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HP E1328A Service manual

1. 16 Installation Chapter 2 Chapter 3 Operating Instructions I n t rod u ct ion This chapter lists operating information for the HP E1328A D A Converter including e D A Converter operation Operator s check self test D A Co nve rter See the HP El 328A 4 Channel D A Converter User s Manual for D A O pe rat i on Converter operation including Getting started Configuring the D A Converter Using the D A Converter Understanding the D A Converter D A Converter command reference e D A Converter specifications D A Converter error messages O erato rs The Operator s Check for the HP E1328A D A Converter consists of C eck sending the self test TST command and checking the return The operator s check can be used at any time to verify the D A Converter is connected properly and is responding to the self test command See Chapter 8 Service for a list of D A Converter self test errors CAUTION The TST command temporarily resets the D A Converter to 0 V or 0 A output on each channel Make sure any devices connected to the DAC will not be adversely affected before using TST As required see the mainframe user s manual for information on address selection See the HP E1328A User s Manual for information on D A Converter SCPI commands Chapter 3 Operating Instructions 17 Self Test Procedure 1 Verify the D A Converter is properly installed in the mainframe and the mainframe has passed its
2. This product is a Safety Class I instrument that is provided with a protective earth terminal when installed in the mainframe The mainframe DAC and all related documentation should be reviewed for familiarization with safety markings and instructions before operation or service Refer to the WARNINGS page page iii in this manual for a summary of safety information Safety information for preventive maintenance testing adjusting and service follows and is also found throughout this manual This section contains WARNINGS which must be followed for your protection and CAUTIONS which must be followed to avoid damage to the equipment when performing instrument maintenance or repair SERVICE TRAINED PERSONNEL ONLY The information in this manual is for service trained personnel who are familiar with electronic circuitry and are aware of the hazards involved To avoid personal injury or damage to the instrument do not perform procedures in this manual or do any servicing unless you are qualified to do so CHECK MAINFRAME POWER SETTINGS Before applying power verify that the mainframe setting matches the line voltage and the correct fuse is installed An uninterruptible safety earth ground must be provided from the main power source to the mainframe input wiring terminals power cord or supplied power cord set GROUNDING REQUIREMENTS Interruption of the protective grounding conductor inside or outside the mainframe or discon
3. 61 Fud pogsal VeriDcatos Tel erse reer ed SSG ee BG a a 61 Example Sel TGS 6 254 244 6h Hd c 61 Example Positive Voltage Compliance osos osos 058 62 2 Contents HP E1328A Service Manual Example Positive Current Compliance 63 Performance Verification Tests gt c so su eom dada ar 65 Example Voltage Accuracy Measurements 65 Example Current Accuracy Measurements sso boo o o RR 84 445 66 Eun o BCC DED Sh Be ee ca Eire ERE SHE EGA 68 Example Voltage Adjustments 2 44 AR corra 68 Example Current Adjustments lt HRs Oe eS RES He CSRS Os 69 HP E1328A Service Manual Contents 3 Notes 4 Contents HP E1328A Service Manual CERTIFICATION Hewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology formerly Na tional Bureau of Standards to the extent allowed by that organization s calibration facility and to the calibration facilities of other International Standards Organization members WARRANTY This Hewlett Packard product is warranted against defects in materials and workmanship for a period of three years from date of shipment Dura tion and conditions of warranty for this product may be superseded when the product is integrate
4. Self test errors Operator errors Catastrophic failures Performance out of specification Chapter 8 Service 49 Self Test Errors An error number 330 is returned when the DAC self test fails If a self test error occurs recycle power and repeat the self test If the error repeats see Testing the DAC to trouble shoot the DAC Operator Errors Apparent failures may result from operator errors in sending SCPI messages to the DAC See Chapter 5 4 Channel D A Converter Command Reference in the HP E1328A User s Manual for information on possible SCPI command errors Catastrophic Failure If a catastrophic failure occurs see Testing the DAC to trouble shoot the DAC Performance Out of Specification If the DAC performance is out of specification limits use the adjustment procedures in Chapter 5 Adjustments to correct the problem If the condition repeats see Testing the DAC to trouble shoot the DAC Testing the DAC Table 8 1 lists the error messages associated with the DAC Based on the error returned from the DAC you can use the tests and checks in Table 8 2 to isolate the problem to a user replaceable part on the DAC rear panel or to the Al PCA See Figure 6 1 in Chapter 6 Replaceable Parts for locations of user replaceable parts NOTE If the problem cannot be traced to a user replaceable part listed in Table 6 1 return the counter to Hewlett Packard for exchange See Chapter 6 Replaceable Parts
5. For the 100 mA range Accuracy 100 mA range 35 0 ppm of Reading 5 0 ppm Range Temp Coeff 2 0 pen of Reading 1 0 pp of Range Meas Uncertainty A 142 0 ppm of Reading 6 0 ppm of Range Reading and Range in Amps DC Example Calculate DCI Measurement Uncertainty For a 4 0 mA dc reading on the 10 mA range for the conditions specified in this manual Measurement Uncertainty Amps 10 x 27 0 x Reading 6 0 x Range EOM x 27 0 x 004 6 0 x 010 0 168 x 10 A 0 168 WA For a 16 0 mA dc reading on the 100 mA range for the conditions specified in this manual Measurement Uncertainty Amps 10 x 42 0 x Reading 6 0 x Range 10 x 42 0 x 016 6 0 x 100 1 272 x 109 A 1 272 pA Test Accuracy For the HP E1328A D A Converter Ratio TAR n Calculations Test Accuracy Ratio TAR FAIGH Hits Oel Measurement Uncertainty Example Calculate Voltage Output Test Accuracy Ratio 58 Calculating D A Converter Accuracy Appendix A For an 8 0 V dc output if the High Limit value 8 14134 V and Measurement Uncertainty 83 3 py Test Accuracy Ratio TAR 8 14134 V 8 00000 V 83 3 x 10 V 1696 76 Since this value is gt 10 1 the entry in Table 4 2 is gt 10 1 Appendix A Calculating D A Converter Accuracy 59 60 Calculating D A Converter Accuracy Appendix A Appendix B Verification Tests C Programs Fu n ctional These
6. 2 10 22 40 52 85 83 30 103 60 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 10 00000 8 00000 5 00000 2 00000 0 00000 2 00000 5 00000 8 00000 10 00000 w 2 C2 C0 C2 C2 C2 C2 CO 10 14833 8 14134 5 13084 2 12033 11334 1 87967 4 86916 7 85867 9 85167 9 85167 7 85867 4 86916 1 87967 11334 2 12033 5 13084 8 14134 10 14833 103 60 83 30 52 85 22 40 2 10 22 40 52 85 83 30 103 60 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 10 00000 8 00000 5 00000 2 00000 0 00000 2 00000 5 00000 8 00000 10 00000 HRARARAHRAHRAA 10 14833 8 14134 5 13084 2 12033 11334 1 87967 4 86916 7 85867 9 85167 1 year DAC and HP 3458A specifications 5 C temp difference from cal temperature HP 3458A ACAL within previous 24 hours 9 85167 7 85867 4 86916 1 87967 11334 2 12033 5 13084 8 14134 10 14833 103 60 83 30 52 85 22 40 2 10 22 40 52 85 83 30 103 60 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 Chapter 4 Verification Tests 35 Table 4 2 Performance Test Record for the HP E1328A DAC Page 3 of 3 Current Accuracy Measurements Output Value mA Low Limit mA Measured Value mA High Limit mA
7. 64 Verification Tests C Programs Appendix B Pe rfo rmance These programs are designed to do the Performance Verification Tests Ve rifi C atio n found in Chapter 4 Verification Tests Tests Example Voltage This program checks the MEASURED output voltage on each DAC Accu racy channel and compares the result with the 1 year accuracy specifications for Measurements PAC Voltage Accuracy Measurements Test E1328A include lt stdio h gt include lt math h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float volts 9 10 8 5 2 0 2 5 8 10 float acc ulim llim meas int chan i if defined BORLANDC amp amp defined WIN32 _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session iprintf id RST n for chan 1 chan lt 4 chan printf nVoltage Accuracy Measurements on Channel u n chan for i 0 i lt 9 i iprintf id VOLT u f n chan volts i printf n New voltage output on channel u f V chan volts i printf n Enter MEASURED voltage value in V scanf f amp meas acc 0 0035 abs volts i 11334 llim volts i acc ulim volts i acc Appendix B Verification Tests C Programs 65 if meas lt llim meas gt ulim printf Test FAILED on channel u f
8. Meas Uncert LA Test Acc Ratio TAR aca 20 00000 16 00000 10 00000 4 00000 0 00000 4 00000 10 00000 16 00000 20 00000 20 29665 16 28265 10 26165 4 24065 22665 3 75935 9 73835 15 71735 19 70335 19 70335 15 71735 9 73835 3 75935 22665 4 24065 10 26165 16 28265 20 29665 1 440 1 272 330 168 060 168 330 1 272 1 440 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 2 2 2 2 2 2 2 2 2 20 00000 16 00000 10 00000 4 00000 0 00000 4 00000 10 00000 16 00000 20 00000 20 29665 16 28265 10 26165 4 24065 22665 3 75935 9 73835 15 71735 19 70335 19 70335 15 71735 9 73835 3 75935 22665 4 24065 10 26165 16 28265 20 29665 1 440 1 272 330 168 060 168 330 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 Co C9 C0 CO CO CO CO CO CO 20 00000 16 00000 10 00000 4 00000 0 00000 4 00000 10 00000 16 00000 20 00000 20 29665 16 28265 10 26165 4 24065 22665 3 75935 9 73835 15 71735 19 70335 19 70335 15 71735 9 73835 3 75935 22665 4 24065 10 26165 16 28265 20 29665 4d amp JJ EE 1 year DAC and HP 34584 specifications 20 00000 16 00000 10 00000 4 00000 0 00000 4 00000 10 00000
