GEI-100310, Bridge Interface Board IS200BICR
Contents
1. then test to verify that no power exists in the board Warnin g before touching it or any connected circuits To prevent equipment damage do not remove insert or adjust board connections while power is applied to the equipment Caution GEI 100310 Toremove the BICR board 1 Make sure that the drive in which the board resides has been de energized Refer to the appropriate User s Manual for complete de energizing procedures GEH 6131 for air cooled drives or GEH 6133 for liquid cooled drives 2 Open the drive s control cabinet door and using equipment designed for high voltages test any electrical circuits before touching them to ensure that power is off 3 Grasp each side of the TB1 connector that joins with the board s TB1 and gently pull the TB1 connector loose Individual wires do not have to be removed from the TBI connector 4 Repeat step 3 for TB2 5 Carefully remove the board from the rack as follows a Loosen the screws at the top and bottom of the board near the board ejector tabs The screws are captive in the board faceplate and should not be removed b Unseat the board by raising the ejector tabs c Using both hands gently pull the board from the board rack gt To install the new replacement BICR board 1 Verify that both fuses are present and good then slide the board into the correct slot in the rack Because boards are keyed for specific rack slots inserting the BICR into the2. D Chnl Auxan Bit A D Count Tolerance VN Neutral 2V 1 NA 256 Cnt V 2 5 Cell Temp 0 10V 2 NA 102 4 Cnt V 2 596 mA Input B 0 20 mA 3 0 48 9 Cnt mA X 3 596 V Input C 0 10V 3 1 99 9 Cnt V 3 596 mA Input A 0 20 mA 4 0 48 9 Cnt mA 3 596 Board Temp 0 5V RTD 4 1 204 8 Cnt V x 5 096 GEI 100310 Digital Analog Converter Outputs There are four 12 bit digital analog D A converters on the BICR board see Figure 8 Three of these outputs are scaled and buffered to provide the bipolar phase reference required by the bridge PWM modulator located on the FOHB board The forth converter is set between 0 to full scale to set the motor IOC trip reference level All four converter data registers are double buffered The R W data register are loaded and the new values transferred to the analog outputs at the same time as the LD line is asserted low All registers are set to the midpoint 0 V when the DARST line is set high IS200BICR Board e 9 10V REFA l PLO 43 ANAA 9 t ipis ETS v v Bb Ref P10 DADCS XBUSCI jcs z 10V og REF B A AAN 9 lt gt PLO 50 A1 amp Ol NE QE L R W DARST D 2 Y NDALD Di ADC8412 Y o3 WN b i 10V REF C 4 04 WN p O d XBUS Data po E Y Ref N10 Y AAA ARA 10V Pc AAA IOCREFN AAN 9 t ar Y IOCREFP v Figure 8 Reference D A Converter Interface Block Diagram Discrete Digital Inputs There are eight differenti
3. Rx Pk L L LVFBK FSLVFBK L L LVAB LVBC TP Voltage Value Voltage VCOHzN Pk Voltage RMS L L 2400 1800000 3394 1 220 683 4400 8 3 143 3000 2200000 4242 6 180 731 5422 4 3 218 3300 2400000 4666 9 165 730 5913 2 3 246 4160 3000000 5883 1 132 688 7385 7 3 276 4800 3500000 6788 2 113 784 8612 8 3 241 6000 4200000 8485 3 94 863 10330 7 3 378 6600 4800000 9333 8 83 029 11803 1 3 252 6900 5000000 9758 1 79 714 12294 0 3 264 7200 5200000 10182 3 76 653 12784 9 3 276 8400 6000000 11879 4 66 449 14748 2 3 313 10000 7200000 14142 1 55 389 17693 0 3 287 11000 7900000 15556 3 50 487 19410 9 3 296 12000 8600000 16970 6 46 382 21128 9 3 303 12500 9500000 18667 6 41 992 23337 8 3 290 13800 10000000 19516 1 39 895 24564 5 3 267 GEI 100310 IS200BICR Board e 3 BICR board voltage to frequency gain errors are less than 1 996 Motor Voltage Feedback Two line to line motor output voltages MVA B and MVB C are derived by resistive attenuated monitoring of the three output phases Attenuation strings are connected to TB2 and the string resistance Rx is varied to scale the feedback The two voltages are converted to VCO signals and passed through the P2 connector to VCO counters on the DSPX board see Figure 3 The VCO is biased so that with 0 V input the output frequency is 1 02 MHz Full scale is 1 MHz from the 0 V bias frequency Output frequency per pk output volt can be obtained using the following formula also see Table 3 Hz Vpk 5K 80172
