close any of these auxiliary relays to connect a digital sensing source or other low impedance system resource such an event detector or digital input card to a pin on the UUT Because these auxiliary inputs are available on any of the 32 rows and on 32 Pin Matrix Card connectors J2 and P2 many inputs can be connected at once Additional features include an integrated relay timer the ability to open all relays with a single bit and series protection resistors that can be bypassed programmatically These features are individually described the following paragraphs starting on page 6 7 E6198B E6218A Switch Load Unit User Manual Figure 6 2 Agilent E8792A Detailed Block Diagram 96 Pin DIN C To Instruments Abus Access
69. 4 3 2 1 0 Write 11554 Insto4 22 Insto4 Instog Insty9 Instyg Inst47 B 74 E6198B E6218A Switch Load Unit User Manual Register Definitions B ABUS1 to Row Row Relay 1 8 W Base 11 1740 Bits 7 6 5 4 3 2 1 0 Write Rowg Row Rowg Rows Row Rows Row Row Relay 9 16 W Base 12 1849 Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row43 Row42 Row Row Relay 17 24 W Base 13h 1949 Bits 7 6 5 4 3 2 1 0 Write Row 4 Row Row22 Row Row 49 Row47 Row Relay 25 32 W Base 14n 2049 Bits 7 6 5 4 3 2 1 0 Write Rows Row39 Row g Row Row s Row Relay 33 40 W Base 15h 2149 Bits 7 6 5 4 3 2 1 0 Write Row39 Row36 Row35 Row34 Row33 E6198B E6218A Switch Load Unit User Manual B 75 B Register Definitions ABUS2 to Instrument Bus Instrument Relay 1 8 W Base 16h 2210 Bits 7 6 5 4 3 2 1 0 Write Instg Insty Instg Insts Inst4 Insta Inst Inst Instrument Relay 9 16 W Base 17h 2349 Bits 7 6 5 4 3 2 1 0 Write 11556 1155 11554 1153 11542 Inst44 Inst4o Instg Instrument Relay 17 24 W Bas
70. 5 15 on page 22 To prevent premature pin failure from excessive current flow when connecting high current gt 3 amp loads to wire across all Even Rows J1 CN1 16A j16C Load 1 es 59 Channel 1 Channel 2 d o Channel 3 1i 4A Load 2 j14E 112A 12 c Load 3 1 Channel 4 Channel 5 Channel 6 Channel 7 NEUE um Channel 8 PRE OA 10 Load 4 gt Load 5 m 6 6 Load 6 SC Power 6 T T 2 2 Load 7 t lt BES 1 7 e 2 g 2c L 12122 4 Power8 oad8 L K lt lt itle e Odd Rows CN1 11 15A 15c 13A 13C 13 1 uci 11E Power 2 Power 3 9ci Power 4 Ko m 7 7c 7 Power 5 6198 6218 Switch Load Unit User Manual CN1 Connector Wiring Terminal View Row 16 Row 15 Row 14 Row 13 Row 12 Row 11 Row 10 Row 9 Row 8 Row 7 Row 6 Row 5 Row 4 Row 3 Row 2 Row 1 Co Co Co CI CI t Channe Power Channe Power 2 Channe Power 3 Channe Power4 Channe Power 5 Channe Power 6 Channe Power 7 Channe Power 8 2 3 4 5 6 7 8 Load 1 Load 2 Load 3 Load 4 Load 5 Load 6 Load 7 Load 8 5 21 5 Using Load Card
71. 5 4 3 2 1 0 Write Rowg Row Rowg Rows Row Rows Row Row Relay 9 16 W Base 27h 3949 Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row 9 6198 6218 Switch Load Unit User Manual B 87 B Register Definitions Row Relay 17 24 W Base 28 4049 Bits 7 6 5 4 3 2 1 0 Write Row 4 Row23 Row29 Row 4g Row47 Row Relay 25 32 W Base 29 41 10 7 6 5 4 3 2 1 0 Write Rows Row34 Row39 Row g Row 25 Row Relay 33 40 W Base 2A 4249 Bits 7 6 5 4 3 2 1 0 Write Row39 Row36 Row35 Row34 Row33 Row Relay 41 48 W Base 2B 4349 Bits 7 6 5 4 3 2 1 0 Write Rowa47 5 Row44 Row43 Rowa42 Row44 Row Relay 49 56 W Base 2C 4449 Bits 7 6 5 4 3 2 1 0 Write 55 Rows4 Rows3 Rows2 Rows Row Relay 57 64 W Base 20 4540 7 6 5 4 3 2 1 0 Write Rowgs Rowg2 Rowe Rowsg Rows7 B 88 E6198B E6218A Switch Load Unit User Manual Register Definitions B Agilent E8794A Cus
72. 6 7 shows two typical BNC cables used for instrument connetions to J1 J2 Connector Pinouts Figure 6 7 Instrument BNC Cables No Connection Signal Drain Low Signal B No Connection Non Isolated BNC coax to 3x1 E3750 61604 1 Meter E6170 61614 2 Meter jt 7 Isolated BNC coax to 3x1 E3750 61621 1 Meter E6170 61612 2 Meter ctn Warning Use aC only with Red Isolated isolated Cable Marker L2stuments Red Isolated Cable Marker E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Figure 6 8 shows the pinouts for connector J2 which provides rear Aux line access Figure 6 8 J2 Pinouts Rear Aux Access UUT Common Aux X Row a b c 32 UUT Common System Ground Aux32 31 UUT Common System Ground Aux31 30 UUT Common System Ground Aux30 29 UUT Common System Ground Aux29 28 UUT Common System Ground Aux28 27 UUT Common System Ground Aux27 26 UUT Common System Ground Aux26 25 UUT Common System Ground Aux25
73. 6198 6218 Switch Load Unit User Manual 5 23 5 Using Load Cards and Loads Figure 5 16 Agilent E6175A 8 Channel High Current Load Card UUT Connections P2 Connector Front View E1 Channel 1 NC Channel 2 NC Channel 3 NC Channel 4 NC Channel 5 NC Channel 6 NC Channel 7 NC Channel 8 NC E3 E5 E7 E9 E11 E13 E15 NC No Connection E C A 5 24 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent E6176A 16 Channel Load Card A block diagram of the Agilent E6176A 16 Channel High Current Load Card is shown in Figure 5 17 The load card layout is shown in Figure 5 18 The single slot design offers high load density for high current loads where current transducers and bridge drive configurations are not required The card is one slot wide Card Location Recommendations The card type is 02 Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration The factory default is to load a 0 050 0 1 Isense resistor in each channel Selecting a Current Sense Resistor Value e The flyback protection is connected from both the normally open NO and normally closed NC power switch connections Selecting and Loading Flyback Protection Loads are mounted externally and interface to the card using two load connectors J1 and J2 Connecting Loads 6198 E6218A Sw
74. A select N A N A N A N A select select 17 24 Load Load select select Load Load N A N A N A N A N A N A N A N A select select Load Load Base D N A N A N A N A N A N A N A N A select select Load Load Base E N A N A N A N A N A N A N A N A select select Load Load Base F N A N A N A N A N A N A N A N A select select Load Load Base 10 N A N A N A N A N A N A N A N A select select Load Load Base 11 N A N A N A N A N A N A N A N A select select Base 12 N A N A N A N A N A N A N A N A Power Load select select 13 N A N A N A N A N A N A N A N A Power Power select select BasecM N A N A N A N A N A N A N A N A Power Power select select The Agilent E6175A Load Card is a highly flexible load card for high current loads mounted directly on a sheet metal panel attached to the load card The card provides current sense both resistive and transducer type pull up down flyback protection and bridge load capabilities The card also provides Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent E6175A 8 Channel Load Card for more information E6198B E6218A Switch Load Unit User Manual Register Definitions Registers definitions for the card follow Card Type R Base 0 This register reads back the Card Type 01 of the
75. Aux12 Aux44 UUT Common 13 Row 13 Row45 Aux13 Aux45 UUT Common 14 Row 14 Row46 Aux14 Aux46 UUT Common 15 Row 15 Row 47 Aux15 Aux47 UUT Common 16 Row 16 Row 48 Aux16 Aux48 UUT Common 17 Row 17 Row 49 Aux17 Aux49 UUT Common 18 Row 18 Row 50 Aux18 Aux50 UUT Common 19 Row 19 Row 51 Aux19 51 UUT Common 20 Row20 Row52 Aux20 Aux52 UUT Common 21 Row 21 Row53 Aux21 Aux53 UUT Common 22 Row 22 Row 54 Aux22 Aux54 UUT Common 23 Row 23 Row 55 Aux23 Aux55 UUT Common 24 Row 24 Row 56 Aux24 Aux56 UUT Common 25 Row 25 Row 57 Aux25 Aux57 UUT Common 26 Row26 Row58 Aux26 Aux58 UUT Common 27 Row 27 Row 59 Aux27 Aux59 UUT Common 28 Row 28 Row60 Aux28 Aux60 UUT Common 29 Row 29 Row61 Aux29 Aux61 UUT Common 30 Row30 Row62 Aux30 Aux62 UUT Common gt 31 Row 31 63 Aux31 Aux63 UUT Common 32 Row 32 Row64 Aux32 Aux64 UUT Common P2 160 Pin DIN Row Aux amp UUT Common To UUT 6 28 E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Installing in the Switch Load Unit The Agilent E8782A E8783A 64 Pin Matrix Card can be installed in any available Switch Load Unit slot The Analog Bus connection cables require that all 64 Pin Matrix Cards be in adjacent slots so the cables will be able to reach each slot Figure 6 20 shows a typical installation Figure 6 20 Installed 32 Pin Matrix Cards Agi
76. B Register Definitions Not Used Base 5 Register offser 5h used only for placeholder to make software addressing simpler Aux Relays Not available for Measurement matrix card without auxiliary Auxilary Relay 1 8 W Base 6 Bits 7 6 5 4 3 2 1 0 Write Auxg Aux7 AUXg Auxs Aux Aux3 Aux Auxilary Relay 9 16 W Base 7 Bits 7 6 5 4 3 2 1 0 Write AuX4g AuX45 AUX44 AUX45 AUX42 AUX44 AuX49 AUXg Auxilary Relay 17 24 W Base 8 7 6 5 4 3 2 1 0 Write AuX24 AUX2 AUX 24 20 AUX49 AUX4g AUX47 Auxilary Relay 25 32 W Base 9 Bits 7 6 5 4 3 2 1 0 Write AuX32 AUXa4 AUX2g AUX g 27 AUX2g AUX95 Auxilary Relay 33 40 W Base 1049 Bits 7 6 5 4 3 2 1 0 Write AuXag 7 AUX36 AUX35 AUX34 AUX33 B 82 E6198B E6218A Switch Load Unit User Manual Auxilary Relay 41 48 W Base Bn 1149 Register Definitions Bits 7 6 5 4 3 2 1 0 Write AuX4g AuXa7 AUX46 5 AUX44 AUX43 AUX42 AUX41 Auxilary Relay 49 56 W Base Ch 1249 Bits 7 6 5 4 3 2 1
77. Card 1 can be cabled to J5 and 32 Pin Matrix Card 2 can be cabled to J6 Figure 7 4 shows the J5 and J6 connector breakouts when cable part number E3751 61601 is used to connect the 32 Pin Matrix Card s to J5 and J6 Figure 7 5 J5 and J6 Breakouts 32 Pin Matrix Cards Aux J5 UUTCom J5 To Pin Matrix 1 To Pin Matrix 2 Aux1 J6 UUTCom J6 SN J5 Breakouts J6 1 NS UUTCommon J6 Aux32 J6 UUTCommon J5 Aux32 J5 Note Pinout for Aux and UUT Common connections is valid when cable p n E3751 61601 is used to connect to pin matrix cards 6198 E6218A Switch Load Unit User Manual 7 7 Q loloolololo o olo ool ololelolololo o olo ool ololoolololo o olo olo ololoolololo o olo olo olojoolololo o olo olo olojoolololo o olo o o 7 9 shows a 3 J3 J4 J 5000000000 igure 00000000000000000000000000000 5 5
78. Current Load Card is a single slot design requiring externally mounted loads This load card offers high load density for high current loads where current transducers and bridge drive configuration are not required The Agilent E6177A 24 Channel Medium Current Load Card for non inductive loads is intended to be used with loads mounted on the card A 9 inch by 4 inch area of sheet metal is open on the front of the card for mounting small loads This card is one slot wide and capable of up to ZA continuous carry current E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 The Agilent U7177A 24 Channel Medium Current Load Card for non inductive loads with integral current sensing is intended to be used with externally mounted loads This card is one slot wide and capable of up to 2A continuous carry current The Agilent E6178B 8 Channel Heavy Duty Load Card is designed for very high current applications of up to 30A per channel The N937xA load cards support multiple loads per channel either dual loads two loads per channel or quad loads four loads per channel The Agilent U7178A 8 Channel Heavy Duty Load Card is designed for very high current applications of up to 40 A per channel The Agilent U7179A 16 Channel High Current Load Card is designed for high current applications requiring externally mounted loads This card is capable of up to 15 A continuous carry current 6198 E6218A Swit
79. Disconnect 1 8 W Base 4 This register controls the relays that connect Loadx to Chanx for channels 1 8 See Figure B 1 Bit 7 6 5 4 3 2 1 0 Purpose K524 K521 K518 K515 K512 K509 K506 K503 Chan8 Chan Chan6 Chan5 Chan4 Chan3 Chan2 Chan1 Setting State State State State State State State State Write Only State 0 open 1 closed Power On Reset State 0 all channels open Load Disconnect 9 16 W Base 5 This register controls the relays that connect Loadx to Chanx for channels 9 16 See Figure B 1 Bit 7 6 5 4 3 2 1 0 Purpose K624 K621 K618 K615 K612 K609 K606 K603 Chan16 15 14 Chan13 12 Chan11 Chan10 Chan9 Setting State State State State State State State State Write Only State 0 open 1 closed Power On Reset State 0 all channels open Power Select 1 8 W Base 6 This register controls the Pull Up Down Power Select armature relays for power to channels 1 8 See Figure B 1 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected depend upon how the card is configured by the user Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K522 K519 K516 K513 K510 K507 K504 K501 Chan8 Chan Chan6 Chan5 Chan4 Chan3 Chan2 Chan1 Setting State State State State
80. E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B E6218A Switch Load Unit User Manual 1 Legal Information Legal Information Warranty 1 2 Technology Licenses 1 2 Restricted Rights Legend 1 2 Service and Support 1 3 Agilent on the Web 1 3 Agilent By Phone 1 3 B e 1 2 Agilent Technologies 1 Legal Information Legal Information 1 2 Warranty The material contained in this document is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a particular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or performance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the separate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If softwa
81. E8793A 1149 0B Partially loaded pin card w out instrumentation multiplexer Agilent E8782A 6719 43 Fully loaded pin card includes instrumentation multiplexer and with AUX pin Agilent E8783A 7149 47 Fully loaded pin card includes AUX pin but w out instrumentation multiplexer Agilent E8794A 20 144 Custom Card Agilent E6198B 5049 32 Backplane Rev A Base Address All register address definitions are with respect to a base address as follows The Switch Load Unit base address is defined as the slot base address for slot 0 Base FFF00000 000000005 The Base address for the cards within the Switch Load Unit is defined as Base FFFSSSSS 000000005 Where SSSSS is any binary value from slot numbers For example The base address for a load card inserted in slot 20 of the first Switch Load Unit would be Frame 1 0015 Slot 20 101005 Register 0 000000005 Base Address 00110100000000005 or 3400 6198 E6218A Switch Load Unit User Manual B 3 Register Definitions Switch Load Unit Register Definitions The Switch Load Unit registers are defined in the following tables Each register has a W or R following the section title This indicates whether the register is a R read only or W write only register The following registers are with respect to a Switch Load Unit base address corresponding to FFF00000000000005 on the Switch Load Unit selected Table B 3 summarizes the
82. Figure 5 27 Agilent E6177A 24 Channel Medium Current Load Card Block Diagram 5 39 Figure 5 28 Agilent E6177A 24 Channel Load Card Layout 5 40 Figure 5 29 Using the 24 Channel Load Card Switches as GP Relays 5 42 Figure 5 30 Agilent E6177A Load Mounting Area and CN1 J1 Connectors 5 43 Figure 5 31 Agilent E6177A Load Wiring Schematic and Pinouts 5 44 Figure 5 32 Agilent E6177A 24 Channel Medium Current Load Card UUT Connections 5 46 Figure 5 33 Agilent U7177A 24 Channel Medium Current Load Card Block Diagram 5 48 Figure 5 34 The U7177A Layout 5 49 Figure 5 35 Using the 24 Channel Load Card Switches as GP Relays 5 51 Figure 5 36 Agilent U7177A Connector J1 and Mating Connector 5 52 Figure 5 37 Agilent U7177A Load Wiring Schematic Pinouts 5 53 Figure 5 38 Agilent U7177A 24 Channel Medium Current Load Card UUT Connections 5 54 Figure 5 39 Agilent E6178B 8 Channel Heavy Duty Load Card Block Diagram 5 56 Figure 5 40 Agilent E6178B 8 Channel Heavy Duty Load Card Layout 5 57 Figure 5 41 Typical Agilent E6178B Load Card Flyback Protection Circuit 5 60 6198 E6218A Switch Load Unit User Manual Figure 5 42 Agilent E6178B Load Card Wiring 5 62 Figure 5 43 Agilent U7178A 8 Channel Heavy Duty Load Card Block Diagram 5 64 Figure 5 44 Agilent U7178A 8 Channel Heavy Duty Load Card Layout 5 65 Figure 5 45 Typical Agilent U7178A load card flyback protection circuit 5 68 Figure 5 46 Agilent U7178A
83. Flyback Protection ISense 750 p22 lt Bridge Load Example CH3 LEM Current Transducer Flyback Protection ISense Sense 750 J33 9 lt lt 5 56 Load 2 lt lt N _ Flyback Protection LEM Current Transducer bomer 4 LEM Current Transducer Flyback Protection CH3 bus CH8 bus CH1 bus Data Power 5 X12V CH2 bus GPIB 14AWG Teflon Insultated Wires 1 1 Bridge Load CHI Jumper CH2 G 1 Power SD P100 Supply CH4 Remote Sense 9 i cu P200 CH8 19 ME m J101 J103 J105 J107 To Optional Remote Sense P2 Connection at UUT 12 12 GND amp To Load Relays lt External Drive Connector To _______ Relays 8 P3 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 40 Agilent E6178B 8 Channel Heavy Duty Load Card Layout CHI CH2 CH3 CH4 NC CHS eS
84. Input Bit Proximity Detector Open Drain Digital Output The digital output bits use open drain drive circuitry designed for pull ups up to 24 Vdc The output port FET can sink up to 250 mA Figure 3 4 shows one digital output bit controlling a relay Figure 3 4 Digital Output Example 24 Vdc Open Drain Digital Output Bit 3 6 E6198B E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Cards 3 DAC Channels The two 14 bit channels of DAC provide 16 V at 10 mA each To provide this voltage swing a charge pump is used to step up the 12 V supply The DAC channels are typically used for controlling differential input voltage controlled power supplies 5 12 Vdc 12 Vdc Spare Power 5 V 12 V and 12V from the Switch Load Unit Power Supply The 5 V supply can deliver 7 5 A to 30 A 12 V supply can deliver 2 5 A to 12 5 A and the 12 V supply can deliver 700 mA to 1 A You can also connect an additional spare power supply to the Switch Load Unit backplane see Connecting an Additional Spare Power Supply for details Power supplies 5 V 12 V and 12 V for E6198B have non resettable fuses Non resettable fuses need to be replaced refer to Table 3 11 for fuse ratings Spare supply has resettable fuse If an overload occurs the fuse s open To reset the fuse s remove power from the Switch Load Unit for approximately 20 seconds The fuse s reset w
85. J12 via jumper wires See Figure 5 47 The terminal block jumper allows convenient connection of pull up or pull down voltages to the various inputs It also allows for terminating a UUT load at a different voltage than ground For example the channel could be connected to 12 volts on one side and 5 volts on the other The factory default is to provide two jumper combs one that ties all the pins on J4 J7 NO together and one that ties all the pins on J8 J11 NC together The NO pins are jumpered to 6198 E6218A Switch Load Unit User Manual 5 73 5 5 74 Using Load Cards and Loads power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J4 Jll can be easily cut to provide bus or pin isolation between the various input power bus connections Selecting a Current Sense Resistor Value The card comes factory loaded with a 1 5 watt 0 005 1 sense resistor already installed for every channel This is the lowest value sense resistor that can be installed safely If lower value currents are being measured requiring a larger resistance value to make the sense voltage readable then replace the sense resistor with a four wire resistor of higher value Selecting a Load Fuse CAUTION The load fuses used are Littelfuse 0218015MXP 5x20 millimeter 15 amp These fuses may be replaced with other fuses but the fuse value must not be higher than 15 amps The maximum fuse rating must not exceed an I2
86. J3 J8 i i i i e i i i i i i i i i i i i i i i J10 J15 B i i i i i iSense TR 1 924 pp2 24 Chan24 9 o lt o Common NC24 J1 i H 5 48 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Card Layout Figure 5 34 The U7177A Layout Power Bus Card Configuration ID Configuration PB2 PB4 o PpB3 9 co 5 1 mo pes io k18 K15 K14 K13 18512 758510 5858 28518 28516 20514 24 22 K21 K20 6517 28515 56813 28524 39522 56520 J8 o o o o NO 0000 0000 o o o olNC J10 m J7 o 0 o o 0000 J11 9 7 5 3 J6 0000 J12 J5 o 0 0 o 0000 J13 J4 0000 J14 23 21 19 17 15 13 11 24 22 20 18 16 14 12 10 8 6 4 2 J15 J3 oooo 0000 0000 0000 m Lx o Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J3 J8 and each NC terminal is connected to a pin on J10 J15 Each pin on J3 J15 can be connected to any of the four power busses on J9 via jumper wires See Figure 5 33 The termin
87. K222 K322 K422 K922 Row23 K123 K223 K323 K423 K923 Row24 K124 K224 K324 K424 K924 Row25 K125 K225 K325 K425 K925 Row26 K126 K226 K326 K426 K926 Row27 K127 K227 K327 K427 K927 Row28 K128 K228 K328 K428 K928 Row29 K129 K229 K329 K429 K929 Row30 K130 K230 K330 K430 K930 Row31 K131 K231 K331 K431 K931 Row32 K132 K232 K332 K432 K932 Row33 K133 K233 K333 K433 K933 Row34 K134 K234 K334 K434 K934 Row35 K135 K235 K335 K435 K935 Row36 K136 K236 K336 K436 K936 Row37 K137 K237 K337 K437 K937 Row38 K138 K238 K338 K438 K938 Row39 K139 K239 K339 K439 K939 Row40 K140 K240 K340 K40 K940 Row41 K141 K241 K341 K441 K941 Row42 K142 K242 K342 K442 K942 Row43 K143 K243 K343 K443 K943 Row44 K144 K244 K344 K544 K944 6198 E6218A Switch Load Unit User Manual C C Repair Information Table C 6 Measurement Matrix Relays for E8783A continued Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row45 K145 K245 K345 K445 K945 Row46 K146 K246 K346 K446 K946 Row47 K147 K247 K347 K447 K947 Row48 K148 K248 K348 K448 K948 Row49 K149 K249 K349 K449 K949 Row50 K150 K250 K350 K450 K950 Row51 K151 K251 K351 K452 K951 Row52 K152 K252 K352 K442 K952 Row53 K153 K253 K353 K453 K953 Row54 K154 K254 K354 K454 K954 Row55 K155 K255 K355 K455 K955 Row56 K156 K256 K356 K456 K956 Row57 K157 K257 K357 K457 K957 Row58 K158 K258 K358 K458 K958 Row59 K159 K259 K3
88. K419 K919 Inst20 K120 K220 K320 K420 K920 Inst21 K121 K221 K321 K421 K921 Inst22 K122 K222 K322 K422 K922 Ins23 K123 K223 K323 K423 K923 Inst24 K124 K224 K324 K424 K924 Row1 K125 K225 K325 K425 K925 Row2 K126 K226 K326 K426 K926 Row3 K127 K227 K327 K427 K927 Row4 K128 K228 K328 K428 K928 Row5 K129 K229 K329 K429 K929 Row6 K130 K230 K330 K430 K930 Row7 K131 K231 K331 K431 K931 Row8 K132 K232 K332 K432 K932 Row9 K133 K233 K333 K433 K933 Row10 K134 K234 K334 K434 K934 Row11 K135 K235 K335 K435 K935 Row12 K136 K236 K336 K436 K936 Row13 K137 K237 K337 K437 K937 Row14 K138 K238 K338 K438 K938 Row15 K139 K239 K339 K439 K939 Row16 K140 K240 K340 K40 K940 Row17 K141 K241 K341 K441 K941 Row18 K142 K242 K342 K442 K942 Row19 K143 K243 K343 K443 K943 Row20 K144 K244 K344 K544 K944 Row21 K145 K245 K345 K445 K945 Row22 K146 K246 K346 K446 K946 Row23 K147 K247 K347 K447 K947 Row24 K148 K248 K348 K448 K948 Row25 K149 K249 K349 K449 K949 E6198B E6218A Switch Load Unit User Manual C 9 C C 10 Repair Information Table C 5 Measurement Matrix Relays for E8782A continued Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row26 K150 K250 K350 K450 K950 Row27 K151 K251 K351 K452 K951 Row28 K152 K252 K352 K442 K952 Row29 K153 K253 K353 K453 K953 Row30 K154 K254 K354 K454 K
89. Load Cards and Loads 5 Varistor voltage 1 0mA DC 300 Vdc Max Maximum Clamping Voltage 8 20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current 5A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C Load and UUT Connections Figure 5 42 shows how the Agilent E6178B Load Card is wired Connect loads between J11 J18 and J31 J38 Loads are external to the load card and connected to the load card via cables Connectors J11 and J31 connect to Channel 1 connectors J12 and J32 connect to Channel 2 etc When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make UUT and power supply connections directly to CN2 as shown in Figure 5 42 6198 E6218A Switch Load Unit User Manual 5 61 5 Using Load Cards and Loads Figure 5 42 Agilent E6178B Load Card Wiring To Power Supply Ch 1 3 UUT Power Supply Remote Sense Ch 4 8 UUT Default Setting is Remote Po S M o NO s QD r o Seer 2 ai oz ue vio 1
90. Options 5 95 UUT Connections 5 96 Using the Agilent N9378A 24 Channel Low Resistance Load Card 5 97 Selecting a Power Supply Configuration 5 100 Using the Power Switches as General Purpose Relays 5 100 Connecting Loads 5 101 Installing and Removing Mezzanine Cards 5 102 Wiring the Mezzanine Cards 5 103 UUT Connections 5 103 Using the Agilent N9379A 48 Channel High Density Load Card 5 105 Card Layout 5 107 Load Circuit Details 5 109 Selecting a Power Supply Configuration 5 109 Using the Power Switches as General Purpose Relays 5 110 Connecting Loads 5 110 E6198B E6218A Switch Load Unit User Manual 6 Using the Pin Matrix Cards Using the 32 Pin Matrix Cards 6 2 Conceptual Overview 6 2 Features 6 2 Detailed Block Diagram Descriptions 6 3 Differences Between the Cards 6 3 Features Common to Both Cards 6 3 Relay Timer 6 7 Column Disconnect Relay Control 6 7 6 7 Reset 6 7 Protection Bypass 6 8 Reset State 6 8 User Connectors and Pinouts 6 8 J1 Connector Pinouts 6 9 J1 Instrument Connections 6 11 P2 Connector Pinouts 6 14 Installing in the Switch Load Unit 6 15 Using the 64 Pin Matrix Cards 6 16 Conceptual Overview 6 16 Features 6 16 Detailed Block Diagram Descriptions 6 17 Differences Between the Cards 6 17 Features Common to Both Cards 6 17 OAR 6 21 Reset 6 21 Protection Bypass 6 21 Reset State 6 22 User Connectors and Pinouts 6 22 J1 Connector Pinouts 6 23 P2 Connector Pinout
91. State State State State B 38 Write Only E6198B E6218A Switch Load Unit User Manual Register Definitions State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Power Select 9 16 W 7 This register controls the Pull Up Down Power Select armature relays for power to channels 9 16 See Figure B 1 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected depend upon how the card is configured by the user Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K622 K619 K616 K613 K610 K607 K604 K601 Chan16 15 14 Chan13 12 Chan11 Chan10 Chan9 Setting State State State State State State State State Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Load Select 1 8 W Base 8 This register controls the load selection relays for channels 1 8 letting you switch between two different loads for that channel See Figure B 1 For x 1 8 Bit 7 6 5 4 3 2 1 0 Purpose K523 K520 K517 K514 K511 K508 K505 K502 Chan8 Chan Chan6 Chan5 Chan4 Chan3 Chan2 Chan1 Setting State State State State State State State State
92. Switch Load Unit registers Table B 3 Switch Load Unit Registers Register Offset Definitions Type Base Card Type Read Only Base 1 Card Configuration Read Only Base 24 Status Register Read Only Base 3 Fixture ID Read Only Base 4 Digital Input Read Only Base 51 7h Not Used Base 8 DAC1 Output MSB Write Only Base 9 DAC1 Output LSB Write Only Base Control Register Write Only Base Open Drain Output Write Only Base Digital Output Write Only Base Dy DAC2 Output MSB Write Only Base DAC2 Output LSB Write Only Base Fh Not Used E6198B E6218A Switch Load Unit User Manual Register Definitions Card Type R Base 0 This register reads back 32 5010 for E6198B for the Switch Load Unit Bits 7 0 Read Card Type Setting E6198B 325 Read Only Power On Reset State 32 5010 for E6198B Card Configuration R Base 1 For the Switch Load Unit this register always returns FF 25510 Bits 7 0 Card Configuration Setting FFh Status Register R Base 2 The status register provides readback of the current Reset and Busy status of the backplane is an open collector line that any slot can drive to indicate its status typically a relay timer The state of Busy upon reset may be transient Bits 7 2 1 0 Read Undefined Reset Busy Setting
93. Type Setting 0 0 0 0 0 1 1 0 Read Only Power On Reset State 06 Card Configuration Base 1 This register reads back the card configuration Card configuration is determined by the user to distinguish different load configurations on the same load card type The default read back is FF but you can pull down bits to zero as required to create a configuration byte unique to the card Note that you can use the mezzanine card registers described below for load configuration information Use the actions 1oadCardGetInfo to read this register Bit 7 6 5 4 3 2 1 0 Purpose undefined undefined undefined undefined undefined undefined CC1 CCO Setting X X X X X X state state Read Only 6198 E6218A Switch Load Unit User Manual undefined Status amp Control 4 W 2 This register reads back the card s status It also can be used to reset the board or open all relays OAR B Register Definitions Card status is defined as the state of the relay timer The relay timer is designed for the armature relays gt 4ms The timer restarts whenever the registers controlling the respective relays are written to or the card is reset The card remains in the busy state until the timer has timed out Bit 7 6 5 4 3 2 1 0 Read 1 1 1 1 1 1 1 Busy Write not used not used OAR not used not used not used not used Reset B 52 Read and Write Unde
94. UUT Common AUX 37 27 Aux6 UUT Common System Ground UUT Common AUX 38 26 Aux UUT Common System Ground UUT Common AUX 39 25 Aux8 UUT Common System Ground UUT Common AUX 40 24 Aux9 UUT Common System Ground NC NC 23 Aux10 UUT Common System Ground NC NC 22 Aux11 UUT Common System Ground NC NC 21 Aux12 UUT Common System Ground NC NC 20 Aux13 UUT Common System Ground NC NC 19 Aux14 UUT Common System Ground NC NC 18 Aux15 UUT Common System Ground NC NC 17 Aux16 UUT Common System Ground NC NC 16 Aux17 UUT Common System Ground NC NC 15 Aux18 UUT Common System Ground NC NC 14 Aux19 UUT Common System Ground NC NC 13 Aux20 UUT Common System Ground NC NC 12 Aux21 UUT Common System Ground NC NC 11 Aux22 UUT Common System Ground NC NC 10 Aux23 UUT Common System Ground NC NC 9 Aux24 UUT Common System Ground NC NC 8 Aux25 UUT Common System Ground NC NC 7 Aux26 UUT Common System Ground NC NC 6 Aux27 UUT Common System Ground NC NC 5 Aux28 UUT Common System Ground NC NC 4 Aux29 UUT Common System Ground NC NC 3 Aux30 UUT Common System Ground NC NC 2 Aux31 UUT Common System Ground NC NC 1 Aux32 UUT Common System Ground NC NC 6198 6218 Switch Load Unit User Manual 6 6 25 6 Using the Pin Matrix Cards Figure 6 17 2 Pinouts Rear Aux Access for E8783A
95. Unit User Manual Using Load Cards and Loads 5 Using the Agilent E6178B 8 Channel Load Card The Agilent E6178B 8 channel heavy duty load card with current sensing is intended to be used with high power loads mounted outside the Switch Load Unit Figure 5 39 shows a block diagram of the Agilent E6178B Figure 5 40 shows the layout of the E6178B card The card occupies two slots in the Switch Load Unit Card Location Recommendations e The card type is 044 Load Card Type and Configuration ID Power supply connections are made directly from the external power supplies to the load card not through the Agilent E6198B Switch Load Unit Power Supply Buses Each channel is capable of up to 30 Amps continuous carry into a resistive load Selecting a Power Supply Configuration CAUTION It is possible to close more than one channel at a time The power supply connections to the load card and individual channels are rated for 30 amps maximum continuous Do not exceed these specifications 6198 6218 Switch Load Unit User Manual 5 55 5 Using Load Cards and Loads Figure 5 39 Agilent E6178B 8 Channel Heavy Duty Load Card Block Diagram Load Relays J11 Backplane Interface Externally Mounted Loads ISense sense 750 Current Sense Address j Relay Timer Decode Logic CHI poi lt w lt CH2 aN LEM Current Transducer 231 Load 1 lt lt 4 5
96. Vbatt Some tests require one load such as a pure resistance for part of the test and a second load such as a real inductive load for another part of the same test Figure 5 55 shows a block diagram of the N9377A Figure 5 56 shows the load card layout Other features include The card is one slot wide Card Location Recommendations The card type is 07 Load Card Type and Configuration ID Each channel is capable of up to 7 5 amp continuous carry into a resistive load 15 amp peak The factory default configuration is explained in Selecting a Power Supply Configuration The factory default is to load a 0 050 0 1 Isense resistor in each channel Selecting a Current Sense Resistor Value The flyback protection is connected from both the normally open NO and normally closed NC power switch connections Selecting and Loading Flyback Protection Loads are mounted externally and interface to the card using two load connectors J1 and J2 Connecting Loads CAUTION It is possible to close more than one channel at a time The power supply connections to the load card and individual channels are rated for 7 5 amps maximum continuous Do not exceed these specifications E6198B E6218A Switch Load Unit User Manual 5 83 5 Using Load Cards and Loads Figure 5 55 Agilent N9377A 16 Channel Dual Load Load Card Block Diagram Mother Board Interface 1800 Configuration Connector UUT Load Ex
97. and CN1 J1 Connectors 5 102 Figure 5 69 Mezzanine Card Pinouts for N9378A 24 Channel Load Card 5 103 Figure 5 70 Agilent N9378A UUT Connector 5 104 Figure 5 71 Agilent N9379A 48 Channel High Density Load Card Block Diagram 5 106 Figure 5 72 Agilent N9379A Layout 5 108 Figure 5 73 Load Circuit Details 5 109 Figure 5 74 Agilent N9379A Mezzanine Card 5 110 6 Using the Pin Matrix Cards Figure 6 1 Pin Matrix Cards Conceptual Overview 6 2 Figure 6 2 Agilent E8792A Detailed Block Diagram 6 5 Figure 6 3 Agilent E8793A Detailed Block Diagram 6 6 Figure 6 4 Column Disconnect and Protection Bypass Relays Figure 6 5 J1 Pinouts Instrument and Abus Access 6 10 Figure 6 6 J1 Example Instrument Connections 6 11 Figure 6 7 Instrument BNC Cables 6 12 Figure 6 8 J2 Pinouts Rear Aux Access 6 13 E6198B E6218A Switch Load Unit User Manual 6 8 xiii Figure 6 9 P2 Pinouts Row Aux and UUT Common Main Access 6 14 Figure 6 10 Installed 32 Pin Matrix Cards 6 15 Figure 6 11 Pin Matrix Cards Conceptual Overview 6 16 Figure 6 12 Agilent E8782A Detailed Block Diagram 6 19 Figure 6 13 Agilent E8783A Detailed Block Diagram 6 20 Figure 6 14 Column Disconnect and Bypass Protection Relays 6 22 Figure 6 15 J1 Pinouts Instrument and Abus Access 6 23 Figure 6 16 J2 Pinouts Rear Aux Access for E8782A 6 25 Figure 6 17 J2 Pinouts Rear Aux Access for E8783A 6 26 Figure 6 18 P2 Pinouts Row Aux and U
98. and E8783A Specifications 15 Instrument Multiplexer Agilent E8782A Only 15 General Specifications Agilent E8782A and E8783A 15 Relay Characteristics Agilent E8782A and E8783A 16 Relay Life 16 End of Life Detection 16 Replacement Strategy 17 B Register Definitions Address Space 2 Base Address B 3 Switch Load Unit Register Definitions 4 Card Type R Base 0 Card Configuration R Base 1 5 Status Register Base 2 5 Fixture ID R Base 3 Digital Input R 4 p DAC1 Output MSB W 8 p viii E6198B E6218A Switch Load Unit User Manual Output LSB W Base 9 p DAC Scaling B 7 Control Register W Base A B7 Open Collector Output W Base B Digital Output W Base C DAC2 Output MSB W Base D pg DAC2 Output LSB W Base E pg Load Card Register Definitions 10 Agilent E6175A 8 Channel High Current Load Card B 11 Agilent E6176A 16 Channel High Current Load Card B 15 Agilent E6177A 24 Channel Medium Current Load B 19 Agilent U7177A 24 Channel Medium Current Load Card With Current Sense 23 Agilent U7178A 8 Channel 40 A Load B 28 Agilent U7179A 16 Channel 15 Load B 29 Agilent E6178B 8 Channel 30 Amp Load Card Register Definitions 32 Agilent N9377A 16 Channel Dual Load Load Card B 34 Agilent N9378A 24 Channel Low Resistance Load Card B 40 Agilent N9379A 48 Channel High Den