9. Plug In Module User s Manuals These manuals contain plug in module programming and configuration information Each manual contains examples for the most used module functions and a complete SCPI command reference for the plug in module Mainframe Service Manual This manual contains service information for the mainframe It contains information for ordering replaceable parts and exchanging assemblies Information and procedures for performance verification adjustment preventive maintenance troubleshooting and repair are also included Plug In Module Service Manuals These manuals contain plug in module service information Each manual contains information for exchanging the module and or ordering replaceable parts Depending on the module information and procedures for functional verification operation verification performance verification adjustment preventive maintenance troubleshooting and repair are also provided 8 HP 75000 Series B Service Documentation Chapter 1 General Information Introd uctio n This HP E1328A Service Manual contains information required to test adjust troubleshoot and repair the HP E1328A B Size VXI 4 Channel D A Converter DAC See the HP E1328A User s Manual for additional information on the HP E1328A DAC Figure 1 1 shows the HP E1328A DAC Figure 1 1 HP E1328A 4 Channel D A Converter Chapter 1 General Information 9 Safety Considerations Warnings and Cautions WARNING
10. 0 int chan char pass if defined _ BORLANDC__ amp amp defined __WIN32_ _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session itimeout id 10000 Set 10 sec timeout for chan 2 1 chan lt 4 chan printf id CAL u STAT OFF n chan printf id VOLT u MAX chan source 4 5 value 0 printf nVoltage Compliance Tests on Channel u chan do source source 0 5 old_value value printf n Set source to 1f Volts DC source printf n Measure channel output in V printf n Enter channel output in V scanf f amp value printf n DC Source value 1f VDC source printf n Channel u output 1f VDC chan value result value old_value while result 0 62 Verification Tests C Programs Appendix B if value gt 15 pass PASSED else pass FAILED printf n nMaximum channel u output 1f volts chan value printf nTest s for channel u n pass chan iclose id Close instrument session Example Positive This program checks the MEASURED current output from the DAC Current Compliance channel being tested If the DC SOURCE voltage is 2 13 0V when the output current drops to 90 of maximum current the program generates a Test PASSED indication If the DC SOURCE voltage is lt 13 0V when the output current drops to 90 of m
11. amp VAL Chan amp MAX 140 PRINT TABXY 1 18 Channel Chan is set to maximum 12V 150 INPUT Enter measured value in V to 5 5 digits Max 160 OUTPUT 70909 CAL amp VAL Chan amp VOLT Min Def Max 170 NEXT Chan 180 CLEAR SCREEN 190 PRINT Voltage Adjustments Complete 200 END Chapter 5 Adjustments 39 Cu rre nt This adjustment is used to update the stored current constants for each DAC J pi Adj ustments channel and should be performed e On initial setup e Periodically 24 hours or 90 days to maintain specified output accuracy see Appendix A Specifications of the HP E1328A User s Manual e When temperature has changed more than 5 C from last adjustment temperature e When the type of load is changed e Any time accuracy is in doubt NOTE For best measurement accuracy perform an HP 3458A multimeter ACAL not more than 24 hours prior to these adjustments Each DAC channel to be adjusted MUST be in the non calibrated mode CALx STAT OFF or errors in the adjustment constants will occur Equipment Setup Connect the HP 3458A multimeter and a 500 Q resistor to the channel to be adjusted as shown in Figure 5 2 Be sure to set all three channel jumpers to the I current position Set the HP 3458A to DCI function and set NPLC 100 P E1328A DAC a AK g H LI TH JLH t DLB ch DAC D m Channel JE c LL BD E D i ie E m
12. entry is the upper value of DAC accuracy Measurement Measurement Uncertainty is the expected accuracy of the HP 3458A Uncertainty Definition multimeter for specified conditions This value is shown in the Measurement Uncertainty column of Table 4 2 See the HP 3458A Multimeter Operating Programming and Configuration Manual for additional information on calculating HP 3458A multimeter measurement uncertainty Test Accuracy Ratio Test Accuracy Ratio TAR is the ratio of DAC accuracy to HP 3458A TAR Definition multimeter measurement uncertainty For the HP E1328A DAC performance tests Test Accuracy Ratio High Limit value Test Output value Measurement Uncertainty value This value is shown in the Test Accuracy Ratio TAR column of Table 4 2 Appendix A Calculating D A Converter Accuracy 55 DAC Accuracy Calculations DC Voltage Accuracy Equations DC Current Accuracy Equations For the HP E1328A DAC performance verification tests accuracy is defined for DC Voltage and DC Current outputs using the 1 year specifications in Appendix A Specifications of the HP E1328A User s Manual The assumed test conditions are e 1 year since calibration e Atleast 1 hour warmup e Temperature 5 C different than calibration temp e Calibration ON state CALx STAT ON for each channel e Same load as at calibration From Appendix A of the HP E1328A User s Manual DC Voltage Accuracy 1 year Accuracy Temperature Co
13. f amp def Appendix B Verification Tests C Programs 69 iprintf id CURR u MAX chan printf nChannel u is set to maximum 024 A chan printf nEnter measured value in A to 5 5 digits scanf f amp max printf id CAL u CURR f f f n chan min def max printf mnCurrent Adjustments Complete iclose id Close instrument session 70 Verification Tests C Programs Appendix B
14. 210 Ulim Chan l Amps Chan l Acc Chan l 220 IF Meas Chan l 1 E 3 lt Chan l OR Meas Chan l 1 E 3 gt Ulim Chan l THEN 230 PRINT TABXY 1 9 Test FAILED on Channel Chan for Amps Chan l 1 E 3 mA 240 ELSE 250 PRINT TABXY 1 9 Test PASSED on Channel Chan for Amps Chan l 1 E 3 mA 260 END IF 270 NEXT I 280 NEXT Chan 290 PRINT TABXY 1 18 Current Accuracy Tests Complete 300 END Table 4 2 Performance Test Record for the HP E1328A DAC can be used to record the results of each Operation Verification and Performance Verification test for the HP E1328A DAC this record can be copied if desired The record includes the DAC upper and lower limits HP 3458A measurement uncertainty and the Test Accuracy Ratio TAR for the test The values for DAC accuracy HP 3458A measurement uncertainty and TAR in Table 4 2 assume the following conditions If your test conditions differ from these conditions you will need to compute the appropriate values e Calibration ON state CALx STAT ON for each channel e 1kQ load for voltage accuracy measurements e 500 Q load for current accuracy measurements e Test temp ASSUMED to be 5 C different than cal temp e 1 year specifications for DAC accuracy e 1 year specifications for HP 3458A meas uncertainty For the conditions listed all Test Accuracy Ratios TARs exceed 4 1 Chapter 4 Verification Tests 33 Table 4 2 Performance Test Record for the HP E1328A
15. 5000 2 E a d E Sl por I E ora X Bra Bro Mu a NC EH Lo fo ll osition Figure 5 6 Current Adjustment Connections 40 Adjustments Chapter 5 NOTE Adjustment Procedures Example Current The value of 500 Q in Figure 5 2 is the factory value used for original adjustments If you previously adjusted your DAC with a different resistance value use that resistance value rather than 500 Q 1 Setthree jumpers on Channel 1 to the I position Connect a 500 Q resistor and HP 3458A to Channel 1 see Figure 5 2 Set Channel 1 to non calibrated mode with CAL1 STAT OFF 4 Set Channel 1 to minimum output 024 A with CURRI MIN Measure and record to 5 1 2 digits the actual output current in Amps 5 Set Channel 1 to default output 0 A with CURR1 DEF Measure and record to 5 1 2 digits the actual output current in Amps 6 Set Channel 1 to maximum output 4 024 A with CURR1 MAX Measure and record to 5 1 2 digits the actual output current in Amps 7 Enter recorded minimum default and maximum values with CALI CURR min def max The adjustment constants are automatically updated and stored 8 Repeat steps 1 through 7 for channels 2 3 and 4 as desired use CALchan STAT OFF CURRchan value and CALchan CURR values 9 Remove power and disconnect power equipment bac This program uses the measured minimum default and maximum values Adjustments you enter to update
16. Buyer supplied products NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HP SHALL NOT BE LIABLE FOR ANY DI RECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY NOTICE This manual and any examples contained herein are proveded as is and are subject to change without notice HEWLETT PACKARD HP COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MANUAL INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard Company shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing performance or use of this material This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photo copied reproduced or translated to another language without the prior written consent of Hewlett Packard Company HP assumes no responsibil ity for the use or reliability of its software on equipment that is not furnished by HP Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subdivision b 3 ii of the Rights in Technical Data and Comput