4. discrete digital outputs will drop out If a clock failure occurs while the bridge is firing the RUN signal will also be removed In addition to the clkO and clk16 watchdog two additional watchdogs are implemented in the EPLD If bridge firing power is enabled through the power electronics enable bit the watchdog toggle bit must be written to an alternate state within a clkt1 period The clkt1 period must be less than 20 000 cIk0 periods or a watchdog fault will be generated IS200BICR Board 7 EPLD P1 B2 4 MASENP 24 415 V MASEN P1 B4 q MASENN Buffer DRVPS y pico P5 EPLD NMAC i MACOM A P1 A5 MAC on ba MARET P1 A3 T BIC_DABL MANO P5 y gt P1 M P5 t MBCOM y P1 A7 EPLD NMBC MBC pA E MENO P1 A9 tr MEM M LLLA PNF115 P1 B6 PNF Local Fault String p1 D2 L1 KCOM x O lt EPLD BR PNF24 LOCFLT P1 C1 LNF115 EPLD SYSFLT System C NM Dc E p1 c5 4 LNFCOM age Figure 6 Fault String and MA MB Contactor Control Block Diagram Analog Dig ital Converter Inputs There are four analog digital A D converter input channels as shown in Table 5 and Figure 7 Channel one of the A D converter monitors the motor neutral voltage VN VN is a bipolar voltage that i
5. wrong slot can damage the electronics Caution 2 Begin seating the board by firmly pressing the top and bottom of the board at the same time with your thumbs 3 Finish seating the board in the slot by starting and then tightening the screws at the top and bottom of the board Tighten the screws evenly to ensure that the board is seated squarely 2 4 in Ib torque 4 Orient the TB1 connector to TBI in the same position as when removed and reconnect the TB1 connector to TBI ensure that it is properly seated 5 Repeat step 4 for TB2 6 Close the drive s control cabinet door GEI 100310 IS200BICR Board e 17 Notes GE Industrial Systems Issue date 1999 09 22 General Electric Company 1999 by General Electric Company USA 1501 Roanoke Blvd All rights reserved Salem VA 24153 6492 USA
6. 0000 7200000 14142 1 55 672 17603 1 3 302 11000 7900000 15556 3 50 739 19314 5 3 311 12000 8600000 16970 6 46 609 21026 0 3 318 12500 9000000 17677 7 44 538 22003 7 3 302 13200 9500000 18667 6 42 194 23226 1 3 304 13800 10000000 19516 1 40 084 24448 7 3 282 Motor Current Feedback The two motor output current voltage signals IB and IC are derived by monitoring the B and C output phase currents using open or closed loop hall effect or LEMTM sensors connected to TB1 and TB2 see Figure 4 The front end sensor differential amplifier circuits can be configured for multiple inputs and gains of unity 0 5 and 0 25 through various sensor connection schemes to TB1 and TB2 In high current applications requiring two sensors per phase the sensors should be connected as shown in the parallel sensor connection diagram see Figure 5 Note External burden resistors are required when using closed loop sensors The burden resistor value should be selected to produce 4 with 3 full scale sensor output current 10 V across the burden resistor IB and IC voltages are converted to VCO signals MIB and MIC and passed through the P2 connector to the DSPX board VCO counters The VCO is biased so that with 0 V at IB and IC the output frequency is 1 MHz Full scale is 1 MHz from the 0 V bias frequency and is produced with a 5 V pk at IB or IC BICR board voltage to frequency gain errors are less than 1 7 Peak full scale is also repres
7. 53 6492 USA Phone 1 540387 7595 Fax 1 540 387 8606 indicates the international access code required when calling from outside of the USA Renewals spares or those not under warranty should be ordered by contacting the nearest GE Sales or Service Office Be sure to include the following when ordering any warranty or renewal parts e Complete part number and description e Drive serial number e Drive Material List ML number Note All digits are important when ordering or replacing any board The factory may substitute later versions of boards based on availability and design enhancements However GE Industrial Systems ensures backward compatibility of replacement boards