99. back zener diodes are recommended for flyback voltage protection Protection Devices Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RTx or RTy 2 required per load 1 at NC and 1 at NO provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card The card was tested using a General Electric GE MOV II MA series MOV 5 30 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 21 Typical Agilent E6176A Load Card Flyback Protection Circuit NC i High Side 50mQ Driver Lo NN oo oo gt gt NO mui 16V RTx NC 50mo L R DK Internal NO nternal Load Protection Ry Typical small MOV 8mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000msS 0 90 Joules watt seconds Transient peak current 8 20mS 100 Amperes Varistor voltage 1 0mA DC 300 Vdc Max Maximum Clamping Voltage 8 20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current
100. card Bits 7 0 Purpose Card Type Setting 01 Read Only Power On Reset State 01 Card Configuration R Base 1 This register reads back the Card Configuration The Card Configuration is determined by the user to distinguish different load configurations of the same load card Card Type Bits 7 0 Purpose Card Configuration Setting state Read Only Undefined bits readback as all 1s Status R Base 2 This register reads back the card s status Currently the status is defined as the state of the relay timer The relay timer has two timers wire OR d together One timer is designed for the slower armature relays gt 16 ms and the second designed for the faster reed relays 27500 us The timers restart whenever the registers controlling the respective relays are written to or the card is reset The card remains in the busy state until both timers have timed out Bit 7 1 0 Purpose Undefined BUSY Setting all 1s state Read Only E6198B E6218A Switch Load Unit User Manual Register Definitions Undefined bits readback as all 1s e BUSY 0 Busy 1 Ready Current Sense Select W Base 3 This register controls the current sense relays of the card Since only one current sense channel at a time per slot is allowed these channel selects are encoded This allows for either none or one current sense relay to be selected Writing to this re
101. current sense accuracy with standard 0 05W sense resistor Maximum Current Consumption 0 25 O maximum Exclusive of load with standard 0 05 O sense resistor and 10 A slo blo fuse installed 5 for load currents lt 1 10 8 msec typical 16 10 msec maximum 30 cps maximum 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS 7 5 A maximum non switching continuous 15 A maximum non switching 100 msec lt 2 duty cycle 150 Watts maximum resistive load 60 V maximum 40 Watts maximum total per card 1 mA 1V 0 1 maximum 0 4 AatbV 0 3Aat 12V 6198 E6218A Switch Load Unit User Manual A 3 A Switch Load Unit And Card Specifications Agilent E6176A 16 Channel High Current Load Card Specifications Parameter Specification Path resistance from power bus to load card connect Load path relay operate release time Peak voltage to Earth Load carry switching current Load carry peak current Load switching power Load switching voltage Minimum permissible load Basic current sense accuracy with standard 0 050 sense resistor Maximum Current Consumption 0 4 maximum Exclusive of load with standard 0 05 sense resistor and 10 A slo blo fuse installed 5 2 for load currents lt 10 8 msec typical 16 10 msec maximum 30 cps max 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS 7 5 A maxi
102. fixture ID pins allow the user to configure a unique ID for each mass interconnect fixture and read it back Address 0 of the backplane is used for the fixture ID and to read back the status of reset and busy state of the backplane Digital In Digital Out eight bits each TTL level Open Drain Outputs eight bits each Four pairs of current sense busses correspond to the current sense pairs from slots 1 5 6 10 11 15 and 16 21 These busses may be connected together to form a single bus or split into independent current sense busses using jumpers on SLU backplane J2 connector Integrated or switches S3A S3F on breakout board Standalone Factory default connects all sense busses to a single bus Find more information on when should you split the busses and how in Chapter 3 Four remote power bus sense pins remotely sense the power busses at the UUT Remote or local sensing for power bus PB1 PB4 can be set using jumpers on SLU backplane J3 connector S1A S1D on breakout board Standalone Factory default is remote sense DAC 1 and DAC 2 outputs J201 J221 are the slot connectors for Pin Matrix Card or Load Card slots 1 21 respectively The top half of each slot connector is used to provide slot power address data and control lines The bottom half of each connector is used to connect the power busses to the Load Cards 6198 6218 Switch Load Unit User Manual 3 15 3 3 16 Switch Load Unit and Plug In Cards
103. ground For example the channel could be connected to 12 volts on one side and 5 volts on the other E6198B E6218A Switch Load Unit User Manual 5 27 5 Using Load Cards and Loads The factory default is to provide two jumper combs one that ties all the pins on J4 J7 NO together and one that ties all the pins on J8 J11 NC together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J4 Jll can be easily cut to provide bus or pin isolation between the various input power bus connections Selecting a Current Sense Resistor Value The card comes factory loaded with a three watt 0 050 0 1 sense resistor already installed This is the lowest value sense resistor that can be installed safely If lower value currents are being measured requiring a larger resistance value to make the sense voltage readable then replace the sense resistor with a four wire resistor of higher value Selecting a Load Fuse The load fuses used are IEC 5x20 millimeter 5 amp slow blow These fuses may be replaced by fuses with a higher value but not to exceed 8 amps CAUTION 207 oe fuse rating must not exceed an value of 1 The figure is an industry standard term For example if a fuse with a rating of Pre 100 experiences a current surge of 10A it can maintain that current for 1 second before its capacity is exceeded 10A 10A 1 Second 100 Selecting and Loading Flyback Protec
104. in a manner not specified by Agilent Environmental Conditions CAUTION The Automotive Electronics Functional Test System is designed for indoor use only Table 2 1 shows general environmental requirements Table 2 1 Environment Requirements Environment Conditions Requirements Maximum Altitude 2000 meters Temperature Operation 5 C to 40 Maximum Relative Humidity The test system is designed to operate in the range from 5 to 80 relative humidity non condensing This product is designed for use in Installation Category II and Pollution Degree 2 per IEC 61010 1 Before Applying Power Verify that the product is set to match the available line voltage and all safety precautions are taken Note the external markings of the instruments described in Safety Symbols and Regulatory Markings 6198 E6218A Switch Load Unit User Manual Safety and Regulatory Information 2 Ground the System To minimize shock hazard the instrument chassis and cover must be connected to an electrical protective earth ground The instrument must be connected to the ac power mains through a grounded power cable with the ground wire firmly connected to an electrical ground safety ground at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Fuses Use only fuses with
105. license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in FAR 52 227 19 1 2 June 1987 U S Govern ment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Safety Notices CAUTION A CAUTION notice denotes a haz ard It calls attention to an operat ing procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met Contents 1 Legal Information Legal Information 1 2 Warranty 1 2 Technology Licenses 1 2 Restricted Rights Legend 1 2 Service and Support 1 3 Agilent on the Web 1 3 Agilent By Phone 1 3 2 Safety and Regulatory Information Declaration of Conformity 2 2 Safety Information 2 3 Safety Summary 2 3 Safety Notice 2 3 General Safety Information 2 3 Environmental Conditions 2 4 Before Applying Power 2 4 Ground the System 2 5 Fuse
106. load 60 V maximum 10 mA 5 V 0 1 maximum 0 2 30mA 0 2 100mA 500 kHz typical 40 A uS typical 0 5AatbV 1Aat 12V A 10 E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications A Agilent N9378A 24 Channel Low Resistance Load Card Specifications Parameter Specification Switch topology 24 channels with 4 loads per channel with common on board loads Path resistance channel to common 0 130 maximum Exclusive of load Path resistance from power bus to load card 0 5 maximum connect Exclusive of load Load path relay operate release time 4 4 msec max 10 cps maximum Peak voltage to Earth 60 V continuous 500 V maximum transient non switching decays to lt 60V in 200mS Load carry current 2 A maximum Load switching current maximum Power dissipation individual load mounted on load 2 Watt maximum each load card Average power for loads mounted on load card 20 Watts maximum total per card Relay switching voltage 30 V DC maximum Minimum permissible load 10 uA 10 mV DC Maximum Current Consumption 0 3 5 1 4Aat 12V 6198 E6218A Switch Load Unit User Manual A 11 A Switch Load Unit And Card Specifications Agilent N9379A 48 Channel High Density Load Card Specifications Parameter Specification Switch topology Path resistance channel to common Path resistance from power bus to load card connect Load path relay operate r
107. no channel is selected Bit 7 6 5 4 3 2 1 0 Purpose K64 K62 K60 K58 K56 K54 K52 K50 CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 Setting State State State State State State State State Power Select 1 8 W Base 4h The register uses positive logic 1 Relay Close 0 Relay Open E6198B E6218A Switch Load Unit User Manual B 31 B Register Definitions At reset no channel is selected Bit 7 6 5 4 3 2 1 0 Purpose K47 K45 K43 K41 K39 K37 K35 K33 CH8 CH7 CH6 CH5 CH4 CH2 1 Setting State State State State State State State State Load Select 9 16 W Base 4h The register uses positive logic 1 Relay Close 0 Relay Open At reset no channel is selected Bit 7 6 5 4 3 2 1 0 Purpose K63 K61 K59 K57 K55 K53 K51 K49 CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 Setting State State State State State State State State Agilent E6178B 8 Channel 30 Amp Load Card Register Definitions The Agilent E6178B following Features Fuse protected at 30A slow blow e 81loads with individual current sensing Flyback protection can be added for each load 30 Amp continuous current on one channel at a time See Using the Agilent N9377A 16 Channel Dual Load Load Card for more information Card Type R Base 00
108. pins on J802 J807 together and one that ties all the pins on J808 J813 together The NO pins are also jumpered to power bus 2 and the NC pins are jumpered to power bus 1 You can easily cut the combs for J802 J807 and J808 J813 to provide bus or pin isolation between the various input power bus connections Using the Power Switches as General Purpose Relays As with the E6177A and N9379A load cards the N9378A 24 channel load card lets you use the load switching relay as a general purpose switching relay The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you for example switch in an external power supply while bypassing the power bus of the SLU Figure 5 67 shows details of the load configuration circuit Figure 5 67 Load circuit details Node names Loadx y where y 1 4 Node name Pwrx Node name NCx Node name Chanx z Node name NOx Node name Pwrx Node names Comx y where y 1 4 Phantom switch for switchpath editor bus load x Channel number E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Connecting Loads Loads are mounted on the Agilent N9378A s mezzanine cards Figure 5 68 Up to four loads per channel can fit on each mezzanine card The mezzanine cards plug into the 1 3 upper and 1 3 lower positions on the load card The channel number
109. slots 6 10 Isense lines 3 connect to Switch Load Unit slots 11 15 Isense lines 4 connect to Switch Load Unit slots 16 21 Two or more sets of the above lines can be bussed together select from toggle switches Refer to page 12 for details Power Bus Sense 1 4 Gnd The remote sense lines for the power supplies connected to power buses 1 4 Chassis ground of the Switch Load Unit 6198 E6218A Switch Load Unit User Manual 3 19 J Switch Load Unit and Plug In Cards J1 Pinout Table 3 7 shows pinout of J1 Frame Select amp Spare Supply SS Frame 0 is selected if FSO and FRAME are both are connected Frame 1 is selected if FS1 and FRAME are both are connected and so on Default setting is frame 0 zero More detail about SS Spare Supply please refer Connecting an Additional Spare Power Supply Table 3 7 Switch Load Unit J1 Pinout FS1 FS3 FS5 FS7 NC GND SS FSO FS2 FS4 FS6 FRAME GND SS J2 Pinout Table 3 8 show pinouts of JZ ISENSE Bussed Split Default setting for J2 is ISENSE Bussed Table 3 8 Switch Load Unit J2 Pinout IS 2 1 2 1 3 1 3 1 4 1 4 NC IS 1 IS 1 IS 2 IS 2 IS 3 1 3 NC J3 Pinout Table 3 9 shows pinouts of Power Bus Sense Local Remote Local 1 is selected if LOC S1 is connected with PB1 Remote 1 is selected if REM S1 is connected with PB1 and so on D
110. the component location of the current sense section of the first two channels on the load card The location of the components listed in Table 5 2 are silk screened on the load card s printed circuit board Installing a current transducer involves both elements of a channel pair For example if the LEM module were to be installed across channels 1 2 1 Remove the 0 050 current sense resistor R1 CAUTION The current sense resistor must be removed from the Agilent E6175A PC board 2 Install the LEM module 3 Install the measuring resistor R2 preferably a 100 0 1 resistor 4 Install the shorting jumper from R2 to ground TP41 to TP42 E6198B E6218A Switch Load Unit User Manual 5 11 5 Using Load Cards and Loads 5 Install two bypass capacitors C41 and C42 both 0 01 uF 6 Install the appropriate primary coil range jumpers See Figure 5 7 Use a wire gauge appropriate for the current through the load Figure 5 6 Component Location for Installing LEM Current Transducer Module REMOVED Isense Resistor LEM Primary Coil Range Jumpers NS 5 1 LEM Cnfg I LEM Module 0 LEM Module 6 10 F1 Isens Resistor LEM measuring P1 resistor shorted jumper to ground LEM Bypass EBI RT4 12 q J3 NO Capacitors LEM Cnfg 99000 ogg J5
111. the four power busses on J9 via jumper wires The terminal block jumpering allows convenient pull up or pull down of the various inputs It also allows for terminating a UUT load at a different voltage than ground The factory default is to provide two jumper combs one that ties all the pins on J3 J8 together and one that ties all the pins on J10 J15 together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J3 J8 and J10 J15 can be easily cut to provide bus or pin isolation between the various input power bus connections Using the Power Switches as General Purpose Relays The E6177A has a special feature that is not available on the other E617x load cards It has both the high and low side of the load brought out to the front panel This allows the load switching relay to be alternatively used as a general purpose switching relay For instance to use channel 1 of the load card as a general purpose switching relay jumper across the LOAD 1 pins on the load card CAUTION When using a channel of the Agilent E6177A as a GP switch make sure that neither the NO nor NC connectors for that channel are jumpered to the load card power bus terminals on J9 E6198B E6218A Switch Load Unit User Manual 5 41 5 5 42 Using Load Cards and Loads Figure 5 29 Using the 24 Channel Load Card Switches as GP Relays Configured for Normal Loading UUT External Loads Load Mount P2
112. the required rated current voltage and specified type normal blow time delay Do not use repaired fuses or short circuited fuse holders To do so could cause a shock or fire hazard For AC inlet fuse use only 5A 250 Vac fuse with Time Lag and Low Breaking capacity For other fuse ratings refer Table 3 11 WARNING In order to avoid electrical hazards all system internal fuses must be replaced by trained and qualified personnel Operator Safety Information WARNING Module connectors and Test Signal cables connected to them cannot be operator accessible Cables and connectors are considered inaccessible if a tool e g screwdriver wrench socket etc or a key equipment in a locked cabinet is required to gain access to a conductive surface connected to any cable conductor High Low or Guard WARNING Assure the equipment under test has adequate insulation between the cable connections and any operator accessible parts doors covers panels shields cases cabinets etc Verify there are multiple and sufficient protective means rated for the voltages you are applying to assure the operator will NOT come into contact with any energized conductor even if one of the protective means fails to work as intended For 6198 E6218A Switch Load Unit User Manual 2 5 2 Safety and Regulatory Information example the inner side of a case cabinet door cover or panel can be covered with an insulating m
113. transducer module has a current gain of 2000 1 primary to secondary i e for a 2 A primary current the secondary current is 1 mA The secondary of the LEM current transducer is connected across a precision 100 Q resistor see Figure 5 44 The primary current is calculated by making a voltage measurement across this precision resistor and is E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 determined by the equation Lg e 20 Isense The current monitor specification is with respect to the channel primary current which is being measured Gain Error 1 0 maximum over the temperature range Offset Error 0 2 A typical over the temperature range 0 6 A maximum over the temperature range The error due to the offset component can be reduced by measuring the zero current offset voltage channel relay open after the test system has warmed up and using this offset to correct for all subsequent measurements This should be done for each channel individually Using this technique the errors due to offset may be reduced to Offset Error 0 1 A over the temperature range Selecting and loading flyback protection Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant but provides backup protection in case a defective UUT is tested The sys
114. with Current Sense Install any U7177A cards next Agilent N9378A 24 Channel Load Cards Install any N9378A cards next To allow for future expansion leave an open slot after the last N9378A card Agilent E6176A 16 Channel Load Cards Install any Agilent E6176A cards next Agilent N9377A 16 Channel Load Cards Install any Agilent N9377A cards next To allow for future expansion leave an open slot after the last N9377A card Agilent E6178B 8 Channel Heavy Duty Load Cards Agilent E6178B 8 channel Heavy Duty cards require two slots each These cards are installed in even slot locations only Install E6178B cards starting with the first available even slot following the 16 channel cards E6198B E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Agilent E6175A 8 Channel Load Cards Agilent E6175A 8 channel cards require two slots each These cards are installed in even slot locations only Install E6175A cards in first available even slot following the E6178B 8 Channel Heavy Duty cards CAUTION Please close the gap for rear side of the connector if using own fabricated cable with connector For example Figure 4 1 shows the standard locations for matrix and load cards for a system which contains three matrix cards a custom card two 24 channel four 16 channel one 8 channel and one 8 channel heavy duty load card If using this configuration be sure to leave the slots open between the cards as sho
115. without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or perfor mance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial
116. 0 Write AuXsg AuXss5 AUXs4 53 52 AUXs4 AUXso AUX49 Auxilary Relay 57 64 W Base 0 1349 Bits 7 6 5 4 3 2 1 0 Write AuXg4 AuXgs AUXg2 AUXe4 AUXsg AUXsg AUXs57 ABUS1 to Row Row Relay 1 8 W Base En 1449 Bits 7 6 5 4 3 2 1 0 Write Rowg Row Rowg Rows Row Row3 Row Row Row Relay 9 16 W Base 1549 Bits 7 6 5 4 3 2 1 0 Write Row4s Row44 Row43 Row42 E6198B E6218A Switch Load Unit User Manual B 83 B Register Definitions Row Relay 17 24 W Base 10 1649 Bits 7 6 5 4 3 2 1 0 Write Row 4 Row23 Row29 Row 48 Row47 Row Relay 25 32 W Base 11 1749 Bits 7 6 5 4 3 2 1 0 Fera ena fona Re Row Relay 33 40 W Base 12n 1849 Bits 7 6 5 4 3 2 1 0 Write Row4g Row39 Row35 Row34 Row33 Row Relay 41 48 W Base 13 1949 Bits 7 6 5 4 3 2 1 0 Write Row g Row 7 RoW 45 Row44 Row45 Row 2 Row Row Relay 49 56 W Base 14 2049 Bits 7 6 5 4 3 2 1 0 Write ROWsg RoWs5 Rows4 Rows3 52 Rows RoW 4g Row Relay 57 64 W Base 15h 2149 Bits 7 6 5 4 3 2 1 0 Write Rowg4 Rowgs Rowg2 Rowe Rowsg Rows B 84 E6198B E
117. 0 Measurement 64 Measurement 64 Measurement Channels Channels Channels To From UUT To From UUT To From UUT Channels 24x5 Instrument matrix J Features Agilent E8783 Agilent E8783 Pin Matrix Pin Matrix Agilent E8782 Card n Pin Matrix Card The AUX channels are not shown in Figure 6 11 Refer to Figure 6 12 and Figure 6 13 for detailed schematics of the pin matrix cards Key features of the cards include 24x 5 high speed reed relay Instrument Matrix and 40 x 4 high speed reed relay Measurement Matrix Agilent E8782A 64 x 4 high speed reed relay Measurement Matrix Agilent E8783A An integrated relay timer E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Automatic disconnecting of column relays for minimal loading of the Analog Bus Asingle control bit can open all relays OAR Auxiliary or direct row access relays on each row Independently switchable series resistance protection on each column Detailed Block Diagram Descriptions Figure 6 12 is a detailed block diagram of the Agilent E8782A Pin Matrix Card and Figure 6 13 is a detailed block diagram of the Agilent E8783A Pin Matrix Card Differences Between the Cards The Agilent E8782A contains a 24 x 5 Instrument Matrix and 40 x 4 Measurement Matrix The Instrument Matrix is used to connect measurement or source instruments to the Analog Bus Also notice in Figure 6 12 the DAC1 or DAC2 inputs to the Instr
118. 00000 LOZM 908M lOo0000000000000000000 lOoO000000000000000000 4edddyp ei pied 729 Z pje 9 euiuezze w 4edddyg p1e 2 euiuezze w ON 208 oo oo 808 608 018 mp ON OTH ONDSST NOTH SE SFRENRS coer eoer vo8r 908 908 208 r4 98E EL Using Load Cards and Loads 5 Load Circuit Details Figure 5 73 shows the details of the load configuration circuit Note that each power node is shared by two channels See Connecting Loads for details on connecting power to loads on the mezzanine cards Figure 5 73 Load Circuit Details Comx lt cnan uq CA oN Node Name Node Name User installed jumper Loadx y where y 1 or 2 Comx y where y 1 or 2 pee Node name NOx x 1 bol Pwrx xt1 SS Node Names Node Name mm REEL ___ Loadx 1 y where y 1 or 2 Comx 1 y where y 1 or 2 M Node name NCx x 1 Chanx 1 T e lt User installed jumper 1 Phantom switch for switchpath editor busload x channel number Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J808 J813 and each NC
119. 0000000100000000 00 9500000 20000000 20000000100000000 9660000 00000000 00000000100000000 00 568599099999909900090159000090 2500000 00000000 00000000100000000 00 5600000100000000100000000100000000 5600000100000000100000000100000000 00 2600000120000000100000000100000000 5000000 20000000 06000000100000000 00 2500000 20000000 20000000100000000 00 999995530099999560090999956600990 00 2620000 00000000 0000000 20000000 999999 58999999 966999999666 999 9 C 00000000000000000000000000000000 Figure 7 6 shows the E8794 layout Figure 7 7 shows a more detailed view for locating components Figure 7 9 shows a schematic for the status and control interface Figure 7 6 E8794A Layout schemat Using the Custom Card E8794A Components and Schematics 7 00000000000000000000000000000000 00000000000000000000000000000000 000000000000000000000000900000000 J1 E6198B E6218A Switch Load Unit User Manual 00000 J52 00000000000000000000000000000000 J2 00000000000000000000000000000000 00000000000000000000000 O z 7 8 Figure 7 7 E8794A Component Locator S201 8765435321 498 Be B 00000000 82 eee
120. 1 closed Writing to this register starts the relay timer Bit 7 Purpose K32 Setting state 6 5 K30 K28 CH 16 CH 15 CH 14 state stat K26 CH 13 state K24 CH 12 state K22 CH 11 state K20 CH 10 state K18 CH 9 state Write Only B 20 E6198B E6218A Switch Load Unit User Manual Register Definitions State 1 closed 0 open Power On Reset State 0 Load Select 17 24 W Base 5 This register controls the Load Select switch armature relays for channels 17 24 The register uses positive logic 1 closed Writing to this register starts the relay timer Bit Purpose K48 K46 K44 K42 K40 K38 K36 K34 7 6 5 4 3 2 1 0 CH24 CH23 CH22 CH21 CH20 CH 19 CH 18 CH 17 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W Base 6 This register controls the Pull Up Down Power Select armature relays for channels 1 8 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K15 K13 K11 K9 K7 K5 K3 K1 CH 8 CH7 CH6 CH5 CH4 CH3 CH2 CH 1
121. 1 Abus Access 2 Abus Connector 96 Pin DIN C Rear Aux Access Using the Pin Matrix Cards 6 16 x 5 Instrument Matrix 96 Pin DIN C Backplane Access To Switch Load Unit P1 96 Pin DIN C P2 Row Aux amp UUT Common To UUT Inst1 i i DAC2 Inst2 I 1 Di DACCOM Inst3 1 1 rop Inst4 I I E aM IQ Inst5 i E I I zd Inst6 5 i I 1 Id Inst7 7 1 1 i Inst8 D Inst9 Upon 1 Inst10 i i 1 5111 m d gm rg Decoding and Driver g an Inst12 Ti Circuits i Inst13 a 7 Lad Inst14 o m Inst15 i ER gh cH Hy gh i Inst16 m ode i i EIE EE STR Phy 1 1 J3 1 Abus2 Abus4 Abus1 Abus3 i 1 lt Disconnect Relays Bypass Relays 1 ep epe etiem T Aux X Rowi Aux2 i i Aux2 i i Row2 Aux3 s Aux3 i i Row3 Aux4 z Aux4 ___ Row4 i i J2 i S ue cw i
122. 10 Figure 4 10 PB Sense Remote Local and Frame Select Interface Integrated SLU Configuring the Current Sense Jumpers The Switch Load Unit is shipped from the factory with the current sense jumpers J2 installed in the BUSSED position forming one continuous current sense bus along the Switch Load Unit backplane These three jumpers have been included so that if necessary the existing single current sense bus can be split up into as many as four independent current sense busses by changing the jumper location to SPLIT Each independent current sense bus provides one reading so up to four simultaneous current sense readings can be made at a time The hardware allows each card to perform current sense measurements on only one channel at a time However it is possible to command two cards sharing a common current sense bus to attempt simultaneous current sense readings This can lead to a power bus to power bus short causing confused and incorrect readings E6198B E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Figure 4 11 shows the ISense Bussed Split interface for Standalone SLU Toggle the switch to choose either Bussed or Split mode Figure 4 11 ISense Bussed Split Interface Standalone SLU For system integrated SLU jumpers are used to select between Bussed Split see Figure 4 12 Figure 4 12 ISense Bussed Split Interface Integrated SLU NOTE Ensure Load Cards that will be accessed sim
123. 11 K19 K61 K62 Channel 9 Isense Resistor e i ds E E F11 koa PwrSw13 Chan13 ca Ke Coq F12 K66 PwrSw14 F13 Chan14 K67 K68 27 PwSwi5 C3 ta 14 Chan15 ie 15 K70 K30 PwrSw16 Chan16 K31 E16 K32 71 om F16 K72 Electro Static Discharge ESD Non Component Side Protection 6198 6218 Switch Load Unit User Manual C 3 C Repair Information Agilent E6176A 16 Channel High Current Card See Figure 5 17 to locate the relays and fuses for the E6176A The component locator diagram Figure C 1 shows the solder side or back of the Agilent E3750 66504 through hole PC board This load card uses the 0490 1517 Form C relay Two Agilent 0490 1839 relays switched in parallel are used to connect the Isense and Isense signals Figure C 2 Agilent E6176A 16 Channel Load Card Component Locator Rear View 0490 1517 5000 10 0490 1839 4 3 2 1 5000 10 Note 2500 loaded De energized Position gt gt Channel 1 Flyback Protection M See 1 n Power Bus S Channel 1 Isense Resistor S Load 1 Card _ Configuration lt Power Configuration ID lt x i EH CHT m PwrSw1 F1 1 E46 4 Isense CH
124. 13 NC Aux13 NC UUT Common 14 Row 14 NC Aux14 NC UUT Common 15 Row 15 NC Aux15 NC UUT Common 16 Row 16 NC Aux16 NC UUT Common 17 Row 17 NC Aux17 NC UUT Common 18 Row 18 NC Aux18 NC UUT Common 19 Row 19 NC Aux19 NC UUT Common 20 Row 20 NC Aux20 NC UUT Common 21 Row 21 NC Aux21 NC UUT Common 22 Row 22 NC Aux22 NC UUT Common 23 Row 23 NC Aux23 NC UUT Common 24 Row 24 NC Aux24 NC UUT Common 25 Row 25 NC Aux25 NC UUT Common 1 26 Row 26 Aux26 NC UUT Common 27 Row 27 NC Aux27 NC UUT Common 1 28 Row 28 NC Aux28 NC UUT Common 29 Row 29 NC Aux29 NC UUT Common 30 Row 30 NC Aux30 NC UUT Common 31 Row 31 NC Aux31 NC UUT Common 32 Row 32 NC Aux32 NC UUT Common e d cb a 6198 E6218A Switch Load Unit User Manual 6 27 6 Using the Pin Matrix Cards Figure 6 19 P2 Pinouts Row Aux and UUT Common Main Access for E8783A Row e d b a 1 9 1 Row 33 Aux Aux33 UUT Common 2 Row 2 Row 34 Aux2 Aux34 UUT Common 3 Row 3 Row 35 Aux3 Aux35 UUT Common 4 Row 4 Row 36 Aux4 Aux36 UUT Common 5 Row 5 Row 37 Aux5 Aux37 UUT Common 6 Row 6 Row 38 Aux6 Aux38 UUT Common 7 Row 7 Row 39 Aux Aux39 UUT Common 8 Row 8 Row 40 Aux8 Aux40 UUT Common 1 1 9 Row 9 Row 41 Aux9 Aux41 UUT Common 10 Row 10 Row42 Aux10 Aux42 UUT Common 11 Row 11 Row43 11 Aux43 UUT Common 12 Row 12 Row44
125. 218A Switch Load Unit User Manual NOTE Agilent TS 5000 E6198B Switch Load Unit User Manual 6 Using the Pin Matrix Cards Using the 32 Pin Matrix Cards 6 2 Using the 64 Pin Matrix Cards 6 16 This chapter describes how to configure and use the Agilent Pin Matrix Cards which slots into the Switch Load unit Register descriptions for these cards are located in Appendix B of this manual This chapter describes using the Agilent 8792A or 8782A as the Instrument Matrix In some systems the Agilent E6171B measurement Control Module may be used as the Instrument Matrix Refer to the Agilent E6171B User s Manuals for more information EE Agilent Technologies 6 1 6 Using the Pin Matrix Cards Using the 32 Pin Matrix Cards 6 2 Figure 6 1 16 Instrument Channels Conceptual Overview Both the Agilent E8792A and E8793A 32 Pin Matrix Modules contain a 32 x 4 Measurement Matrix for switching signals to and from the Analog Bus The Agilent E8792A also contains 16 x 5 Instrument Matrix that connects external measuring instruments to the Analog Bus Figure 6 1 is a simplified block diagram showing how the Agilent E8792A and E8793A are typically used together in a system As shown in Figure 6 1 if you need more UUT connections simply add more Agilent E8793A 32 Pin Matrix Cards to the bus Pin Matrix Cards Conceptual Overview 16 Measurement Channels 32 Measurement Channels 32 Measurement Channels To From UUT To From UUT To F
126. 3 J4 to the Agilent E1418 16 Channel DAC The DAC s top connector is cabled to J3 the DAC s bottom connector is cabled to J4 Pin Pin Pin Pin Signal Number Signal Number Signa Number Signal Number CH12LS 64 Gnd 63 CH16LS 64 Gnd 63 CH12LO 62 Gnd 61 CH16LO 62 Gnd 61 CH12HI 60 Gnd 59 CH16H 60 Gnd 59 CH12HS 58 Gnd 57 CH16 HS 58 Gnd 57 CH11LS 56 Gnd 55 CH15LS 56 Gnd 55 CH11LO 54 Gnd 53 CH15LO 54 Gnd 53 CH11 HI 52 Gnd 51 CH15H 52 Gnd 51 CH11 HS 50 Gnd 49 CH15 HS 50 Gnd 49 CH10LS 48 Gnd 47 CH14LS 48 Gnd 47 CH10LO 46 Gnd 45 CH14 LO 46 Gnd 45 CH10 HI 44 Gnd 43 CH14 H 44 Gnd 43 CH10 HS 42 Gnd 41 CH14 HS 42 Gnd 41 CH9 LS 40 Gnd 39 CH13 LS 40 Gnd 39 CH9 LO 38 Gnd 37 CH13 LO 38 Gnd 37 CH9 HI 36 Gnd 35 CH13H 36 Gnd 35 CH9 HS 34 Gnd 33 CH13 HS 34 Gnd 33 CH4 LS 32 Gnd 31 CH8 LS 32 Gnd 31 CH4 LO 30 Gnd 29 CH8 LO 30 Gnd 29 CH4 HI 28 Gnd 27 CH8 HI 28 Gnd 27 CH4 HS 26 Gnd 25 CH8 HS 26 Gnd 25 CH3LS 24 Gnd 23 CH7 LS 24 Gnd 23 CH3 LO 22 Gnd 21 CH7 LO 22 Gnd 21 CH3 HI 20 Gnd 19 CH7 HI 20 Gnd 19 CH3 HS 18 Gnd 17 CH7 HS 18 Gnd 17 CH2LS 16 Gnd 15 CH6 LS 16 Gnd 15 CH2 LO 14 Gnd 13 CH6 LO 14 Gnd 13 CH2 HI 12 Gnd 11 CH6 HI 12 Gnd 11 CH2 HS 10 Gnd 9 CH6 HS 10 Gnd 9 CH1LS 8 Gnd 7 CH5 LS 8 Gnd 7 CH1LO 6 Gnd 5 CH5 LO 6 Gnd 5 CH1 HI 4 Gnd 3 CH5 HI 4 Gnd 3 CH1 HS 2 Gnd 1 CH5 HS 2 Gnd 1 e Vo J3 J3 Breakouts J4 Note DAC channel break out is valid when using cable part numb
127. 3 K303 K403 K503 Row4 K104 K204 K304 K404 K504 Row5 K105 K205 K305 K405 K505 Row6 K106 K206 K306 K406 K506 Row7 K107 K207 K307 K407 K507 E6198B E6218A Switch Load Unit User Manual C 5 C Repair Information Table C 1 Measurement Matrix Relays continued Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row8 K108 K208 K308 K408 K508 Row9 K109 K209 K309 K409 K509 Row10 K110 K210 K310 K410 K510 Row11 K111 K211 K311 K411 K511 Row12 K112 K212 K312 K412 K512 Row13 K113 K213 K313 K413 K513 Row14 K114 K214 K314 K414 K514 Row15 K115 K215 K315 K415 K515 Row16 K116 K216 K316 K416 K516 Row17 K117 K217 K317 K417 K517 Row18 K118 K218 K318 K418 K518 Row19 K119 K219 K319 K419 K519 Row20 K120 K220 K320 K420 K520 Row21 K121 K221 K321 K421 K521 Row22 K122 K222 K322 K422 K522 Row23 K123 K223 K323 K423 K523 Row24 K124 K224 K324 K424 K524 Row25 K125 K225 K325 K425 K525 Row26 K126 K226 K326 K426 K526 Row27 K127 K227 K327 K427 K527 Row28 K128 K228 K328 K428 K528 Row29 K129 K229 K329 K429 K529 Row30 K130 K230 K330 K430 K530 Row31 K131 K231 K331 K431 K531 Row32 K132 K232 K332 K432 K532 C 6 6198 E6218A Switch Load Unit User Manual Table C 2 Instrument Matrix Relays Repair Information