17. DAC Page 1 of 3 Test Facility Name Report No Address Date City State Customer Phone Tested by Special Notes Test Equipment Record Model Report No Date Test Equipment Used Description Model No Trace No Cal Due Date 34 Verification Tests Chapter 4 Table 4 2 Performance Test Record for the HP E1328A DAC Page 2 of 3 Voltage Accuracy Measurements Output Value V Low Limit V Measured Value V High Limit V Measurement Uncertainty uV Test Acc Ratio TAR 10 00000 8 00000 5 00000 2 00000 0 00000 2 00000 5 00000 8 00000 10 00000 nnl 10 14833 8 14134 5 13084 2 12033 11334 1 87967 4 86916 7 85867 9 85167 9 85167 7 85867 4 86916 1 87967 11334 2 12033 5 13084 8 14134 10 14833 103 60 83 30 52 85 22 40 2 10 22 40 52 85 83 30 103 60 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 gt 10 1 10 00000 8 00000 5 00000 2 00000 0 00000 2 00000 5 00000 8 00000 10 00000 2 2 2 2 2 2 2 2 2 10 14833 8 14134 5 13084 2 12033 11334 1 87967 4 86916 7 85867 9 85167 9 85167 7 85867 4 86916 1 87967 11334 2 12033 5 13084 8 14134 10 14833 103 60 83 30 52 85 22 40
18. adjustment temperature When the type of load is changed e Any time accuracy is in doubt Chapter 5 Adjustments 37 NOTE Equipment Setup NOTE HP E1328A DAC For best measurement accuracy perform an HP 3458A multimeter ACAL not more than 24 hours prior to these adjustments Each DAC channel to be adjusted MUST be in the non calibrated mode CALx STAT OFF or errors in the adjustment constants will occur Connect a 1 kQ resistor and HP 3458A multimeter to the channel to be adjusted as shown in figure 5 1 Be sure to set all three channel jumpers to the V voltage position Set the HP 3458A to DCV function and set NPLC 100 The value of 1 kQ in Figure 5 1 is the factory value used for original adjustments If you previously adjusted your DAC with a different resistance value use that resistance value rather than 1 kQ DAC HP 3458A 5 JAC DADO pa e ey n L oo 00000000 TT ooo Channel d Shine cave y Pal S a S crema 7 7 JV NI a P N loo N UC AN II loss x D Ba METT Position Set to Bb Voltage om cia XV Figure 5 5 Voltage Adjustment Connections 38 Adjustments Chapter 5 Adjustment Procedures 1 Set three jumpers on Channel 1 to the V position 2 Connecta1kQ resistor and HP 3458A to Channel 1 see Figure 5 1 3 Set Channel 1 t
19. copy of this printing history page Many product updates or revisions do not require manual changes and conversely manual corrections may be done without accompanying product changes Therefore do not expect a one to one correspondence between product updates and manual updates Edition 1 Part Number E1328 90010 uuuuvveeeeeeeeeeeeeeeenne June 1991 Edition 2 Part Number E1328 90011 2 0 eee eee June 1996 Safety Symbols Instruction that the user Frame or chassis oy ground ter manual symbol must refer to minal typi affixed to prod the manual cally connects to the equip uct Indicates for specific ment s metal Warning or frame Caution informa Alternating tion to avoid per product current AC sonal injury or damage to the Indicates the field wiring terminal that must be connected to earth ground before operating the equip ment protects against electrical shock in case of fault 177 or il WARNING Direct current DC CAUTION hazardous voltages Indicates WARNINGS The following general safety precautions must be observed during all phases of operation service and repair of this product 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 product Hewlett Packard Company assumes no liability for the customer s failure to comply with these require ments Ground the equipment For
20. printf Test FAILED on channel u for f A chan amps i else printf Test PASSED on channel u for f A chan amps i printf Current Accuarcy Tests Complete iclose id Close instrument session Appendix B Verification Tests C Programs 67 Adj ustme nts These programs are designed to assist with the adjustment procedures found in Chapter 5 Adjustments Example Voltage This program uses the measured minimum default and maximum values Adjustments you enter to update the voltage adjustment constants for Channels 1 2 3 and 4 Voltage Adjustments E1328A include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float min def max int chan if defined _ BORLANDC amp amp defined __WIN32__ _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session for chan 2 1 chan lt 4 chan printf n Voltage Adjustments on Channel u chan iprintf id CAL u STAT OFF n chan iprintf id VOLT u MIN chan printf n nChannel u is set to minimum 12V chan printf nEnter measured value in V to 5 5 digits scanf f amp min printf id VOLT u DEAN chan printf nChannel u is set to default 0V chan printf nEnter measured value in V to 5 5 digits scanf f amp d
21. verify the DAC is functional and is communicating with the mainframe external computer and or external terminal The functional tests for the HP E1328A DAC are e DAC Self Test e Voltage Compliance Tests Optional e Current Compliance Tests Optional This test verifies the DAC is communicating with the mainframe external controller and or external terminal by performing a self test TST command See Operator s Checks in Chapter 3 for a description of the DAC self test These OPTIONAL tests measure the voltage compliance on each channel of the DAC Positive Voltage Compliance Tests For positive voltage compliance tests each channel to be tested is set for UNCALIBRATED MAX voltage output 12V A DC source is connected to V and S of the channel to be tested The source is set to 5V and increased in 0 5V steps until the channel output as measured with an HP 3458A multimeter stops increasing If the channel maximum output is gt 15V the test passes Negative Voltage Compliance Tests For negative voltage compliance tests each channel to be tested is set for UNCALIBRATED MIN voltage output 12V A DC source is connected to V and S of the channel to be tested The source is set to 5 V and increased in 0 5V steps until the channel output as measured with an HP 3458A multimeter stops increasing If the channel minimum output is 15V the test passes Connect the DC source Datron 4708 with Option 10 and H
22. 16 00000 20 00000 20 29665 16 28265 10 26165 4 24065 22665 3 75935 9 73835 15 71735 19 70335 5 C temp difference from cal temperature HP 3458A ACAL within previous 24 hours 19 70335 15 71735 9 73835 3 75935 22665 4 24065 10 26165 16 28265 20 29665 36 Verification Tests Chapter 4 Chapter 5 Adjustments Introd uctio n This chapter contains procedures to adjust the HP E1328A D A Converter DAC including voltage adjustments and current adjustments The DAC should be adjusted after repair to ensure peak performance Equipment required for the adjustment procedures is listed in Table 1 2 Recommended Test Equipment Before performing adjustments the DAC must have a minimum 60 minute warm up and the line voltage must be 115 230 Vac 10 For best accuracy the test area temperature should be between 18 C and 28 C and stable to 1 C WARNING Do not perform any of the following adjustments unless you are a qualified service trained person and have read the WARNINGS and CAUTIONS in Chapter 1 Voltage This adjustment is used to update the stored voltage constants for each DAC Adj ustments channel and should be perfomed e On initial setup Periodically 24 hours or 90 days to maintain specified output accuracy see Appendix A Specifications of the HP E1328A User s Manual When temperature has changed more than 5 C from last
23. 21 Test Procedure Positive Voltage Compliance sn 22 Test Procedure Negative Voltage Compliance o o ee 626044646664 n 23 Example Positive Voltage Compliance socio s Rs 23 Cument Compliance Tesis 4 sa o do 95 dh dB oi ok doute re 24 Test Procedure Positive Current Compliance 2 00 1 a Ha 26 Test Procedure Negative Current Compliance gt oe cs serer o 08 6 26 Example Positive Current Compliance lt e 0 45248 24 G0 eS bd ks 27 Operation Verication Tests a uoo doce dca oe Bash ea 28 Pertormance Verification Tests i ada cn dk rs AR 29 Voltage Accuracy Measurements Test ux s Gay so er RE A 29 HP E1328A Service Manual Contents 1 Counter Accuracy Measurements Test os o oce eom y 9 OS 31 Performance Test Record aca AC 44544844 0446 hau ts bh 33 Chapters AdJUSUMEDIS ass s y 24a reis 37 iuc ce FAS RS ELE RSS ESA EEE a TT aJ VOLS ACJOUSEBEU S 4 bea aa Ro PW oko OR A 37 Pquipitienl SEIN un ae ede ah dair RS EHE BE WEE PER ed 38 Alyusiment Procedires x uu ue dos coe o ARABE 39 Example Voltage Adjustments 2 soo oo o bo SE Ra 39 Curent AUIBSEDEHES u 42 Saas AS ERS AAA Ero BIER REOR god 40 EXGWIDDBERE SEINE 62 3r de Qon dep dq pd e A 40 Asdp stment Procedures ig eee he ERE LEE e YRS GS Re E oboe 41 Example Current Adjustments 2x49 HERE rien 41 Chapter 6 Replaceable Parts 4 229 aoe Soe ese wa we a 43 lunc 4 84 a ae ESS EEE ER OES HOA GMS TT 43 Exchange Assembles
24. 26742 1102 1 103 02 A1J203 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J301 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J302 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J303 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J401 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J402 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J403 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1P1 1252 1596 1 CONN POST TYPE 2 54 PIN SPCG96 CONT 06776 DIN 96CPC SRI TR 0361 1294 2 RIVET SEMITUBULAR 095 DIA 328 LNG 00000 ORDER BY DESCRIP A1SW1 3101 3066 1 SWITCH DIP RKR SPST 0 1A 5VDC 81073 76YY22968S A1TB1 0360 2390 4 TERMINAL BLOCK 4POS SCREW TYPE 28480 0360 2390 A1TB2 0360 2390 TERMINAL BLOCK 4POS SCREW TYPE 28480 0360 2390 A1TBS3 0360 2390 TERMINAL BLOCK 4POS SCREW TYPE 28480 0360 2390 A1TB4 0360 2390 TERMINAL BLOCK 4POS SCREW TYPE 28480 0360 2390 MECHANICAL PARTS MP1 E1300 451017 1 HNDL KIT TOP HP 28480 E1300 45101 MP2 E1300 451027 1 HNDL KIT BTM VXI 28480 E1300 45102 PNL1 E1328 00202T 1 PNL RR 4 CH DAC 28480 E1328 00202 SCR1 SCR2 0515 1968 2 SCR THD RLG M2 5 X0 45 14mm 28480 0515 1968 SCR3 SCR4 0515 2140 2 SCR 28480 0515 2140 SCR5 SCR6 0515 2743 2 SCR FH M2 5 X 8 THREAD ROLLING 28480 0515 2743 SHD1 E1300 80601 1 SHIELD SAFETY 28480 E1300 80601 MNL1 E1328 90004 1 MNL USERS E1328A 28480 E1328 90004 See T