Handling Precautions To prevent component damage caused by static electricity treat all boards with static sensitive handling techniques Wear a wrist grounding strap when handling boards or components but only after boards or components have been removed from potentially energized equipment and are at a normally grounded workstation Caution Printed wiring boards may contain static sensitive components Therefore GE ships all replacement boards in antistatic bags Use the following guidelines when handling boards e Store boards in antistatic bags or boxes e Use a grounding strap when handling boards or board components per previous Caution criteria Replacement Procedures To prevent electric shock turn off power to the board
8. 6 Hz Rx 005 M The motor output neutral voltage VN is also monitored This voltage is scaled and then passed to one of the 10 bit A D converters that has a 1 V full scale input 1 2 VN The VN is scaled through the attenuation strings and the full scale neutral pk voltage can be obtained using the following formula V pk full scale 2 V Rx 005 My 5K VAN TB1 5 E e MVAB E B ew VCO P2 D26 AN x VCO4 MB S v TB1 6 A e Tp MVBC Y _ 0 9 VECO Hout PACT SON VCO5 MC e e E v TB1 7 e 9 6 oo a v x VN To AID e Converter gt jg 1 TEVET v E e e e et S S 2 V Ref 4 e IS200BICR Board v Figure 3 BICR Board Motor Voltage Feedback Diagram GEI 100310 GEI 100310 Table 3 BICR Board Motor Voltage Outputs per Input Rx RMS L L Input Rx PkL L MVFBK FS MVFBKL MVAB MVBC Voltage Value Voltage VCOHz V L Pk Voltage TP RMS L L 2400 1800000 3394 1 222 640 4401 7 3 163 3000 2200000 4242 6 182 169 5379 6 3 237 3300 2400000 4666 9 166 991 5868 6 3 264 4160 3000000 5883 1 133 599 7335 4 3 294 4800 3500000 6788 2 114 516 8557 8 3 258 6000 4200000 8485 3 95 432 10269 1 3 395 6600 4800000 9333 8 83 504 11736 0 3 268 6900 5000000 9758 1 80 165 12224 8 3 280 7200 5200000 10182 3 77 082 12713 7 3 291 8400 6000000 11879 4 66 805 14669 6 3 328 1
9. Description Pin Name 1 ACOM 2 IC3P 3 IC1P 4 IC2P 5 IC1N 6 IC2N 7 IC3N 8 SHLD 9 MVA 10 MVB 11 MVC 12 SHLD Analog 15 V Common Phase C current sensor A 7 5 input 3 Phase C current sensor A 25 input 1 Phase C current sensor A 25 input 2 Phase C current sensor A 25 input 1 Phase C current sensor A 25 input 2 Phase C current sensor A 5 input 3 Shield Connection Motor voltage resistive attenuation Phase A input Motor voltage resistive attenuation Phase B input Motor voltage resistive attenuation Phase C input Shield Connection to Chassis GEI 100310 IS200BICR Board e 13 Table 10 User Testpoints Testpoint Name Description TP6 LVA B Line Phase Voltage A B 5 94 V pk FS TP7 LVB C Line Phase Voltage B C 5 94 V pk FS TP2 MVA B Motor Phase Voltage A B 5 94 V pk FS TP1 MVB C Motor Phase Voltage B C 5 94 V pk FS TP21 COM Signal Common TP5 MIA Motor Phase A Current 5 V pk FS TP3 MIB Motor Phase B Current 5 V pk FS TP4 MIC Motor Phase C Current 5 V pk FS These user testpoints are accessible through the opening in the BICR board faceplate and are listed in the order from top to bottom that they are arranged on the board Table 11 LED Indicators LED Color Name Description DS1 Green IMOK ON when power applied and board functioning properly DS2 Yellow DO2 Digital relay number 2 output ON when closed DS3 Yellow DO3 Digital relay number 3 output ON when clos
10. al discrete inputs routed to the BICR board from the CTBC terminal board through the CABP board The sense of the inputs is such that a high input on the CTBC results in a high input to the BICR board s EPLD The discrete inputs are optically coupled to the control logic Each input has a yellow LED to indicate its state Overvoltage protection up to 60 V is provided Note Input voltages above 60 V cause the 7 5 V zener diode to sink to 30 mA causing it to dissipate more than its rated power 250 mW The zener diode can handle non repetitive pulses of 10 W for 1 ms Table 6 Discrete Input Specifications Specification Conditions Min Typ Max Units Input Range 0 to 30 V dc Loading Vin 30 V dc Max 20 mA Positive Threshold Vin Increasing Max 20 V Negative Threshold Vin Decreasing Min 7 5 V Hysteresis Min 4 5 V Turn On Time Typ 3 ps Turn Off Time Typ 2 8 us Rise Time Typ 7 1 6 us Fall Time Typ 2 2 us Isolation Voltage Min 2500 V ac rms 10 e IS200BICR Board GEI 100310 Application Data GEI 100310 Solid State Relay Digital Outputs There are eight solid state relay outputs routed from the BICR board to the CTBC terminal board through the CABP board A high output from the BICR board s EPLD results in the output relay being closed and a low output from the EPLD results in the output relay being opened The default relay output state is open EPLD output pulled low The relay out