128. 59 K459 K959 Row60 K160 K260 K360 K460 K960 Row61 K161 K261 K361 K461 K961 Row62 K162 K262 K362 K462 K962 Row63 K163 K263 K363 K463 K963 Row64 K164 K264 K364 K464 K964 Table C 7 Bypass and Disconnect Relays for E8782A and E8783A Abus1 Abus2 Abus3 Abus4 Bypass Relays K1 5 K7 Disconnect Relays K2 K4 K6 K8 C 12 E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual e Glossary Of Terms EE Agilent Technologies A Glossary Of Terms A 2 Adjustment An adjustment is an action performed in the field to modify an instrument response to some input It can usually be performed by the user on site Calibration A standardized maintenance procedure designed to ensure system accuracy In this manual it refers to removing those items that require calibration the DVM and the Frequency Counter and shipping them to an Agilent bench site for calibration Card Plug in devices that are installed into either the Switch Load Unit or a VXI mainframe Common Line This refers to the power bus side of a load on the 24 Channel Load Card A line is run back up to the UUT load side of the card and jumpering a channel s internal load terminals allows the user to utilize the load switch as a GP relay Current Sensing Determining the current through a fixed known value resistor using the four wire measur
129. 5A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C 10 1000mS refers to a standard pulse of 10mS rise and 1000mS to 50 decay of peak value T 8 20mS refers to a standard pulse of 8mS rise and 20mS to 50 decay of peak value E6198B E6218A Switch Load Unit User Manual 5 31 5 Using Load Cards and Loads Connecting Loads Loads are mounted externally and connected to the load card via wires or cables The loads are wired to connectors CN1 and CN2 which mate to the Agilent E6176A s J1 and J2 connectors respectively Figure 5 13 shows these connectors Figure 5 22 Agilent E6176A Connectors J1 J2 and Mating Connectors CN1 CN2 CN1 Mating Connector for J1 gt c c co L J 0000000000000000 gt es oo oo 00000000 0000 0000 oooo oooojoooojoooo 5 r 4 d m J co J c m ca co
130. 6 Component Location for Installing LEM Current Transducer Module 5 12 Figure 5 7 Wiring Options of LEM Model LA25 NP Primary for Various Current Ranges 5 13 Figure 5 8 8 Channel Load Card Detail Flyback Protection Circuit 5 15 Figure 5 9 Agilent E6175A Flyback Protection Polarity 5 15 Figure 5 10 Typical Agilent E6175A Load Card Flyback Protection Circuit 5 16 Figure 5 11 Agilent E6175A Load Examples 5 18 Figure 5 12 Bridge Configuration for Channels 7 and 8 8 Channel Load Card 5 19 Figure 5 13 Agilent E6175A Load Mounting Area CN1 J1 Connectors 5 20 Figure 5 14 Agilent E6175A Load Wiring Schematic and CN1 Pinouts 5 21 Figure 5 15 Agilent E6175A Current Sharing Example 5 22 Figure 5 16 Agilent E6175A 8 Channel High Current Load UUT Connections 5 24 Figure 5 17 Agilent E6176A 16 Channel High Current Load Card Block Diagram 5 26 Figure 5 18 Agilent E6176A 16 Channel Load Card Layout 5 27 Figure 5 19 16 Channel Load Card Flyback Device Polarity Orientation 5 29 Figure 5 20 16 Channel Load Card Flyback Circuit Detail 5 30 Figure 5 21 Typical Agilent E6176A Load Card Flyback Protection Circuit 5 31 Figure 5 22 Agilent E6176A Connectors J1 J2 and Mating Connectors CN1 CN2 5 32 Figure 5 23 Agilent E6176A Load Wiring Schematic and CN1 CN2 Pinouts 5 33 Figure 5 24 Agilent E6176A Current Sharing Example 5 34 Figure 5 25 Example Load Plate with Loads 5 36 Figure 5 26 Agilent E6176A CN2 Connector Pinouts 5 37
131. 6 5 4 3 2 1 0 Write Inst4g Inst45 Inst44 Insty3 Insty Inst Inst4g Instg Abus1 to Instrument Bus Instrument Relay 1 8 W Base 1C 2849 Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Inst4 Insta Inst Inst 6198 E6218A Switch Load Unit User Manual B 69 B Register Definitions Instrument Relay 9 16 W Base 1D 2949 Instrument Relay 1 8 W Base 1E 3049 Instrument Relay 9 16 W Base 3149 Instrument Relay 1 8 W Base 20 3249 Instrument Relay 9 16 W Base 21 3349 Instrument Relay 1 8 W Base 22 3449 B 70 Bits 7 6 5 4 3 2 1 0 Write Inst4g Inst45 Inst44 11593 15942 Inst Inst4g Inst Abus2 to Instrument Bus Bits 7 6 5 4 3 2 1 0 e rs Bits 7 6 5 4 3 2 1 0 Abus3 to Instrument Bus Bits 7 6 5 4 3 2 1 0 Bits 7 6 5 4 3 2 1 0 Write Inst4g 1595 Inst44 Insty3 Insty Inst Inst4g Inst Abus4 to Instrument Bus Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Inst4 Insts Inst Inst E6198B E6218A Switch Load Unit User Manual Instrument Relay 9 16 W Base 23 3549 Register Definitions B Bits 7 6 5 4 3 2 1 0 Write Instyg Inst45 Inst44
132. 6 5 4 3 2 1 0 Purpose K47 K45 K43 K41 K39 K37 K35 K33 24 CH23 CH 22 CH21 CH20 CH 19 CH 18 CH 17 Setting state state state state state state state state Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 B 22 E6198B E6218A Switch Load Unit User Manual Register Definitions B Agilent U7177A 24 Channel Medium Current Load Card With Current Sense The Agilent U7177A Load Card is designed for moderate current loads mounted outside the load card The card provides current sense pull up down selection Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent U7177A 24 Channel Load Card for more information Register definitions for the card are as follows Card Base This register reads back the Card Type 18h of the card Bit 7 0 Purpose Card Type Setting 18h Read Only Power On Reset State 18h Card Configuration R Base 1h This register reads back the Card Configuration The Card Configuration is determined by the user to distinguish different load configurations of the same load card Card Type Bit 7 0 Purpose Card Configuration Setting state Read Only Undefined bits readback as all 1s Status R Base 2h This register reads back the card s status Currently the status is defined as the stat
133. 6218A Switch Load Unit User Manual Register Definitions B ABUS2 to Row Row Relay 1 8 W Base 16 2240 7 6 5 4 3 2 1 0 Write Rowg Row Rowg Rows Row Row3 Row Row Row Relay 9 16 W Base 17h 2349 Bits 7 6 5 4 3 2 1 0 Write Row45 Row44 Row43 Row42 Row Relay 17 24 W 18 2449 Bits 7 6 5 4 3 2 1 0 Write Row 4 Row23 Row 29 Row Row47 Row Relay 25 32 W Base 194 2549 Bits 7 6 5 4 3 2 1 0 Write Rows Row39 Row g Row Row25 Row Relay 33 40 W Base 2649 Bits 7 6 5 4 3 2 1 0 Write Row39 Row3g Row37 ROW36 Row35 Row34 Row33 Row Relay 41 48 W Base 1B 2710 7 6 5 4 3 2 1 0 Write Row g Row 47 Row g RoW 45 Row44 Row45 Row42 Row44 6198 E6218A Switch Load Unit User Manual B 85 B Register Definitions Row Relay 49 56 W Base 1C 2849 Bits 7 6 5 4 3 2 1 0 Write 55 Rows4 Rows3 Rows2 Rows Row Relay 57 64 W Base 1D 2910 7 6 5 4 3 2 1 0 Write Rowgs Rowe Rowsg Rows7
134. 7 K8 Channel 5 N A 00101 K9 K10 Channel 6 N A 00110 K11 K12 Channel 7 N A 00111 K13 K14 Channel 8 N A 01000 K15 K16 No Channel N A 01001 01111 None Load Select W Base 4h The register uses positive logic 1 Relay Close 0 Relay Open At reset no channel is selected Bit 7 6 5 4 3 2 1 0 Purpose K28 K27 K26 K25 K24 K23 K22 K21 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Setting State State State State State State State State Agilent U7179A 16 Channel 15 A Load Card The Agilent U7179A Load Card is designed for high current loads mounted outside the load card The card provides current sense pull up down and flyback protection The card also provides Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent U7177A 24 Channel Load Card for more information Register definitions for the card are as follows Card Type 10 Base 0 Value 20 E6198B E6218A Switch Load Unit User Manual B 30 Register Definitions Card Configuration Base 1 The value is determined by the user by configuring connector J2 When unused a read of this register will be FFh Card J2 10 J2 9 J2 8 J2 7 J2 5 J2 4 J2 3 J2 2 Bit 7 6 5 4 3 2 1 0 Config Status Register R Base 2 Contains BUSY bit bit 0 which reflects the state of all relay timers BUSY returns 0 busy
135. 783A Specifications 15 EE Agilent Technologies id A Switch Load Unit And Card Specifications Agilent E6198B Switch Load Unit Specifications Parameter Specification Power Bus Resistance Power Bus Current Peak Power Bus Current Peak Power Bus Voltage Combined Power Bus Current all buses Switch Load Unit to Power Supply Cable Resistance per bus Switch Load Unit to Load Card Connection Resistance Average Load Power for all loads mounted in Switch Load Unit Maximum Current Consumption DAC Channels 0 02 maximum 30 A maximum continuous 40 A maximum 0 1 second duty cycle lt 10 60 V maximum 60 A maximum continuous 0 03 Q standard supplied Agilent cable with connectors included 0 03 maximum 250 Watts average 500 Watts maximum 30 A at5V 12 5 at 12 V 1Aat 12V Vout 16 V to 16 V lout 10 mA Resolution 14 bit Gain Error 3 typical Offset Error 20 mV typical A 2 E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications A Agilent E6175A 8 Channel High Current Load Card Specifications Parameter Specification Path resistance from power bus to load card connect Load path relay operate release time Peak voltage to Earth Load carry switching current Load carry peak current Load switching power Load switching voltage Average power for loads mounted on load card Minimum permissible load Basic
136. 8792A 32 Pin Matrix Card and Figure 6 3 is a detailed block diagram of the Agilent E8793A 32 Pin Matrix Card Differences Between the Cards The primary difference between the two cards is that the Agilent E8792A contains a 16 x 5 Instrument Matrix The Instrument Matrix is used to connect measurement or source instruments to the Analog Bus Also notice in Figure 6 2 the DACI or DAC2 inputs to the Instrument Matrix These lines come from the Switch Load Units DACs and can be switched into the Instrument Matrix The Agilent E8793A also contains two additional sets of Analog Bus access on connector J1 Other than these differences the two cards are electrically and functionally identical The following discussion applies to both cards Features Common to Both Cards The 32 Pin Matrix Modules contain a 32 x 4 matrix of relays additional relays to connect disconnect signals on the buses programmable registers to control the relays described in Appendix B and various other features All relays are of the high speed dry reed type for fast switching As shown in Figure 6 2 and Figure 6 3 the Measurement Matrix is arranged in 32 rows that can be connected to any of four columns on the common Analog Bus Closing a matrix relay connects a row to a column on the card The columns are connected to the Analog Bus which carries the signal between the UUT unit under test and instruments connected to the Analog Bus through the Agilent E8792A This
137. 8B E6218A Switch Load Unit User Manual B 43 Register Definitions Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action 1 Info to read this register The default read back is but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Bit 7 6 5 4 3 2 1 0 Purpose MC3L 3 MC3L 2 MC3L 1 MC3L 0 MC3U 3 MC3U2 MC3U 1 MC3U 0 Setting state state state state state state state state Read Only Lower nibble bits 0 3 1 upper card MC3U 0 MC3U 3 Upper nibble bits 4 7 1 lower card MC3L 0 MC3L 3 Power On Reset State 1 Load Select 1 amp 2 W 6 This register controls the power selection relays for channels 1 and 2 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K208 K207 K206 K205 K204 K203 K202 K201 Chan2 4 Chan2 3 Chan2 2 Chan2 1 1 4 Chan1 3 1 2 Chan1 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Load Select 3 amp 4 W Base 7 This register controls the power selection relays for cha
138. 9378A is uniquely identified by card type 05 B 40 Bit 7 6 5 4 3 2 1 0 Purpose Card Card Card Card Card Card Card Card Type Type Type Type Type Type Type Type Setting 0 0 0 0 0 1 0 1 Read Only Power On Reset State 054 E6198B E6218A Switch Load Unit User Manual Register Definitions Card Configuration Base 1 This register reads back the card configuration The default read back is FF but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Note that you can use the mezzanine card registers described below for additional load configuration information Use the actions loadCardGetInfo to read this register Bit 7 6 5 4 3 2 1 0 Purpose undefined undefined undefined undefined undefined undefined CC1 CCO Setting X X X X X X state state Read Only x undefined Status amp Control R amp W Base 2 This register reads back the card s status It also can be used to reset the board or open all relays OAR Card status is defined as the state of the relay timer The relay timer is designed for the armature relays gt 4ms The timer restarts whenever the registers controlling the respective relays are written to or the card is reset The card remains in the busy state until the timer has timed out Bit 7 6 5 4 3 2 1 0 Read 1 1 1 1 1 1 1 Busy Write not used
139. 954 Row31 K155 K255 K355 K455 K955 Row32 K156 K256 K356 K456 K956 Row33 K157 K257 K357 K457 K957 Row34 K158 K258 K358 K458 K958 Row35 K159 K259 K359 K459 K959 Row36 K160 K260 K360 K460 K960 Row37 K161 K261 K361 K461 K961 Row38 K162 K262 K362 K462 K962 Row39 K163 K263 K363 K463 K963 Row40 K164 K264 K364 K464 K964 Table C 6 Measurement Matrix Relays for E8783A Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row1 K101 K201 K301 K401 K901 Row2 K102 K202 K302 K402 K902 Row3 K103 K203 K303 K403 K903 Row4 K104 K204 K304 K404 K904 Row5 K105 K205 K305 K405 K905 Row6 K106 K206 K306 K406 K906 Row7 K107 K207 K307 K407 K907 Row8 K108 K208 K308 K408 K908 Row9 K109 K209 K309 K409 K909 Row10 K110 K210 K310 K410 K910 Row11 K111 K211 K311 K411 K911 Row12 K112 K212 K312 K412 K912 Row13 K113 K213 K313 K413 K913 6198 E6218A Switch Load Unit User Manual Repair Information Table C 6 Measurement Matrix Relays for E8783A continued Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row14 K114 K214 K314 K414 K914 Row15 K115 K215 K315 K415 K915 Row16 K116 K216 K316 K416 K916 Row17 K117 K217 K317 K417 K917 Row18 K118 K218 K318 K418 K918 Row19 K119 K219 K319 K419 K919 Row20 K120 K220 K320 K420 K920 Row21 K121 K221 K321 K421 K921 Row22 K122
140. 97 amp zaze zszpeoi 5 06 189 7187 lt 9097 5 Areo 09 7 97 6 we Glosa 908 Aren 5 2095 918 918 909 09 ElSH 609 SOSA LOSA dm 607 0 ELEM 606 framh 904 Lun deae 2072 eale rsen 0 8 608 2185 E N rumen eue 5 2072 5 rael fram Elera 956 rmm freee been 0 8 swag fremont 80P4 S wwe ree miro m freer 2727 8087 2089 X Sl zwoil ezeo JO z epeo1 S 2 5 qzn qran 5 5 zepeoy e gt eese 08 ida 5 5 reper H H roor m CH E 5 eee p S Kuea team 80 SE nw Sewer 2024 802 2089 208 S x 2 x E 906 5 rumen G 208 AJS Goren ooa Sl ue 8 2020 2087 108 oey D0000000000000000000 LOEN 6027 2027 o00000000000000
141. A 16 Channel Dual Load Load Card 5 83 Using the Agilent N9378A 24 Channel Low Resistance Load Card 5 97 Using the Agilent N9379A 48 Channel High Density Load Card 5 105 This chapter discusses how to configure load cards and how to use loads with the various load cards EE Agilent Technologies 1 5 Using Load Cards and Loads Load Card Capabilities Table 5 1 Load Card Capabilities Function E6175A Slot Size No of Channels Max No of Channels Unshared Relays Maximum Current per Channel Current Measuring with Sense Resistor Current Measuring with Current Transducer Flyback Protection Available User Installed 75 4 15 peak E6176A 75 16 15 peak No Yes E6177A 24 24 2A No No No E6178B 8 8 30A No Yes Yes N9377A 16 dual load 75A 15 A peak N9378A 24 dual load 24 2A No No No N9379A 48 dual load 48 2A No No No U7177A 24 24 2A Yes No No U7178A 8 8 40A No Yes Yes U7179A 16 16 15A Yes No Yes 5 2 The Agilent E6175A 8 Channel High Current Load Card with integral current sensing is intended to be used with loads mounted on the card A 9 inch by 4 inch area of sheet metal is open on the front of the card for mounting loads The card is two slots wide to allow mounting of larger loads The Agilent E6176A 16 Channel High
142. AC1 Output register sets the Least Significant Bit LSB of the digital input B 6 E6198B E6218A Switch Load Unit User Manual Register Definitions B To set the value of the DAC output always write the MSB first followed by the LSB register offset 9 The output of the DAC will not update until the LSB is written See DAC Scaling Bits Write DAC1 DAC1 15 DAC1 DAC13 DAC1 DAC10 DAC Scaling Control Register W Base A The DAC output voltage is determined by the following Vout N 16 384 e 32 16 where N Decimal value of DAC code programmed MSB LSB Table B 4 shows some example values of N and the corresponding MSBs LSBs and DAC voltage outputs Table B 4 DAC Scaling Examples N Hex MSB LSB DAC V 1638310 3FFF 11111111 11111111 16V 122881 3000 00110000 00000000 8V 81921 2000 00100000 00000000 ov 4096 9 1000 00010000 00000000 8V Du 0000 00000000 00000000 16V To reset the Switch Load Unit including DACs Open Drain outputs and all Load and Pin Cards write a 1 to this register wait 5 mS and then write a 0 to this register DACs will reset to 0 Vout Bits 7654312 0 Write x X X X x Reset 6198 E6218A Switch Load Unit User Manual B 7 B Register Definitions Open Collector O
143. Agilent TS 5000 Functional Test System E6198B Switch Load Unit User Manual RE Agilent Technologies Notices Agilent Technologies Inc 2007 2012 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and written consent from Agi lent Technologies Inc as governed by United States and international copyright laws This manual covers the following Agilent equipment E6198B Switch Load Unit E6175A 8 Channel High Current Load Card E6176A 16 Channel High Current Load Card E6177A 24 Channel Medium Current Load Card U1777A 24 Channel Medium Current Load Card U7178A 8 Channel Heavy Duty Load Card U7179A 16 Channel High Current Load Card E6178B 8 Channel Heavy Duty Load Card N9377A 16 Channel Dual Load Load Card N9378A 24 Channel Low Resistance Load Card N9379A 48 Channel High Density Load Card E8792A Pin Matrix Card E8793A Pin Matrix Card E8782A 24 Instrument 40 Measurement Matrix Card E8783A 64 Pin Matrix Card E8794A Custom Card Manual Part Number E6198 90050 Edition 9th Edition August 2012 Printed in Malaysia Agilent Technologies Microwave Products Malaysia Sdn Bhd Bayan Lepas Free Industrial Zone 11900 Penang Malaysia Warranty The material contained in this docu ment is provided as is and is sub jectto being changed
144. B This arrangement lets you make either floating or earth referenced connections as shown in Figure 6 6 Figure 6 6 J1 Example Instrument Connections J1 INST Connections 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 INST3 INST4 INSTS INST6 INST7 INST8 INST9 INST10 INST11 INST12 INST13 INST14 INST15 INST16 J1 Floating Connections INST1 INST2 use filler plugs on each side of cable INST1 Cable Filler gt 12 INST3 i Agilent E3750 61604 E6170 61614 U8970 61701 Single Ended Instruments sigh T wo Connection Signa J1 Earth Referenced Connections no filler plugs needed Cable lt Cable lt 4 INST3 Cable ate Pos He INST4 Agilent E3750 61621 E6170 61612 U8970 61700 U8970 61702 Floating Instruments EE Signal Agilent 1252 4353 Filler Plug o 6198 E6218A Switch Load Unit User Manual 6 6 12 Using the Pin Matrix Cards Figure
145. Figure 5 39 shows one possible power supply configuration In this configuration Channel 1 is configured for a single load connected to V Load 8 would be a short to provide a path return Channels 2 and 3 are connected as a bridge load a load that is floating with respect to the power system Other configurations are possible For example the negative terminals of two external power supplies could be connected together at the UUT and the positive terminals could be connected to P100 and P200 respectively and distributed to the individual channels This would provide two simultaneous power supply connections to the UUT or multiple UUTs E6198B E6218A Switch Load Unit User Manual 5 57 5 5 58 Using Load Cards and Loads CAUTION Note that the main power bus as well as each individual channel bus is rated for 30 Amps continuous Thus you can run 30 Amps per channel for all 8 channels only if they are wired in a bridge configuration or the current through the power supply bus PSbus does not exceed 30Amps It is possible to close more than one channel at a time The power supply connections to the load card are rated for 30 Amps maximum continuous and individual channels are rated at 30 Amps continuous Do not exceed these specifications Local Remote Sensing Switch S1 allows the external power supply remote sensing to be either local P100 P200 or remote through CN2 to UUT Refer to Figure 5 39 Selecting a L
146. Gnd INST2 INST3 30 Gnd INST3 INST4 29 Gnd INST4 INST5 28 Gnd INST5 INST6 27 Gnd INST6 INST7 26 Gnd INST7 INST8 25 Gnd INST8 INSTO 24 Gnd INST9 INST10 23 Gnd INST10 INST11 J1 22 Gnd INST11 INST12 96 Pin DIN C 21 Gnd INST12 INST13 Instrument and Abus Access 20 Gnd INST13 INST14 19 Gnd INST14 INST15 18 Gnd INST15 INST16 17 Gnd INST16 NIC 16 NIC 15 NIC NIC NIC 14 NIC N C N C 13 Gnd Abus1 UUT Common 12 Gnd Abus2 UUT Common 11 Gnd Abus3 UUT Common 10 Gnd Abus4 UUT Common 9 8 Gnd N C N C 7 Gnd N C N C 6 Gnd N C N C 5 Gnd N C N C 4 Gnd Abus1 UUT Common 3 Gnd Abus2 UUT Common 2 Gnd Abus3 UUT Common 1 Gnd Abus4 UUT Common o 6 10 6198 E6218A Switch Load Unit User Manual J1 Instrument Connections Using the Pin Matrix Cards 6 Figure 6 6 shows where instrument connections can be made on the J1 Connector Notice for example that the INST2 connection is located in Row 32 Column C and is also connected to Row 31 Column
147. Load1 1 Load1 2 Install the flyback protection devices with the positive or negative side towards the UUT as appropriate for your application On each of the 16 channels note the location of the polarization dot as shown in the flyback component locator diagram Figure 5 57 MOV Metal Oxide Varistor or back to back zener diodes are recommended for flyback voltage protection Protection Devices Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RTx or RTy 2 required per load 1 at NC and 1 at NO provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 59 Typical Agilent N9377A Load Card Flyback Protection Circuit NC i High Side 50mQ Driver Lo NN oo oo gt gt NO B ml 16V goma RTx 9 UUT NC 50mQ L R DK Internal NO nterna Load Protection ML Typical small MOV 8mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000mS 0 90 Joules watt seconds Transient peak current 8 2057 100 Amperes Varistor voltage 1 0mA DC 300 Vdc Max Maximum Clamping V
148. Model LA25 NP Additional information about the use of this current transducer is available from the manufacturer This load card was tested with a LEM Model LA25 NP Current Transducer from LEM USA Inc 6643 West Mill Road Milwaukee WI 53218 414 353 0711 E6198B E6218A Switch Load Unit User Manual 5 13 5 5 14 Using Load Cards and Loads Selecting and Loading Flyback Protection CAUTION Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant but provides additional back up protection in case a defective UUT is tested The system integrator is responsible for ensuring flyback protection devices are installed on the load cards The load cards are designed to handle a maximum of 500 flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages in excess of 500 V eak may results in damage to the load card or SLU The Agilent E6175A 8 Channel Load Card comes with provisions for user installed flyback voltage protection Figure 5 9 is a detail of the first channel pair channels 1 and 2 on the component locator diagram of the 8 Channel Load Card It shows the location and polarity orientation for channel 1 s RT1 and RT2 and channel 2 s RT3 and RT4 flyback protection de
149. ST14 INST15 18 Gnd INST15 INST16 17 Gnd INST16 INST17 16 Gnd INST17 INST18 15 Gnd INST18 INST19 14 Gnd INST19 INST20 13 Gnd INST20 INST21 12 Gnd INST21 INST22 11 Gnd INST22 INST23 10 Gnd INST23 INST24 9 Gnd INST24 NC 8 Gnd Abus1 UUT Common 7 Abus2 UUT Common 6 Gnd Abus3 UUT Common 5 Gnd Abus4 UUT Common 4 Gnd Abus1 UUT Common 3 Gnd Abus2 UUT Common 2 Gnd Abus3 UUT Common 1 Gnd Abus4 UUT Common 6 23 6 Using the Pin Matrix Cards J1 Instrument Connections The instrument connection on J1 connector is illustrated in Figure 6 6 For 8782 the instrument number extends to instrument 24 The typical BNC cables used for instrument connections to J1 J2 Connector Pinouts are shown in Figure 6 7 Figure 6 16 shows the pinouts for connector JZ which provides rear Aux line access for E8782A Figure 6 17 shows the pinouts for connector JZ which provides rear Aux line access for E8783A 6 24 6198 E6218A Switch Load Unit User Manual Figure 6 16 J2 Pinouts Rear Aux Access for E8782A abc de Using the Pin Matrix Cards Row a b 32 Aux1 UUT Common System Ground UUT Common AUX 33 31 Aux2 UUT Common System Ground UUT Common AUX 34 30 Aux3 UUT Common System Ground UUT Common AUX 35 29 Aux4 UUT Common System Ground UUT Common AUX 36 28 Aux5 UUT Common System Ground
150. T K41 gt K42 Pwrsw2 L F2 Chan2 Note Isense K6 K43 K44 Relay pattern K7 F3 ts gt Chan3 PwrSw3 K46 P1 E Cm F5 Chan4 j NO J7 6 4 Koo K47 ca 1 M PwrSw5 F6 Chan5 q J42 000 ojo o o ojo o o ojo ooo K49 K50 am oc M Chan6 amaloa 2 4 6 8 10 12 14 16 EE Channel ono 1513119 7 5 3 1 K16 K51 F8 K52 PwrSw8 PwrSw7 Chan8 Chan7 K55 K53 K56 K54 oo 00 0000 6 e Channel 9 Flyback Protection ua PwrSw9 PwrSw10 Chan9 Chan10 10 1 K57 K59 K58 K60 E16 i E F10 Chan12 P Channel 9 Isense Resistor co 11 K64 P K23 LS Lj K24 PwrSw13 13 K65 F12 K66 2 PwrSw14 13 14 K25 K68 K26 K67 c F14 gt K27 PwrSw15 Chan15 8 K69 lt K70 gt K30 PwrSw16 Chan16 K31 an K32 K71 F16 L Electro Static Discharge ESD Non Component Side Protection E6198B E6218A Switch Load Unit User Manual Repair Info
151. T value of 1405 1 The figure is an industry standard term For example if a fuse with a rating of I2T 100 experiences a current surge of 10 A it can maintain that current for 1 second before its capacity is exceeded 10A 10A 1 Second 100 Selecting and Loading Flyback Protection CAUTION Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant but provides backup protection in case a defective UUT is tested The system integrator is responsible for ensuring the flyback protection devices are installed on the load cards The load cards are designed for a maximum of 500 flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages in excess of 500 may results in damage to the load card or SLU The Agilent U7179A load card provides location for user to install through hole flyback protection components E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Flyback protection component can be place between load and NC or between load and NO Factory does not provide flyback protection component Example flyback protection component are diodes and MOV metal oxide varistor Flyback protection component is installed mostly in application wher
152. This register reads back the Card Type 044 of the card Bit 7 0 Purpose Card Type Setting 04n B 32 E6198B E6218A Switch Load Unit User Manual Card Configuration Base 01 This register reads back the Card Configuration The Card Register Definitions Configuration is determined by the user using J2 to distinguish different load configurations of the same load board Card Type When unused a read of this register will be FF Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Card Configure R J2 10 J2 9 J2 8 J2 7 J2 5 J2 4 J2 3 J2 2 Status Register R Base 02 This register contains the BUSY bit bit 0 The BUSY bit reflects the state of all relay timers A zero means the card is busy setting a relay and a one means it is ready or done 6198 E6218A Switch Load Unit User Manual Bit 7 1 0 Purpose Undefined BUSY Setting all 1s state B 33 B 34 Register Definitions CAUTION Current Sense Select W 03 This register controls the current sense relays of the card Since only one current sense channel at a time per slot is allowed these channel selects are encoded This allows for a single channel to be selected At reset no channel is selected SELECT BITS 7 4 BITS 3 0 RELAYS No Channel N A 0000 None Channel 1 N A
153. UT Common Main Access for E8782A 6 27 Figure 6 19 P2 Pinouts Row Aux and Common Main Access for E8783A 6 28 Figure 6 20 Installed 32 Pin Matrix Cards 6 29 7 Using the Custom Card Figure 7 1 Custom Card Features 7 3 Figure 7 2 J2 Configuration Lines Pinouts 7 4 Figure 7 3 J3 J4 Breakouts for Agilent E1418 DAC 7 5 Figure 7 4 J3 or Connector Breakouts for Agilent E6174 Event Detector 7 6 Figure 7 5 J5 and J6 Breakouts 32 Pin Matrix Cards 7 7 Figure 7 6 E8794A Layout 7 8 Figure 7 7 E8794A Component Locator 7 9 Figure 7 8 E8794A Schematic 7 10 Figure 7 9 Status and Control Interface 7 11 A Switch Load Unit And Card Specifications B Register Definitions Figure B 1 Relay controlled by registers Base 03h Base 09h 35 Figure B 2 Mezzanine Card Layout 42 Figure B 3 Mezzanine Card Layout 53 C Repair Information Figure C 1 Agilent E6175A Component Locator Rear View C 3 Figure C 2 Agilent E6176A 16 Channel Load Card Component Locator Rear View 4 A Glossary Of Terms xiv 6198 E6218A Switch Load Unit User Manual List of Tables 1 Legal Information Table 1 1 Agilent Sales And Support Contact Numbers 1 3 2 Safety and Regulatory Information Table 2 1 Environment Requirements 2 4 Table 2 2 Safety Symbols and Regulatory Markings 2 6 3 Switch Load Unit and Plug In Cards Table 3 1 Switch Load Unit Rating Electrical 3 2 Table 3 2 Switch Load Unit Rating Mechanic
154. UUT Common System Ground UUT Common AUX 56 lel 8 Aux25 UUT Common System Ground UUT Common AUX 57 7 Aux26 UUT Common System Ground UUT Common AUX 58 6 Aux27 UUT Common System Ground UUT Common AUX 59 5 Aux28 UUT Common System Ground UUT Common AUX 60 4 Aux29 UUT Common System Ground UUT Common AUX 61 3 Aux30 UUT Common System Ground UUT Common AUX 62 2 Aux31 UUT Common System Ground UUT Common AUX 63 1 Aux32 UUT Common System Ground UUT Common AUX 64 a bc de J2 160 Pin DIN Rear Aux Access 6 26 6198 E6218A Switch Load Unit User Manual P2 Connector Pinouts Using the Pin Matrix Cards 6 Figure 6 18 shows the pinouts for connector P2 which provides Row Aux and UUT Common access Figure 6 18 P2 Pinouts Row Aux and UUT Common Main Access for E8782A Row e d b a 1 e eT 9 1 1 Row33 1 Aux33 UUT Common 2 Row 2 Row 34 Aux2 Aux34 UUT Common 3 Row 3 Row 35 Aux3 Aux35 UUT Common 4 Row 4 Row 36 Aux4 Aux36 UUT Common 5 Row 5 Row 37 Aux5 Aux37 UUT Common 6 Row 6 Row 38 Aux6 Aux38 UUT Common 7 Row 7 Row 39 Aux7 Aux39 UUT Common 8 Row 8 Row 40 Aux8 Aux40 UUT Common 9 Row 9 NC Aux9 NC UUT Common 10 Row 10 NC Aux10 NC UUT Common 11 Row 11 NC 11 NC UUT Common 12 Row 12 NC Aux12 NC UUT Common 13 Row
155. a cable to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to J102 or to the exposed end of an Agilent E3750 61607 Agilent E6170 61610 or Agilent E6198 61625 cable connected to J102 Figure 3 9 is a J102 connector pinout and Figure 3 10 shows the pinouts for the exposed cable connector end Table 3 6 defines the signals available on J102 E6198B E6218A Switch Load Unit User Manual 3 Switch Load Unit and Plug In Cards Figure 3 9 Switch Load Unit J102 Connector Pinouts Row 1 Row 2 Row 3 Row 4 Row 5 Row 6 Row 7 Row 8 Row 9 Row 10 Row 11 Row 12 Row 13 Row 14 Row 15 Row 16 Row 17 Row 18 Row 19 Row 20 Row 21 Row 22 Row 23 Row 24 Row 25 Row 26 Row 27 Row 28 Row 29 Row 30 Row 31 Row 32 System Gnd Fixture ID 1 Fixture ID 3 Fixture ID 5 Fixture ID 7 System Gnd Digital In 1 Digital In 3 Digital In 5 Digital In 7 Spare DigOut 1 Spare DigOut 3 Spare DigOut 5 Spare DigOut 7 ISense 1 ISense 2 ISense 3 ISense 4 Power Bus Sense 2 Power Bus Sense 4 Open Drain Out 1 Open Drain Out 3 Open Drain Out 5 Open Drain Out 7 12 Vdc Supply 12 Vdc Supply Spare Supply System Gnd System Gnd No Connection DAC1 DAC2 7 9 10 12 18 15 19 16
156. across a four terminal current sense resistor Two load cards are designed to connect to the current sense bus in the Switch Load Unit The 8 Channel and 16 Channel High Current Load Cards Each channel s current sense lines are multiplexed so that on each card only one channel at a time can be connected to the Switch Load Unit current sense bus solated Inputs Inputs that have the common connected to system ground e ISrcHi and ISrcLo The signal between the E1411B DMM Current Source Channel and J3 row 3 of the Measurement Control module LADDR Logical Address The address set on a VXlbus module that 15 unique to that system This usually corresponds to its slot number LEM Module current transducer with multiple primary coil taps that allows it to be set for five different current levels 6198 E6218A Switch Load Unit User Manual A 3 A Glossary Of Terms Load Card A C sized card designed to fit in the Switch Load Unit that provides switching for the various loads and provisions for either internal load mounting or connections for external load mounting Load cards provide a two level card ID card type and load configuration ID Load Switching A load that can be switched in or out of a power supply circuit on command Module As used in this manual specifically refers to a VXlbus compatible module instrument MOV Metal Oxide Varistor An electronic component whose characteristic resis
157. ad Unit User Manual Register Definitions Bit Setting state 6 5 4 3 2 1 0 state state state state state state state Read Only e Lower nibble bits 0 3 1 upper card MC1U 0 MC1U 3 Upper nibble bits 4 7 1 lower card MCIL 0 MCIL 3 Power On Reset State 1 Mezzanine Card 2 Configuration R Base 4 This register reads configuration information from the 2 upper and 2 lower mezzanine cards See Figure B 2 for a picture of the mezzanine card layout Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGetInfo to read this register The default read back is but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Bit Purpose MC2L 3 6 5 4 3 2 1 0 MC2L 2 MC2L 1 MC2L 0 MC2U 3 MC2U2 MC2U 1 MC2U 0 Setting state state state state state state state state Read Only Lower nibble bits 0 3 1 upper card MC2U 0 MC2U 3 Upper nibble bits 4 7 1 lower card MC2L 0 MC2L 3 Power On Reset State 1 Mezzanine Card 3 Configuration 8 Base 5 This register reads configuration information from the 3 upper and 3 lower mezzanine cards E619
158. ad Unit and Plug In Cards 3 E6198B Standalone Switch Load Unit Description The Switch Load Unit Figure 3 1 consists of a standard VME type enclosure a custom high current backplane and slots for up to 21 optional Agilent plug in cards The following plug in cards are available Agilent E6175A 8 channel load card Agilent E6176A 16 channel load card Agilent E6177A 24 channel load card Agilent U7177A 24 channel load card with current sense Agilent E6178B 8 channel heavy duty load card Agilent N9377A 16 channel dual load load card Agilent N9378A 24 channel low resistance load card Agilent N9379A 48 channel high density load card Agilent E8792A 32 pin matrix card with instrumentation support Agilent E8793A 32 pin matrix card Agilent E8782A 40 pin matrix card with 24 instrumentation support Agilent E8783A 64 pin matrix card Agilent E8794A custom card Agilent U7178A 8 channel heavy duty load card Agilent U7179A 16 channel high current load card Load cards are described in detail in Chapter 5 and Appendix A to Appendix C of this manual The pin matrix cards are described in Chapter 6 The E8794A custom card is discussed in Chapter 7 E6198B E6218A Switch Load Unit User Manual 3 3 3 Switch Load Unit and Plug In Cards Figure 3 1 Agilent E6198B Standalone Switch Load Unit Front View Figure 3 2 Agilent E6198B Standalone Switch Load Unit Back View 3 4 E6198B E6218A Switch Load Unit User Manual Switch Load U