25. 4 5 70 REPEAT 80 PRINT TABXY 1 1 Voltage Compliance Tests on Channel Chan 90 Source Source 5 100 Old value Value 110 PRINT TABXY 4 9 Set source to Source Volts DC 120 PRINT TABXY 4 10 Measure channel output in V 130 INPUT Enter channel output in V Value 140 PRINT TABXY 4 5 DC Source value Source VDC 150 PRINT TABXY 4 6 Channel Chan output Value VDC 160 Result Value Old value 170 UNTIL Result 0 180 IF Value gt 15 THEN Pass PASSED 190 IF Value lt 15 THEN Pass FAILED 200 CLEAR SCREEN 210 PRINT TABXY 1 8 Maximum Channel Chan output Nalue Volts 220 PRINT TABXY 1 9 Test Pass for Channel Chan 230 DISP Press Continue for next channel 240 PAUSE 250 CLEAR SCREEN 260 NEXT Chan 270 END Current These tests measure the current compliance on each channel of the DAC Compliance Tests Positive Current Compliance Tests For positive current compliance tests each channel to be tested is set for UNCALIBRATED MAX current output 24 mA A DC source and HP 3458A are connected to the channel to be tested The source is set to 12V and increased in 0 5V steps until the channel output decreases to 90 of the maximum current value decreases to 21 6 mA If the DC SOURCE voltage is 2 13V when the channel output decreases to 90 of maximum current the test passes 24 Verification Tests Chapter 4 E lo Equipment Setup Negative Current
26. Compliance Tests For negative current compliance tests each channel to be tested is set for UNCALIBRATED MIN current output 24 mA A DC source and HP 3458A are connected to the channel to be tested The source is set to 12V and increased in 0 5V steps until the channel output decreases to 90 of the maximum current value decreases to 21 6 mA If the DC SOURCE voltage is 13V when the channel output decreases to 90 of maximum current the test passes Connect the DC source Datron 4708 with Option 10 and HP 3458A multimeter to Channel 1 as shown in Figure 4 2 Be sure to set all three channel jumpers to the I position Then set the DC source output to 12 0 Vdc Set the HP 3458A to DCI function and set NPLC 100 NOTE For best measurement accuracy perform an HP 3458A multimeter ACAL not more than 24 hours prior to these tests HP 528A DAC j HP 53455A V AE feo N I H H y I E Ma Jr LA d EI SU E JLH E Deo N mm ER DC E B p Source dT E pra E VB Figure 4 2 Current Compliance Test Connections Chapter 4 Verification Tests 25 Test Procedure Positive Current Compliance Test Procedure Negative Current Compliance 1 2 Set three jumpers on each channel to the I position Connect source and HP 3458A to Channel 1 see Figure 4 2 Set non cal mode on Channel 1 with CALI STAT OFF Set Channel 1 max output 24 mA w
27. Contents HP E1328A Service Manual Edition 2 Click here to return to HP TS 5400 Systems On Line Manuals Main Contents Chapter 1 General Information ee eee eee eee renee eens 9 nc A 9 Salety Considerations ser euo vou y wow Yo d ea AAA 10 Marines and Calo aaa RR Rabe a eS d 10 DAL DESC 6 6 26dpe kao ire A 12 DAC PECADOS res A OARS AA 12 DAC seul Nies geerntet 13 DAC OPIO asc ae d dede poe ge erede d deed i cp ode dou ede 13 Recommended Test Equipment 42 eser oe o o o kebide arek 14 Chapter 2 Installation 4999 ke wr Y Xxx REX BCE AR a Ex 15 TOMOS 2 4 9 46 2 d 9 A dede do ooo Rodeo 15 Initial Inspection 22 os xk x 4440854460 AA RON dL 15 Pr paration ior Use ci nouas R9 REOR EROR ha EERE EHS 15 SUPE COSE eE 2 e BA ea 16 Chapter 3 Operating Instructions o 17 A MC TT 17 DA Cunyelter Operation ari erm SEC Cau dk e AA 17 WEIS s REC iio edd aaa 17 Seli Tent PROCEDE a A AAA RR A de OA 18 Example D A Converter Self Test eue udo s prex qw ewe weed 18 Chapter 4 Verification Tesis s ss ur ua oo ok ORO un EO om n 19 lice edt ee ee ARANA AR A AAA AA 19 Test Connon Prodis e iras A RS 19 Performance Test Record quede AAA eA exe e Sh Be ROS dias 20 Verification Test Examples 2244844482884 48845626489 4 Ah ie 20 Punchonal Ven eatioN Vests suo se AAA 21 EU SB TESE 6 a opa debo d dead ge Bob De de de dede S d dd zl voltage Compliance TER auc d ue ek raro a
28. D A Converter Serial Numbers in Chapter 1 for HP E1328A D A Converter serial number information Chapter 7 Manual Changes 47 48 Manual Changes Chapter 7 Chapter 8 Service Introduction WARNING Equipment Required Service Aids This chapter contains information to service the HP E1328A D A Converter DAC including trouble shooting guidelines and repair maintenance guidelines Do not perform any of the service procedures shown unless you are a qualified service trained person and have read the WARNINGS and CAUTIONS in Chapter 1 Equipment required for DAC trouble shooting and repair is listed in Table 1 2 Recommended Test Equipment To avoid damage to the screw head slots use Pozidrive or Torx drivers as required Service aids on printed circuit boards include pin numbers some reference designations and assembly part numbers See Chapter 6 Replaceable Parts for descriptions and location of HP E1328A replaceable parts Service notes manual updates and service literature for the HP E1328A DAC may be available through Hewlett Packard For information contact your nearest Hewlett Packard Sales and Service Office Troubleshooting Techniques Identifying the Problem There are two main steps to trouble shoot an HP E1328A DAC problem 1 identify the problem and 2 test the DAC to isolate the cause to a user replaceable component DAC problems can be divided into four general categories
29. P 3458A multimeter to Channel 1 as shown in Figure 4 1 Be sure to set all three jumpers on the channel to the V position Set the DC source output to 5 0 V dc Set the HP 3458A to DCV function and set NPLC 100 Chapter 4 Verification Tests 21 NOTE HP E1328A DAC For best measurement accuracy perform an HP 3458A multimeter ACAL not more than 24 hours prior to these tests TTT boo mmm nomm om ononon MTT mmm EX Figure4 1 Voltage Compliance Test Connections Test Procedure Positive Voltage Compliance 1 Set three jumpers on each channel to the V position 2 Connect DC Source and HP 3458A to Channel 1 see Figure 4 1 3 Set non cal mode on Channel 1 with CAL1 STAT OFF 4 Set Channel 1 to max voltage output 12V with VOLT1 MAX 5 Set DC source to SV and measure channel output in V 6 Increase DC source output by 0 5V and measure new channel output in V 7 Repeat step 6 until channel output stops increasing If the output voltage is 15 0V when the output stops increasing the test passes 8 Repeat steps 2 through 7 for Channels 2 3 and 4 use CALchan STAT OFF and VOLTchan MAX 9 Remove power and disconnect test equipment 22 Verification Tests Chapter 4 Test Procedure Negative Voltage Compliance 1 Set three jumpers on each channel to the V position 2 Connect DC Sou
30. R Meas Chan l gt Ulim Chan l THEN 240 PRINT TABXY 1 9 Test FAILED on Channel Chan for Volts Chan l V 250 ELSE 260 PRINT TABXY 1 9 Test PASSED on Channel Chan for Volts Chan l V 270 END IF 280 NEXT I 290 NEXT Chan 300 PRINT TABXY 1 18 Voltage Accuracy Tests Complete 310 END is test checks current output accuracy on Channels 1 2 3 and 4 of the Counter Accuracy Thi heck p y on Channels 1 2 3 and 4 of th Measurements Test DAC The current output levels checked are 20 mA 16 mA 10 mA 4 mA 0 mA 4 mA 10 mA 16 mA and 20 mA Equipment Setup Connect the equipment as shown in Figure 4 4 Be sure the three jumpers in each DAC channel are set to the I current position Then set the HP 3458A to DCI function and set NPLC 100 e Position Figure 4 4 Current Measurement Accuracy Connections Chapter 4 Verification Tests 31 NOTE The value of 500 Q in Figure 4 4 is the factory value used for original measurements If you previously calibrated your DAC with a different resistance value use that resistance value rather than 500 Q Test Procedure 9 Set three jumpers on each channel to the I position Connect HP 3458A and 500 Q resistor to Channel 1 see Figure 4 4 Set HP E1328A DAC to default with RST Set Channel 1 to calibrated mode with CAL1 STAT ON Output 20 mA on Channel 1 with CURRI 02000 Mea
31. Safety Class 1 equipment equipment having a protective earth terminal an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes For continued protection against fire replace the line fuse s only with fuse s of the same voltage and current rating and type DO NOT use repaired fuses or short circuited fuse holders Keep away from live circuits Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers or shields are for use by service trained personnel only Under certain conditions dangerous voltages may exist even with the equipment switched off To avoid dangerous electrical shock DO NOT perform procedures involving cover or shield removal unless you are qualified to do so DO NOT operate damaged equipment Whenever it is possible that the safety protection features built into this product have been impaired either through physical damage excessive moisture or any other reason REMOVE POWER and do not use the product until safe operation can be verified by service trained personnel If necessary return the product to a Hewlett Packard Sales and Service Office for service and repair to ensure that safety features are maintained DO NOT service or adjust alone Do not attempt internal service or adjustment
32. able 6 2 for Reference Designator definitions See Table 6 3 for Code List of Manufacturers a Repair limited to replacement of parts listed see Introduction for ordering information T These parts are not compatible with older version fixed handles or their corresponding front panels To replace one or more of these old parts you must order all three new parts Top and Bottom Handle Kits AND External Panel 44 Replaceable Parts Chapter 6 Table 6 2 HP E1328A Reference Designators E AE E A RHET bracket P manual PNL euin panel SOR UE ee E screw SHD eee shield OW airis switch TB ILE SLIDE terminal block 00000 06776 26742 28480 75915 81073 Table 6 3 HP E1328A Code List of Manufacturers Any satisfactory supplier Robinson Nugent Inc Methode Electronics inc Hewlett Packard Company Littelfuse Inc Grayhill Inc New Albany IN US 47150 Chicago IL 60656 Palo Alto CA US 94304 Des Plaines IL US 60016 La Grange IL US 60525 Chapter 6 Replaceable Parts 45 Figure 6 7 HP E1328A DAC Replaceable Parts 46 Replaceable Parts Chapter 6 Chapter 7 Manual Changes Introduction This chapter contains information to adapt this manual to instruments for which the content does not directly apply Since this manual applies directly to instruments with serial numbers listed on the title page change information is not required See