11. art e Ifthe part is under warranty e How to place the order This information helps ensure that GE can process the order accurately and as soon as possible Board Identification A printed wiring board is identified by an alphanumeric part catalog number located near its edge Figure 10 explains the structure of the part number The board s functional acronym shown in Figure 10 is normally based on the board description or name For example the BICR board is described as the Bridge Interface board IS 200 BICR H AAA L Artwork revision Functional revision Functional revision Group variation G or H Functional acronym Assembly level Manufacturer DS amp S for GE in Salem VA Backward compatible Not backward compatible 3200 indicates a base level board 215 indicates a higher level assembly or added components such as PROM Figure 10 Board Part Number Conventions Warranty Terms The GE Terms and Conditions brochure details product warranty information including warranty period and parts and service coverage The brochure is included with customer documentation It may be obtained separately from the nearest GE Sales Office or authorized GE Sales Representative GEI 100310 IS200BICR Board e 15 16 IS200BICR Board Placing the Order Parts still under warranty may be obtained directly from the factory GE Industrial Systems Product Service Engineering 1501 Roanoke Blvd Salem VA 241
12. e Safety Symbol Legend Warning Indicates a procedure or condition that if not strictly observed could result in personal injury or death Caution Indicates a procedure or condition that if not strictly observed could result in damage to or destruction of equipment Note Indicates an essential or important procedure or statement GEI 100310 GE Industrial Systems Bridge Interface Board IS200BICRH A These instructions do not purport to cover all details or variations in equipment nor to provide every possible contingency to be met during installation operation and maintenance If further information is desired or if particular problems arise that are not covered sufficiently for the purchaser s purpose the matter should be referred to GE Industrial Systems This document contains proprietary information of General Electric Company USA and is furnished to its customer solely to assist that customer in the installation testing operation and or maintenance of the equipment described This document shall not be reproduced in whole or in part nor shall its contents be disclosed to any third party without the written approval of GE Industrial Systems Section Page Punctiotial Description irre isete EEE eb Ie e eed Rete ea ERE IE EEEE 1 Line Voltage Feedback iie iter reet beate ep Axe ERE AREE 3 Motor Voltage Feedback iere e deed 4 Motor Current Feedback esesseeseeseeeeenenne n
13. ed DS4 Yellow DO4 Digital relay number 4 output ON when closed DS5 Yellow DOS Digital relay number 5 output ON when closed DS6 Yellow DO6 Digital relay number 6 output ON when closed DS7 Yellow DO7 Digital relay number 7 output ON when closed DS8 Yellow DO8 Digital relay number 8 output ON when closed DS9 Yellow DO1 Digital relay number 1 output ON when closed DS10 Yellow DI1 Discrete digital input number 1 ON when active DS11 Yellow DI2 Discrete digital input number 2 ON when active DS12 Yellow DI3 Discrete digital input number 3 ON when active DS13 Yellow DI4 Discrete digital input number 4 ON when active DS14 Yellow DI5 Discrete digital input number 5 ON when active DS15 Yellow DI6 Discrete digital input number 6 ON when