159. ad x 1 2 Load x 3 1 Load x 3 2 AGILENT Load x 13 2 Load x 13 1 Load x 15 2 Load x 15 1 Load x 12 2 Load x 14 2 00000000000000000000 Load x 1 2 1 00000000000000000000 Load x 1 4 1 channel number 1 5 9 25 29 or 33 5 110 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 The mezzanine cards plug into the 1 3 upper and 1 3 lower positions on the load card The channel number depends on the placement of the mezzanine card You can also read the channel assignments from the printing on the front or back of the load card You may need to hold the load card at an angle to see the printing from the front when the mezzanine cards are installed The Mezzanine ID pins are located in pairs numbered 1 4 at the top of the card This lets you identify each mezzanine card using a four digit binary number least significant digit on the left at ID 1 that you can read back through the interface using the loadCardGetInfo action See the TS 5000 System Software User s Guide for more information AII four bits are pulled to a high state on the load card PCA so the default readback value is OxF The left pin of each pair is the digital input and the right pin is ground Shorting a wire across the pair pulls the bit to the low binary state 6198 E6218A Switch Load Unit User Manual 5 111 5 Using Load Cards and Loads THIS PAGE IS INTENTIONALLY LEFT BLANK 5 112 6198 E6
160. al 3 2 Table 3 3 Backplane Connectors for E6198B 3 12 Table 3 4 Backplane Factory Default Connector Settings 3 13 Table 3 5 Breakout Board Connectors 3 14 Table 3 6 J102 signal definitions 3 19 Table 3 7 Switch Load Unit J1 Pinout 3 20 Table 3 8 Switch Load Unit J2 Pinout 3 20 Table 3 9 Switch Load Unit J3 Pinout 3 20 Table 3 10 Power Supply Input for each Jumpers 3 21 Table 3 11 Fuses Ratings 3 24 4 Configuring the Switch Load Unit 5 Using Load Cards and Loads Table 5 1 Load Card Capabilities 5 2 Table 5 2 Components involved in LEM Module Installation Table 5 3 CH1 to CH16 flyback protection 5 75 6 Using the Pin Matrix Cards 7 Using the Custom Card A Switch Load Unit And Card Specifications B Register Definitions Table B 1 Standard Registers 2 Table B 2 Standard Registers 2 Table B 3 Switch Load Unit Registers 4 Table B 4 DAC Scaling Examples 7 Table B 5 OCout States 8 Table B 6 Summary of Load Card Register Definitions 10 6198 E6218A Switch Load Unit User Manual 5 13 XV C Repair Information Table C 1 Measurement Matrix Relays 5 Table C 2 Instrument Matrix Relays 7 Table C 3 Bypass and Disconnect Relays 7 Table C 4 Miscellaneous Relays 7 Table C 5 Measurement Matrix Relays for E8782A 8 Table C 6 Measurement Matrix Relays for E8783A 10 Table C 7 Bypass and Disconnect Relays for E8782A and E8783A C 12 A Glossary Of Terms xvi
161. al bit is set to 0 does not change the state of the disconnect relays When the manual bit is set to 0 writing to this register puts new relay settings into a on board latch These settings have no impact on the state of the disconnect relays as long as the manual bit is set to 0 However if the manual bit is set back to 1 the disconnect relay state written to this register will immediately be invoked resulting in a immediate change in the state of the disconnect relays Not Used Base 5 Register offset 5 used only for a placeholder to make software addressing simpler 6198 E6218A Switch Load Unit User Manual B 65 B Register Definitions Auxiliary Relay 1 8 W Base 6 Auxiliary Relay 9 16 W Base 7 Auxiliary Relay 17 24 W Base 8 Auxiliary Relay 25 32 W Base 9 Row Relay 1 8 W Base A 1049 Row Relay 9 16 W Base 1149 Aux Relays Bits 7 6 5 4 3 2 1 0 Write Auxg Aux Auxg Auxs Aux4 Aux3 Aux Bits 7 6 5 4 3 2 1 0 Write Auxqg 5 Aux 3 Auxqo Aux AUXg Bits 7 6 5 4 3 2 1 0 Write Auxs4 Auxa4 Auxog Aux4g Aux4g AuX47 Bits 7 6 5 4 3 2 1 0 Write Auxa Auxa4 AuXog
162. al block jumper allows convenient pull up or pull down of the various inputs It also allows for terminating a UUT load at a different voltage than ground The factory default is to provide two jumper combs one that ties all the pins on J3 J8 together and one that ties all the pins on J10 J15 together The NO pins are jumpered to power bus 2 E6198B E6218A Switch Load Unit User Manual 5 49 5 5 50 Using Load Cards and Loads and the NC pins are jumpered to power bus 1 The jumper combs for J3 J8 and J10 J15 can be easily cut to provide bus or pin isolation between the various input power bus connections Selecting a Current Sense Resistor Value CAUTION The card comes with a factory loaded with a three watt 0 05 Q 0 1 sense resistor already installed If lower value currents are being measured requiring a larger resistance value to make the sense voltage readable then replace the sense resistor with a four wire resistor of higher value Be sure to size the power dissipation of the sense resistor large enough to handle the expected current of the load Using the Power Switches as General Purpose Relays The U7177A has a special feature that is similar to E6177A load card It has both the high and low side of the load brought out to the front panel This allows the load switching relay to be alternatively used as a general purpose switching relay For instance to use channel 1 of the load card as a general purpose swit
163. alled card disconnect AC power from the mainframe and from other cards that may be connected to the cards CAUTION STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to electrical components observe anti static techniques whenever installing or removing a card in the Switch Load Unit or whenever working on a card RE Agilent Technologies 4 4 Configuring the Switch Load Unit Card Location Recommendations 4 2 Slot 1 to 21 of a Switch Load Unit are identical and able to take any supported Pin Matrix or Load Cards This sections provides an example on card installation guideline to maintain consistency between test systems Your test system may use a different guideline that fits your application For a single Agilent E6198B Switch Load Unit installed in the system Install matrix cards first Slots 15 through 21 are reserved for the matrix and custom modules Starting from slot 21 and working down install matrix modules and custom modules in the following order Agilent Pin Matrix and Instrument Multiplexer Card E8792A or E8782A Agilent Pin Matrix Card s E8793A and or E8783A Agilent E8794A Custom Card s Install the load cards using the following rules Agilent N9379A 48 Channel Load Cards Install any N9379A cards first starting at slot 1 Agilent E6177A 24 Channel Load Cards Install any E6177A cards next Agilent U7177A 24 Channel Load Cards
164. annels 5 and 6 J7 1 and 2 Channels 7 and 8 J7 3and 4 Bridge load flyback protection may be installed to power busses as a normal load if jumpered or channel to channel by installing protection devices across the bridged channels Connecting Loads Loads are mounted on the Agilent E6175A s sheet metal mounting area The loads are wired to connector CN1 which mates to the Agilent E6175A s J1 connector Figure 5 13 shows the Agilent E6175A s load mounting area and connectors J1 and CN1 Figure 5 13 Agilent E6175A Load Mounting Area and CN1 J1 Connectors Load Mounting Area o 1 ES 000 PS Sal 0000 oaoa 000 100000 IT 0000 aoao EI s 000 D P1 J1 E6198B E6218A Switch Load Unit User Manual Figure 5 14 Agilent E6175A Load Wiring Schematic and CN1 Pinouts Load Wiring Using Load Cards and Loads 5 Figure 5 14 is a simplified schematic and CN1 connector pinout showing how loads are connected to CN1 Load 1 connects to Channel 1 CN1 row 16 and Power 1 CN1 row 15 Load 2 connects to Channel 2 CN1 row 14 and Power 2 CN1 row 13 and so on CAUTION three pins in each row see Figure
165. aterial as well as routing the test cables to the front panel connectors of the module through non conductive flexible conduit such as that used in electrical power distribution Safety Symbols and Regulatory Markings Symbols and markings on the system in manuals and on instruments alert you to potential risks provide information about conditions and comply with international regulations Table 2 Z defines the symbols and markings you may find in a manual or on an instrument Table 2 2 Safety Symbols and Regulatory Markings Symbols Description Safety symbols Warning risk of electric shock Caution refer to accompanying documents Alternating current Both direct and alternating current Earth ground terminal Protective earth ground terminal Frame or chassis terminal Terminal is at earth potential Used for measurement and control circuits designed to be operated with one terminal at earth potential FO de gt Switch setting indicator O Off On E6198B E6218A Switch Load Unit User Manual Safety and Regulatory Information 2 Table 2 2 Safety Symbols and Regulatory Markings continued Symbols Description Standby supply units with this symbol are not completely disconnected from ac mains when this switch is off To completely disconnect the unit from ac mains either disconnect the power cord or have a qualified electrician install an external switch Regulator
166. ch Load Unit User Manual 5 3 5 4 5 Using Load Cards and Loads Loads Overview Figure 5 1 shows a conceptual block diagram of a typical load application having these four main areas Power Supply Load Card Loads Unit Under Test UUT Figure 5 1 Loads Sources Conceptual Overview Simplified Load Card Unit Under Test V lt lt Power Bus 2 Power Bus 1 _ External Loads and Shorts E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Load Cards This section describes how to configure and use the load cards Load Card Type and Configuration ID Each load card type is assigned a card type number as follows Agilent E6175A 8 Channel Card Type is 1 Agilent E6176A 16 Channel Card Type is 2 Agilent E6177A 24 Channel Card Type is 3 Agilent U7177A 24 Channel Card Type is 24 Agilent E6178B 8 Channel Heavy Duty Card Type is 4 Agilent N9378A 24 Channel Low Resistance Card Type is 5 Agilent N9379A 48 Channel High Density Card Type is 6 Agilent N9377A 16 Channel Dual Load Card Type is 7 Agilent U7178A 8 Channel Heavy Duty Card Type is 25 Agilent U7179A 16 Channel High Current Card Type is 32 Except for the N9378A and N9379A each load card is equipped with a 10 pin connector to allow assignment of a unique binary code ID number to each card This is useful for verifying a particular configuration of the cards in the SLU Refer to
167. ching relay jumper across the LOAD 1 pins on the load card See Figure 5 35 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 35 Using the 24 Channel Load Card Switches as GP Relays Configured for Normal Loading UUT External Loads Load Mount P2 Switches Loads T _ NO 1 Chan 1 e eo lt C Load 1 PwrSwi ower Bus Common NC 1 lt lt Configured for General Purpose switching Rs NO 1 Chan 1 4 e e amp PwrSw1 NC 1 Common lt Neither side of the power supply should be attached to J9 Power Bus CAUTION When using a channel of the Agilent U7177A as a GP switch make sure that neither the NO nor NC connectors for that channel are jumpered to the load card power bus terminals on J9 Connecting Loads Loads are mounted externally and connected to the load card via wires or cables The loads are wired to connector CN1 which mates to the Agilent U7177A s J1 connector Figure 5 36 shows these connectors E6198B E6218A Switch Load Unit User Manual 5 51 5 Using Load Cards and Loads Figure 5 36 Agilent U7177A Connector J1 and Mating Connector CN1 co co co co 00 00 0000000 LJ WLU Load Wiring Figure 5 37 is a simplified schematic and CN1 connector pinout showing how loads are connected to CN1 5 52 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Fi
168. cting E6198B to the Computer via USB Interface or Parallel Port 4 12 Adding a Second Switch Load Unit 4 13 Load Box Installation 4 14 5 Using Load Cards and Loads Load Card Capabilities 5 2 Loads Overview 5 4 Using the Load Cards 5 5 Load Card Type and Configuration ID 5 5 Using the Agilent E6175A 8 Channel Load Card 5 7 Selecting a Power Supply Configuration 5 9 Selecting a Current Sense Method 5 10 Installing a LEM Current Transducer 5 11 Selecting and Loading Flyback Protection 5 14 Protection Devices 5 16 E6198B E6218A Switch Load Unit User Manual Selecting a Load Fuse 5 17 Sample Load Configurations 5 17 Setting up a Bridge Configuration 5 19 Connecting Loads 5 20 Load Wiring 5 21 Current Sharing 5 22 UUT Connections 5 23 Using the Agilent E6176A 16 Channel Load Card 5 25 Selecting a Power Supply Configuration 5 27 Selecting a Current Sense Resistor Value 5 28 Selecting a Load Fuse 5 28 Selecting and Loading Flyback Protection 5 28 Protection Devices 5 30 Connecting Loads 5 32 Load Wiring 5 32 Current Sharing 5 34 External Load Mounting Options 5 35 UUT Connections 5 36 Using the Agilent E6177A 24 Channel Load Card 5 38 Card Layout 5 40 Selecting a Power Supply Configuration 5 41 Using the Power Switches as General Purpose Relays 5 41 Connecting Loads 5 42 Load Wiring 5 44 UUT Connections 5 45 Using the Agilent U7177A 24 Channel Load Card 5 47 Selecting a Power Supply Configuration 5 49 Selecti
169. d B 80 E6198B E6218A Switch Load Unit User Manual Register Definitions Card Configuration R Base 1 Measurement matrix card configuration and firmware revision FWR register Initial firmware revision 0 Bits 7 6 5 4 3 2 1 0 Read FWR3 FWR2 FWR1 0 0 0 0 0 Status and Control R W Base 2 This register reads back the card s status It can also be used to Reset and Open All Relays OAR Bits 7 6 5 4 3 2 1 0 Read Busy 0 OAR 0 X X X Reset Read Only e Busy 0 indicates busy 1 indicates not busy Write and Read Bits OAR 0 causes no change 1 causes all relays to open Reset 0 causes no change 1 causes board reset and triggers the relay timer Clears itself afterward Not Used Base 3 Register offset used only for placeholder to make software addressing simpler Abus control and protection bypass relay W Base 4 Measurement matrix card Abus and protection bypass relay control register All relay control registers are positive true logic writing 0 opens the relay and writing 1 closes the relay Bits 7 6 5 4 3 2 1 0 Write AB4 AB3 AB2 AB1 PB4 PB3 PB2 PB1 e Writing to PB4 PB1 sets state of protection bypass relays e Writing to ABA ABI sets state of Abus disconnect relays 6198 E6218A Switch Load Unit User Manual B 81
170. depends on the placement of the mezzanine card See Figure 5 66 for details of card placement and channel locations You can also read the channel assignments from the printing on the front or back of the load card You may need to hold the load card at an angle to see the printing from the front when the mezzanine cards are installed The Mezzanine ID pins are located in pairs numbered 1 4 at the top of the card This lets you identify each mezzanine card using a four digit binary number least significant digit on the left at ID 1 that you can read back through the interface using the loadCardGetInfo action See the TS 5000 System Software User s Guide for more information All four bits are pulled to a high state on the load card PCA so the default readback value is The left pin of each pair is the digital input and the right pin is ground Shorting a wire across the pair pulls the bit to the low binary state 6198 E6218A Switch Load Unit User Manual 5 101 5 5 102 Using Load Cards and Loads Figure 5 68 Agilent N9378A Load Mounting Area and CN1 J1 Connectors Loadx 1 Loadx 2 Load x 6 4 Load x 6 3 Load x 6 2 Load x 6 1 Mezzanine card IDs 100 OO 003800 4 MEZ TD OOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOCO AGILENT OOOOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOOOO Load x 1 1 Load x 1 2 Load x 1 3 Load x 1 4 Load x 7 4 Load x 7 3 Load x 7 2 Load x 7 1 channel numb
171. differential amplifier See Figure B 1 Since only one current sense channel at a time per slot is allowed these channel selects are encoded This allows selection of zero or only one current sense relay at a time Writing to this register starts the reed relay timer 6198 E6218A Switch Load Unit User Manual Bit 7 6 5 4 3 2 1 0 Purpose DSS Undefined CSS4 CSS3 CSS2 CSS1 CSSO Setting Select No all 1s Select No Select No Select No Select No Select No DSS 0 1 State Without Diff Amp With Diff Amp Relay K200 K201 CSS 0 17 31 1 2 3 4 5 6 7 8 Rela Nene K301 K303 K304 K306 K308 K310 K312 K314 y K525 K302 K305 K307 K309 K311 K313 K315 CSS 9 10 11 12 13 14 15 16 Rela K316 K318 K320 K322 K324 K326 K328 K330 Y K317 K319 K321 K323 K325 K327 K329 K331 e Write Only Undefined bits read back as all 1s DSS Differential amplifier select Set to 1 to place diff amp into Isense path CSS current sense select Isense Bits 0 4 select the channel to connect to the Isense bus e Valid CSS values are 01 1054 For example 01 selects chl 024 selects ch2 etc OF selects ch15 104 selects ch16 Power on Reset state is no current sense channels selected and differential amp disconnected from the Isense bus B 37 B Register Definitions Load
172. distributed to the individual channels This would provide two simultaneous power supply connections to the UUT or multiple UUTs Note that the main power bus as well as each individual channel bus is rated for 40 A continuous Thus you can run 40 A per channel for all 8 channels only if they are wired in a bridge configuration or the current through the power supply bus PSbus does not exceed 40 A CAUTION It is possible to close more than one channel at a time The power supply connections to the load card are rated for 40 A maximum continuous and individual channels are rated at 40 A continuous Do not exceed these specifications Local Remote Sensing Switch S1 allows the external power supply remote sensing to be either local P100 P200 or remote through CN2 to UUT Refer to Figure 5 43 Selecting a Load Fuse The factory installed load fuses are 40 A fuses These fuses may be replaced by fuses with a lower value depending on your load requirements The Agilent U7178A was qualified with an ATO Blade Fuse Refer to the module specifications for more information CAUTION To maintain Agilent U7178A safety and reliability replace fuse with ATO Blade 40 A Fuse only Current Monitor Each channel on the Agilent U7178A uses a LEM model LAH 50 P Current Transducers with a 100 resistor for sensing the current through each channel The sense relays are switched independently from the channel load relays The LEM current
173. ds 3 Figure 3 12 Switch Load Unit Rear View System Integrated Option N warnine G 5 To chenge fuse unscrew to remove panel b For continued fro pretactlon replace fuses with typo end rating 10149 Fasten this panel securely to prevent electrical shock A WARNING AA Fuses Rating No operator serviceable parts io Refer and servicing to serve personnel Nn rmm Disconnect al extemal sources before removing cover pud mm WAN m DC Power 3us Connections On Backplane Sense Lines Power Lines 3 2 Bt PB Ground a ao r B 129 4 x Aa le oh he oh k UV Um Cm Caci ISense Bussed Spit Lp Sonso Locei L Frame Select J 21 20 19 if 18 17 16 15 14 13 12 11 10 9 8 7 8 5 4 3 if 2 1 E6198B E6218A Switch Load Unit User Manual 3 23 J Switch Load Unit and Plug In Cards Fuse Ratings Fuses are incorporated inside E6198B Switch Load Unit There are 10 fuses and 7 fuses for Standalone SLU and Integrated SLU
174. e 18h 2449 Bits 7 6 5 4 3 2 1 0 Write Insto4 11563 11562 115651 115650 Inst4o Inst4a Inst47 ABUS to Row Row Relay 1 8 W Base 19 2510 Bits 7 6 5 4 3 2 1 0 Row Relay 9 16 W Base 2610 7 6 5 4 3 2 1 0 Write ROW46 Row45 Row44 Row 43 Row 9 76 E6198B E6218A Switch Load Unit User Manual Register Definitions Row Relay 17 24 W Base 1B 2710 7 6 5 4 3 2 1 0 Write Row 4 Row23 Row29 Row 48 Row47 Row Relay 25 32 W Base 1C 2849 Bits 7 6 5 4 3 2 1 0 ens fona Re ne Row Relay 33 40 W Base 1D 2910 7 6 5 4 3 2 1 0 Write Row4g Row39 Row35 Row34 Row33 ABUS3 to Instrument Bus Instrument Relay 1 8 W Base 1E 3049 Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Insta Instg Insto Inst4 Instrument Relay 9 16 W Base 1 3149 Bits 7 6 5 4 3 2 1 0 Write 1156 1155 Inst44 1153 11542 Inst44 Inst4o Instg E6198B E6218A Switch Load Unit User Manual B 77 B Register Definitions Instrument Relay 17 24 W Base 20 3249 Bi
175. e Card Type Setting 02n Read Only Power On Reset State 02 Card Configuration R Base 1 This register reads back the Card Configuration The Card Configuration is determined by the user to distinguish different load configurations of the same load card type Bit 7 0 Purpose Card Configuration Setting state Read Only Undefined bits readback as all 1s Status R Base 2 This register reads back the card s status Currently the status is defined as the state of the relay timer The relay timer has two timers wire OR d together One timer is designed for the slower armature relays gt 16 ms and the second designed for the faster reed relays 2500 us The timers restart whenever the registers 6198 E6218A Switch Load Unit User Manual B 15 Register Definitions controlling the respective relays are written to or the card is reset The card remains in the busy state until both timers have timed out Bit 7 1 0 Purpose Undefined BUSY Setting all 1s state Read Only Undefined bits readback as all 1s BUSY 0 Busy 1 Ready Current Sense Select W Base 3 This register controls the current sense relays of the card Since only one current sense channel at a time per slot is allowed these channel selects are encoded This allows for none or one current sense relay to be selected Writing to this register starts the reed relay timer Bi
176. e NC24 e Load48 1 Lo ek Load48 2 i Pwr47 48 Com48 6 0 x Phantom switch for switchpath editor busload 5 106 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Card Layout Figure 5 72 shows the Agilent N9379A layout 6198 E6218A Switch Load Unit User Manual 5 107 Using Load Cards and Loads 5 Figure 5 72 Agilent N9379A Layout J9MO7 Pied eujuezze w 19M0 2 22 J9MO7 22
177. e inductive load is used with the load card Table 1 shows the reference designator for each of the flyback protection component and their respective channel Table 5 3 to CH16 flyback protection Channel Load to NO Load to NC CH1 RV33 RV34 CH2 RV35 RV36 CH3 RV37 RV38 CH4 RV39 RV40 CH5 RV41 RV42 CH6 RV43 RV44 CH7 RV45 RV46 CH8 RV47 RV48 CH9 RV49 RV50 CH10 RV51 RV52 CH11 RV53 RV54 CH12 RV55 RV56 CH13 RV57 RV58 CH14 RV59 RV60 CH15 RV61 RV62 CH16 RV63 RV64 Protection Devices Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RTx or RTy 2 required per load 1 at NC and 1 at NO provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card 6198 6218 Switch Load Unit User Manual 5 75 5 Using Load Cards and Loads Figure 5 49 Typical Agilent U7179A Load Card Flyback Protection Circuit NC High Side 50mo Driver WW oe o gt NO 16V RTx NC 50mQ L R o ANC 0 4 D Internal NO nterna Load Protection Ry Be Typical small MOV 3mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000 mS 0 90 Joules watt seconds
178. e like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met WARNING WARNING notice denotes hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met General Safety Information This product is provided with a protective earth terminal The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions WARNING DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the product in the presence of flammable gases or flames E6198B E6218A Switch Load Unit User Manual 2 3 2 2 4 Safety and Regulatory Information DO NOT REMOVE RACK PANELS OR INSTRUMENT COVERS Operating personnel must not remove any rack panels or instrument covers Component replacement and internal adjustments must be made only by qualified service personnel Products that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by a qualified service personnel The protection provided by the Agilent TS 5000 system may be impaired if the system is used
179. e of the relay timer The relay timer has two timers wire OR d together One timer is designed for the slower armature relays gt 8 ms and the second designed for the faster reed relays 75500 us The timers restart whenever the registers E6198B E6218A Switch Load Unit User Manual B 23 B 24 Register Definitions controlling the respective relays are written to or the card is reset The card remains in the busy state until both timers have timed out Bit 7 1 0 Purpose Undefined BUSY Setting all is 1s state Read Only Undefined bits readback as all 1s BUSY 0 Busy 1 Ready Current Sense Select W Base 3h This register controls the current sense relays of the card Since only one current sense channel at a time per slot is allowed these channel selects are encoded This allows for none or one current sense relay to be selected Writing to this register starts the reed relay timer Bit 7 6 5 0 Purpose Undefined Sense Select Setting X Select No Write Only Undefined bits are not used e Valid current sense selection values are 0000015 0110005 Selecting values 0000005 or 0110015 1111115 will NOT select current sensing for any channel 0000015 corresponds to current sense select on channel 1 000010 corresponds to current sense select on channel 2 001101 corresponds to current sense select on channel 13 0100005 corresponds to current sense s
180. e power supply components Both Connector J1 and Capacitor C507 are loaded at the factory Capacitor C507 is to minimize high frequency noise on the supply line The auxiliary supply output Spare Supply appears on Switch Load Unit connector J102 pin 79 Figure 4 2 Component Location Schematic for User Installed External Power Supply RT505 700m HP 0837 0440 2 V 24V To J102 1 13 Raytheon P N l C507 SMD100or 10042 equivalent SOV SS ve Polarity HP 0180 3334 We For SLU Standalone option you can connect to the Spare Supply Input directly from SLU rear See Figure 4 3 Figure 4 3 Spare Supply Input Connector SLU rear SLU standalone E6198B E6218A Switch Load Unit User Manual 4 5 4 Configuring the Switch Load Unit Configuring the Power Busses 4 6 The UUT power supplies are connected to the power busses PB1 PB4 Figure 4 4 shows the power bus connectors J801 and J802 located on the Switch Load Unit backplane for integrated option These connectors use screw terminations for high current The J801 connectors are shorted on board providing a common connection for up to three supplies Example A and B below show the two most common ways of configuring the power busses Figure 4 4 Power Bus Connectors J801 and J802 PC Board Traces A PB1 PB2 4 The following examples and B show the two most common ways of configuring the power busses Example A shows three s
181. ected together on the PC board When connecting high current gt 3 amp loads wire across all three pins in each row of CN1 CN2 see Figure 5 24 This ensures current sharing across all pins and prevents premature pin failure from excessive current flow CAUTION Connecting high current gt 4 amp loads without wiring across all three pins in the row can cause premature pin failure Figure 5 24 Agilent E6176A Current Sharing Example CN1 Connector CN2 Connector Wiring Terminal View Wiring Terminal View Load 15 5 34 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 External Load Mounting Options Loads typically consist of real devices injectors actuators etc that cannot be mounted on the load card If cable resistance is a significant factor such as for low form factor or low value resistive loads one solution is to mount the loads on a metal plate that fits into the SLU slots adjacent to the load card Figure 5 25 Follow these guidelines if you choose to mount the loads externally Mount the loads as close to the load card as possible The dimensions of the load plate for the 16 channel card are Height 23 32 cm 9 18 in Length Max 34 00 cm 13 386 in Thickness 1 59 mm 1 16 in Arrange the loads so that the lowest impedances have the shortest cable runs Route cable runs to the externally mounted loads so that you can remove other cards without havin
182. ed to connect the Isense and Isense signals 6198 E6218A Switch Load Unit User Manual Repair Information Figure C 1 Agilent E6175A Component Locator Rear View 0490 1517 5000 10 0490 1839 5000 10 Note 2500 loaded De energized Position Su Channel 1 Flyback Protection i DES SiS Channel 1 Isense Resistor N Load Configuration DES Power E Configuration ID E un 1 v TK PwrSw1 IE F1 Chan1 1 Isense CHI 77 K41 C K42 K4 PwrSw2 EJ TI F2 Chan2 Note Isense K6 K43 oe r3 Relay pattern K7 mE repeats K8 co Chan3 PwrSw3 M K46 calle Ea NO 6 J5 Ico 7 o K48 PwrSw5 ca F6 Chan5 J12 0000 00000000 0000 SE K49 oe K50 am 05 PwrSw6 Chan6 K15 uoc NOR ONERE LM UE K16 K51 Co F8 K52 Rmo 15131197 5 331 PwrSw8 PwrSw7 Chan8 Chan7 00000000 0000 0000 55 K53 K56 K54 NC JM Jo 8 Channel 9 Flyback Protection PwrSw9 PwrSw10 Chan9 Chan10 E1 K57 K59 K58 K60 PwrSw11 F9 Chan
183. eet Metal Load Mounting Area ESD Protection Selecting a Power Supply Configuration Each channel pair connects to the power bus via a Form C SPDT single pole double throw relay This relay has an NO normally open and an NC normally closed terminal Each NO terminal is connected to a pin on J3 and each NC terminal is connected to a pin on J4 Each pin on J3 or J4 can be connected to any of the four power bus lines on J5 via jumper wires This arrangement allows convenient pull up or pull down of the various inputs It also allows for terminating a UUT load at a different voltage than ground 6198 E6218A Switch Load Unit User Manual 5 9 5 Using Load Cards and Loads The factory default is to provide two jumper combs one that ties all the pins on J3 together and one that ties all the pins on J4 together The NO pins are jumpered to power bus 2 and the NC pins are jumpered to power bus 1 The jumper combs for J3 and J4 can be easily cut to provide bus or pin isolation between the various input power bus connections For example if you use one of the channel pairs in a bridge configuration you would probably disconnect that channel from the J4 jumper comb to eliminate possible power bus interaction Selecting a Current Sense Method There are two ways to measure current on the Agilent E6175A 8 Channel Load Card using a sense resistor or using a LA 25 NP current transducer from LEM Inc Figure 5 5 shows the relationship b
184. efault setting for J3 is Local Table 3 9 Switch Load Unit J3 Pinout LOC S1 PB2 REM S2 LOC S3 PB4 REM S4 LOC S1 REM S1 LOC S2 PB3 REM S3 LOC S4 PB1 3 20 E6198B E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Cards 3 T1 T14 SLU Logic Power Supply Connector T1 T14 provides the required 5 V and 12 V for powering the backplane and Load Cards Table 3 10 lists each jumper and its corresponding input voltage Table 3 10 Power Supply Input for each Jumpers Jumper Input Voltage 5V T2 5V T3 5V T4 12V T5 12 V T6 12 V T7 12 V T8 GND T9 GND T10 GND T11 GND T12 GND T13 GND T14 GND E6198B E6218A Switch Load Unit User Manual 3 21 J Switch Load Unit and Plug In Cards Differentiating E6198B Standalone Option and System Integrated Option The key differences between the standalone and system integrated option can be found at the SLU rear cover On a standalone unit the backplane connectors are extended to the breakout board attached to the SLU rear cover At the SLU rear you will find toggle switches for SLU configuration and power and sense buses connectors protected by a cable enclosure See Figure 3 11 On a system integrated unit you will find cut outs on the SLU rear cover to allow cable routing from the SLU backplane Jumpers are used for SLU configuration Figure 3 11 Swi
185. egister controls the power selection relays for channels 10 and 9 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K408 K407 K406 K405 K404 K403 K402 K401 Chan10 4 Chan10 3 Chan10 2 Chan10 1 Chan9 4 Chan9 3 Chan9 2 9 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 11 amp 12 W Base B This register controls the power selection relays for channels 12 and 11 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K416 K415 K414 K413 K412 K411 K410 K409Cha Chan12 4 Chan12 3 Chan12 2 12 1 11 4 11 3 11 2 n11 1 Setting state state state state state state state state B 46 Write Only State 1 closed open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Load Select 13 amp 14 Base This register controls the power selection relays for channels 14 and 13 with four possible loads on each channel Register Definitions Bit 7 6 5 4 3 2 1 0 Purpose K508 K507 K506 K505 K504 K503 K502 K501 14 4 14 3 14 2 14 1 Chan13 4 Chan13 3 Chan13 2 Chan13 1 Setting state state sta
186. elay is used Contact Resistance As relays wear out contact resistance increases For the E8792A 32 Pin Matrix Card the total resistance measured through an external instrument connector to an analog bus connector is less than 1Q mostly trace resistance An increase of 1 2Qs indicates relay deterioration Stability of Contact Resistance The stability of contact resistance decreases with age Measure the contact resistance several 5 10 times and note the variance Increased variance indicates deteriorating performance E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications Number of Operations If you know the applied load and life specifications for a load you can replace relays after a predetermined number of contact closures The expected life of the relays range from 1x10 operations at full load to 1x10 operations for mechanical end of life no load Replacement Strategy The best strategy depends on your application Replace individual relays if they are used more often or at higher loads than others If all the relays see similar loads and switching frequencies the entire circuit board can be replaced as end of relay life approaches Weigh the sensitivity of the application against the cost of replacing relays with some useful life remaining Relays that wear out normally or fail due to misuse should not be considered defective and are not covered by the product s warranty 6198