33. aximum current the program generates a Test FAILED indication Positive Current Compliance Test E1328A include lt stdio h gt include lt math h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float source 0 value 0 result 0 int chan char pass if defined __BORLANDC__ amp amp defined __WIN32__ _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session for chan 2 1 chan lt 4 chan iprintf id CAL u STAT OFF n chan iprintf id CURR u MAX n chan Appendix B Verification Tests C Programs 63 source 11 5 value 0 printf nCurrent Compliance Tests on Channel u chan do source source 0 5 printf n Set source to 1f Volts DC source printf n Measure channel output in mA printf n Enter channel output in mA scanf f amp value result abs 100 value 24 0 printf n DC Source value 1f VDC source printf n Channel u output 1f mA chan value printf n Output 2f of max value result while result gt 90 0 if source gt 13 0 pass PASSED else pass FAILED printf n nDC Source value for 90 of max 1f VDC source printf nTest s for channel u n pass chan iclose id Close instrument session
34. be floated up to 350 Vdc from ground Each channel can be calibrated electronically to 24 hour specifications Current 1 2 3 4 Output DC current up to 21 8 mA independently on DAC each channel Connect multiple channels in parallel to increase the output to 96 mA for a single module All four channels are independently isolated and may be floated up to 350 Vdc from ground Each channel can be calibrated electronically to 24 hour specifications DAC Specifications DAC specifications are listed in Appendix A of the HP E1328A Users Manual These specificaitions are the performance standards or limits against which the instrument may be tested 12 General Information Chapter 1 DAC Serial Numbers DAC Options DACS covered by this manual are identified by a serial number prefix listed on the title page Hewlett Packard uses a two part serial number in the form XXXXAYYYYY where XXXX is the serial prefix A is the country of origin A 2 USA and Y Y Y Y Y is the serial suffix The serial number suffix is assigned sequentially to each instrument If the serial number prefix of your instrument is greater than the one listed on the title page a Manual Update as required will explain how to adapt this manual to your instrument If the serial number prefix is lower than the one listed on the title page information contained in Chapter 7 Manual Changes explains how to adapt this manual to your instrument The
35. d into becomes a part of other HP products During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Hewlett Packard HP Buyer shall prepay ship ping charges to HP and HP shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to HP from another country HP warrants that its software and firmware designated by HP for use with a product will execute its programming instructions when properly in stalled on that product HP does not warrant that the operation of the product or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied products or inter facing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance The design and implementation of any circuit on this product is the sole responsibility of the Buyer HP does not warrant the Buyer s circuitry or malfunctions of HP products that result from the Buyer s circuitry In addition HP does not warrant any damage that occurs as a result of the Buyer s circuit or any defects that result from
36. ditions ror valid tests all test equipment and the HP 3458A multimeter must have a Procedures one hour warmup the line voltage must be 115 230 Vac 10 and HP 3458A ACAL must be performed no more than 24 hours before the tests See Table 1 2 Recommended Test Equipment for test equipment requirements For best test accuracy the ambient temperature of the test area should be between 18 C and 28 C and stable to within 1 C You should perform the Performance Verification tests at least once a year For heavy use or severe operating environments perform the tests more often The verification tests assume the person performing the tests understands how to operate the mainframe the DAC and specified test equipment The test procedures do not specify equipment settings for test equipment except in general terms It is assumed a qualified service trained person will select and connect the cables adapters and probes required for the test Chapter 4 Verification Tests 19 Performance Test Table 4 2 Performance Test Record for the HP E1328A DAC at the end of Record this chapter provides space to enter the results of each Performance Verification test and to compare the results with the upper and lower limits for the test You can make a copy of this form if desired NOTE The upper and lower limits in the Performance Test Record assume the test equipment used is calibrated and operating at peak performance If this is not the case p
37. ef iprintf id VOLT u MAX n chan printf nChannel u is set to maximum 12V chan printf nEnter measured value in V to 5 5 digits scanf f amp max iprintf id CAL u VOLT f f f n chan min def max 68 Verification Tests C Programs Appendix B printf n nVoltage Adjustments Complete iclose id Close instrument session Example Current This program uses the measured minimum default and maximum values Adjustments you enter to update the current adjustment constants for Channels 1 2 3 and 4 Current Adjustments E1328A include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float min def max int chan if defined __BORLANDC amp amp defined __WIN32__ _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session for chan 1 chan lt 4 chan printf nCurrent Adjustments on Channel u chan iprintf id CAL u STAT OFF n chan iprintf id CURR u MIN chan printf n nChannel u is set to minimum 024 A chan printf nEnter measured value in A to 5 5 digits scanf f amp min iprintf id CURR u DEF n chan printf nChannel u is set to default 0 A chan printf nEnter measured value in A to 5 5 digits scanf
38. efficient 3 of output 110 mV 0 01 output 667 mV C For 1 year specifications and 5 C difference from calibration temperature DC Voltage Accuracy in Volts 0035 x output 11334 where output is in Volts Example Calculate DC Voltage Output Accuracy For a 5 0 V dc output DCV Accuracy 1 year 0035 x 5 0 11334 2 0 13084V Thus for a 5 0 V output the Upper Limit value in Table 4 2 5 13084 V and the Lower Limit value 4 86916 V From Appendix A of the HP E1328A User s Manual DC Current Accuracy 1 year Accuracy Temperature Coefficient 3 of output 220 WA 01 of output 1 33 LA C For 1 year specifications and 5 C difference from calibration temperature DC Current Accuracy in A 0035 x output 226 65 X 10 where output is in Amps Example Calculate DC Current Output Accuracy For a 10 0 mA dc output Accuracy 1 year 0035 x 10 0 x 10 226 65 x 10 0 26165 mA Thus for a 10 0 mA output the Upper 56 Calculating D A Converter Accuracy Appendix A HP 3458A Measurement Uncertainty Calculations Calculate DCV Measurement Uncertainty Limit value in Table 4 2 10 26165 mA and the Lower Limit value 9 73835 mA Measurement uncertainties for the HP 3458A multimeter are calculated using the 1 year accuracy specifications in Appendix A Specifications of the HP 3458A Multimeter Operating Programming and Configurat
39. embly part number Contact your nearest Hewlett Packard Sales and Service Office for details To order a part listed in Table 6 1 specify the Hewlett Packard part number and the quantity required Send the order to your nearest Hewlett Packard Sales and Service Office Chapter 6 Replaceable Parts 43 Replaceable Parts List Table 6 1 HP E1328A Replaceable Parts lists the replaceable parts for the HP E1328A D A Converter See Figure 6 1 page 6 4 for locations of parts listed in Table 6 1 Table 6 1 HP E1328A Replaceable Parts EXCHANGE ASSEMBLIES E1328 66201 1 4 CHAN D A CONVERTER NEW 28480 E1328 66201 E1328 69201 1 4 CHAN D A CONVERTER EXCH 28480 E1328 69201 A1 E1328 66501 1 PRINTED CIRCUIT ASSY a 28480 E1328 66501 A1BRK1 0500 2183 2 BRACKET RIGHT ANGLE MTG PNL PCB 28480 0050 2183 0361 1295 2 RIVET SEMITUBULAR 095 DIA 406 LNG 00000 ORDER BY DESCRIP A1BRK2 0500 2183 BRACKET RIGHT ANGLE MTG PNL PCB 28480 0050 2183 0361 1295 RIVET SEMITUBULAR 095 DIA 406 LNG 00000 ORDER BY DESCRIP A1F1 2 2110 0712 2 FUSE SUBMINIATURE 4A 125V NTD AX 75915 R251004T1 A1J101 1251 4682 12 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J102 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J103 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J201 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT 26742 1102 1 103 02 A1J202 1251 4682 CONN POST TYPE 100 PIN SPCG 3 CONT
40. er Software clause at 52 227 7013 Hewlett Packard Company 3000 Hanover Street Palo Alto California 94304 Declaration of Conformity According to ISO IEC Guide 22 and EN 45014 The Hewlett Packard Company declares that the HP E1328A conforms to the following Product Specifications Safety IEC 1010 1 1990 Incl Amend 1 1992 EN61010 1993 CSA C22 2 1010 1 1992 UL 1244 EMC CISPR 11 1990 EN 55011 1991 Groupl Class A TEC 801 2 1991 EN 50082 1 1992 4kVCD 8kVAD TEC 801 3 1984 EN 50082 1 1992 3 V m TEC 801 4 1988 EN 50082 1 1992 IkV Power Line Supplementary Information The product herewith complies with the requirements of the low voltage Directive 73 23 EEC and the EMC Direc tive 89 336 EEX Tested in a typical configuration in an HP C size VXI mainframe ped Manager June 1996 Hewlett Packard Company P O Box 301 815 14th Street S W Loveland Colorado 80539 U S A Printing History The Printing History shown below lists all Editions and Updates of this manual and the printing date s The first printing of the manual is Edi tion 1 The Edition number increments by 1 whenever the manual is revised Updates which are issued between Editions contain replacement pages to correct the current Edition of the manual Updates are numbered sequentially starting with Update 1 When a new Edition is created it contains all the Update information for the previous Edition Each new Edition or Update also includes a revised