active DS16 Yellow DI7 Discrete digital input number 7 ON when active DS17 Yellow DI8 Discrete digital input number 8 ON when active DS18 Yellow CONF DONE ON when contactor control configuration complete LEDs DS2 DS18 that are visible through the faceplate opening are for troubleshooting purposes and do not need to be observed during normal operation Table 12 Fuses Fuse Path Description and Part Number FU1 Local fault string 250 V 200 mA 44A725207 004 FU2 System fault string 250 V 200 mA 44A725207 004 14 e IS200BICR Board GEI 100310 Renewal Warranty Replacement How to Order a Board When ordering a replacement board for a GE drive you need to know e How to accurately identify the p
14. en nennen 5 Fault Sring and MA MB Contactor Control sese 7 Analog Digital Converter Inputs eese 8 Digital Analog Converter Outputs seen 9 Discrete Digital Inputs eese eene nennen 10 Solid State Relay Digital Outputs essere 11 END 11 Renewal Warranty Replacement esee enne 15 How to Order a Boatd toe oct ee eet iet 15 Handling Precautions essere nee 16 Replacement Proceduites eii e eerie teet peste der pete 16 Functional Description The IS200BICR Bridge Interface Board BICR is used in Innovation Series Medium Voltage GP Type H drives It provides an interface between the bridge and the drive control Analog feedback signals from the bridge are connected to TBI and TB2 on the BICR board s faceplate These signals are scaled and converted to voltage controlled oscillator V CO signals and then passed to the IS200DSPX Digital Signal Processor Control Board DSPX Basic bridge cell hardware control protection and diagnostics are implemented on the Medium Voltage Ac Drive Fiber Optic Hub FOHB board The FOHB board functions are interfaced to the control through the IS200BPIR Digital Interface Board BPIR The BPIR and BICR boards are mounted in an Innovation Series board rack and connect to the IS200CABP Cable Assembly Backplane Board CABP through their P1 connectors also P2 co
15. ented as 5 V at the MIA MIB and MIC test points IA voltage is derived from the inverted sum of IB and IC All three voltages are passed to window compare circuits to detect for an instantaneous overcurrent IOC condition The IOC trip thresholds are programmed from one of the outputs of the D A converter Zero to full scale of the D A output corresponds to zero full scale of the sensor current IS200BICR Board 5 15 o TB1 9 6 TB1 10 9 M 5 MIB TB1 11 NVV 9 vvv VCO H gt P2 B26 VCO2 MIB TB1 12 6 B IB Filter TB2 1 Vvv 9 VW WN Window Compare TB22 e e ES IB FBK v TB2 3 V V 9 v vv ES TB24 e e Filter Y WN Window Compare MIB TB2 5 bi WN 9 MIB 15 TB2 6 C T MIB IC Filter TB2 7 e e Window Compare 15 TB2 8 e e T IOC Ref AAA 9 TB2 9 Ka is MS e d e VCO P2 C26 A VCO3 TB2 10 TB2 11 TB2 12 v Figure 4 BICR Board Motor Current Feedback Diagram IB FBK1 Out 110v GND Note Current is Negative Typical single sensor connections Phase B TBI SHLD IB FBK TB1 5 20K e IB3P AAN j B1 6 40K 10K T IB FBK1 IB1P AAA IB iu GND ZON B P ane pui ui IB FBK2 2 1 8 B4N i W GND v J 1 9 40K Note E ez WN Current is TB1 10 1B3N 40K Negati
16. ls are not described in this publication IS200BICR Board 11 T OJ ps10 ps D Ds11 ER O ps12 MVA B D DS13 T2 D 1ps44 MVB C DO Liri DS15 pe D ps1 wa O Ds17 T3 Ol ps2 me Dl DS3 TP4 O3 DS4 D pss O1 TB1 Connector TB1 TB2 Connector TB2 P15 N15 S O ACOM 12 IS200BICR Board rut S mA OMAC D DS18 s amp ILDILDLD L LL SW43 SW44 SW45 SW46 SW47 SW48 SW49 SW50 TP18 IMOK IS200BICRH1A CONF_DONE TP17 o QSTATUS m JTAG TP21 BIC PSOK BARCODE Figure 9 BICR Board Layout Diagram TP10 TP9 P2 1 DCBA DCBA il GEI 100310 Table 8 TB1 Bridge Feedback Terminal Board Pin Descriptions Description Pin Name 1 LVA 2 LVB 3 LVC 4 SHLD 5 IB3P 6 IB1P 7 IB2P 8 IB1N 9 IB2N 10 IB3N 11 P15 13 N15 Line Voltage resistive attenuation Phase A input Line voltage resistive attenuation Phase B input Line voltage resistive attenuation Phase C input Shield Connection Phase B current sensor A 5 input 3 Phase B current sensor A 25 input 1 Phase B current sensor A 7 25 input 2 Phase B current sensor A 25 input 1 Phase B current sensor A 25 input 2 Phase B current sensor A 7 5 input 2 15 V Supply 15 V Supply Table 9 TB2 Bridge Feedback Terminal Board Pin Descriptions