187. elease time Peak voltage to Earth Load carry current Load switching current Power dissipation individual load mounted on load card Average power for loads mounted on load card Relay switching voltage Minimum permissible load Maximum Current Consumption 48 channels with 2 loads per channel with common on board loads 0 300 maximum Exclusive of load 0 5 O maximum Exclusive of load 4 4 msec max 10 cps maximum 60 V continuous 200 V maximum transient non switching decays to lt 60V in 200mS 2 A maximum 1 A maximum 2 Watt maximum each load 20 Watts maximum total per card 30 V DC maximum 10 uA 10 mV DC 03Aat5V 1 4 at 12 V A 12 E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications Agilent E8792A and E8793A Specifications Instrument Multiplexer Agilent E8792A Only Parameter Specification Number of Analog Instrument Channels Analog Channel 16 Voltage Max 200 volts Resistance 1 Unbalanced Bandwidth 10 MHz Minimum Balanced Pair Bandwidth 5 MHz Minimum General Specifications Agilent E8792A and E8793A Parameter Specification Power Requirements Capacitance DUT pin to UUT Common Resistance Pin channel voltage No of concurrent analog channels Operating temperature Operating humidity Maximum Current Consumption Voltage 5 Open channel 100 pF Closed channel 300 pF DUT p
188. elect on channel 16 0000005 or gt 0110005 no current sense relays selected E6198B E6218A Switch Load Unit User Manual Register Definitions Example Setting the current sense register to 0001102 selects channel six Therefore relays K59 and K60 would be closed Power On Reset State 0 Select 0 1 2 3 4 5 6 7 8 9 10 11 12 25 63 Relays None K49 K51 K53 K55 K57 K59 K61 K63 K65 K67 K69 K71 K50 K52 K54 K56 K58 K60 K62 K64 K66 K68 K70 K72 Select 13 14 15 16 17 18 19 20 21 22 23 24 Relays K73 K75 K77 K79 K81 K83 K85 K87 K89 K91 K93 K95 K74 K76 K78 K80 K82 K84 K86 K88 K90 K92 K94 K96 Load Select 1 8 W Base 4h This register controls the Load Select switch armature relays for channels 1 8 The register uses positive logic 1 closed Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K32 K31 K30 K29 K28 K27 K26 K25 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Setting state state state state state state state state 6198 6218 Switch Load Unit User Manual Write Only State 1 closed 0 open Power On Reset State 0 Load Select 9 16 W Base 5h This register controls the Load Select switch armature relays for channels 9 16 The register uses positive
189. ement method and deriving the current in amperes via the equation I E R Duty Cycle That portion of a cycle when components are actually being used For example A component that can carry 10A with a 10 duty cycle and with a cycle equal to 1 second could carry 10A for 100ms then 0A for 900ms Flyback Protection Device Any device that controls the magnitude of positive or negative going voltage spikes on a channel Flyback Voltage The voltage surge experienced when current flow through a coil is abruptly stopped or started Form C Relay Standard terminology for Single Pole Double Throw SPDT relay contacts E6198B E6218A Switch Load Unit User Manual Glossary Of Terms A Glitch An unexpected or unplanned event or occurrence Abrupt termination of tests is usually due to a software glitch GP Acronym for General Purpose The relays on the E6177A 24 Channel Medium Current Load card can be configured as GP relays Hardware Configuration The physical and functional arrangement of the system components with respect to each other Refers to the relative placement of modules load cards in the E6185A Switch Load Unit sense and Isense The Switch Load Unit has a two line current sense bus along the Switch Load Unit backplane This Current sense bus can be broken into as many as four discrete buses by removing jumper plugs on JP1 JP2 and JP3 Current sensing is performed on any load card channel
190. eo L COM 08 1089 GOEY 00000000000000000000 LO M 2129 00000000000000000000 602 0 000000000000 LOCM 908M rogy 00000000000000000000 00000000000000000000 00000000000000000000 pue suluezzoy Jedddf 2 ouluezzoy 22 1 lt N 8061 corn Lorn LOZAN coon ON e 2108 908 908 coer 2087 094 406 Loon 2021 2091 091 T eg nrto onoo TNT RSR NANNA eLer LL8r OLler 608 808 4 906n zon Loen zoen LOsr x 5 98621 5 5 100 Using Load Cards and Loads Selecting a Power Supply Configuration Each channel connects to the power bus via a Form SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J808 J813 and each NC terminal is connected to a pin on 1802 1807 Each pin on J802 J813 can be connected to any of the four power busses on J801 via jumper wires Figure 5 66 The terminal block jumpering allows convenient pull up or pull down of the various inputs It also lets you terminate a UUT load at a different voltage than ground The factory default is to provide two jumper combs one that ties all the
191. eparate supplies attached to the busses with all three sharing a common ground on Power Bus 1 PB1 This is the factory default configuration The grounds for all three supplies are connected together on connector J801 E6198B E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Figure 4 5 Example A Three Separate Supplies on PB1 PB4 PB1 o PB2 PB3 PB4 12V 12V 5V Example B available only as a special configuration shows two isolated power supplies with separate grounds connected to the power bus This configuration can be used if for example one supply requires local sensing while the other requires remote sensing at the UUT Figure 4 6 Example B Isolated Power Supplies PB2 PB3 PB4 BATT UUT For the standalone SLU users can directly connect to the external connector DC Power Bus Connection See Figure 4 7 E6198B E6218A Switch Load Unit User Manual 4 7 4 Configuring the Switch Load Unit Figure 4 7 DC Power Bus Connector Of Standalone SLU Power Bus 1 PB Sense 1 PB Sense 2 4 8 Power Bus 2 Power Bus 3 Power Bus 4 PB Sense 3 PB Sense 4 Setting the UUT Power Supply Remote Local Sense Jumpers The UUT power supplies can be configured for either remote sense or local sense In local sense the voltage across the load equals the power supply voltage less the voltage drop across the cables between the load and power
192. er 7 D 42 1 Channel8 b lt 5 Power 8 Row2 Channel 8 b 2 1 Row 1 Power 8 A C E CN2 Connector Wiring Terminal View Even Rows Odd Rows J as e Aiea 15 Channel9 cf S1 Power 9 Row 16 Channel 9 o i Load9 H 5 i i Row 15 Ci Power9 J KY Kg L Channel10 5 Power 10 ews Channel 10 i i 13 ER H Row 13 Power 10 412 MAD Channel 1 S Power 11 Row 12 2 Channel 11 m i Row 11 ca Power 11 Channel 12 Power 1 Row 10 ca Channel 12 A Row 9 Power 12 7 K N Channel 13 Fac 11 Power 13 Row8 ca Channel 13 d Row 7 Power 13 Channel 14 4 eck 11 Power 14 Row 6 Channel 14 b SEV 5 Row5 ca Power 14 gt RAA Channel 15 Power 15 4 Channel 15 lt 0 H 4E SEV Row 3 15 5 Channel 16 d2c tmt Power 16 Row2 Channel 16 Moe 1ED Row 1 Power 16 E6198B E6218A Switch Load Unit User Manual Load 1 Load 2 Load 3 Load 4 Load 5 Load 6 Load 7 Load 8 Load 9 Load 10 Load 11 Load 12 Load 13 Load 14 Load 15 Load 16 5 33 5 Using Load Cards and Loads Current Sharing Notice in the wiring schematic Figure 5 23 that pins A C and E in each row of J1 J2 are conn
193. er E6170 61615 DAC top connector to J3 bottom connector to J4 6198 6218 Switch Load Unit User Manual 7 7 5 7 Usingthe Custom Card J3 or J4 Connector Breakouts Event Detector The Event Detector can be cabled to either J3 or J4 Figure 7 4 shows the J3 or J4 connector breakouts Connections are made to either J3 or J4 to the Agilent E6174 Event Detector Figure 7 4 or Connector Breakouts for Agilent E6174 Event Detector Pin Pin Signal Number Signal Number Gnd 64 CH31 63 Gnd 62 CH30 61 Gnd 60 CH29 59 6 C NE o Gnd 58 CH28 57 56 CH27 55 ee Gnd 54 CH26 53 J3 Breakouts 52 CH25 51 ee Gnd 50 CH24 49 se Gnd 48 CH23 47 Gnd 46 CH22 45 J3 J4 oe Gnd 44 CH21 43 os ee Gnd 42 CH20 41 s Gnd 40 CH19 39 ee Gnd 38 CH18 37 36 CH17 35 9 3 Gnd 34 CH16 33 ee Gnd 32 CH15 31 os Gnd 30 CH14 29 Gnd 28 CH13 27 J4 Breakouts Gnd 26 CH12 25 Gnd 24 CH11 23 Gnd 22 CH10 21 Gnd 20 CH9 19 Gnd 18 CH8 17 Gnd 16 CH7 15 Gnd 14 CH6 13 Gnd 12 CH5 11 10 CH4 9 Gnd 8 CH3 7 Gnd 6 CH2 5 Gnd 4 CH1 3 Gnd 2 CHO 1 Note Event Detector can be connected to J3 left breakout connections or J4 right breakout connections 7 6 6198 E6218A Switch Load Unit User Manual Using the Custom Card 7 J5 and J6 Connector Breakouts 32 Pin Matrix Cards 32 Pin Matrix
194. ers 1 3 5 13 15 or 17 Installing and Removing Mezzanine Cards The mezzanine cards are held to the load card by the friction of the connector at the top and bottom When installing a mezzanine card apply even pressure to both top and bottom connectors to ensure good contact When removing a load card you may need an appropriate prying tool to loosen the card from the connectors especially when multiple cards are installed Use the indentations on the sides of the card to loosen the card with the prying tool then grasp the card and gently rock it back and forth until it is free of the connectors E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Wiring the Mezzanine Cards Figure 5 69 shows a detailed view of the top half of a mezzanine card The physical layout of the mezzanine card is identical for the N9378A 24 channel and the N9379A 48 channel load cards However the internal wiring of the N9378A card uses the mezzanine pin arrangements differently Figure 5 69 Mezzanine Card Pinouts for N9378A 24 Channel Load Card Mezzanine card IDs 2 S 100 OO 0030 MEZZ ID Connections QOOOOOOOOOOOOOOOOOOO to load card 1 Chanx lt Chan x 1 12 J14 Pwrx OO OQ Pwr x 1 mx ns wem Chanx lt gt Chan x 1 o Com x 1 channel number 1 3 5 13 15 or 17 UUT Connections When configured as
195. etween the sense resistor Rs and the LEM module current transducer only one or the other is used never both Sense Resistors The card comes factory loaded with a 3 watt 0 05 Q 0 1 sense resistor already installed This is the lowest value sense resistor that can safely be installed If lower value currents are being measured requiring a larger resistance value to make the sense voltage readable then this sense resistor can be replaced by a four wire resistor of higher value The sense resistor should suffice for most measurements except those that require that the measurement be isolated from high common mode voltage transients Current Transducers The load card is designed to accept a LEM current transducer LEM module to be inserted in the circuit in place of the current sense resistor This module was tested with a LEM Model LA25 NP Current Transducer from LEM USA Inc 6643 West Mill Road Milwaukee WI 53218 414 353 0711 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 5 LEM Current Transducer LEM Module LA25 NP Short for LEM LEM 100Q 01 CNFG c e LEM I Out Load LEM I In Switches Chan 1 lt lt o lt Load GN 5 NO Power Switches Chan 2 lt lt o Flyback Protection Note Rs is a 4 wire resistor Installing a LEM Current Transducer Figure 5 6 shows
196. fferent load configurations of the same load card Card Type Bit 7 0 Purpose Card Configuration Setting state Read Only Undefined bits readback as all 1s Status R Base 2 This register reads back the card s status Currently the status is defined as the state of the relay timer The relay timer is designed for the armature relays gt 4ms The timer restarts 6198 E6218A Switch Load Unit User Manual B 19 Register Definitions whenever the registers controlling the respective relays are written to or the card is reset The card remains in the busy state until the timer has timed out Bit 7 1 0 Purpose Undefined BUSY Setting all 1s state Read Only Undefined bits readback as all 1s BUSY 0 Busy 1 Ready Load Select 1 8 W Base 3 This register controls the Load Select switch armature relays for channels 1 8 The register uses positive logic 1 closed Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K16 K14 K12 K10 K8 K6 K4 K2 CH 8 CH7 CH6 CH5 CH3 CH2 CH1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 9 16 W 4 This register controls the Load Select switch armature relays for channels 9 16 The register uses positive logic
197. figurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGet Info to read this register The default read back is FF but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Bit 7 6 5 4 3 2 1 0 Purpose MC3L 3 MC3L 2 MC3L 1 MC3L 0 MC3U 3 MC3U2 MC3U 1 MC3U 0 Setting state state state state state state state state Read Only Lower nibble bits 0 3 1 upper card MC3U 0 MC3U 3 Upper nibble bits 4 7 1 lower card MC3L 0 MC3L 3 Power On Reset State 1 E6198B E6218A Switch Load Unit User Manual Load Select 1 4 W Base 6 Register Definitions This register controls the power selection relays for channels 1 through 4 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K208 K207 K206 K205 K204 K203 K202 K201 Chan4 2 Chan4 1 Chan3 2 Chan3 1 Chan2 2 Chan2 1 Chan1 2 1 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 5 8 W Base 7 This register controls the power selection relays for channels 5 through 8 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K216 K215 K214 K213 K212 K211 K210 K209 Chan8 4 Chan8 3 Chan7 2 Chan7 1 Chan6 2 Chan6 1 Cha
198. fined bits read back as all 1s Unused bits for write can be either 0 or 1 does not matter For BUSY Read Only 0 Busy 1 Ready For Reset Write Only 0 no change 1 causes board reset non latched For OAR Write Only 0 no change 1 causes all relays to open non latched Mezzanine Card 1 Configuration 8 Base 3 This register reads configuration information from the 1 upper and 1 lower mezzanine cards Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGetInfo to read this register Figure B 3 shows the layout of the mezzanine cards E6198B E6218A Switch Load Unit User Manual Register Definitions B Figure B 3 Mezzanine Card Layout OOOO m Mines OOOO D 1 O 3 E C1 2 L1 rj Lower LE The default read back is FF but you can pull down bits to zero as required to create a configuration byte unique to the loads E6198B E6218A Switch Load Unit User Manual installed Bit 7 6 5 4 3 2 1 0 Purpose MC1L 3 MC1L 2 MC1L 1 MCiL 0 MC1U 3 MC1U2 MC1U 1 MC1U 0 Setting state state state state state state state state Read Only Lower nibb
199. g current 2 A maximum Relay switching voltage 60 Vdc maximum Minimum permisissible load 10 uA 10 mV DC Basic current sense accuracy with standard 0 05 Q 0 1 maximum sense resistor 1 Exclusive of load with standard 0 050 sense resistor and 10A slo blo fuse installed 50 for load currents lt 0 1A A 6 6198 E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications A Agilent E6178B 8 Channel Heavy Duty Load Card Specifications Parameter Specification Path resistance from power bus to load card connect Load path relay operate release time Peak Voltage to Earth Load Carry Current continuous Load Transient Peak Current non switched Load Transient Peak Current switched Power Bus Carry Current continuous Load Switching Power Load Switching Voltage Current Sense Accuracy Cycle Lifetime Relay Mechanical Cycle Lifetime Relay at rated power Auxiliary Relay Drive Requirements via P3 Factory Installed Fuse Maximum Current Consumption 0 030 typical 0 075 maximum Exclusive of load with factory installed fuse 15 10 msec typical 20 cps max w o load 6 cpm max w rated load 60 V continuous 500 V maximum transient non switching delays to 60V in 200mS 30 A maximum 200 A maximum 100 mS 296 duty cycle Exclusive of load with factory installed fuse 120 A maximum 10 mS 14 Vdc resistive 30 A maximum 500 W max 2bVdc max resisti
200. g to disconnect any wiring Clearly identify all cables to externally mounted loads including those on a load plate Use labels numbers color coding or some combination of these methods Cabling to polarity sensitive devices should be labeled appropriately 6198 E6218A Switch Load Unit User Manual 5 35 5 Using Load Cards and Loads Figure 5 25 Example Load Plate with Loads UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 Figure 5 26 is a simplified load card schematic and CN2 connector pinout showing the details Each row of CN2 represents a single load card channel The three pins in each row are connected together on the PC board for current sharing When making UUT connections wire across all three pins in each row This ensures current sharing across all pins and prevents premature pin failure from excessive current flow 6198 E6218A Switch Load Unit User Manual Figure 5 26 Agilent E6176A CN2 Connector Pinouts
201. gh 32 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K516 K515 K514 K513 K512 K511 K510 K509 Chan32 2 Chan32 1 Chan31 2 Chan31 1 Chan30 2 Chan30 1 Chan29 2 Chan29 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 B 58 E6198B E6218A Switch Load Unit User Manual Load Select 33 36 W Base E Register Definitions This register controls the power selection relays for channels 33 through 36 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K608 K607 K606 K605 K604 K603 K602 K601 Chan36 2 Chan36 1 Chan35 2 Chan35 1 Chan34 2 Chan34 1 Chan33 2 Chan33 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 37 40 W Base F This register controls the power selection relays for channels 37 through 40 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K616 K615 K614 K613 K612 K611 K610 K609 Chan40 2 Chan40 1 Chan39 2 Chan39 1 Chan38 2 Chan38 1 Chan37 2 Chan37 1 Setting state state state state state state state state E6198B E6218A Switch Load Unit User Manual Write Only State 1 closed open Power On Reset State 0 B 59 Register Definition
202. gister starts the reed relay timer Bit 7 3 2 0 Purpose Undefined Sense Select Setting X Channel 5 Write Only Undefined bits are not used Select 0015 1005 valid selects 0005 or 1015 1115 unselected 0015 corresponds to current sense select on channels 1 and 2 010 corresponds to current sense select on channels and 4 011 corresponds to current sense select on channels 5 and 6 1005 corresponds to current sense select on channels 7 and 8 0005 or gt 1005 means no current sense relay selected Example Setting the current sense register to 1002 selects the fourth pair of channels channels 7 and 8 Therefore relays K7 and K8 would be closed Power On Reset State 0 Select Value 0 5 7 1 001 2 010 3 011 4 100 Relays none K1 K2 4 K5 K6 Channels None 1 2 3 4 5 6 7 8 6198 E6218A Switch Load Unit User Manual B 13 Register Definitions Load Select W Base 4 This register controls the Load Select switch armature relays of the card one per channel The register uses positive logic 1 closed Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K43 K42 K33 K32 K23 K22 K13 K12 CH 8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Setting state state state state state state state state Write On
203. grading the accuracy of measurements Besides the matrix of relays there are switched auxiliary I O lines AUX connected to each of the rows These ports are for digital I O operations or other user defined applications For example you can close any of these auxiliary relays to connect a digital sensing source or other low impedance system resource such an event detector or digital input card to a pin on the UUT Because these auxiliary inputs are available on any of the rows and on Pin Matrix Card connectors J2 and P2 many inputs can be connected at once Additional features include an integrated relay timer the ability to open all relays with a single bit and series protection resistors that can be bypassed programmatically These features are individually described in the following paragraphs starting on page 6 21 6198 E6218A Switch Load Unit User Manual Figure 6 12 Agilent E8782A Detailed Block Diagram im 1 1 T d 96 Pin DIN C To Instrument 160 Pin DIN C Rear Aux Access 6198 E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 96 Pin DIN C Backplane Access To Switch Load Unit Decoding and Driver Circuits 160 Pin DIN C Row Aux amp UUT P2 Common To UUT Matrix Relay Detail Column 6 19 6 Using the Pin Matrix Cards Figure 6 13 Agilent E8783A Detailed Block Diagram
204. gure 5 37 Agilent U7177A Load Wiring Schematic and CN1 Pinouts CN1 Connector Wiring Terminal View Even Rows Odd Rows CN1 J1 BAL aS Channel 1 116 15 4 Power 1 Row 16 Channeli Load 1 50 4E 15ER 4 Row 15 ca Power 1 2 BAL 2 1306 S Power 2 Row 14 ca Channel 2 Load2 coo emet k A Soleus UD Channel 3 1 cfs i 4 Power 3 Row 12 Channela Load 3 12 i Row 11 ca Power 3 10A Channel4 gt hoc oci 4 Power4 Row 10 Channel4 Load 4 10 d Row 9 Lr Power 4 D Channel5 Sac 4 5 Row 8 Channels cad 5 b 7 Row 7 Power 5 6A Channel6 5 Power 6 Row6 Channel 6 Load 6 ds seb Row 5 Power 6 D BAL d Channel 7 4C 3ct 4 Power Rew m Load 7 A Row 3 ca Power 7 i 2A 1 Channel8 gt ich Power8 dida Load 8 D 2E 2 Row 1 Power 8 A C E CN2 Connector Wiring Terminal View Even Rows Odd Rows J1 CN2 CN2 J1 b dA d a Channel9 disc 9 Row 16 ca Channel 9 Load 9 i 15 1 Row 15 ca Power 9 d Channel10 Bee cR Power 107 Row 14 Channel 10 Load 10 i 14E 13E Row 13 Power 10 SS i 11 40224 Power 11 Row12 Channeli L
205. hannel 1 Flyback Protection Power Bus Configuration Channel 1 Isense Resistor J5 J6 J7 NO J4 K11 oooo loooolooooloooo K49 K12 K13 0000 0000 0000 0000 J12 amr oo K51 K15 Channel 2 4 6 8 10 12 14 16 515 135 7 9 111315 53 55 000000000 000 0000 Channel 9 Flyback Prot J8 9 ection J10 NC Co K56 K K60 K58 K62 F9 E EB F11 K66 F42 ke F3 F5 K72 F16 Channel 9 Isense Resistor 2 E16 Electro Static Discharge ESD Protection Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J4 J7 and each NC terminal is connected to a pin on J8 J11 Each pin on J8 J11 can be connected to any of the four power bus lines on J12 via jumper wires See Figure 5 27 The terminal block jumper allows convenient connection of pull up or pull down voltages to the various inputs It also allows for terminating a UUT load at a different voltage than
206. he Agilent U7179A 16 Channel High Current Load Card is shown in Figure 5 47 The load card layout is shown in Figure 5 48 The card is two slots wide Card Location Recommendations The card type is 20h Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration The factory default is to load a 0 005 Q 1 Isense resistor in each channel Selecting a Current Sense Resistor Value The flyback protection is connected from both the normally open NO and normally closed NC power switch connections Selecting and Loading Flyback Protection Loads are mounted externally and interface to the card using two load connectors J1 and J2 Connecting Loads 6198 E6218A Switch Load Unit User Manual 5 71 5 Using Load Cards and Loads Figure 5 47 Agilent U7179A 16 Channel High Current Load Card Block Diagram Mother Board Interface 93 Configuration Connector 1800 AM Current Sense UUT External TN ISense 1800 Control Loads Load Mount Protecti P2 Switches Loads wi Address cH Rs Relay Timer Dat Chan 1 o Load 1 lt Ug AA PwrSw1 Relay Slot ata n NC1 Decode Logic Load1 LdSense 1 LdSense 1 tr Power 5 12 1 1 PwrSw2 1 1
207. hen power is re applied Current Sense The Isense and Isense lines sense current on a selected load card channel They connect to the current sense bus on the SLU backplane Current sense lines of each channel are multiplexed Only one channel can connect to the current sense bus at one time Power Bus Sense Power Bus Sense lines 1 4 remotely sense power supplies connected to power buses 1 4 This sensing compensates the losses in the system wiring to ensure that the set voltage is applied to the sense point Switch Load Unit Block Diagram Figure 3 5 shows a block diagram of the SLU All plug in cards are optional so your system will have a different mix of cards from that shown here The Test System Interface or Mass Interconnect are also optional you can also interface directly to the Switch Load Unit See Chapter 4 for details 6198 E6218A Switch Load Unit User Manual 3 7 J Switch Load Unit and Plug In Cards Figure 3 5 Switch Load Unit Block Diagram Power Supply 1 Agilent E6198B Switch Load Unit Load Card 1 Power Supply 2 Pin Matrix Card 1 Power Supply 3 Power Bus Custom Card Digital In Power Bus Sense Isense c e g m Switch L
208. i Switches Loads NO 1 Pwr1 Chan 1 PWSW Power Bus Common NC 1 lt Configured for General Purpose switching NO 1 Chan 1 0 EMT PwrSw1 NC 1 Common Neither side of the power supply should be attached to J9 Power Bus Connecting Loads Loads are mounted on the Agilent E6177A s sheet metal mounting area The loads are wired to connector CN1 which mates to the Agilent E6177A s J1 connector Figure 5 30 shows the Agilent E6177A s load mounting area and connectors J1 and CN1 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 30 Agilent E6177A Load Mounting Area and CN1 J1 Connectors Load Mounting Area 0000 5 orn oo orn oo orn oo on oo oo oo on oo jm v v bd gt on oo E orn oo 6 Ej 5 9 x v orn oo oo 1 oo orn oo TDI on on oo i oo oo I 515 ms p on oo oo oo oo orn oo oo oo CN1 11 6198 E6218A Switch Load Unit User Manual 5 43 5 Using Load Cards and Load
209. in failure from the excessive current flow CAUTION Connecting high current gt 2 amp loads without wiring across all five pins in the row can cause premature pin failure Figure 5 64 Agilent N9377A Current Sharing Example J1 Connector 9j Wiring Terminal View Row 32 Load 1 1 2 OO OOO OOO OOO OOO OOO OOO OOO OOO OOO Load 1 2 External Load Mounting Options As with the E6176A 16 channel load card you can mount the loads externally on a metal plate that fits into the SLU slots adjacent to the load card For guidelines on mounting loads externally see External Load Mounting Options 6198 E6218A Switch Load Unit User Manual 5 95 5 5 96 Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 The pinouts are the same as for the E6176A 16 channel load card See UUT Connections for details 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent N9378A 24 Channel Low Resistance Load Card The Agilent N9378A 24 channel high density load card is designed to work with loads mounted on mezzanine ca
210. in to auxiliary input 1 Max DUT pin to analog bus connector 1 Q Max with 200 Q protection resistor bypassed 200 volts 4 0 to 40 C 80 Relative Humidity 0 to 40 C 2 9 A at 5 V for E8792A 2 A at 5 V E8793A 6198 E6218A Switch Load Unit User Manual A 13 A Switch Load Unit And Card Specifications Relay Characteristics Agilent E8792A and E8793A Parameter Specification Type Dry reed Switching Speed Close 500 ms Open 400 ms Switching Characteristics 1 0 A carry 0 5 A while switching 7 5 Volt Amps max instantaneous switching Other Relay Parameters 300 VDC Standoff voltage 200 VDC Switching voltage A 14 E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications Agilent E8782A and E8783A Specifications Instrument Multiplexer Agilent E8782A Only Parameter Specification Number of Analog Instrument Channels Analog Channel 24 Voltage Max 200 volts Resistance lt 10 Unbalanced Pair Bandwidth 10MHz Minimum Balanced Pair Bandwidth 5 MHz Minimum General Specifications Agilent E8782A and E8783A Parameter Specification Power Requirements Voltage 5 Capacitance DUT pin to UUT Common Open channel 100 pF Closed channel 300 pF Resistance DUT pin to auxiliary input 1 Max DUT pin to analog bus connector 10 Max with 200 Q protection resistor bypassed Pin channe
211. int for another current sense element so that you can replace the factory provided resistor with one selected for your specific UUT Be sure to size the power dissipation of the sense resistor large enough to handle the expected current of the load Selecting a Load Fuse CAUTION The load fuses used are IEC 5x20 millimeter 5 amp slow blow These fuses may be replaced by fuses with a higher value but not to exceed 8 amps The maximum fuse rating must not exceed an 12 value of 102 126 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 1 The figure is an industry standard term For example if a fuse with a rating of Pres 100 experiences a current surge of 10A it can maintain that current for 1 second before its capacity is exceeded 10A 10A 1 Second 100 Selecting and Loading Flyback Protection Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant except to provide backup protection in case you test a defective UUT If flyback protection devices are required you are responsible for installing them on the load cards CAUTION The load cards are designed for a maximum of 500 flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages i
212. iplex load example 2 Figure 5 11 middle a single load is shared by three load switches and may be configured as either a pull up or pull down through jumpers to J3 or J4 to J5 The solder in jumpers are installed by the system integrator to allow the sharing of a load The multiplexed load switches may be closed individually or in tandem as required to perform the test In the PNP pull down example 3 Figure 5 11 middle power switch three PwrSw3 in its normally closed state supplies a switched ground to the PNP transistor The positive source to the transistor is assumed to be switched through another load card to the UUT In bridge load example 4 Figure 5 11 bottom both load switches and power switch four PwrSw4 through the bridge configuration jumper J7 provide a sensed current path for pin to pin loads on the UUT Each channel pair 1 4 is shown The PT figure is an industry standard term If for example a fuse with a rating of PT 100 experiences a current surge of 10A it can maintain that current for 1 second before its capacity is exceeded 10A 10A 1 Second 100 E6198B E6218A Switch Load Unit User Manual 5 17 5 Using Load Cards and Loads by J6 1 J6 2 J7 3 and J7 4 Both the power source and return are assumed to be switched through another load card to the UUT Figure 5 11 Agilent E6175A Load Examples
213. ise and 1000mS to 50 decay of peak value i 8 20mS refers to a standard pulse of 8mS rise and 20mS to 50 decay of peak value 5 16 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Selecting a Load Fuse The load fuses used are IEC 5x20 mm 5 ampere slow blow These fuses may be replaced by larger fuses if required by your equipment but not to exceed 8 amperes In any event the maximum fuse rating must not exceed an value of 102 126 Sample Load Configurations Four sets of tandem loads each set sharing a current sense resistor may be mounted on the Agilent E6175A Load Card You may need to drill holes in the sheet metal to attach the loads On the eight channel load card the pairs are labeled 1 through 4 on the PC board silkscreen For example the load card could be configured to supply a power source and power ground to a module and measure the total current consumed by the module Figure 5 3 shows four other examples of how loads could be configured In the NPN Pull up example 1 Figure 5 11 top power switch one PwrSw1 in its normally closed state supplies power to the first load When the load switch connected to the NPN transistor output driver is closed the current can be sensed at the external DMM when the corresponding Isense MUX relays are closed The ground return in this example is assumed to be switched through another load card or connected directly to the UUT In the mult
214. ister starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K824 K823 K822 K821 K820 K819 K818 K817 Pwr24 Pwr23 Pwr22 Pwr21 Pwr20 Pwr19 Pwr18 Pwr17 Setting state state state state state state state state Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Agilent N9379A 48 Channel High Density Load Card The Agilent N9379A high density load card provides 48 channels with two loads per channel It is not equipped for current sensing and does not provide flyback voltage protection It provides an output relay in a general purpose configuration Loads are mounted onboard on a series of mezzanine cards that E6198B E6218A Switch Load Unit User Manual Register Definitions plug into the load card You can attach as many as two loads per channel See Using the Agilent N9379A 48 Channel High Density Load Card for a block diagram and more information Unless otherwise noted writing a 1 closes energizes a relay and writing a 0 opens de energizes the relay The reset and power on state for all relays is open Card Type R Base 0 This register reads back the card type of the card The N9379A is uniquely identified by card 06 Bit 7 6 5 4 3 2 1 0 Purpose Card Card Card Card Card Card Card Card Type Type Type Type Type Type Type
215. itch Load Unit User Manual 5 25 5 Using Load Cards and Loads Figure 5 17 Agilent E6176A 16 Channel High Current Load Card Block Diagram Mother Board Interface Configuration Connector 1800 AAA Current Sense UUT External ISense 1800 Gontro Loads Load Mount Protecti P2 Switches Loads 1 PB1 Address NO1 Relay Timer Chan 1 se 7 PwrSw1 Relay Slot NC1 Decode Logic Load1 LdSense 1 LdSense 1 1 1 1 I 1 I 1 ISense l ISense PwrSw2 1 a 1 I 1 1 1 1 Chan 2 lt lt lt Load 2 amp NC2 Load2 LdSense 2 LdSense 2 Flyback Protection dp Md ee GPIB i J4 37 NO 1 J1 even rows J1 odd rows PS 1 Z 1 1 1 1 e 1 2 5 2 1 I e Z 1 1 P 1 1 _ PS 3 1 1 I NC ius ISense l Sense 1 PB16 Rs vos Chan 16 lt o 16 PwrSw16 77 1 NC16 Load16 LdSense 16 LdSense 16 5 26 J2 even rows J2 odd rows Flyback Protection E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 18 Agilent E6176A 16 Channel Load Card Layout r Card Configuration ID C
216. l voltage 200 volts No of concurrent analog channels 4 Operating temperature 0 to 40 C Operating humidity 80 Relative Humidity 0 to 40 C Maximum Current Consumption 3Aat5V E6198B E6218A Switch Load Unit User Manual A 15 A Switch Load Unit And Card Specifications Relay Characteristics Agilent E8782A and E8783A Parameter Specification Type Dry reed Switching Speed Close 500 us Open 300 us Switching Characteristics 1 0A carry 0 5A while switching 200VDC Switching voltage Life Time No load 1x108 operations Full load 1x10 operations Relay Life Electromechanical relays are subject to normal wear out Relay life depends on several factors including loading and switching frequency Relay Load Higher power switching capacitive inductive loads and high inrush currents e g turning on a lamp or starting a motor reduces relay life Exceeding specified maximum inputs can cause catastrophic failures Switching Frequency Relay contacts heat when switched As switching frequency increases the contacts have less time to dissipate heat The resulting increase in contact temperature reduces relay life End of Life Detection A 16 Use preventative maintenance routine to reduce problems caused by relay failure Use the methods below to determine when a relay may be near failure The best method or combination of methods and the failure criteria depend on the application in which the r