41. eshoooting 14 General Information Chapter 1 Chapter 2 Installation Introduction This chapter provides information to install the HP E1328A D A Converter including initial inspection preparation for use environment storage and shipment Initial Inspection WARNING Preparation for Use Inspect the shipping container for damage If the shipping container or cushioning material is damaged keep the container until the shipment contents have been checked and the instrument has been checked mechanically and electrically See Chapter 1 Figure 1 1 for shipment contents See Chapter 4 for procedures to check electrical performance To avoid possible hazardous electrical shock do not perform electrical tests if there are signs of shipping damage to any portion of the outer enclosure covers panels etc If the contents are incomplete if there is mechanical damage or defect or if the instrument does not pass the electrical performance tests notify your nearest Hewlett Packard Sales and Service Office If the shipping container is damaged or the cushioning material shows signs of stress notify the carrier as well as Hewlett Packard and keep the shipping materials for the carrier s inspection See Chapter 2 of the HP E1328A User s Manual to prepare the HP E1328A D A Converter for use See the appropriate mainframe user s manual s to prepare your mainframe If your mainframe is not manufactured by Hewl
42. ett Packard consult the manufacturer for a list of available manual s Recommended operating environment for the HP E1328A D A Converter is 0 C to 55 C with humidity lt 65 relative 0 C to 40 C The instrument should be stored in a clean dry environment For storage and shipment the temperature range is 40 C to 75 C with humidity lt 65 relative humidity 0 C to 40 C Chapter 2 Installation 15 S h I pp ng Follow the steps in Figure 2 1 to return the HP E1328A D A Converter to a G u id el in es Hewlett Packard Sales and Support Office or Service Center 1 Prepare the D A Converter e Remove user wiring from the module e Attach tag to module pod that identifies Owner Model Number Serial Number Service Required e Place tagged device in approved anti static bag 2 Package the D A Converter Place packaged D A Converter in shipping carton e Place 75 to 100 mm 3 to 4 inches of shock absorbing material around the D A Converter Seal the shipping carton securely Mark the shipping carton FRAGILE 3 Ship the D A Converter to Hewlett Packard e Place address label on shipping carton e Send carton to Hewlett Packard Figure 2 1 Packaging Shipping Guidelines We recommend that you use the same shipping materials as those used in factory packaging available from Hewlett Packard For other commercially available shipping materials use a double wall carton with minimum 2 4 MPa 350 psi test
43. for procedures 50 Service Chapter 8 Table 8 1 HP E1328A DAC Error Messages 330 Self Test Failure 240 Hardware Failure 221 Jumper Settings 2801 Channel 1 current checksum error 2802 Channel 2 current checksum error 2803 Channel 3 current checksum error 2804 Channel 4 current checksum error 2805 Channel 1 voltage checksum error 2806 Channel 2 voltage checksum error 2807 Channel 3 voltage checksum error 2808 Channel 4 voltage checksum error Module malfunction Module malfunction Channel s V I jumper in incorrect position Channel 1 stored adjustment constant current is corrupted Channel 2 stored adjustment constant current is corrupted Channel 3 stored adjustment constant current is corrupted Channel 4 stored adjustment constant current is corrupted Channel 1 stored adjustment constant voltage is corrupted Channel 2 stored adjustment constant voltage is corrupted Channel 3 stored adjustment constant voltage is corrupted Channel 4 stored adjustment constant voltage is corrupted Table 8 2 HP E1328A Tests Checks Heat Damage Discolored PC boards Damaged insulation Evidence of arcing Switch Setting Swi LADDR setting A1 PCA F1 F2 Fuse continuity J101 J402 Mating connector contacts P1 jumper in wrong position TB1 TB4 Connector contacts Checking Heat Damage Service 51 Inspect the DAC for signs of abnormal internally ge
44. grounded to prevent electrostatic discharge from damaging CMOS devices Post Repair Safety After making repairs to the HP E1328A DAC inspect the DAC for any Checks _ Signs of abnormal internally generated heat such as discolored printed circuit boards or components damaged insulation or evidence of arcing Determine and correct the cause of the condition Then run the self test TST command to verify that the DAC is functional Chapter 8 Service 53 54 Service Chapter 8 Appendix A Calculating D A Converter Accuracy I ntrod u ctio n This appendix shows how D A Converter DAC accuracy HP 3458A multimeter measurement uncertainty and test accuracy ratio TAR values are defined and calculated for the performance verification tests for the HP E1328A DAC See Table 4 2 Performance Test Record for the HP E1328A DAC for 1 year specification values for DAC accuracy 1 year measurement uncertainty values for the HP 3458A multimeter and associated DAC test accuracy ratios TARs NOTE DAC accuracy multimeter measurement uncertainty and test accuracy ratios in Table 4 2 are valid ONLY for the specified test conditions and assumptions described in this manual For the test conditions described in TARs exceed 4 1 DAC Accuracy DAC accuracy is the expected accuracy of the measurement due ONLY to Definition the D A Converter The Low Limit entry in Table 4 2 is the lower value of DAC accuracy while the High Limit
45. h CAL1 STAT ON 5 Output 10V on Channel 1 with VOLTI 10 0000 6 Measure Channel 1 output voltage with HP 3458A and compare with limits in Table 4 2 7 Repeat steps 5 and 6 for 8V 5V 2V 0V 42V 5V 8V and 10V 8 Repeat steps 2 through 7 for Channels 2 3 and 4 use CALchan STAT ON and VOL Tchan value 9 Remove power and disconnect test equipment This program checks the MEASURED output voltage on each DAC channel and compares the result with the 1 year accuracy specifications for the DAC see Appendix A Calculating D A Converter Accuracy for a discussion of DAC accuracy 10 Voltage Accuracy Measurements Test 20 30 OPTION BASE 1 40 DIM Volts 4 9 50 DATA 10 8 5 2 0 2 5 8 10 60 DATA 10 8 5 2 0 2 5 8 10 70 DATA 10 8 5 2 0 2 5 8 10 80 DATA 10 8 5 2 0 2 5 8 10 90 READ Volts 100 OUTPUT 70909 RST 110 FOR Chan 1 TO 4 120 FORI 1TO9 130 OUTPUT 70909 VOLT amp VAL Chan amp Volts Chan l 140 PRINT TABXY 1 2 Voltage Accuracy Measurements on Channel Chan 30 Verification Tests Chapter 4 150 PRINT TABXY 1 10 New voltage output on Channel Chan Volts Chan l V 160 PRINT 170 INPUT Enter MEASURED voltage value in V Meas Chan l 180 GOSUB Accuracy 190 Accuracy 200 Acc Chan l 0085 ABS Volts Chan l 11334 210 Llim Chan l Volts Chan l Acc Chan l 220 Ulim Chan l Volts Chan l Acc Chan l 230 IF Meas Chan l lt Llim Chan l O
46. ion Manual The assumed test conditions are Test within 24 hours of last HP 3458A ACAL 1 year since last HP 3458A calibration At least a 1 hour warmup for HP 3458A For DCV 10V fixed range PRESET and NPLC 100 For DCI 10 mA or 100 mA fixed range PRESET and NPLC 100 For HP 3458A 1 Year specifications Measurement Uncertainty DC Voltage Accuracy 1 year Temperature Coefficient Additional reading error for Absolute Accuracy Accuracy 8 0 ppm of Reading 0 2 ppm of Range Temp Coeff 0 15 ppm of Reading 0 01 DRE of Range Meas Uncert V 10 15 pr ppm of Reading 0 21 ppm of Range Reading and Range in Volts DC Calculate DCI Measurement Uncertainty Example Calculate DCV Measurement Uncertainty For a 5 0 V dc reading on the 10V range for the conditions specified in this manual Measurement Uncertainty V 10 15 x 109 x Reading 0 21 x 10 x Range uo x 10 15 x 5 0 0 21 x 10 0 52 85 x 10 y 52 85 uV For HP 3458A 1 Year specifications Measurement Uncertainty DC Current Accuracy 1 year Temperature Coefficient Additional reading error for Absolute Accuracy For the 10 mA range Appendix A Calculating D A Converter Accuracy 57 Accuracy 10 mA range 20 0 ppm of Reading 5 0 ppm of Range Temp Coeff 2 0 pom of Benz 1 0 ppm of Range Meas Uncertainty A 127 or ppm of Reading 6 0 pp of Range Reading and Range in Amps DC
47. ith CURR1 MAX Set DC source to 12 0V and measure channel output in mA Increase DC source output by 0 5V and measure channel output in mA Repeat step 6 until channel output is 90 of max 21 6 mA If the SOURCE voltage is 2 13 0V when the output decreases to 90 of max the test passes Repeat steps 2 through 7 for Channels 2 3 and 4 Use CALchan STAT OFF and CURRchan MAX Remove power and disconnect test equipment Set three jumpers on each channel to the I position Connect source and HP 34584 to Channel 1 see Figure 4 2 Set non cal mode on Channel 1 with CALI STAT OFF Set Channel 1 min current output 24 mA with CURR1 MIN Set DC source to 12 0V and measure channel output in mA Increase DC source output by 0 5V and measure channel output in mA Repeat step 6 until channel output is 9096 of min 21 6 mA If the SOURCE voltage is lt 13 0V when the output decreases to 90 of min the test passes Repeat steps 2 through 7 for Channels 2 3 and 4 use CAL chan STAT OFF and CURR chan MIN 26 Verification Tests Chapter 4 9 Remove power and disconnect test equipment Example Positive This program checks the MEASURED current output from the DAC Current Compliance channel being tested If the DC SOURCE voltage is 2 13 0V when the output current drops to 90 of maximum current the program generates a test PASSED indication If the DC SOURCE voltage is lt 13 0V when the ou