17. lt a EPLD lt lt EStop E P1 Logic Logic P lt Spare BPIR Connections p PLO BPIR I O Connections gt pi Figure 1 BICR Board Block Diagram Table 1 BICR Board Typical Power Requirements Voltage Current 05 V dc 300 mA 15 V dc 150 mA 15 V dc 150 mA 24 V dc Isolated 50 mA 2 e IS200BICR Board GEI 100310 Line Voltage Feedback BICR board voltage to Two line to line ac input voltages LV A B and LVB C are derived by resistive frequency gain errors are less attenuated monitoring of the three input phases Attenuation strings are connected to than 51 796 TBI and the string resistance Rx is varied to scale the feedback see Figure 2 The two voltages are converted to VCO signals and passed through the P2 connector to VCO counters on the DSPX board The VCO is biased so that with 0 V input the output frequency is 1 MHz Full scale is 1 MHz from the 0 V bias frequency Output frequency per peak pk input volt can be obtained using the following formula also see Table 2 Hz Vpk 2 37 K 168492 Hz Rx 0095 M LVA B ANN 9 TB1 2 Pi AAA 9 Nv i SS bd 1 e AAA VCO gt o P2 A26 aa gt vco1 Y LVB C eo WN LVA LVBC TBI 1 A 09 N T NVV VCO Ho P2 B27 ES VCO6 Y T ear LVC __ TB1 3 e e D ira i t Figure 2 BICR Board Line Voltage Feedback Diagram Table 2 BICR Board Line Voltage Outputs per Input Rx RMS L L Input
18. n contactor e Control of the bridge RUN signal to the FOHB board through the HR1 HR2 contact To pick up this relay the C Disable and NMAC lines must be low and the fault string must be satisfied An MA sense input is provided and should be used with an interlock on the MA contactor to inhibit bridge firing if the main contactor does not pick up To pick up the MB relay the C Disable and NMBC lines must be low and the fault string satisfied Both the MA and MB pilot relays are dropped out on a WD fault Note Sense input for the MA contactor is 24 115 V ac dc with a loading of 4 10 mA peak No dedicated sense input is provided for the MB contactor The hardware configuration assures that if a fault string is broken while the drive is running bridge firing will be disabled before the MA or MB contactors drop out Sequencing of the contactors and the FOHB board RUN signal is done in software using the NMAC NMBC RUN and BICDABL control outputs and the MASEN LOCFLT SYSFLT and bridge feedback fault lines The BICDABL line is asserted high during power up or hard reset configuration of the BICR board s electronically programmable logic device EPLD Taking this line high assures the MA and MB contactors do not pick up until commanded A watchdog circuit in the EPLD monitors the 20 MHz clk0 and 16 MHz clk16 clock signals If the 20 MHz or 16 MHz clock is not present bridge firing will be disabled and the MA and MB contactors and
19. nnector for BICR board The logic signals from the BPIR board are interfaced to the BICR board through the CABP board Innovation Series is a trademark of General Electric Company USA The BICR board also provides a panel and system fault string interface eight optically isolated discrete digital inputs and outputs two 0 20 mA analog feedback inputs and one 0 10 V analog feedback input Bridge control fault string isolated T O and the 0 20 mA connections are made through the P1 connector The main control board interface and logic power supply connections are made through the P2 connector see Figure 1 and Table 1 A serial 1024 bit memory device is provided on the BPIR board This memory is programmed with board identification and revision information and accessed through a single data line BRDID on the P1 connector i VCO1 LVAB i 3 Line Voltage Feedback VCO6 LVBC O y 9 4 TB1 ec VCO4 MVAB i 4 Motor Voltage Feedback VCO5 MVBC P2 ere ot V Neutral B e VCO2 MIB TB2 re Motor Current Feedback VCO3 MIC HT y e IOC A B amp C IOC Trip V P1 TEMP gt Ref A A D e D A __020mMAA X y LLL R B dg PI P 020mAB l RefC XBUS Add Data amp Control P2 2 ISO DIG gt ISO DIG gt E Ins 8 Outs PI Clock Contactor P2 Ep Watchdog