217. lay timer Reset Bit 0 in the Control Register programmatically resets the card Resetting the card clears all internal registers which resets all board functionality to its default power up state Resetting also clears all relay registers sets column disconnect relay control to automatic mode and starts the relay timer E6198B E6218A Switch Load Unit User Manual 6 7 6 Using the Pin Matrix Cards Protection Bypass CAUTION Each of the four columns has a 200 ohm protection resistor connected in series which protects the relays by limiting the maximum current through the column Some measurements such as 2 wire resistance may require bypassing shorting across the protection resistor to remove its effects The default state is to have the protection bypass relays open which means the series protection resistors are in circuit Bits 7 4 in the ABus Control amp Protection Bypass Register described in Appendix B control the relays used to bypass the series protection resistors You can bypass the protection on a column by column basis To prevent damage to card bypass the protection resistors only when absolutely necessary Figure 6 4 Column Disconnect and Protection Bypass Relays Column n Reset State Bypass Relay on Abus Disconnect 2000 Relay The card resets to its default state whenever Operating power is first applied Operating power is removed and then reapplied
218. lays for channels 9 16 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected depend upon how the card is configured by the user Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K71 K69 K67 K65 K63 K61 K59 K57 CH 16 CH 15 CH 14 CH 13 CH 12 CH 11 CH 10 CH9 Setting state state state state state state state state Write Only State 1 NO shorted to COM NC open 0 NC shorted to COM NO open Power On Reset State 0 B 18 E6198B E6218A Switch Load Unit User Manual Register Definitions B Agilent E6177A 24 Channel Medium Current Load Card The Agilent E6177A Load Card is a load card for moderate current loads mounted on a sheet metal panel attached to the load card The card provides pull up down selection Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent E6177A 24 Channel Load Card for more information Register definitions for the card follow Card Type R Base 0 This register reads back the Card Type 034 of the card Bit 7 0 Purpose Card Type Setting 03 Read Only Power On Reset State 034 Card Configuration R Base 1 This register reads back the Card Configuration The Card Configuration is determined by the user to distinguish di
219. le bits 0 3 1 upper card MC1U 0 MC1U 3 Upper nibble bits 4 7 1 lower card MC1L 0 MCIL 3 Power On Reset State 1 Mezzanine Card 2 Configuration R Base 4 This register reads configuration information from the 2 upper and 2 lower mezzanine cards See Figure B 3 for a picture of the mezzanine card layout B 53 B 54 Register Definitions Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGetInfo to read this register The default read back is but you can pull down bits to zero as required to create a configuration byte unique to the loads installed Bit 7 6 5 4 3 2 1 0 Purpose MC2L 3 MC2L 2 MC2L 1 MC2L 0 MC2U 3 MC2U 2 MC2U 1 MC2U 0 Setting state state state state state state state state Read Only Lower nibble bits 0 3 1 upper card MC2U 0 MC2U 3 Upper nibble bits 4 7 1 lower card MC2L 0 MC2L 3 Power On Reset State 1 Mezzanine Card 3 Configuration 8 Base 5 This register reads configuration information from the 3 upper and 3 lower mezzanine cards See Figure B 3 for a picture of the mezzanine card layout Card configuration is determined by the user to distinguish different load con
220. left side slots 1 4 of the Agilent E6198B Switch Load Unit enclosure closest to the incoming power buses Card Location Recommendations The card type is 01 Load Card Type and Configuration ID The factory default is to load a 0 05Q 0 1 Isense resistor in each channel If you prefer to use a current transducer you must remove the Isense resistor and add the current transducer described in Selecting a Current Sense Method nine inch by four inch area of sheet metal is left open on the front of the card for mounting loads You provide the load mounting hardware drilling holes in the sheet metal as needed Connecting Loads Each channel is capable of up to 7 5 amperes continuous carry current or up to 15 amperes with a two percent duty cycle There is a slow blow fuse on each channel to protect the card traces against extended high current operation 6198 E6218A Switch Load Unit User Manual 5 7 5 Using Load Cards and Loads Figure 5 3 Agilent E6175A 8 Channel High Current Load Card Block Diagram Mother Board Interface 02 Configuration J2 4800 Connector Sheet WWW Current Sense UUT Metal Control Loads Load Mounted ISense Sense 1800 2 Switches Loads Protection LdSense 182 LdSense 1 amp 2 Address Chan 1 o vo Load 1 lt
221. lent Agilent Agilent E8783A 2 E8783A 1 E8782A Abus Connection Cables 6198 E6218A Switch Load Unit User Manual 6 29 6 Using the Pin Matrix Cards THIS PAGE IS INTENTIONALLY LEFT BLANK 6 30 E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual 7 Using the Custom Card General Purpose Breadboard 7 2 TS 5430 Series Emulation 7 2 Connector Breakouts 7 4 E8794A Components and Schematics 7 8 The Agilent E8794A Custom Card provides a general purpose breadboard card for system integrators to add custom circuitry The card can also emulate the Agilent TS 5430 Series I This chapter describes how to configure and use the E8794A Register descriptions for the custom card are located in Appendix B of this manual RE Agilent Technologies P 7 Usingthe Custom Card General Purpose Breadboard The custom card contains a breadboard area of through holes on 0 1 centers for soldering custom circuitry see Figure 7 1 TS 5430 Series Emulation Digital 1 0 7 2 The E8794A may be used to provide routing and breadboard support similar to that found on the Agilent TS 5430 Personality Board Digital I O matrix Aux channels routing area and ICA interface connections that were found on the TS 5430 Personality Board are also found on the E8794A 64 Aux Channels from up to two 32 Pin Matrix Cards 8 system DAC channels 32 event detector channels In addition
222. load card wiring 5 70 Figure 5 47 Agilent U7179A 16 Channel High Current Load Card Block Diagram 5 72 Figure 5 48 Agilent U7179A 16 Channel Load Card Layout 5 73 Figure 5 49 Typical Agilent U7179A Load Card Flyback Protection Circuit 5 76 Figure 5 50 Agilent U7179A Connectors J1 J2 and Mating Connectors 2 5 77 Figure 5 51 Agilent U7179A Load Wiring Schematic CN1 CN2 Pinouts 5 78 Figure 5 52 Agilent U7179A Current Sharing Example 5 79 Figure 5 53 Example Load Plate with loads 5 80 Figure 5 54 Agilent U7179A CN2 Connector Pinouts 5 82 Figure 5 55 Agilent N9377A 16 Channel Dual Load Load Card Block Diagram 5 84 Figure 5 56 N9377A 16 Channel Load Card Layout 5 85 Figure 5 57 N9377A Load Card Flyback Locator and Polarity Orientation 5 87 Figure 5 58 N9377A Load Card Flyback Circuit Detail 5 88 Figure 5 59 Typical Agilent N9377A Load Card Flyback Protection Circuit 5 89 Figure 5 60 Agilent N9377A Connectors J1 J2 and Mating Connectors J1 J2 5 90 Figure 5 61 N9377A Load Wiring Schematic 5 92 Figure 5 62 J1 and J2 Connector Layout 5 93 Figure 5 63 Agilent N9377A Pinout Table 160 pin option 5 94 Figure 5 64 Agilent N9377A Current Sharing Example 5 95 Figure 5 65 Agilent 9378 24 Channel Low Resistance Load Card Block Diagram 5 98 Figure 5 66 Agilent N9378A 24 Channel Load Card Layout Figure 5 67 Load circuit details 5 100 5 99 Figure 5 68 Agilent N9378A Load Mounting Area
223. logic 1 closed Writing to this register starts the relay timer B 25 B Register Definitions Bit 7 6 5 4 3 2 1 0 Purpose K40 K39 K38 K37 K36 K35 K34 K33 CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 17 24 W Base 6h This register controls the Load Select switch armature relays for channels 17 24 The register uses positive logic 1 closed Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K48 K47 K46 K45 K44 K43 K42 K41 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W Base 7h This register controls the Pull Up Down Power Select armature relays for channels 1 8 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K8 K7 K6 K5 K4 K3 K2 K1 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Setting state state state state state state state state B 26 E6198B E6218A Switch Load Unit User Manual Register Defi
224. lug In Cards Breakout Board Connector Name for E6198B Standalone option Breakout board extends the connection from backplane to SLU rear Table 3 5 lists the description of each connector Table 3 5 Breakout Board Connectors Connector J1 Description Utility Connector J102 extension connector J3 Utility Connector J102 internal connector J 5 Frame Select amp Spare Supply Connect to J1 of backplane internal connector J 6 Power Bus Sense Local Remote Connect to J3 of backplane internal connector J7 Isense Bussed Split Connect to J2 of backplane internal connector 8 S1A S1D Toggle switches for Local Remote S2A S2H Toggle switches for Frame Select S3A S3F Toggle switches for Isense Bussed Split The breakout board is not available with E6198B System Integrated option See Figure 3 6 E6198B E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Cards 3 Backplane Connectors The following connector descriptions are referenced to Figure 3 9 T1 T14 are the Switch Load Unit power supply connectors The supply provides the required 5 V and 12 V for powering the backplane and Load Cards These power supply lines are protected by fuses J102 connects the signals that are cabled between the Switch Load Unit and the mass interconnect These signals include Eight bit
225. ly State 1 closed 0 open Power On Reset State 0 Power Select W Base 5 This register controls the Pull Up Down Power Select armature relays of the card one per channel pair These relays are Form double pole single throw and the register uses positive logic 1 Normally open NO shorted to COM normally closed NC is open 0 NC shorted to COM NO is open The power buses selected depend on how the card is configured by the user Writing to this register starts the armature relay timer Bit 74 3 011 2 010 1 001 0 000 Purpose Undefined K41 K31 K21 K11 8 7 CH 6 5 CH 4 3 CH 2 1 Setting X state state state state Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Register Definitions Agilent E6176A 16 Channel High Current Load Card The Agilent E6176A Load Card is designed for high current loads mounted outside the load card The card provides current sense pull up down and flyback protection The card also provides Card Type Card Configuration and Status readback of the built in relay timers See Using the Agilent E6176A 16 Channel Load Card for more information Register definitions for the card follow Card Type R Base 0 This register reads back the Card 024 of the card Bit 7 0 Purpos
226. mum non switching continuous 15 A max non switching 100 msec lt 2 duty cycle 150 Watts maximum resistive load 60 V maximum 1 mA 1V 0 1 maximum 0 6 5 V 0 7 Aat 12V A 4 6198 E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications Agilent E6177A 24 Channel Medium Current Load Card Specifications Parameter Specification A Path resistance from power bus to load card connect Load path relay operate release time Peak voltage to Earth Load carry switching current Relay switching voltage Minimum permissible load Maximum Current Consumption 0 5 maximum Exclusive of load with standard 0 05 Q sense resistor and 10 A slo blo fuse installed b Q for load currents 0 1 A 3 3 2 4 msec typical 8 8 msec max 10 cps maximum 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS 2 A maximum 60 Vdc maximum 10 uA 10 mV DC 2 2 Aat5 V E6198B E6218A Switch Load Unit User Manual A 5 A Switch Load Unit And Card Specifications Agilent U7177A 24 Channel Medium Current Load Card Specifications Parameter Specification Path resistance from power bus to load card 0 5 Q maximum connect Load path relay operate release time 3 3 2 4 msec typical 8 8 msec max 10 cps maximum Peak Voltage to Earth 60 V continuous 500 V maximum transient non switching delays to 60V in 200 mS Load carry switchin
227. n excess of 500 V may results in damage to the load card or SLU The N9377A load card comes with provisions for user installed flyback voltage protection Figure 5 57 shows a detail of the first two channels on the component locator diagram of the load card It shows the location and polarity orientation for the channel 1 RT501 and RT502 and channel 2 RT503 and RT504 flyback protection devices when they are installed This pattern is repeated for the other fourteen channels Figure 5 57 N9377A Load Card Flyback Locator and Polarity Orientation The flyback protection devices have one flyback protection from the output to the normally open side of the power switch and one flyback protection from the output to the normally closed side of the power switch 6198 E6218A Switch Load Unit User Manual 5 87 5 5 88 Using Load Cards and Loads In Figure 5 58 Channel 1 has two input lines connected to the input Form C switch RT502 connects input line J4 J7 and RT501 connects alternate input line J8 J11 to the output of 1 When a voltage spike occurs on the UUT that exceeds the rating on the flyback device the device clamps the surge voltage to the device s predetermined value The flyback protection is installed similarly on each input line Figure 5 58 N9377A Load Card Flyback Circuit Detail UUT loads Load P2 switch Chan1 lt lt o Load1 External ISense ISense mount loads
228. n119 Chans 9 Chans Chan2 4 K12 Chan E16 K14 K8 K2 q Chan7 Chan4 Chan1 9 K27 K21 K15 K9 K3 PwrSw14S Pwrsw114 PwrSw54 PwrSw2 4 K31 K25 K19 K13 K7 K1 PwrSw164 PwrSw134 PwrSw104 PwrSw7 9 Pwrsw4 9 PwrSw1 4 ojo 0 um oojo ojo 3 LQ lt 50 n 2 ne vas o J7lou J11 S ol lt oo T D 25 55 35 oo oo oo 6 11 J12 2 oo oo 85 85 B2 12 oo 13 oo 2 5 92 14 122 43 15 5 5 oo 17 oo J425 18 ES S lt E oo 19 oo 9 11325 85 2286 58 oo 20 xe Yu l 6 211 on 21 mo onm 22 oo 7 9 Peal 23 7 c 58 Seles 2 2010 24 B9 a a a 16 Sheet Metal Load Mounting Area Channel Number 5 40 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Selecting a Power Supply Configuration Each channel connects to the power bus via a Form C SPDT single pole double throw relay This relay has a NO normally open and a NC normally closed terminal Each NO terminal is connected to a pin on J3 J8 and each NC terminal is connected to a pin on J10 J15 Each pin on J3 J15 can be connected to any of
229. n5 2 Chan5 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 6198 6218 Switch Load Unit User Manual B 55 Register Definitions Load Select 9 12 W Base 8 This register controls the power selection relays for channels 9 through 12 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K308 K307 K306 K305 K304 K303 K302 K301 Chan12 2 Chan12 1 Chan11 2 11 1 Chan10 2 Chan10 1 Chan9 2 Chan9 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 13 16 W Base 9 This register controls the power selection relays for channels 13 through 16 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K316 K315 K314 K313 K312 K311 K310 K309 Chan16 2 16 1 15 2 Chan 5 1 14 2 Chan14 1 Chan13 2 Chan13 1 Setting state state state state state state state state Write Only State B 56 1 closed open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Load Select 17 20 W Base A Register Definitions This register controls the power selection relays for channels 17 through 20 with two possible loads on each channel
230. nd Loads Figure 5 43 Agilent U7178A 8 Channel Heavy Duty Load Card Block Diagram Bridge Load Example 5 64 UUT Load Loads Switches P2 LOAD J 5 5 External Mount Loads d Load 1 q H H H H 2 Backplane Interface iSense iSense PWR CH1 bus 1000 LEM Current Transducer Flyback Protection iSense iSense Flyback Protection iSense PWR_CH8 bus LEM Current Transducer Flyback Protection Current Sense Relay Timer Address Dat KC Power 5 12 Decode Logic Bridge Load Jumper 10AWG Teflon Insultated Wires GPIB o o PWR1 Power 2 l Supply o 2 __ PWR2 o o 2 eese 5 J6 J7 ma To Optional Remote Sense Connection of UUT 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 44 Agilent U7178A 8 Channel Heavy Duty Load Card Layout J3 a e e XF2 e xr4 e xr5 e xr6 5 J11 J12 J13 J15 J16 J17 J18 e XF7 R28 RE com A 9 e n 0 0 pl p e He Ogg z z SARE amp
231. ng a Current Sense Resistor Value 5 50 Using the Power Switches as General Purpose Relays 5 50 Connecting Loads 5 51 Load Wiring 5 52 UUT Connections 5 54 Using the Agilent E6178B 8 Channel Load Card 5 55 Selecting a Power Supply Configuration 5 57 Local Remote Sensing 5 58 Selecting a Load Fuse 5 58 Current Monitor 5 59 Selecting and Loading Flyback Protection 5 59 Protection Devices 5 60 Load and UUT Connections 5 61 Using the Agilent U7178A 8 Channel Heavy Duty Load Card 5 63 E6198B E6218A Switch Load Unit User Manual Selecting a Power Supply Configuration 5 65 Local Remote Sensing 5 66 Selecting a Load Fuse 5 66 Current Monitor 5 66 Selecting and loading flyback protection 5 67 Protection Devices 5 68 Load and UUT connections 5 69 Using the Agilent U7179A 16 Channel High Current Load Card 5 71 Selecting a Power Supply Configuration 5 73 Selecting a Current Sense Resistor Value 5 74 Selecting a Load Fuse 5 74 Selecting and Loading Flyback Protection 5 74 Protection Devices 5 75 Load Wiring 5 77 External Load Mounting Options 5 79 UUT Connections 5 81 Using the Agilent N9377A 16 Channel Dual Load Load Card 5 83 Selecting a Power Supply Configuration 5 86 Selecting a Current Sense Resistor Value 5 86 Selecting a Load Fuse 5 86 Selecting and Loading Flyback Protection 5 87 Protection Devices 5 88 Connecting Loads 5 90 Load Wiring 5 90 Recommended Connectors 5 94 Current Sharing 5 95 External Load Mounting
232. nit and Plug In Cards 3 In addition to holding load cards pin matrix cards and custom cards the Switch Load Unit also provides the following capabilities Built in USB interface Digital I O Current Sense Power Bus Sense Two DAC Channels e 5 12V 12V and Spare Power Each of the above features is described in detail in the following sections USB Interface The Switch Load Unit switching and data transfer is controlled by a built in USB interface Figure 4 13 shows the location of the USB interface Digital 1 0 The Switch Load Unit provides 8 bits of digital input 8 bits of digital output Open Drain Out and 8 bits of TTL level digital output Spare Digital Out There is no handshaking capability in the digital I O Typical usage of the digital I O includes Automation control Digital control of circuitry on the Agilent E8794A Custom Card Digital switches for example to indicate door open closed Actuator control Fixture ID Digital Input The digital input bits have TTL thresholds 0 55 Vdc for low 3 0 Vdc for high and are protected to 24 Vdc These includes the Fixture IDs that also use standard TTL inputs but are not protected to 24 Vdc Figure 3 3 is a typical example showing the usage of a digital input bit E6198B E6218A Switch Load Unit User Manual 3 5 J Switch Load Unit and Plug In Cards Figure 3 3 Digital Input Example 5 to 24 5 to 24 Digital
233. nitions Write Only State 1 NO shorted to COM NC is open 0 NC shorted to OM NO is open Power On Reset State 0 Power Select 9 16 W Base 8h This register controls the Pull Up Down Power Select armature relays for channels 9 16 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K16 K15 K14 K13 K12 K11 K10 K9 CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 Setting state state state state state state state state Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 Power Select 17 24 W Base 9h This register controls the Pull Up Down Power Select armature relays for channels 17 24 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K24 K23 K22 K21 K20 K19 K18 K17 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 Setting state state state state state state state state 6198 6218 Switch Load Unit User Manual B 27 B 28 Regi
234. nnel 18 Channel 19 c o c o c o c o c o Channel 20 1 Power 20 lt K 1 Power 217 Channel 22 k d 2A 1A d Power 22 7 e Channel 23 k 4 2C 1C 4 Power 237 Channel 24 2 1 Power 24A 5 44 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made Chan 1 3 Chan 1 3 Pwr Chan 4 6 Chan 4 6 Pwr Chan 7 9 Chan 7 9 Pwr Chan 10 12 Chan 10 12 Pwr Chan 13 15 Chan 13 15 Pwr Chan 16 18 Chan 16 18 Pwr Chan 19 21 Chan 19 21 Pwr Chan 22 24 Chan 22 24 Pwr NNUS Chan 24 Pwr from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 Figure 5 32 is a CN2 connector pinout showing the details 6198 E6218A Switch Load Unit User Manual 5 45 5 Using Load Cards and Loads Figure 5 32 Agilent E6177A 24 Channel Medium Current Load Card UUT Connections 5 46 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent U7177A 24 Channel Load Card The Agilent U7177A 24 channel medium current load card is intended to be used with loads mounted external to the S
235. nnels 3 and 4 with four possible loads on each channel Register Definitions Bit 7 6 5 4 3 2 1 0 Purpose K216 K215 K214 K213 K212 K211 K210 K209 Chan4 4 Chan4 3 Chan4 2 Chan4 1 Chan3 4 Chan3 3 Chan3 2 Chan3 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 5 amp 6 W Base 8 This register controls the power selection relays for channels 5 and 6 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K308 K307 K306 K305 K304 K303 K302 K301 Chan6 4 Chan6 3 Chan6 2 Chan6 1 5 4 Chan5 3 Chan52 Chan5 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 7 amp 8 W Base 9 This register controls the power selection relays for channels 7 and 8 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K316 K315 K314 K313 K312 K311 K310 K309 Chan8 4 Chan8 3 Chan8 2 Chan8 1 Chan7 4 7 3 Chan7 2 7 1 Setting state state state state state state state state B 45 6198 6218 Switch Load Unit User Manual B Register Definitions Write Only State 1 closed open Power On Reset State 0 Load Select 9 amp 10 W Base A This r
236. not used OAR not used not used not used not used Reset E6198B E6218A Switch Load Unit User Manual Read and Write Undefined bits read back as all 1s Unused bits for write can be either 0 or 1 does not matter e For BUSY Read Only 0 Busy 1 Ready For Reset Write Only 0 no change 1 causes board reset non latched B 41 B Register Definitions For OAR Write Only no change 1 causes all relays to open non latched Mezzanine Card 1 Configuration 8 Base 3 This register reads configuration information from the 1 upper and 1 lower mezzanine cards Card configuration is determined by the user to distinguish different load configurations There are four bits available for each card which permits identification of the mezzanine card location and proper orientation Use the action loadCardGet Info to read this register Figure B 2 shows the layout of the mezzanine cards Figure B 2 Mezzanine Card Layout ESTE E 3 102102100 ooo og og p EH 058 1 Cd 2 LE CJ g3 GB L3 EE O O L1 O Uppper C res Cj 2 O EC Lower The default read back is but you can pull down bits to zero as required to create a configuration byte unique to the loads installed B 42 E6198B E6218A Switch Lo
237. nouts The figures and tables on the following pages shows the pinouts for the Agilent E8782A and E8783A user connectors SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the Switch Load Unit or plug in cards Before you remove installed card disconnect AC power from the mainframe and from other cards that may be connected to the cards CAUTION STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to electrical components observe anti static techniques whenever removing a card from the Switch Load Unit or whenever working on a card E6198B E6218A Switch Load Unit User Manual J1 Connector Pinouts Using the Pin Matrix Cards 6 Figure 6 15 shows the pinouts for connector J1 which provides instrument and Abus access J1 is available only on the Agilent E8782A 64 Pin Matrix Card Figure 6 15 J1 Pinouts Instrument and Abus Access J1 96 Pin DIN C Instrument and Abus Access 6198 E6218A Switch Load Unit User Manual Row a b c 32 Gnd INST1 INST2 31 Gnd INST2 INST3 30 Gnd INST3 INST4 29 Gnd INST4 INST5 28 Gnd INST5 INST6 27 Gnd INST6 INST7 26 Gnd INST7 INST8 25 Gnd INST8 INST9 24 Gnd INST9 INST10 23 Gnd INST10 INST11 22 Gnd INST11 INST12 21 Gnd INST12 INST13 20 Gnd INST13 INST14 19 Gnd IN
238. oad 200 W max 8 40 Vdc max resistive load 100 W max 60 Vdc max resistive load 60 V max V I not to exceed Load Switching Power Gain Linearity accuracy 1 maximum Zero Current Offset e 0 typical when zero offset is adjusted as indicated in the User s Guide e 0 2 A typical when there is no zero offset adjustment 0 3 maximum at 25 C 0 6 A maximum over the system operating temperature range 107 cycles minimum 2 x 109 cycles minimum Switched 50 A 13 5 V Littelfuse 0257040 PXPV 40 A ATO Blade Fuse 0 3 at5V 1 8 at 12V 1 Exclusive of load with factory installed fuse A 8 E6198B E6218A Switch Load Unit User Manual Switch Load Unit And Card Specifications Agilent U7179A 16 Channel High Current Load Card Specifications A Parameter Specification Path resistance from power bus to load card 0 5 maximum connect Load path relay operate release time 7 3 ms typical 15 6 ms maximum Peak voltage to earth 60 V continuous 500 V maximum transient non switching delays to 60 V in 200 mS Load carry Switching current 15 A maximum Relay switching voltage 60 Vdc maximum Load switching power 400 W max 25 Vdc max resistive load 200 W max 30 Vdc max resistive load 80 W max 40 Vdc max resistive load 40 W max 60 Vdc max resistive load Load switching voltage 60 V max V I not to exceed Load Switching Power Basic current sense accuracy 196 maximum with standard 0 005 Q
239. oad 11 H 11 H Row 11 ra Power 11 i 9AP Channel12 5 Sioc 1 Power1 Row Channela Load 12 ip 410 d Row 9 12 2 4 Channel 13 fac 7C 4 4 Power 13 Rowe Channel 13 Load 13 Pp Ase H Row7 13 2 A 14 Lec m ip Powers REMISE EE Channela 6 b d Row5 ca Power 14 gt BAA 3AD A Channel 15 tm E 1 4 Power 15 Row4 ca Channel 15 b NAE 3 i Row 3 ca Power 15 4 2A LAL Row 2 Channel 16 2C e ick i Power c Load 16 2 18 1 Power 16 6198 E6218A Switch Load Unit User Manual 5 53 5 Using Load Cards and Loads UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 Figure 5 38 is a CN2 connector pinout showing the details Figure 5 38 Agilent U7177A 24 Channel Medium Current Load Card UUT Connections Chan 1 3 Chan 1 3 Pwr Chan 4 6 Chan 4 6 Pwr Chan 7 9 Chan 7 9 Pwr Chan 10 12 Chan 10 12 Pwr Chan 13 15 Chan 13 15 Pwr Chan 16 18 Chan 16 18 Pwr Chan 22 24 Pwr E16 Chan 24 Pwr 5 54 E6198B E6218A Switch Load
240. oad Fuse CAUTION The factory installed load fuses are x 14 30 amp slow blow These fuses may be replaced by fuses with a lower value depending on your load requirements The Agilent E6178 was qualified with a Bussman MDL 30 fuse This fuse is unique for its low power dissipation and very high I T rating which is required to meet the Agilent E6178 surge current specifications Refer to the module specifications for more information To maintain Agilent E6178 safety and reliability replace fuse with Bussman type MDL 30 fuse only E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Current Monitor Each channel on the Agilent E6178 uses a LEM model LA 55 TP Current Transducers with a 75 Q 0 01 0 3W low TC 2 5 ppm C resistor for sensing the current through each channel The sense relays are switched independently from the channel load relays The LEM current transducer module has a current gain of 1000 1 primary to secondary i e for a 1 amp primary current the secondary current is 1mA The secondary of the LEM current transducer is connected across a precision 750 resistor see Figure 5 39 The primary current is calculated by making a voltage measurement across this precision resistor and is determined by the equation V Hense ch 0975 The current monitor specification is with respect to the channel primary current which is being measured Gain Error 1 0 Maximum ove
241. oad Unit Ej Circuitry 2 F gt Digital Out DAC 12 12V i o To From Load Card 2 UUT E Pin Matrix Card 2 2 e 2 e e gt e t E Load Card Zn Pin Matrix Card Zn Note All plug cards are optional the mix and numbers of cards in your system will be different than shown here 3 8 6198 E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Cards 3 E6198B Integrated Switch Load Unit Description The Agilent E6198B now comes as a system integrated unit or as a standalone unit The features and functionality remains the same as the previous E6198A Differences between the two are in the cabling and function selection panel Figure 3 6 E6198B Integrated SLU Back View 17 2 S E NV MM 7 OG se 37 37357 JP RES RS ewe Sense Bussed Split PB Sense Remote Local Frame Select E6198B E6218A Switch Load Unit User Manual 3 9 3 Switch Load Unit and Plug In Cards Backplane And Breakout Board Connectors and LEDs Figure 3 7 Switch Load Unit Backplane Connectors USB port adaptor board Not Shown NTS 3NV Id3ID VH SL IL 6L OIL e e e e e e 3522222222222222222222222222121 e e L LL oo oe oe 9 oe 0 YIL
242. of the DAC2 digital input To set the value of the DAC output always write the MSB first followed by the LSB The output of the DAC will not update until the LSB is written See DAC Scaling Bits 7 6 5 4 3 2 1 0 Write DAC2 DAC2 DAC25 DAC2 DAC2 DAC2 DAC2 DAC2 6198 E6218A Switch Load Unit User Manual B 9 B Register Definitions Load Card Register Definitions Registers for the various load cards are defined in the following tables Each register is designated as W Write only or R Read only The subscipt indicates a hexadecimal number Table B 6 summarizes the register mapping for all load cards Table B 6 Summary of Load Card Register Definitions Register E6175A E6176A E6177A U7177A U7178A U7179A E6178B N9377A N9378A N9379A Offset 8 Ch 16 Ch 24 Ch 24 Ch 8 Ch 16 Ch 8 Ch 16 Ch 24 Ch 48 Ch 0 Card type Card type Card type Card type Card type Card type Card type Card type Card type Card type Base Card Card Card Card Card Card Card Card Card Card h config config config config config config config config config config Status amp Base 2 Status Status Status Status SEINS SHE Status be SEINS 2 register register config bit control control 8 Current Current Load Current rent Current Current Mezzanin Mezzanin 3
243. oltage 8 20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300V max at 1mA Reverse Standoff voltage 250 volts Maximum reverse leakage 5mA Maximum peak pulse current 5A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C 10 1000mS refers to a standard pulse of 10mS rise and 1000mS to 50 decay of peak value T 8 20mS refers to a standard pulse of 8mS rise and 20mS to 50 decay of peak value E6198B E6218A Switch Load Unit User Manual 5 89 5 Using Load Cards and Loads Connecting Loads Loads are mounted externally and connected to the load card via wires or cables The loads are wired to connectors which mate to the Agilent N9377A s J1 and J2 connectors respectively Figure 5 60 shows these connectors Figure 5 60 Agilent N9377A Connectors J1 J2 and Mating Connectors J1 J2 J1 Mating Connector for J1 J O 0000 0000 d HBHH aa HBHH th D D Mating
244. ontinuous carry current The card is not equipped for current sensing There is not any flyback voltage protection 6198 E6218A Switch Load Unit User Manual Figure 5 27 Agilent E6177A 24 Channel Medium Current Load Card Block Diagram Using Load Cards and Loads Mother Board Interface Relay Timer Relay Slot Decode Logic UUT Load External Loads Switches Mount P2 Load1 Loads i 1 Chan 1 Soe Load 1 Up 1 1 1 NC1 Common Load2 PwrSw2 2 N Noz Chan 2 oC Load 2 o 1 1 1 Common NC2 1 l 1 1 1 1 1 1 1 1 e 1 1 1 1 i 43 8 9 1 1 e 1 1 1 1 1 1 1 1 1 1 1 1 i J10 J15 1 1 1 1 1 Load24 i1 1 NO24 1 24 Chan 24 e o lt Load 24 lt lt lt PwrSw24 6 NC24 ommon J1 J1 even rows J1 odd rows 6198 E6218A Switch Load Unit User Manual ye Configuration Connector Current Sense Control Address 5 12V 5 24 5 39 5 Using Load Cards and Loads Card Layout Figure 5 28 shows the E6177A layout Figure 5 28 Agilent E6177A 24 Channel Load Card Layout Card Power Bus Configuration ID Configuration K6 Chan3 4 K34 K28 K22 K16 K10 K4 Chan17 1 Chan14 4 Cha
245. open GndRly 0 opens relay from Inst2 to System Gnd default 1 closes relay from Inst2 to System Gnd e DACIRIy 0 opens relay from Inst1 to default 1 closes relay from Instl to e DAC2RIy 0 opens relay from Inst1 to DAC2 default 1 closes relay from Instl to DAC2 Reset 0 causes no change 1 causes board reset and triggers the relay timer Clears itself afterward Not Used Base 3 Register offset used only for placeholder to make software addressing simpler Abus control and protection bypass relay W Base 4 Instrument matrix card Abus and protection bypass relay control register All relay control registers are positive true logic writing 0 opens the relay and writing 1 closes the relay Bits 7 6 5 4 3 2 1 0 Write AB4 AB3 AB2 AB1 PB4 PB3 PB2 PB1 e Writing to PB4 PB1 sets state of protection bypass relays e Writing to ABA4 ABI sets state of Abus disconnect relays Not Used Base 5 Register offser 5 used only for placeholder to make software addressing simpler UUT Common to Instrument Bus Bits 7 6 5 4 3 2 1 0 Write Instg Inst Instg Insts Inst4 Inst Inst2 Inst4 E6198B E6218A Switch Load Unit User Manual Instrument Relay 9 16 W Register Definitions
246. owr Toast Toad ioni Tied 7 _Tload2 2 e e Ter e p me poe pe Biondi aload eLoad2 80 02 SLomd2 1 aur Sw Ge oer apr Recommended Connectors Agilent recommends using the following 32 31 J2 9Load 1 9Load 1 9Load 2 9Load 2 9Load 1 9Load 2 9Load 1 9Load 2 9Load 1 9Load 2 aof sr Sw S wr owr oew rwr 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ERNI female connector part number 024070 as the mating connector for J1 and J2 ERNI crimp contact part number 014728 as the contact for the connector E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Current Sharing Each pin in the J1 and J2 connectors is rated for 2 amps but the N9377A load card is rated for 7 5 amps You can accommodate higher amperage loads by sharing pins on the connector Notice in the wiring schematic Figure 5 61 that pins A E in each row of and J2 are connected together on the PC board When connecting high current gt 2 amp loads wire across all five pins in each row of the connectors see Figure 5 64 This ensures current sharing across all pins and prevents premature p