48. jectives are to instill a high degree of confidence that the HP E1328A 4 Channel D A Converter is meeting selected specifications from those listed in Appendix A Specifications in the HP E1328A User s Manual Operation verification tests can be used in applications such as incoming inspection and after HP E1328A repair To perform operation verification tests do the parts of the performance verification tests shown in Table 4 1 See Performance Verification Tests for details on the test procedures For best results perform an ACAL on the HP 3458A multimeter not more than 24 hours prior to performing the operation verification tests If the operation verification test FAILS on any channel you may want to perform the Voltage Adjustment and or Current Adjustment procedures in Chapter 5 Adjustments and then rerun the operation verification tests Table 4 1 HP E1328A DAC Operation Verification Tests Voltage Accuracy 10V OV 10V Current Accuracy 20 mA 0 mA 20 mA 28 Verification Tests Chapter 4 Performance Verification Tests NOTE Voltage Accuracy Measurements Test Equipment setup HP J0000000 E1528A DAC Performance verification tests objectives are to instill a high degree of confidence that the HP E1328A 4 Channel D A Converter DAC is meeting the specifications listed in Appendix A Specifications of the HP E1328A User s Manual Performance verification tests are requi
49. necting the protective earth terminal will cause a potential shock hazard that could result in personal injury Grounding one conductor of a two conductor outlet is not sufficient protection IMPAIRED PROTECTION Whenever it is likely that instrument protection has been impaired the mainframe must be made inoperative and be secured against any unintended operation REMOVE POWER IF POSSIBLE Some procedures in this manual may be performed with power supplied to the mainframe while protective covers are removed Energy available at many points may if contacted result in personal injury If maintenance can be performed without power applied the power should be removed 10 General Information Chapter 1 USING AUTOTRANSFORMERS If the mainframe is to be energized via an autotransformer for voltage reduction make sure the common terminal is connected to neutral that is the grounded side of the main s supply WARNING CAPACITOR VOLTAGES Capacitors inside the mainframe may remain charged even when the mainframe has been disconnected from its source of supply USE PROPER FUSES For continued protection against fire hazard replace the line fuse s only with fuses of the same current rating and type such as normal blow time delay etc Do not use repaired fuses or short circuited fuseholders CAUTION MAXIMUM VOLTAGE Maximum voltage that may be applied between any two terminals within the same channel is 15 Vdc Do n
50. nerated heat such as discolored printed circuit boards or components damaged insulation or evidence of arcing If there is damage do not operate the DAC until you correct the problem Checking Switches Jumpers Verify the logical address setting is set correctly factory set at 72 See the HP E1328A User s Manual for information Testing the A1 Assembly To test the Al Assembly remove mainframe power and remove the DAC from the mainframe Then see table 8 2 for guidelines to isolate the problem to a user replaceable part Repair Maintenance Guidelines ESD Precautions This section gives guidelines to repair and maintain the HP E1328A DAC including e ESD precautions e Soldering printed circuit boards e Post repair safety checks Electrostatic discharge ESD may damage MOS CMOS and other static sensitive devices in the HP E1328A DAC This damage can range from slight parameter degradation to catastrophic failure When handling DAC assemblies follow these guidelines to avoid damaging DAC components e Always use a static free work station with a pad of conductive rubber or similar material when handling DAC components e After you remove the DAC from the mainframe place the DAC on a conductive surface to guard against ESD damage Do not use pliers to remove a MOS or CMOS device from a high grip socket Instead use a small screwdriver to pry the device up from one end Slowly lift the device up one pair of pi
51. ns at a time 52 Service Chapter 8 e After you remove a MOS or CMOS device from an assembly place the device onto a pad of conductive foam or other suitable holding material e f a device requires soldering be sure the assembly is placed on a pad of conductive material Also be sure you the pad and the soldering iron tip are grounded to the assembly Apply as little heat as possible when soldering When you replace a MOS or CMOS device ground the foam to the DAC before removing the device from the foam Soldering Printed The etched circuit boards in the DAC have plated through holes that allow a Circuit Boards solder path to both sides of the insulating material Soldering can be done from either side of the board with equally good results When soldering to any circuit board keep in mind the following guidelines CAUTION Do not use a sharp metal object such as an awl or twist drill since sharp objects may damage the plated through conductor Avoid unnecessary component unsoldering and soldering Excessive replacement can result in damage to the circuit board and or adjacent components Do not use a high power soldering iron on etched circuit boards a 38 watt soldering iron is recommended as excessive heat may lift a conductor or damage the board Use a suction device or wooden toothpick to remove solder from component mounting holes When using a suction device be sure the equipment is properly
52. o non calibrated mode with CAL1 STAT OFF 4 Set Channel 1 to minimum output 12V with VOLTI MIN Measure and record to 5 1 2 digits the actual output voltage 5 Set Channel 1 to default output 0V with VOLT1 DEF Measure and record to 5 1 2 digits the actual output voltage 6 Set Channel 1 to maximum output 12V with VOLT1 MAX Measure and record to 5 1 2 digits the actual output voltage 7 Enter recorded minimum default and maximum values with CAL1 VOLT min def max The adjustment constants are automatically updated and stored 8 Repeat steps 1 through 7 for channels 2 3 and 4 as desired use CALchan STAT OFF VOL Tchan value and CALchan VOLT values 9 Remove power and disconnect power equipment Example Voltage This program uses the measured minimum default and maximum values prog Adjustments you enter to update the voltage adjustment constants for Channels 1 2 3 and 4 10 Voltage Adjustments 30 DISP CHR 129 40 FOR Chan 1 TO 4 50 PRINT TABXY 1 1 Voltage Adjustments on Channel Chan 60 OUTPUT 70909 CAL amp VAL Chan amp STAT OFF 70 OUTPUT 70909 VOLT amp VAL Chan amp MIN 80 PRINT TABXY 1 18 Channel Chan is set to minimum 12V 90 INPUT Enter measured value in V to 5 5 digits Min 100 OUTPUT 70909 VOLT amp VAL Chan amp DEF 110 PRINT TABXY 1 18 Channel Chan is set to default OV 120 INPUT Enter measured value in V to 5 5 digits Def 130 OUTPUT 70909 VOLT
53. or 1f V chan volts i else printf Test PASSED on channel u for 1f V chan volts i printf Voltage Accuarcy Tests Complete iclose id Close instrument session Example Current This program checks the MEASURED output current on each DAC channel Accu racy and compares the result with the 1 year accuracy specifications for the DAC Measurements Current Accuracy Measurements Test E1328A include lt stdio h gt include lt math h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float amps 9 02 016 01 004 O 004 01 016 02 float acc ulim llim meas int chan i if defined __ BORLANDC amp amp defined WIN32 _InitEasyWin endif ionerror ERROR EXIT Exit on error id iopen ADDR Open instrument session iprintf id RST n for chan 2 1 chan lt 4 chan 66 Verification Tests C Programs Appendix B printf nCurrent Accuracy Measurements on Channel u n chan for i 0 i lt 9 i printf id CURR u f n chan amps i printf n New current output on channel u f A chan amps i printf n Enter MEASURED current value in mA scanf f amp meas acc 0 0035 abs amps i 00022665 llim amps i acc ulim amps i acc if meas 001 lt Ilim meas 001 gt ulim
54. ot apply voltage between any pair of terminals if the D A Converter is turned off STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to the electrical components in the DAC observe anti static techniques when removing a DAC from the mainframe or when working on the DAC Also when installing a DAC in a mainframe slot be sure to tighten the front panel screws POWER UP DOWN OUTPUTS At power up or down potentials up to 12V may appear across the channel outputs for up to 10 msec Chapter 1 General Information 11 DAC Description NOTE The HP E1328A DAC is an instrument in the slots of a VXIbus mainframe As such it is assigned an error queue input and output buffers status registers and is allocated a portion of mainframe memory for reading storage Instruments are based on the logical addresses of the plug in modules See the HP 75000 Series B Installation and Getting Started Guide to set the addresses to create an instrument There are two E1328A DAC functions see Table 1 1 solated Voltage DACs e Isolated Current DACs Table 1 1 HP E1328A 4 Channel D A Converter Functions Voltage 1 2 3 4 Output DC voltage up to 10 92 V independently on DAC each channel Can use remote voltage sensing with no fault operation Connect multiple channels in series to increase the output to 48 Vdc for a single module All four channels are independently isolated and may