20. puts are optically isolated from the control Each output has a yellow LED to indicate its state Transient voltage suppression is provided to clamp the output voltage at 32 V Note When clamping at 32 V the zener diodes can withstand up to 30 mA of current before they exceed their power rating 500 mW The zeners can handle non repetitive pulses of 10 W for 10 ms Table 7 Solid State Relay Output Specifications Specification Conditions Min Typ Max Units Output Voltage Rating Max 28 V dc Output Current Rating Max 0 7 Adc Turn On Time Photovoltaic Relay Typ 2 0 ms Turn Off Time Photovoltaic Relay Typ 0 5 ms Isolation Voltage Min 4000 V ac rms The BICR board includes two terminal boards two backplane connectors eight user testpoints eighteen LED indicators and two fuses There are no adjustable hardware devices on the board Refer to Figure 9 for component locations and the following tables for descriptions Note There are additional testpoints and an additional connector JTAG on the BICR board surface These are for development use only and not described in this publication Table Description 8 TB1 Terminal Board 9 TB2 Terminal Board 10 User Testpoints 11 LED Indicators 12 Fuses Note Backplane connectors P1 and P2 require a custom extender board to access individual pin signals Checking of these signals is not a part of standard in service testing troubleshooting procedures and these signa
21. s biased at 1 V for a neutral voltage of 0 V Full scale voltage for this input into the A D converter is 1 V Channel two of the A D converter monitors a temperature signal sent from the FOHB board and represents the peak temperature of the cells during normal operation Full scale at the input terminals P1 TEMP and P1 TEMPC is 10 V This voltage is used for temperature fault indication as shown in Table 4 Table 4 Temperature Fault Inputs Voltage Indication 10v 8v OK 8V 2V Over Temp Warning 2V OV Over Temp Trip 8 e IS200BICR Board GEI 100310 Channels three and four are externally multiplexed to provide two additional analog inputs The auxan line is used to select the two additional inputs With an auxan logic low channels three and four are assigned to the 0 20 mA input circuits There are two 0 20 mA inputs that are scaled for zero to full scale on two of the A D converter outputs Channels three and four are assigned to the 0 10 V and board temperature circuit outputs when the auxan line is asserted high 2 V Ref From VN Ch1 P1 C30 4 TEMPC e TMP NACS t cha From EPLD ACLK2 8 MHz P1 C32 EMP e Y AD7777 gt gt NWR p me VO XBUS P1 D7 NRD Biene AN 0 20 mA Ch3 P1 D9 PEL EN Broo BN 0 20 mA Ch4 Figure 7 A D Converter Interface Table 5 Analog Digital Converter Input Specifications Input Range A
22. ve 9 VN TB1 11 ug 20K 10 KZ TD TB1 12 45 TB2 1 e e GND v Typical Dual Sensor Connections Phase B Figure 5 Motor Current Feedback Sensor Connection Diagram 6 o IS200BICR Board IOCB IOCA IOCC To EPLD GEI 100310 GEI 100310 Fault String and MA MB Contactor Control There are two fault sting inputs to the BICR board see Figure 6 e One input dedicated to the panel series string of interlock contacts e One input dedicated to the system string of interlock contacts The input terminals for these fault strings are 24 V 115 V and common and each fault string is fuse protected Typical connections are between the common and one of the voltage terminals The inputs are isolated so one string can be operated at 24 V while the other is operated at 115 V Loading of the inputs is 20 mA maximum One of the specified voltages must be applied to both inputs for normal operation Current ratings for the MA and MB contactors are as follows e MA FormC 6A 125 V ac 6A 110 V de 2A 30V dc e MBFormA 6A 125 V ac 6 A 110 V dc 2 A 30 V dc The states of the inputs are reported back to the DSPX board Both inputs are hardware ANDed to provide a master enable for the MA and MB contactor pilot relays Dropping out either or both of these inputs while the drive is running will sequence a controlled shutdown The MA contactor pilot relay has two functions e Providing a set of Form C contacts to control the mai
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