247. part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 Figure 5 70 is a CN2 connector pinout showing the details 6198 E6218A Switch Load Unit User Manual 5 103 5 Using Load Cards and Loads Figure 5 70 Agilent N9378A UUT Connector Chan 1 3 Chan 1 3 Pwr Chan 4 6 Chan 4 6 Pwr Chan 7 9 Chan 7 9 Pwr Chan 10 12 Chan 10 12 Pwr Chan 13 15 Chan 13 15 Pwr Chan 16 18 Chan 16 18 Pwr Chan 19 21 Chan 19 21 Pwr Chan 22 24 Chan 22 24 Pwr 5 104 6198 E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent N9379A 48 Channel High Density Load Card The Agilent N9379A 48 channel high density load card is designed to work with loads mounted on mezzanine cards inside the Switch Load Unit with up to eight dual loads per card Figure 5 71 shows a block diagram of the Agilent N9379A The card is one slot wide Card Location Recommendations The card type is 06 Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel
248. pen Power On Reset State 0 Load Select 9 16 W Base 5 This register controls the Load Select switch armature relays for channels 9 16 The register uses positive logic 1 closed Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K72 K70 K68 K66 K64 K62 K60 K58 CH 16 CH 15 CH 14 CH 13 CH 12 CH 11 CH 10 CH9 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W 6 This register controls the Pull Up Down Power Select armature relays for channels 1 8 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC E6198B E6218A Switch Load Unit User Manual B 17 B Register Definitions shorted to COM NO is open The power buses selected depend upon how the card is configured by the user Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K55 K53 K51 K49 K47 K45 K43 K41 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 Setting state state state state state state state state Write Only State 1 NO shorted to COM NC open 0 NC shorted to COM NO open Power On Reset State 0 Power Select 9 16 W Base 7 This register controls the Pull Up Down Power Select armature re
249. pins and prevents premature pin failure from excessive current flow CAUTION Connecting high current gt 5 amp loads without wiring across all three pins in the row can cause premature pin failure Figure 5 52 Agilent U7179A Current Sharing Example P1 Connector P2 Connector Wiring Terminal View Wiring Terminal View DN Load 10 Load Load 15 Load 16 Load 8 External Load Mounting Options In industrial applications there will be a large variety of loading Some loads are large and cannot be mounted directly onto the load card For such a situation there are two possible solutions One would be to mount the load on a load plate which fits into the SLU slots adjacent to the load card The second solution would be to have a load box with all the loads fitted neatly inside and have wires from the load box to the mating connector on the load card To use load plates SLU slots have to be reserved for them There are guidelines to follow when mounting the loads on load plates Mount the loads as close to the load card as possible The dimensions of the load plate for the 16 channel card are 6198 E6218A Switch Load Unit User Manual 5 79 Using Load Cards and Loads Height 23 32 cm 9 18 in Length Max 34 00 cm 13 386 in Thickness 1 59 mm 1 16 Arrange the loads so that the lowest impedances have the shortest cable runs
250. polarity oriented as shown on the component locator All channels have similar orientation The flyback protection devices function exactly the same as for the 8 Channel Load Card one flyback protection from the output to the normally open side of the power switch and one flyback protection from the output to the normally closed side of the power switch In Figure 5 41 Channel 1 has two input lines connected to the input Form C switch RT1 connects input line J4 J7 and RT2 connects alternate input line J8 J11 to the output of Load1 When a voltage spike occurs on the UUT that exceeds the rating on the flyback device the device clamps the surge voltage to the devices predetermined value The flyback protection is installed similarly on each input line E6198B E6218A Switch Load Unit User Manual 5 29 5 Using Load Cards and Loads Figure 5 20 16 Channel Load Card Flyback Circuit Detail ISense UUT External ii id Loads Load J1 J16 Mount J2 J15 P2 Switches Loads T pe Mot Chan 1 lt lt lt Load 1 lt lt ANN s o PwrSw1 1 l RT1 B t RT2 1 Ros oO E m The flyback protection devices should be installed with the positive side towards the UUT On each of the 16 channels the high side should be located as shown in the component locator diagram Figure 5 41 MOV Metal Oxide Varistor or back to
251. ption 3 22 Figure 3 12 Switch Load Unit Rear View System Integrated Option 3 23 4 Configuring the Switch Load Unit Figure 4 1 Example of Load Matrix Custom Cards Loading Order 4 3 Figure 4 2 Component Location Schematic for User Installed External Power Supply 4 5 Figure 4 3 Spare Supply Input Connector on SLU rear SLU standalone 4 5 Figure 4 4 Power Bus Connectors J801 and J802 4 6 Figure 4 5 Example A Three Separate Supplies on PB1 PB4 4 7 Figure 4 6 Example B Isolated Power Supplies 4 7 Figure 4 7 DC Power Bus Connector Of Standalone SLU 4 8 Figure 4 8 Conceptional View of Local Remote Sensing 4 9 Figure 4 9 PB Sense Remote Local Interface Standalone SLU 4 10 Figure 4 10 PB Sense Remote Local and Frame Select Interface Integrated SLU 4 10 Figure 4 11 ISense Bussed Split Interface Standalone SLU 4 11 Figure 4 12 ISense Bussed Split Interface Integrated SLU 4 11 Figure 4 13 USB Cable Connections 4 12 Figure 4 14 Frame Select Interface Standalone SLU 4 13 Figure 4 15 Load Box Installed 4 14 5 Using Load Cards and Loads Figure 5 1 Loads Sources Conceptual Overview 5 4 Figure 5 2 Pin Assignments the Card Configuration Jack 5 5 6198 E6218A Switch Load Unit User Manual xi xii Figure 5 3 Agilent E6175A 8 Channel High Current Load Card Block Diagram 5 8 Figure 5 4 Agilent E6175A 8 Channel Load Card Layout 5 9 Figure 5 5 LEM Current Transducer 5 11 Figure 5
252. r and firmware revision FWR register Initial firmware revision Oy Bits 7 6 5 4 3210 Read FWR FWR FWR FWR 1 1 1 1 1 Status and Control Read Write Base 2 Status and Control Register provides applicable features from the Agilent E6172 VXI card register offset 4 Bits 7 6 5 4 3 2 1 0 Read Busy Manual OAR IsensRly DAC2RIy DAC1Rly GndRly Reset Write x Manual OAR IsensRly DAC2RIy DACiRly GndRly Reset Read Only Busy 0 indicates busy 1 indicates not busy Write and Read Bits Manual 0 to set column relay control to automatic 1 to set column relay control to manual 6198 E6218A Switch Load Unit User Manual B 63 B 64 Register Definitions See description for Register offset 4 Reset 0 causes no change 1 causes board reset and triggers the relay timer Clears itself afterward Reset causes Inst16 to be connected to the Inst MUX and Isense relay is disconnected Since the card level reset bit is OR d with the back plane reset the state of the Reset bit during read also indicates the state of the back plane reset line GndRly 0 opens relay from Inst2 DMM Lo to System Gnd default 1 closes relay from Inst2 DMM Lo to System Gnd DACIRIy 0 opens relay from Inst1 DMM Hi to DACI default 1 closes relay from Inst1 DMM Hi to DACI DAC2RIy 0 opens relay from Inst1 DMM Hi
253. r the temperature range Offset Error 0 3 Amps Typical over the temperature range 0 7 Amps Maximum over the temperature range The error due to the offset component can be reduced by measuring the zero current offset voltage channel relay open after the test system has warmed up and using this offset to correct for all subsequent measurements This should be done for each channel individually Using this technique the errors due to offset may be reduced to Offset Error 0 1 Amps over the temperature range Selecting and Loading Flyback Protection Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant but provides backup protection in case a defective UUT is tested The system integrator is responsible for ensuring the flyback protection devices are installed on the load cards LEM USA Inc 6643 West Mill Road Milwaukee WI 53218 414 353 0711 E6198B E6218A Switch Load Unit User Manual 5 59 5 Using Load Cards and Loads CAUTION The load cards are designed for a maximum of 500 Vpeak flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages in excess of 500 V eak may results in damage to the load card or SLU The Agilent E6178 Load Card comes with provisions for user installed fl
254. rd Interface Current UUT i Load i Relay Timer Sense amp i Control Loads i Switches 1 External Mount Loads lt q ds i i i NO1 Relay Slot Address H H H i i i Decode Logic gt H H Data i i 11 H 5 12V y User installed NC J802 J807 Chan24 fuses Pwr24 5 98 E6198B E6218A Switch Load Unit User Manual
255. rds inside the Switch Load Unit with up to eight quadruple loads per card Figure 5 65 shows a block diagram of the Agilent N9378A The card is one slot wide Card Location Recommendations The card type is 05 Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you switch in an external power supply while bypassing the power bus of the SLU for example Using the Power Switches as General Purpose Relays The card is not equipped for current sensing The card does not provide flyback voltage protection Loads are mounted onboard on a series of mezzanine cards that plug into the load card You can attach as many as four loads per channel Connecting Loads Each channel is capable of up to 2A continuous carry into a resistive load CAUTION It is possible to close more than one channel at a time The power supply connections to the load card and individual channels are rated for a maximum of 2 A continuous Do not exceed these specifications E6198B E6218A Switch Load Unit User Manual 5 97 5 Using Load Cards and Loads Figure 5 65 Agilent N9378 24 Channel Low Resistance Load Card Block Diagram Configuration Moner Connector Boa
256. re is for use in the performance of a U S Government prime contract or subcontract Software is delivered and licensed as Commercial computer software as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Government users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data E6198B E6218A Switch Load Unit User Manual Service and Support Legal Information 1 Any adjustment maintenance or repair of this product must be performed by qualified personnel Contact your customer engineer through your local Agilent Technologies Service Center Agilent on the Web You can find information about technical and professional services product support and equipment repair and service on the Web http www agilent com Double click the link to Test amp Measurement Select your country from the drop down menus The Web page that appears next has contact information specific for your coun
257. relay is complete The timer starts or restarts when a command to change a relay s state is received The timer stops when it times out after an interval sufficiently long for a relay to change state If the relay timer s status is busy as reported by bit 7 of the Status Register see Appendix B relays may not yet be in the desired state If the status is not busy then the relays have reached their newly programmed state The nominal time out value of the relay counter is 500 us Column Disconnect Relay Control Each of the four columns has a disconnect relay between it and the Analog Bus Depending on the state of bit 6 in the Control Register described in Appendix B the disconnect relays are either under manual or automatic control When in automatic mode when you close a matrix relay the disconnect relay associated with that column also closes When in manual mode the four column disconnect relays are controlled by bits 3 0 in the Column Control amp Protection Bypass Register described in Appendix B Because manual mode is used only when doing diagnostic checks the default control mode is automatic OAR Bit 5 in the Control Register controls the OAR open all relays feature which immediately opens all relays on the card Because the bit is self clearing it does not require resetting OAR also clears bits 3 0 of the Column Control amp Protection Bypass Register When executed OAR re triggers the re
258. rmation Other Load Cards Consult the relevant section for each load card in Chapter 5 for diagrams and components on other load cards For more information see Using the Agilent E6177A 24 Channel Load Card Using the Agilent U7177A 24 Channel Load Card Using the Agilent N9377A 16 Channel Dual Load Load Card Using the Agilent N9377A 16 Channel Dual Load Load Card Using the Agilent N9378A 24 Channel Low Resistance Load Card Using the Agilent N9379A 48 Channel High Density Load Card 32 Pin Matrix Modules Figure 6 2 shows the relay groupings for the Agilent E8792A The Agilent E8793A is identical but does not have the instrumentation relays Individual relays can be replaced on the Agilent E8792A and E8793A 32 pin matrix modules All relays are 5V 1A reed relays The Agilent part number for an 8 pack of relays is 0490 1838 The tables on the following pages list the component number for each possible relay The tables for the Measurement and Instrument Matrices are listed in a row column format For example in Table C 1 the relay that connects Measurement Matrix Row5 to Column3 Abus3 is K305 Relay component numbers are silk screened on the back of the PC board Table C 1 Measurement Matrix Relays Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Row1 K101 K201 K301 K401 K501 Row2 K102 K202 K302 K402 K502 Row3 K103 K20
259. roduct Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control Instrumentation product Do not dispose in domestic household waste To return unwanted products contact your local Agilent office or see http www agilent com environment product for more information 2 8 E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual 3 Switch Load Unit and Plug In Cards E6198B Standalone Integrated Switch Load Unit Rating 3 2 E6198B Standalone Switch Load Unit Description 3 3 E6198B Integrated Switch Load Unit Description 3 9 Backplane And Breakout Board Connectors and LEDs 3 10 Differentiating E6198B Standalone Option and System Integrated Option 3 22 This chapter gives an overview of the Agilent E6198B Standalone and Integrated Switch Load Unit SLU load cards and other associated equipment EE Agilent Technologies 3 1 3 Switch Load Unit and Plug In Cards E6198B Standalone Integrated Switch Unit Rating 3 2 Electrical Mechanical Table 3 1 Switch Load Unit Rating Electrical Parameter Value Input Voltage 100 240 VAC nominal Frequency 50 60 Hz Power 325 W maximum Table 3 2 Switch Load Unit Rating Mechanical Parameter Value Width 484 64 mm Height 373 61 mm Depth 520 52 mm Weight 15 0 kg E6198B E6218A Switch Load Unit User Manual Switch Lo
260. rom UUT C 2 Analog Analog Bus Bus Measurement Matrix Measurement Matrix Measurement Matrix 16x5 Instrument Matrix Features Agilent E8793 Pin Matrix Card 1 Agilent E8793 Pin Matrix Card n Agilent E8792 Pin Matrix Card The AUX channels are not shown in Figure 6 1 Refer to Figure 6 3 for detailed schematics of the 32 pin matrix cards Key features of the cards include e 16x 5 high speed reed relay Instrument Matrix Agilent E8793A only e 32 x 4 high speed reed relay Measurement Matrix e An integrated relay timer E6198B E6218A Switch Load Unit User Manual Using the Pin Matrix Cards 6 Automatic disconnecting of column relays for minimal loading of the Analog Bus e A single control bit can open all relays OAR Auxiliary or direct row access relays on each row Independently switchable series resistance protection on each column Detailed Block Diagram Descriptions Figure 6 2 is a detailed block diagram of the Agilent E
261. ropriate mass interconnect wiring guide for connection details You can also make UUT and power supply connections directly to CN2 as shown in Figure 5 46 6198 E6218A Switch Load Unit User Manual 5 69 5 Using Load Cards and Loads Figure 5 46 Agilent U7178A load card wiring Mating Connector for J3 5 xri XF2 9 s s e m 2 oll XF4 EI Jag X d e 5 amp e 8 9 X7 o o 3 e X8 9 R28 52 BJ e e Te TeJeTeTeTeTeTeTeTeTeTeTeTeo D E 2 6 5 A 5513 512 222 3 3 3 5 GEG R31 R32 R35 R36 1 51 RV1 RV2 RV3 RV4 RV5 RV6 RV7 RV8 q J11 2 J12 o Kat J13 K22 J14 K23 o x K24 J15 MP2 ics K26 o 7 K28 J18 Mating Connector J1 for J1 5 70 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Using the Agilent U7179A 16 Channel High Current Load Card A block diagram of t
262. s Load Select 41 44 W Base 10 This register controls the power selection relays for channels 41 through 44 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K708 K707 K706 K705 K704 K703 K702 K701 Chan44 2 Chan44 1 Chan43 2 Chan43 1 Chan42 2 Chan42 1 Chan41 2 Chan41 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 44 48 W Base 11 This register controls the power selection relays for channels 45 through 48 with two possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K716 K715 K714 K713 K712 K711 K710 K709 Chan48 2 Chan48 1 Chan47 2 Chan47 1 Chan46 2 Chan46 1 Chan45 2 Chan45 1 Setting state state state state state state state state Write Only State 1 closed open Power On Reset State 0 Power Select 1 16 W Base 12 This register controls the Pull Up Down Power Select armature relays for channels 1 16 Each bit controls power shared by two channels These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to E6198B E6218A Switch Load Unit User Manual Register Definitions COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer
263. s Load Wiring Figure 5 31 is a simplified schematic and CN1 connector pinout showing how loads are connected to CN1 Figure 5 31 Agilent E6177A Load Wiring Schematic and CN1 Pinouts Even Rows Odd Rows J1 CN1 CN1 J1 A Channel 1 K Hea SAk d Power 1 3 Channel2 i co o7 ETE 0 Channel 3 Hor SEL d Power 3 d i 3 Channel4 A14 A Load4 4 Power4 A Pod H CN1 Connector Channel 5 iuc 3ci 4 Power5 AN Wiring Terminal View NN Channel6 14 3E 4 4 A Py 1 d i Channel 7 K EA Load 4 Power 7 16 Load 1 2 Channel8 i bos 1C 4 8 i Row 14 Channel Load 4 5 Bs Channel9 die Load EE d Power9 A Row 13 Power 6 Row 12 Channel Load 7 8 1 H H o o Channel 10 Load 10 oe Row 11 Power J 9 H H Channel 11 K pr Load 11 9c Power 117 Row 10 Channel Load 10 11 12 9 Row 8 7 6 Row 5 Row4 Row 3 Row 2 Row 1 Channel 12 Power Channel ood 13 14 15 Channel 13 Power Channel Channel 14 Load 16 17 18 Power Channel 15 Channel 19 20 21 Power Channel 16 Channel Channel 17 Load 22 23 24 Co L 3 Power Cha
264. s Table 3 6 102 signal definitions 12 12Vdc Supply 12V and 12V from the Switch Load Unit Power Supply The 12V supply can deliver 12 5A the 12V supply can deliver 2 1A Spare Supply Connection for a user installed power supply not included in the standard system Refer to Connecting an Additional Spare Power Supply for details DAC1 DAC2 Digital In 0 7 Open Drain Out 0 7 Spare DigOut The Switch Load Unit provides two 14 bit channels of DAC which supply 16 V at 10 mA each The Switch Load Unit provides 8 bits of digital input 8 bits of open drain digital output and 8 bits of TTL level digital output Spare DigOut There is no handshaking capability Fixture ID 0 7 The Fixture ID lets you configure a unique ID for each mass interconnect fixture and read it back ID sent as TTL level bits Isense 1 4 Isense 1 4 These lines connect to the current sense bus on the Switch Load Unit backplane These lines are used for sensing current on a selected load card channel The 8 channel and 16 channel load cards are designed to connect to the current sense bus Each load card channel s current sense lines are multiplexed so that on each card only one channel at a time can be connected to the current sense bus The current sense lines and the slots they connect to are Isense lines 1 connect to Switch Load Unit slots 1 5 Isense lines 2 connect to Switch Load Unit
265. s 2 5 Operator Safety Information 2 5 Safety Symbols and Regulatory Markings 2 6 End of Life Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC 2 8 3 Switch Load Unit and Plug In Cards E6198B Standalone Integrated Switch Load Unit Rating 3 2 Electrical 3 2 Mechanical 3 2 E6198B Standalone Switch Load Unit Description 3 3 USB Interface 3 5 Digital 1 0 3 5 Digital Input 3 5 Open Drain Digital Output 3 6 DAC Channels 3 7 5 Vdc 12 12 Spare Power 3 7 Current Sense 3 7 Power Bus Sense 3 7 Switch Load Unit Block Diagram 3 7 E6198B Integrated Switch Load Unit Description 3 9 E6198B E6218A Switch Load Unit User Manual iii Backplane And Breakout Board Connectors and LEDs 3 10 Backplane Connector Name 3 12 Backplane J1 J2 and J3 Connectors 3 13 Breakout Board Connector Name for E6198B Standalone option 3 14 Backplane Connectors 3 15 Backplane LEDs 3 16 J102 Pinouts 3 16 J1 Pinout 3 20 J2 Pinout 3 20 J3 Pinout 3 20 11114 SLU Logic Power Supply Connector 3 21 Differentiating E6198B Standalone Option and System Integrated Option 3 22 Fuse Ratings 3 24 DC Power Bus Connections 3 24 4 Configuring the Switch Load Unit Card Location Recommendations 4 2 Load Card Types and IDS 4 4 Connecting an Additional Spare Power Supply 4 5 Configuring the Power Busses 4 6 Setting the UUT Power Supply Remote Local Sense Jumpers 4 8 Configuring the Current Sense Jumpers 4 10 Conne
266. s 6 27 Installing in the Switch Load Unit 6 29 7 Using the Custom Card General Purpose Breadboard 7 2 TS 5430 Series Emulation 7 2 Digital 1 O 7 2 Connector Breakouts 7 4 J2 Connector Breakouts 7 4 J3 J4 Connector Breakouts DAC 7 5 J3 or Connector Breakouts Event Detector 7 6 J5 and J6 Connector Breakouts 32 Pin Matrix Cards E6198B E6218A Switch Load Unit User Manual 7 7 vii E8794A Components and Schematics 7 8 A Switch Load Unit And Card Specifications Agilent E6198B Switch Load Unit Specifications 2 Agilent E6175A 8 Channel High Current Load Card Specifications 3 Agilent E6176A 16 Channel High Current Load Card Specifications 4 Agilent E6177A 24 Channel Medium Current Load Card Specifications 5 Agilent U7177A 24 Channel Medium Current Load Card Specifications 6 Agilent E6178B 8 Channel Heavy Duty Load Card Specifications 7 Agilent U7178A 8 Channel Heavy Duty Load Card Specifications 8 Agilent U7179A 16 Channel High Current Load Card Specifications 9 Agilent N9377A 16 Channel Dual Load Load Card Specifications 10 Agilent N9378A 24 Channel Low Resistance Load Card Specifications 11 Agilent N9379A 48 Channel High Density Load Card Specifications 12 Agilent E8792A and E8793A Specifications 13 Instrument Multiplexer Agilent E8792A Only 13 General Specifications Agilent E8792A and E8793A 13 Relay Characteristics Agilent E8792A and E8793A 14 Agilent E8782A
267. s and Loads Current Sharing Notice in the wiring schematic Figure 5 14 that pins A C and E in each row of J1 are connected together on the PC board When connecting high current gt 3 amp loads wire across all three pins in each row of CN1 see Figure 5 15 This ensures current sharing across all pins and prevents premature pin failure from excessive current flow Figure 5 15 Agilent E6175A Current Sharing Example CN1 Connector Wiring Terminal View BW 5 22 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 UUT Connections When configured as part of a standard Agilent system CN2 of the load card is typically connected via cables to a mass interconnect panel User connections to the UUT are then made from the mass interconnect panel Refer to the appropriate mass interconnect wiring guide for connection details You can also make connections directly to CN2 Figure 5 16 is a CN2 connector pinout showing the details Each even numbered row of CN2 represents a single load card channel The three pins in each row are connected together on the PC board for current sharing When making UUT connections wire across all three pins in each even numbered row This ensures current sharing across all pins and prevents premature pin failure from excessive current flow CAUTION Connecting high current gt 4 amp loads without wiring across all three pins in the row can cause premature pin failure
268. se of configuration and for software auto detection all of the Switch Load Unit cards and backplane conform to an address map structure that begins with the three registers as show in Table B 1 Table B 1 Standard Registers Register Offset Register Name Description 00 Card type See Table B 2 01 Card configuration Defaults to FF unless changed by user 02 Status Control Card specific controls Table B 2 shows the values returned from each card s Card Type register Table B 2 Standard Registers Model Number Card Type Value Description Agilent E6175A 0149 01 8 Channel Load Card Agilent E6176A 02 02 16 Channel Load Card Agilent E6177A 03 03 24 Channel Load Card Agilent U7177A 2410 184 24 Channel Load Card Agilent U7178A 254 19 8 Channel 40 A Load Card Agilent U7179A 3210 20 16 Channel 15 A Load Card Agilent E6178B 0449 04 8 Channel Heavy Duty Load Card 30 A Agilent N9378A 0549 05 24 Channel Low Res Load Card E6198B E6218A Switch Load Unit User Manual Register Definitions Table B 2 Standard Registers continued Model Number Card Type Value Description Agilent N9379A 06 06 48 Channel Load Card Agilent N9377A 07 07 16 Dual Channel Load Card Agilent E8792A 1045 0A Fully loaded pin card includes instrumentation multiplexer Agilent
269. sense resistor Factory installed fuse Littelfuse 0218015MXP 15 A Fuse Maximum current consumption 0 3 5 1 5 12V 1 Exclusive of load with standard 0 005 sense resistor and 15 A factory installed fuse E6198B E6218A Switch Load Unit User Manual A 9 A Switch Load Unit And Card Specifications Agilent N9377A 16 Channel Dual Load Load Card Specifications Parameter Specification Switch topology Path resistance from power bus to load card connect Load path relay operate release time Peak voltage to Earth Load carry switching current Load carry peak current Load switching power Load switching voltage Minimum permissible load Basic current sense accuracy with standard 0 05W sense resistor Basic current sense accuracy with differential amplifier engaged Vcm 0V Basic current sense accuracy with differential amplifier engaged Vcm 16V Isense differential amplifier 3 dB bandwidth Isense differential amplifier slew rate Maximum Current Consumption 16 channels with 2 loads per channel off board loads 0 4 Q maximum Exclusive of load with standard 0 05 Q sense resistor and 10 A slo blo fuse installed 5 Q for load currents lt 1A 10 5 msec maximum 30 cps max 60 V continuous 500 V maximum transient non switching decays to lt 60V in 200mS 7 5 A maximum non switching continuous 15 A max non switching lt 100 msec lt 2 duty cycle 150 Watts maximum resistive
270. sity Load Card 50 Pin Matrix Card Register Definition B 63 Agilent E8792A and E8793A Pin Card Register Definitions 63 Agilent E8782A 24 Instrument 40 Measurement Matrix Card B 71 Agilent E8783A 64 Pin Matrix Card 80 Agilent E8794A Custom Card Register Definitions 89 C Repair Information Support Strategy 2 Locating Load Card Components 2 Agilent E6175A 8 Channel High Current 2 Agilent E6176A 16 Channel High Current Card 4 Other Load Cards C 5 32 Pin Matrix Modules 5 64 Pin Matrix Modules 8 A Glossary Of Terms 6198 E6218A Switch Load Unit User Manual ix THIS PAGE IS INTENTIONALLY LEFT BLANK E6198B E6218A Switch Load Unit User Manual List of Figures 1 Legal Information 2 Safety and Regulatory Information 3 Switch Load Unit and Plug In Cards Figure 3 1 Agilent E6198B Standalone Switch Load Unit Front View 3 4 Figure 3 2 Agilent E6198B Standalone Switch Load Unit Back View 3 4 Figure 3 3 Digital Input Example 3 6 Figure 3 4 Digital Output Example 3 6 Figure 3 5 Switch Load Unit Block Diagram 3 8 Figure 3 6 E6198B Integrated SLU Back View 3 9 Figure 3 7 Switch Load Unit Backplane Connectors USB port adaptor board Not Shown 3 10 Figure 3 8 Switch Load Unit Breakout Board Connectors Standalone only 3 11 Figure 3 9 Switch Load Unit J102 Connector Pinouts 3 17 Figure 3 10 Cable Connector Pinouts 3 18 Figure 3 11 Switch Load Unit Rear View Standalone O
271. ster Definitions Write Only State 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open Power On Reset State 0 Agilent U7178A 8 Channel 40 A Load Card The Agilent U7178A Load Card is a 8 Channel Heavy Duty Load Card The card provides current sense and it is fuse protected at 40 A Flyback protection can be added for each load See Using the Agilent U7178A 8 Channel Heavy Duty Load Card for more information Register definitions for the card are as follows Card Type ID R Base 0 Value 19 Card Configuration R Base 1 The value is determined by the user by configuring connector J2 When unused a read of this register will be FFh Bit 7 6 5 4 3 2 1 0 Card J2 10 J2 9 J2 8 J2 7 J2 5 J2 4 J2 3 J2 2 Config Status Register R Base 2 Contains BUSY bit bit 0 which reflects the state of all relay timers returns 0 busy e BUSY returns 1 ready Bit 7 1 0 Status Value 1111111 BUSY Current Sense Select W Base 3h Only one current sense channel can be selected at any one time At reset no channel is selected E6198B E6218A Switch Load Unit User Manual Register Definitions Select Bit 7 5 Bit 4 0 Relays No Channel N A 00000 None Channel 1 N A 00001 K1 K2 Channel 2 N A 00010 K3 K4 Channel 3 N A 00011 K5 K6 Channel 4 N A 00100 K
272. supply In remote sense the voltage across the load equals the selected power supply voltage In this configuration the power supply automatically increases the voltage output to compensate for the voltage drop across the cables A conceptional view of both types of sensing is shown in Figure 4 8 6198 E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Figure 4 8 Conceptional View of Local Remote Sensing LOCAL Sense Configuration Sense Sense Power _Vps Supply Vload Rw2 Vwh Rwh x RwI x Vload Vps Vwh REMOTE Sense Configuration Sense Sense Power Vps Supply Vload Rw2 Vload Vps Rw1 Wire Resistance from terminal to load Rw2 Wire Resistance from terminal to load Current Vwh Voltage drop across wire from terminal to load VwI Voltage drop across wire from terminal to load Vps Power Supply Voltage Vload Voltage across the load Set the power supply sense jumpers in the LOCAL position for sensing the power supply outputs at the PB1 PB4 terminals For Standalone toggle PB Sense Remote Local switches to select either Remote or Local mode See Figure 4 9 E6198B E6218A Switch Load Unit User Manual 4 9 4 4 10 Configuring the Switch Load Unit Figure 4 9 PB Sense Remote Local Interface Standalone SLU For Integrated use Jumper to select the mode on PB Sense Remote Local See Figure 4
273. t 7 5 4 0 Purpose Undefined Sense Select Setting X Select No Write Only Undefined bits are not used Valid current sense selection values are 000015 100005 Selecting values 000005 or 100015 111115 will NOT select current sensing for any channel 000015 corresponds to current sense select on channel 1 00010 corresponds to current sense select on channel 2 011015 corresponds to current sense select on channel 13 100005 corresponds to current sense select on channel 16 000005 or gt 10000 no current sense relays selected Example Setting the current sense register to 001105 selects channel six Therefore relays K11 and K12 would be closed Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Register Definitions Select 9 10 11 12 13 14 15 16 Relays K17 K19 K21 K23 K25 K27 K29 K31 K18 K20 K22 K24 K26 K28 K30 K32 Load Select 1 8 W Base 4 This register controls the Load Select switch armature relays for channels 1 8 The register uses positive logic 1 closed Writing to this register starts the armature relay timer Bit 7 6 5 4 3 2 1 0 Purpose K56 K54 K52 K50 K48 K46 K44 K42 CH8 CH7 CH6 CH5 CH3 CH2 CH1 Setting state state state state state state state state Write Only State 1 closed 0 o
274. tance changes dramatically at a certain predetermined voltage NC Normally Closed switch contacts A Form C Single Pole Double Throw switch has two possible states The default or un powered state is its normal state The two terminals on the switch are therefore called normally open or normally closed NO Normally Open switch contacts See NC Open All Relays OAR A command that immediately opens all the relays both columns and rows on a module Optical Isolator A digital device that electronically isolates a signal from its source by converting the input signal to a light source usually laser or LED and reconverts the signal to an electronic signal using a photoelectric device Remote Sensing Monitoring the voltage output of a power supply can be done either at the inputs of the Switch Load Unit locally or at the inputs of the UUT remotely Remote sensing guarantees the voltage value set will be applied at the sense point and losses in the system will be compensated for E6198B E6218A Switch Load Unit User Manual Glossary Of Terms A For example If the UUT requires precisely 12 Vdc applied to it and there is a 0 5 Vdc drop between the power supply and the UUT due to system and cable losses setting the voltage sense to remote and thereby monitoring the power supply output at the UUT will compensate for the voltage drops between the power supply and the UUT Rs Source resistance
275. tarts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose Setting state state state state state state state state Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Power Select 9 16 W Base 13 This register controls the Pull Up Down Power Select armature relays for channels 9 16 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open E6198B E6218A Switch Load Unit User Manual B 49 B 50 Register Definitions 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K816 K815 K814 K813 K812 K811 K810 K809 Pwr16 Pwr15 Pwr14 Pwr13 Pwr12 Pwr11 Pwr10 Pwr9 Setting state state state state state state state state Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC Power Select 17 24 W Base 14 This register controls the Pull Up Down Power Select armature relays for channels 17 24 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this reg
276. tch Load Unit Rear View Standalone Option e E For continued fire protection replace fuses with seme type and rating tes Fasten this panel securely to provant electrical shock N10149 Fuses Rating 45 1 WARNING pr NOTUSED NOTUSED No operator serviceable parts inside X 4 Refer repair and servicing to trained service personnel pua A PBA Disconnectall extemal scurces before removing caver 5 5 IS ST IST 519150 ISTIS DC Power Bus Connections Wee ak eT 9 ENIM V Sense 1 colo PB Sense 3 PBSense2 colm PB Sense 4 Sense Lines OHH HHG A Ae secte Sense Bussed Split Frame Select 1890 E ga ex FREE Egle cz h PB Sense Remote Local ris icum KE tua e Eme m 21 20 19 18 17 16 15 14 1 13 12 1 10 9 8 7 6 if 5 4 3 2 1 3 22 E6198B E6218A Switch Load Unit User Manual Switch Load Unit and Plug In Car
277. te state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 21 4 22 W Base 10 This register controls the power selection relays for channels 22 and 21 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K708 K707 K706 K705 K704 K703 K702 K701 Chan22 4 Chan22 3 Chan22 2 Chan22 1 Chan21 4 Chan21 3 Chan21 2 Chan21 1 Setting state state state state state state state state B 48 Write Only State 1 closed open Power On Reset State 0 E6198B E6218A Switch Load Unit User Manual Register Definitions Load Select 23 amp 24 W 11 This register controls the power selection relays for channels 22 and 21 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K716 K715 K714 K713 K712 K711 K710 K709 Chan24 4 Chan24 3 Chan24 2 Chan24 1 Chan23 4 Chan23 3 Chan23 2 Chan23 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Power Select 1 8 W Base 12 This register controls the Pull Up Down Power Select armature relays for channels 1 8 These relays are Form C and the register uses positive logic 1 NO shorted to COM NC is open 0 NC shorted to COM NO is open The power buses selected are determined by how the card is configured Writing to this register s
278. te state state state state state Write Only State 1 closed open Power On Reset State 0 Load Select 15 4 16 W Base D This register controls the power selection relays for channels 16 and 15 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K516 K515 K514 K513 K512 K511 K510 K509 16 4 16 3 16 2 16 1 15 4 15 3 Chan15 2 15 1 Setting state state state state state state state state Write Only State 1 closed 0 open Power On Reset State 0 Load Select 17 amp 18 W Base E This register controls the power selection relays for channels 18 and 17 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K608 K607 K606 K605 K604 K603 K602 K601 Chan18 4 Chan18 3 Chan18 2 Chan18 1 Chan17 4 Chan17 3 Chan17 2 Chan17 1 Setting state state state state state state state state 6198 6218 Switch Load Unit User Manual B 47 B Register Definitions Write Only State 1 closed open Power On Reset State 0 Load Select 19 amp 20 W Base This register controls the power selection relays for channels 20 and 19 with four possible loads on each channel Bit 7 6 5 4 3 2 1 0 Purpose K616 K615 K614 K613 K612 K611 K610 K609 Chan20 4 Chan20 3 Chan20 2 Chan20 1 Chan19 4 Chan19 3 Chan19 2 Chan19 1 Setting state state state state state sta
279. te state state state state state state Write Only B Register Definitions COM NO is open The power buses selected are determined by how the card is configured Writing to this register starts the relay timer Bit 7 6 5 4 3 2 1 0 Purpose K824 K823 K822 K821 K820 K819 K818 K817 Pwr47 48 Pwr45 46 Pwr43 44 Pwr41 42 Pwr39 40 Pwr37 38 Pwr35 36 Pwr33 34 Setting state state state state state state state state Write Only State 1 NO shorted to Pwr node State 0 NC shorted to Pwr node Power On Reset State 0 all channels connected to NC B 62 E6198B E6218A Switch Load Unit User Manual Register Definitions Pin Matrix Card Register Definition Registers for the various load cards are defined in the following tables Each register is designated a W Write only or R Read only The h subscript indicates a hexadecimal number Agilent E8792A and E8793A Pin Card Register Definitions For relays writing a 1 closes the relay writing a 0 opens the relay Register read back for the relay states is not provided Thus state tracking must be done in software Card Type R Base 0 Returns the pin card type e Agilent E8792A returns card type of 1010 1010 Agilent E8793A returns card type of 1110 dddd 1011 Bits 7654 3 2 1 0 Read 0 0 Card Configuration Base 1 Pin card configuration registe
280. tem integrator is responsible for ensuring the flyback protection devices are installed on the load cards CAUTION The load cards are designed for a maximum of 500 Vpeak flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages in excess of 500 V eak may results in damage to the load card or SLU The Agilent U7178A Load Card comes with provisions for user installed flyback voltage protection Figure 5 45 shows the location for the flyback protection devices RV1 to RV8 The flyback protection devices should be installed with the positive side towards the UUT On each of the 8 channels the high side should be located as shown in the component locator diagram Figure 5 45 MOV Metal Oxide Varistor or back to back zener diodes are recommended for flyback voltage protection 6198 E6218A Switch Load Unit User Manual 5 67 5 Using Load Cards and Loads Protection Devices Refer to Figure 5 45 Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RV1 to RV8 provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card Figure 5 45 Typical Agilent U7178A load card flyback protection circuit UUT Driver 5 68
281. terminal is connected to a pin on J802 J807 Each pin on J802 J813 can be connected to any of the four power busses on J801 via jumper wires Figure 5 66 The terminal block jumpering allows convenient pull up or pull down of the various inputs It also lets you terminate a UUT load at a different voltage than ground The factory default is to provide two jumper combs one that ties all the pins on J802 J80 together and one that ties all the pins on J808 J813 together The NO pins are also jumpered to power bus 2 and the NC pins are jumpered to power bus 1 You 6198 E6218A Switch Load Unit User Manual 5 109 5 Using Load Cards and Loads can easily cut the combs for J802 J807 and J808 J813 to provide bus or pin isolation between the various input power bus connections Using the Power Switches as General Purpose Relays As with the E6177A and N9378A load cards the N9379A 48 channel load card lets you use the load switching relay as a general purpose switching relay See Using the Power Switches as General Purpose Relays for more information Connecting Loads Loads are mounted on the Agilent N9379A s mezzanine cards Figure 5 74 Up to 16 loads can fit on each mezzanine card with two loads per channel See Figure 5 72 for details of card placement and channel locations Figure 5 74 Agilent N9379A Mezzanine Card Mezzanine card IDs Loadx 1 100 OO 00800 4 90000000000000000000 Load x 2 1 Loadx 2 que Load x 1 1 Lo
282. ternal Current Sense Bus Loads Switches Mount ISense 1800 Loads Protection Load 1 1 Relay Timer Chan1 lt lt Relay Slot Decode Logic LdSense 1 LdSense 1 Flyback Protection Flyback Protection Load1 ISense i i ISense Load 16 1 Chan16 amp o Load 16 2 LdSense 1 LdSense 1 Flyback Protection Flyback Protection Load 16 5 84 6198 E6218A Switch Load Unit User Manual 5 Using Load Cards and Loads Figure 5 56 N9377A 16 Channel Load Card Layout e a D feo cc 0 D N nc a 1 n a a 5 a c 5 2 e s c 0 tom 0 0 IJ D D 0 LLEN 605 105 8oen Oren cien 0 D a 0 0 0 00 0 0 esues ezon ezon 29 22 60 vza c Beg ee 919 See 0 6094 2094 9099 goa 9094 092 Soom ED ER o EUN Hec 9197 aa r 2197 197 EE EP p sosnJ esueg s e 9J NAAM e gt 5 85 E6198B E6218A Switch Load Unit User Manual 5 5 86
283. the output of a open collector driver on meaning that the output voltage is pulled low ccSpare_DigOut x Driver state Nominal output value 1 on 0 volts 0 off 5 Volts or pull up value The reset state of this register is 0 all outputs off This output can be used for general purpose relay lamp and solenoid drive requirements E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B Switch Load Unit User Manual C Repair Information Support Strategy 2 Locating Load Card Components 2 EE Agilent Technologies C 1 C Repair Information Support Strategy Rebuilt exchange assemblies are available for many Agilent VXI modules However there are no exchange assemblies available for the load cards If a load card fails you have two choices purchase a new load card or troubleshoot the problem and repair it If the problem is a relay and you can determine which relay is defective you can repair the module The relays are through hole technology and easy to replace Locating Load Card Components Agilent E6175A 8 Channel High Current Card C 2 See the block diagram in Figure 5 3 to locate the relays and fuses for the E6175A The component locator diagram in shows the non component side back of the Agilent E3750 66503 through hole PC board This cards uses the 0490 1517 Form C relay as shown in Figure C 1 Two Agilent 0490 1839 relays switched in parallel are us
284. therwise noted writing a 1 closes energizes a relay and writing a 0 opens de energizes the relay The reset and power on state for all relays is open The block diagram in Figure B 1 shows the location of the various registers Figure B 1 Relay controlled by registers Base 03h Base 09h AD629 based diff amp Current Sense Select one per board shared DAS 0 3h bit 7 Current Sense Select 0 3h bits 0 4 lt o ISense Load lt disconnect 0 4h 0 5h Load select 0 8h 0 9h ISense KN _ Power Select 0 6h 0 7h Load x 1 NOx Use lt PB1 Chanx lt 054 installed lt PB2 power Load x 2 jumpers PB3 bus e lt PB4 Flyback Protection Flyback Protection Card Type R Base 0 This register reads back the card type of the card The N9377A is uniquely identified by card type 07 Bit 7 6 5 4 3 2 1 0 Purpose Card Card Card Card Card Card Card Card Type Type Type Type Type Type Type Type Setting 0 0 0 0 0 1 1 1 Read Only Power On Reset State 07 6198 E6218A Switch Load Unit User Manual B 35 B Register Definitions Card Configuration R Base 1 This register reads back the card configuration Card configuration is determined by the user to distinguish different load configurations on the same load card type The default read back is FF but you can pull down bi
285. tion Coils used as loads may have large flyback voltages which have the potential to damage other electronic components Generally the UUTs are equipped with flyback protection so flyback protection on the load cards is redundant but provides backup protection in case a defective UUT is tested The system integrator is responsible for ensuring the flyback protection devices are installed on the load cards 5 28 E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 CAUTION The load cards are designed for a maximum of 500 flyback voltage Operating the load cards without flyback protection installed on the appropriate channels or with flyback voltages in excess of 500 V eak may results in damage to the load card or SLU The Agilent E6176A Load Card comes with provisions for user installed flyback voltage protection Figure 5 40 is a detail of the first two channels on the component locator diagram of the load card It shows the location and polarity orientation for channel 1 s RT1 and RT2 and channel 2 s RT3 and RT4 flyback protection devices when they are installed This pattern is repeated for the other fourteen channels Figure 5 19 16 Channel Load Card Flyback Device Polarity Orientation Channel 1 Flyback Protection Channel 1 Isense Resistor ii K41 F2 813 814 K43 F3 R15 R16 Flyback protection components have their
286. tion of Conformity 2 2 Safety Information 2 3 Safety Summary 2 3 Safety Notice 2 3 General Safety Information 2 3 Environmental Conditions 2 4 Before Applying Power 2 4 Ground the System 2 5 Fuses 2 5 Operator Safety Information 2 5 Safety Symbols and Regulatory Markings 2 6 End of Life Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC 2 8 RE Agilent Technologies 2 1 2 Safety and Regulatory Information Declaration of Conformity 2 2 The Declaration of Conformity DoC for this product is available on the Agilent Technologies website You can search for the DoC by its product model or description at the following web address http regulations corporate agilent com DoC search htm If you are unable to locate the DoC please contact your local Agilent representative 6198 E6218A Switch Load Unit User Manual Safety and Regulatory Information 2 Safety Information Safety Summary The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument Agilent Technologies Inc assumes no liability for the customer s failure to comply with these requirements Safety Notice CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or th
287. to operate in a general purpose GP configuration This lets you switch in an external power supply while bypassing the power bus of the SLU for example Using the Power Switches as General Purpose Relays The card is not equipped for current sensing The card does not provide flyback voltage protection Loads are mounted onboard on a series of mezzanine cards that plug into the load card You can attach as many as two loads per channel Connecting Loads Each channel is capable of up to ZA continuous carry into a resistive load CAUTION It is possible to close more than one channel at a time The power supply connections to the load card and individual channels are rated for a maximum of 2 A continuous Do not exceed these specifications E6198B E6218A Switch Load Unit User Manual 5 105 5 Using Load Cards and Loads Figure 5 71 Agilent N9379A 48 Channel High Density Load Card Block Diagram _ Load i Mezzanine Card i Switches Loads Mother Board Configuration Interface Connector Com1 Chan1 LX Relay Timer Current Sense Relay Slot amp Control Load1 1 Load1 2 Load2 2 Tod Decode E Logic Address User installed i H jumpers lt Dia T Load2 1 Power 5 12V Com2 H H 1 H H User installed Com474 4 gu e J802 J807 NC Load47 1 Load47 2 5A User installed fuses jumpers i i o
288. tom Card Register Definitions Card Type R Base 0 The Custom Card always returns card type of 2010 14 Bit 76543210 Read 0 0 0 1 0 1 0 0 Configuration Base 1 Configuration registers are programmable by the user and may be used to identify what version of custom card is installed Default is pull high return Use switch 5201 to set value configuration Bits 7 6 5 4 3 2 1 0 Read Cg C5 C4 C3 Co C Co Control register W Base 2 Writing a 1 to bit seven generates a reset pulse duration 250 nS which you can use to reset on board circuitry The reset pulse is self clearing Digital Input R Base 3 Digital Input is a direct read back of the logic state present on custom card input lines ccSpare DigIn 0 ccSpare_DigIn 7 Bits 7 6 5 4 3 2 1 0 Read Din Ding Dins Ding Ding Ding Din Ding E6198B E6218A Switch Load Unit User Manual B 89 Register Definitions Digital Output W Base 4 Writing to the Digital Output register sets the output value of the custom card ccSpare DigOut 0 ccSpare_DigOut 7 signals The outputs of ccSpare DigOut x are open drain with a light pull up 100 k ohm Bits 7 6 5 4 3 2 1 0 Write Dout Doutg Douts Dout4 Dout Writing a 1 sets
289. try Agilent By Phone If you do not have access to the Internet call one of the numbers in Table 1 1 Table 1 1 Agilent Sales And Support Contact Numbers Americas Canada 877 894 4414 Latin America 305 269 7500 United States 800 829 4444 Asia Pacific Australia 1 800 629 485 China 800 810 0189 Hong Kong 800 938 693 India 1800 112 929 Japan 0120 421 345 Korea 080 769 0800 Malaysia 1 800 888 848 Singapore 1 800 375 8100 Taiwan 0800 047 866 Thailand 1 800 226 008 E6198B E6218A Switch Load Unit User Manual 1 1 4 Legal Information Table 1 1 Agilent Sales And Support Contact Numbers continued Europe amp Middle East Austria Belgium Denmark Finland France Germany Ireland Israel Italy Netherlands Spain Sweden Switzerland United Kingdom Other European Countries 0136027 71571 32 0 2 404 93 40 45 70 13 15 15 358 0 10 855 2100 0825 010 700 0 125 minute 07031 464 6333 0 14 minute 1890 924 204 972 3 9288 504 544 39 02 92 60 8484 31 0 20 547 2111 34 91 631 3300 0200 88 22 55 0800 80 53 53 44 0 118 9276201 www agilent com find contactus Manufacturing Address Agilent Technologies Microwave Products Malaysia Sdn Bhd Bayan Lepas Free Industrial Zone 11900 Penang Malaysia E6198B E6218A Switch Load Unit User Manual Agilent TS 5000 E6198B E6218A Switch Load Unit User Manual 2 Safety and Regulatory Information Declara
290. ts 7 6 5 4 3 2 1 0 Write Insto4 Insto4 2 Instog Inst4o 1158 1157 ABUS3 to Row Row Relay 1 8 W Base 21 3310 7 6 5 4 3 2 1 0 Write Rowg Row Rows Rows Rows Row Row Relay 9 16 W Base 22h 3449 Bits 7 6 5 4 3 2 1 0 Write Row44 Row43 Row42 Row 19 Row Relay 17 24 W Base 23h 3510 Bits 7 6 5 4 3 2 1 0 Write Rows Row Row 4g Row 47 Row Relay 25 32 W Base 24 3610 7 6 5 4 3 2 1 0 Write Rows ROW Row39 Row g Row g Row25 Row Relay 33 40 W Base 25h 3710 Bits 7 6 5 4 3 2 1 0 Write Row39 Row36 Row35 Row34 Row33 B 78 E6198B E6218A Switch Load Unit User Manual Register Definitions B ABUSA to Instrument Bus Instrument Relay 1 8 W Base 26 3810 7 6 5 4 3 2 1 0 Write Instg Insty Instg Insts Inst4 Insta Inst Inst Instrument Relay 9 16 W Base 27h 3949 Bits 7 6 5 4 3 2 1 0 Write 11556 1155 11554 1153 11542 Inst44 Inst4o Insto Instrument Relay 17 24 W Base 28 4040 7 6 5 4 3 2
291. ts to zero as required to create a configuration byte unique to the loads installed Use the actions loadCardGetlnfo and GetLoadCardID to read this register Note also that the N9377A load card supports a CC8 bit for offset register base 2 See Status amp Card Configuration Bit 8 R Base 24 Bit 7 6 5 4 3 2 1 0 Purpose CC7 CC6 CC5 CC4 CC3 CC2 CC1 CCO Setting state state state state state state state state Read Only e Undefined bits read back as all 1s FF p Status amp Card Configuration Bit 8 R Base 2 This register reads back the card s status and contains bit 8 of the card configuration port The status is defined as the state of the relay timer The relay timer has two timers wire OR d together One timer is designed for the slower armature relays gt 16 ms and the second designed for the faster reed relays 2500 us The timers restart whenever the registers controlling the respective relays are written to or the card is reset The card remains in the busy state until both timers have timed out Bit CC8 7 1 0 Purpose CC8 Undefined BUSY Setting state all 1s state Read Only Undefined bits read back as all 1s e BUSY 0 Busy 1 Ready B 36 E6198B E6218A Switch Load Unit User Manual Current Sense Select W Base 3 Register Definitions This register controls the current sense Isense relays of the card and enables the
292. ultaneously for current sense readings are located in slots that do not share a common current sense bus E6198B E6218A Switch Load Unit User Manual 4 11 4 Configuring the Switch Load Unit Connecting E6198B to the Computer via USB Interface or Parallel Port USB interface is introduced in E6198B on top of parallel port interface which is available on the older version on SLU The USB interface connects to the PC controller using a standard USB cable See Figure 4 13 Figure 4 13 USB Cable Connections 4 12 6198 E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Adding a Second Switch Load Unit You can add a second Switch Load Unit to the system as the load and switching requirements increase Connection to the PC controller can be made to any existing USB port or via an externally powered USB hub For Standalone SLU the Frame Select toggle switches sets the address of each Switch Load Unit see Figure 4 14 The toggle switches can be set for any address from zero to seven However for the Integrated SLU jumpers must be used for frame select For each system no two Switch Load Units can have the same address The factory default position is Address 0 As an example you can leave the address of the first Switch Load Unit set to 0 and set the address of the second Switch Load Unit to 1 Figure 4 14 Frame Select Interface Standalone SLU E6198B E6218A Switch Load Unit User Manual 4 13
293. ument Matrix These lines come from the Switch Load Units DACs and can be switched into the Instrument Matrix It also contains two additional sets of Analog Bus access on connector J1 The Agilent E8783A contains 64 x 4 Measurement Matrix only Features Common to Both Cards The Pin Matrix Modules contain a 40 x 4 matrix of relays for E8782A or 64 x 4 matrix of relays for E8783A additional relays to connect disconnect signals on the buses programmable registers to control the relays described in Appendix B and various other features All relays are of the high speed dry reed type for fast switching As shown in Figure 6 12 and Figure 6 13 the Measurement Matrix is arranged in 64 rows that can be connected to any of four columns on the common Analog Bus Closing a matrix relay connects a row to a column on the card The columns are connected to the Analog Bus which carries the signal between the UUT unit under test and instruments connected to the Analog Bus through the Agilent E8782A This structure lets you connect any system resource to any pin on the UUT This matrix along with the unswitched UUT Common allows as many as four system resources to be connected simultaneously E6198B E6218A Switch Load Unit User Manual 6 17 6 Using the Pin Matrix Cards Disconnect Relays automatically disconnect unused columns to minimize capacitive loading effects from the Analog Bus This makes it possible to expand the system without de
294. up state Resetting also clears all relay registers and starts the relay timer Protection Bypass Each of the four columns has a 200 ohm protection resistor connected in series which protects the relays by limiting the maximum current through the column Some measurements such as 2 wire resistance may require bypassing shorting across the protection resistor to remove its effects The default state is to have the protection bypass relays open which means the series protection resistors are in circuit Bits 3 0 in the ABUS Control amp Protection Bypass Register described in Appendix B control the relays used to bypass the series protection resistors You can bypass the protection on a column by column basis CAUTION To prevent damage to card bypas the protection resistors only when absolutely necessary 6198 E6218A Switch Load Unit User Manual 6 21 6 6 22 Using the Pin Matrix Cards Reset State Figure 6 14 Column Disconnect and Bypass Protection Relays Bypass Relay Column n eo y c Abus n Disconnect 2000 Relay The card resets to its default state whenever Operating power is first applied Operating power is removed and then reapplied e Bit 0 in the Control register described in Appendix B is asserted When the card is reset all relay registers are cleared column disconnect relay control is set to automatic mode and the relay timer is started User Connectors and Pi
295. urement and Instrument Matrices are listed in a row column format For example in Table C 6 the relay that connects Measurement Matrix Row5 to Column3 Abus3 is K305 Relay component numbers are silk screened on the back of the PC board Note that E8782A with ID 6649 and E8783A with ID 701 do not have Row to Aux relays Table C 5 Measurement Matrix Relays for E8782A Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Inst K101 K201 K301 K401 K901 Inst2 K102 K202 K302 K402 K902 Inst3 K103 K203 K303 K403 K903 Inst4 K104 K204 K304 K404 K904 Inst5 K105 K205 K305 K405 K905 Inst6 K106 K206 K306 K406 K906 Inst7 K107 K207 K307 K407 K907 Inst8 K108 K208 K308 K408 K908 Inst9 K109 K209 K309 K409 K909 Inst10 K110 K210 K310 K410 K910 Inst11 K111 K211 K311 K411 K911 Inst12 K112 K212 K312 K412 K912 Inst13 K113 K213 K313 K413 K913 Inst14 K114 K214 K314 K414 K914 Inst15 K115 K215 K315 K415 K915 Inst16 K116 K216 K316 K416 K916 Inst17 K117 K217 K317 K417 K917 Inst18 K118 K218 K318 K418 K918 6198 E6218A Switch Load Unit User Manual Repair Information Table C 5 Measurement Matrix Relays for E8782A continued Column1 Column2 Column3 Column4 Row to Abus1 Abus2 Abus3 Abus4 Aux Inst19 K119 K219 K319
296. utput W Base B The Open Drain Output register controls the state of the Switch Load Unit backplane mounted open drain drivers The open drain drivers can sink up to 200 mA individual 150 mA with all drivers on at once The drivers have a light pull up to Vec 100 k ohm Bits 7 6 5 4 3 2 1 0 Write OCout OCoutg OCouts OCout OCouts Ocout OCout OCouty Table B 5 OCout States Register State Driver State Nominal Output value 0 off Float to 5 V 1 on Pulled to ground Digital Output W Base C Writing to the Digital Output register sets the output value of the Spare DigOut 0 Spare DigOut 7 signals present on back plane connector J104 Spare DigOut 0 Spare DigOut outputs will directly reflect the contents of this register 1 high 0 low Bits 7 6 5 4 3 2 1 0 Bo De DAC2 Output MSB W Base D Writing to the DAC2 Output register sets the Most Significant Bit MSB of the DAC2 digital input To set the value of the DAC output always write the MSB first followed by the LSB register offset Ej The output of the DAC will not update until the LSB is written See DAC Scaling B 8 E6198B E6218A Switch Load Unit User Manual Register Definitions DAC2 Output LSB W Base E Writing to the DAC2 Output register sets the Least Significant Bit LSB
297. ve load 100 W max 9 40Vdc max resistive load 40 V max not to exceed Load Switching Power Exclusive of load with factory installed fuse Gain Linearity accuracy 1 2 maximum Zero Current Offset 0 1 A typical when zero offset is adjusted per user manual 0 3 A typical no zero offset adjustment 107 Cycles minimum 10 Cycles minimum Switched 40 A 14 Vdc resistive load Channel Relays 150 mA max Requires low side driver 12 Vdc Current Monitor Relays 15 mA max Requires low side driver 12 Vdc Bussman MDL 30 DO NOT SUBSTITUTE 0 3 at5V 1 5 12V 6198 E6218A Switch Load Unit User Manual A 7 A Switch Load Unit And Card Specifications Agilent U7178A 8 Channel Heavy Duty Load Card Specifications Parameter Specification Path resistance from power bus to load card connect Load path relay operate release time Peak voltage to earth Load carry current continuous Power bus carry current continuous Load switching power Load switching voltage Current sense accuracy Cycle lifetime relay mechanical Cycle lifetime relay mechanical at rated power Factory installed fuse Maximum current consumption 0 030 Q typical 0 075 7 2 ms typical 60 V continuous 500 V maximum transient non switching delays to 60 V in 200 mS 40 A maximum 40 A maximum 800 W max 8 30 Vdc max resistive load 500 W max 8 35 Vdc max resistive l
298. ven rows J1 odd rows E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Setting up a Bridge Configuration In the bridge configuration the power bus power supplies are not used The power for the bridge is supplied by the module the connection to the UUT power supply is effectively bypassed See Figure 5 12 Figure 5 12 Bridge Configuration for Channels 7 and 8 on 8 Channel Load Card E6175 Load Card Channels 7 amp 8 Normal Configuration ISense Sense Chan7 amp e e Rs 4 PwrSw4 t Jumper to Chan 8 v J7 Power Bus C4 Flyback Protection 2 E6175 Load Card Channels 7 amp 8 Bridge Configuration Chan 7 ow Load K11 NO 4 5 5 lt Y PwrSw4 t Isolated from E Power Bus Chan 8 o e 1 Load V r 7 NC 4 79 Flyback Protection Note that load on channel 8 is effectively removed from the circuit by jumper J7 This pattern is consistant for the three other channel pairs 1 2 3 4 and 5 6 Use the following table to determine the appropriate pins on J6 and J7 to jumper to create a bridge circuit on the indicated channels 6198 E6218A Switch Load Unit User Manual 5 19 5 5 20 Using Load Cards and Loads Bridge Circuit on Jumper Pins Channels 1 and 2 J6 1 and 2 Channels 3 and 4 J6 3 and 4 Ch
299. vices MOV Metal Oxide Varistor or back to back zener diodes are recommended for flyback voltage protection Refer to Figure 5 10 Zener Diode MOV Metal Oxide Varistor or Transzorb devices mounted at RTx or RTy 2 required per load 1 at NC and 1 at NO provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card NC i High Side 50mo Driver o ANN N 5 o o o NO _ 16V mS RTX 7 UUT NC 50mQ L R Te ANM Internal V NO Load Protection G Typical small MOV 38mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000mS 0 90 Joules watt seconds Transient peak current 8 20mS 100 Amperes Varistor voltage 1 0mA DC 300 Max Maximum Clamping Voltage 8 20mS 450 volts Capacitance 17 pF Typical Transzorb specifications are Breakdown voltage 300 V max at ImA Reverse Standoff voltage 250 volts Maximum reverse leakage 5 mA Maximum peak pulse current 5 A Maximum Clamping voltage 400 volts Maximum temperature coefficient 0 110 C The card was tested using a General Electric GE MOV II MA series MOV 10 1000mS refers to a standard pulse of 10mS r
300. vices This pattern is repeated for the other three channel pairs As an example in Figure 5 8 Chanl has two potential input lines connected to the input Form C switch K11 RT1 connects input line J4 and RT2 connects alternate input line J3 to the output of Load1 When a voltage spike occurs on the UUT that exceeds the rating on the flyback device the device clamps the surge voltage to the device s predetermined value E6198B E6218A Switch Load Unit User Manual Using Load Cards and Loads 5 Figure 5 8 8 Channel Load Card Detail Flyback Protection Circuit J1 A C E16 J1 A C E15 ISense ISense K12 Chan 1 4 o o lt K13 Chan 2 amp o T koaa 2 2 A R The flyback protection devices should be installed with the positive side towards the UUT On each of the four channel pairs the high side should be located as shown in the component locator diagram Figure 5 9 Figure 5 9 Agilent E6175A Flyback Protection Polarity LEM Module F1 Resistor F2 K11 o RT4 7 K12 Location and Orientation of Polarity Sensitivity Flyback Protection Devices for Channels 1 and 2 RT1 RT4 Note This pattern remains consistant for the channel pairs 1 2 3 4 5 6 and 7 8 6198 6218 Switch Load Unit User Manual 5 15 5 Using Load Cards and Loads Protection De
301. witch Load Unit Figure 5 33 shows a block diagram of the UT177A The card is one slot wide See Card Location Recommendations The card type is 18 See Load Card Type and Configuration ID The factory default configuration is explained in Selecting a Power Supply Configuration The factory default is to load a 0 05 Q 0 1 sense resistor in each channel See Selecting a Current Sense Resistor Value The Common line PwrX where X is the channel number on the input is brought back out to the input allowing each channel to operate in a general purpose GP configuration This lets you switch in a special external power supply while bypassing the power bus of the SLU for example See Using the Power Switches as General Purpose Relays Each channel is capable of up to 2 A continuous carry current The card is equipped for current sensing There is no flyback voltage protection E6198B E6218A Switch Load Unit User Manual 5 47 5 Using Load Cards and Loads Figure 5 33 Agilent U7177A 24 Channel Medium Current Load Card Block Diagram Mother Board Interface 180 Q Configuration Connector Current Sense 1800 Control Loads Load External Mount Loads iSense Relay Timer PA 4 Switches Relay Slot Address i cu Decode Logic Dat Chan1 4 Bower i iSense 5 12V i Load2 Chan2 go lt 3 i i i i H
302. wn in the figure Figure 4 1 Example of Load Matrix Custom Cards Loading Order Switch Load Unit Slot Front View Slot 1 2 3 45 67 gt 8 9 1 0 1 15 12413 14 1 5 1 6 1 7 1 8 19 720 2 1 LII LI mi CIC 8001500 i N9379A E6177A N9378A Agilent E6176A N9378A E6175A Agilent E8794A 48 Channel 24 24 Channel 16 Channel 24 Channel 8 Channel Custom Card Load Cards E8792A 32 Pin Matrix and Instrument Multiplexer Card 6198 E6218A Switch Load Unit User Manual 4 3 4 Configuring the Switch Load Unit Load Card Types and IDS Each card is assigned a different type and has a 10 pin connector that lets you assign a unique binary code ID number to each card See Load Card Type and Configuration ID for more information 4 4 E6198B E6218A Switch Load Unit User Manual Configuring the Switch Load Unit 4 Connecting an Additional Spare Power Supply The Spare Supply pinout located at SLU backplane connector J1 Integrated allows you to add an additional power supply such as a 24 V power supply for powering higher voltage relays It is necessary to remove the SLU rear cover to access this connector Figure 4 2 shows the placement and orientation on the backplane for th
303. y markings ICES NMB 001 his text indicates that the ISM device complies with Canadian ICES 001 Cet appareil ISM est conforme la norme NMB 001 du Canada The CSA mark is a registered trademark of the Canadian SP Standards Association A CSA mark with the indicators C US and US means that the product is certified for both the U S and Canadian markets to the applicable American and Canadian standards The C tick mark is a registered trademark of the Spectrum N Management Agency of Australia This signifies compliance 10149 with the Australia EMC Framework regulations under the terms of the Radio Communication Act of 1992 This instrument complies with the WEEE Directive 2002 96 EC marking requirement This affixed product label indicates that you must not discard this Se electrical electronic product in domestic household waste The CE mark is a registered trademark of the European Community This CE mark shows that the product complies ISM 1 A with all the relevant European Legal Directives E6198B E6218A Switch Load Unit User Manual 2 7 2 Safety and Regulatory Information End of Life Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This product complies with the WEEE Directive 2002 96 EC marking requirement The affixed product label see below indicates that you must not discard this electrical electronic product in domestic household waste Cs P
304. yback voltage protection Figure 5 40 shows the location for the flyback protection devices RV1 to RV8 The flyback protection devices should be installed with the positive side towards the UUT On each of the 8 channels the high side should be located as shown in the component locator diagram Figure 5 40 MOV Metal Oxide Varistor or back to back zener diodes are recommended for flyback voltage protection Protection Devices Refer to Figure 5 41 Zener Diodes MOVs Metal Oxide Varistor or Transzorbs devices mounted at RV1 to provide current path for the inductive load flyback Select the protection device so that it conducts at a voltage higher than the UUT s internal protection If the device s internal protection fails then the added external protection conducts to protect the UUT and the load card Figure 5 41 Typical Agilent E6178B Load Card Flyback Protection Circuit us 2 gt we PR AN lt Module lt lt Driver Power Supply lt lt RVx 55 Typical MOV 8mm axial lead mounted specifications are Continuous DC voltage 220 V Transient energy 10 1000mS 0 90 Joules watt seconds Transient peak current 8 20mS 100 Amperes 10 1000mS refers to a standard pulse of 10mS rise and 1000mS to 50 decay of peak value 8 20mS refers to a standard pulse of 8mS rise and 20mS to 50 decay of peak value 5 60 E6198B E6218A Switch Load Unit User Manual Using

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