55. power on sequence test See the HP 75000 Series B System Installation and Getting Started Guide for information on mainframe power on sequence tests 2 Execute the D A Converter self test using the TST command see example following 3 A 0 returned means no self test failure while 330 returned means a failure was detected See Chapter 8 Service for trouble shooting information see NOTE following NOTE Test failures can be caused by improper cabling improper selection of the interface select code primary and or secondary address setting Verify proper connection and address selection before trouble shooting Example D A An example follows which uses an HP 9000 Series 300 computer with HP Converter Self Test BASIC and a D A Converter address of 70909 10 OUTPUT 70909 TST Send the self test command 20 ENTER 70909 A Enter self test result 30 PRINT A 40 END 18 Operating Instructions Chapter 3 Chapter 4 Verification Tests Introd uctio n The three levels of test procedures described in this chapter are used to verify that the HP E1328A D A Converter DAC e is fully functional Functional Verification e meets selected testable specifications Operation Verification e meets all testable specifications Performance Verification WARNING Do not perform any of the following verification tests unless you are a qualified service trained person and have read the WARNINGS and CAUTIONS in Chapter 1 Test Con
56. programs are designed to do the Functional Verification Tests found go in Chapter 4 Verification Tests Verification Test Example Self Test This example performs a DAC self test TST command to ensure that the DAC is communicating with the mainframe external controller and or external terminal include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 9 Address of Device void main INST id Define id as an instrument char a 256 0 Result variable id iopen ADDR Open instrument session itimeout id 10000 Set 10 sec timeout ipromptf id TSTAn t a Self test command printf n s a Print result getchar Pause iclose id Close instrument session Appendix B Verification Tests C Programs 61 Example Positive This program checks the MEASURED voltage output from the DAC Voltage Compl iance channel being tested If the measured channel output is gt 15 0V when the output stops increasing the program generates a Test PASSED indication If the measured channel output is 15 0V when the output stops increasing the program generates a Test FAILED indication Positive Voltage Compliance Test E1328A include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 9 Address of device void main INST id Define id as an instrument float source 0 value 0 old_value 0 result
57. rce and HP 3458A to Channel 1 see Figure 4 1 3 Set non cal mode on Channel 1 with CAL1 STAT OFF 4 Set Channel 1 to min voltage output 12V with VOLT1 MIN 5 Set DC source to 5V and measure channel output in V 6 Increase DC source output by 0 5V and measure new channel output in V 7 Repeat step 6 until channel output stops increasing If the output voltage is 15 0V when the output stops increasing the test passes 8 Repeat steps 2 through 7 for Channels 2 3 and 4 use CAL chan STAT OFF and VOLTchan MIN 9 Remove power and disconnect test equipment Example Positive This program checks the MEASURED voltage output from the DAC Voltage Compl iance channel being tested If the measured channel output is 2 15 0V when the output stops increasing the program generates a test PASSED indication If the measured channel output is 15 0V when the output stops increasing the program generates a test FAILED indication NOTE To use this program for negative voltage compliance tests change the indicated lines as shown 50 OUTPUT 70909 VOLT amp VAL Chan amp MIN 60 Source 4 5 90 Source Source 5 180 IF Value lt 15 THEN Pass PASSED 190 IF Value 15 THEN Pass FAILED Chapter 4 Verification Tests 23 10 Positive Voltage Compliance Tests 30 FOR Chan 1 TO 4 40 OUTPUT 70909 CAL amp VAL Chan amp STAT OFF 50 OUTPUT 70909 VOLT amp VAL Chan amp MAX 60 Source
58. re are no electrical or mechanical options available for the HP E1328A DAC However you can order Option 1BN which provides a MIL STD 45662A Calibration Certificate or Option 1BP which provides the Calibration Certificate and measurement data Contact your nearest Hewlett Packard Sales and Service Office for information on Options IBN and 1BP Chapter 1 General Information 13 Reco mmen d ed Table 1 2 lists the test equipment recommended for testing adjusting and Te st Eq u i pme nt servicing the HP E1328A DAC Essential requirements for each piece of test equipment are described in the Requirements column Table 1 2 Recommended Test Equipment Controller HP IB HP IB compatibility as defined by IEEE HP 9000 Series 300 A F O Standard 488 1978 and the identical or P T ANSI Standard MC1 1 SH1 AH1 T2 IBM compatible PC with TEO L2 LEO SRO RLO PPO DCO DTO HP BASIC and C1 2 3 4 5 Mainframe Compatible with DAC HP E1300A E1301A A F O E1302A or E1401B T P T E1421A requires HP E1306A DC Standard Voltage Range 20 0 V to 20 0 V Datron 4708 with F O P Option 10 Digital Multimeter Voltage Range 10 VDC HP 3458A multimeter A F O Current Range 20 mA DC or P T Accuracy 015 reading 1 mV HP E1326B multimeter t 02 reading 1 uA F Functional Verification Tests O Operation Verification Tests P Performance Verification Tests A Adjustments T Troubl
59. red whenever a calibration is required The HP E1328A DAC performance verification tests are e Voltage Accuracy Measurements e Current Accuracy Measurements For best results you should ACAL the HP 3458A multimeter not more than 24 hours prior to the tests If a DAC channel does not pass the performance tests you may want to do the Voltage Adjustment and or Current Adjustment see Chapter 5 Adjustments and then rerun the performance verification tests This test checks voltage output accuracy on Channels 1 2 3 and 4 of the DAC The voltage output levels checked are 10V 8V 5V 2V OV 12V 5V 8V and 10V Connect the equipment as shown in Figure 4 3 Be sure the three jumpers in each DAC channel are set to the V voltage position Then set the HP 3458A to DCV function and set NPLC 100 a exerc poo Figure 4 3 Voltage Accuracy Measurements Connections Chapter 4 Verification Tests 29 NOTE Test Procedure Example Voltage Accuracy Measurements The value of 1 kQ in Figure 4 3 is the factory value used for original measurements If you previously calibrated your DAC with a different resistance value use that resistance value rather than 1 kQ 1 Set three jumpers on each channel to the V position 2 Connect HP 3458A and 1 kQ resistor to Channel 1 see Figure 4 3 3 Set HP E1328A DAC to default with RST 4 Set Channel 1 to calibrated mode wit
60. roblems can occur For example an uncalibrated HP 3458A multimeter may cause what seems to be an inaccurate measurement This condition must be considered when observed measurements do not agree with the performance test limits The value in the Measurement Uncertainty column of Table 4 2 is derived from the specifications for the HP 3458A multimeter used for the test and represents the expected accuracy of the HP 3438A The value in the Test Accuracy Ratio TAR column of Table 4 2 is the ratio of DAC accuracy to HP 3458A measurement uncertainty If the TAR is lt 10 1 the ratio is rounded to the nearest integer If the TAR is 2 10 1 the TAR is shown as gt 10 1 Verification Test Each Performance Verification Test includes an example program to Examples perform the test Each example uses address 70909 for the DAC and an HP 9000 Series 200 300 computer running HP BASIC commands You may need to change the DAC address and or command syntax to perform the examples for your setup As required see the mainframe user s manual for information on address selection and cabling guidelines See the HP E1328A User s Manual for information on Standard Commands for Programmable Instruments SCPI commands for the DAC 20 Verification Tests Chapter 4 Functional Verification Tests DAC Self Test Voltage Compliance Tests Equipment Setup The functional verification tests for the HP E1328A DAC can be performed at any time to
61. sure Channel 1 output current with HP 3458A and compare with limits in Table 4 2 Repeat steps 5 and 6 for 16 mA 10 mA 4 mA 0 mA 4 mA 10 mA 16 mA and 20 mA Repeat steps 2 through 7 for Channels 2 3 and 4 use CALchan STAT ON and CURRchan value Remove power and disconnect test equipment Example Current This program checks the MEASURED output current on each DAC channel Accuracy and compares the result with the 1 year accuracy specifications for the DAC Measurements See Appendix A Calculating D A Converter Accuracy for a discussion of DAC accuracy 10 Current Accuracy Measurements Test 20 30 OPTION BASE 1 40 DIM Amps 4 9 50 DATA 02 016 01 004 0 004 01 016 02 60 DATA 02 016 01 004 0 004 01 016 02 70 DATA 02 016 01 004 0 004 01 016 02 80 DATA 02 016 01 004 0 004 01 016 02 90 READ Amps 100 OUTPUT 70909 RST 110 FOR Chan 1 TO 4 120 FOR I 1 TO 9 130 OUTPUT 70909 CURR amp VAL Chan amp Amps Chan l 140 PRINT TABXY 1 2 Current Accuracy Measurements on Channel Chan 32 Verification Tests Chapter 4 Performance Test Record NOTE 150 PRINT TABXY 1 10 New current output on Channel Chan Amps Chan l 1 E 3 mA 160 INPUT Enter MEASURED current value in mA Meas Chan l 170 GOSUB Accuracy 180 Accuracy 190 Acc Chan l 0035 ABS Amps Chan l 2 2665E 4 200 Llim Chan l Amps Chan l Acc Chan l
62. the current adjustment constants for Channels 1 2 3 and 4 10 Current Adjustments 20 30 DISP CHR 129 40 FOR Chan 1 TO 4 50 PRINT TABXY 1 1 Current Adjustments on Channel Chan 60 OUTPUT 70909 CAL amp VAL Chan amp STAT OFF 70 OUTPUT 70909 CURR amp VAL Chan amp MIN 80 PRINT TABXY 1 18 Channel Chan is set to minimum 024 A 90 INPUT Enter measured value in A to 5 5 digits Min 100 OUTPUT 70909 CURR amp VAL Chan amp DEF 110 PRINT TABXY 1 18 Channel Chan is set to default 0 A 120 INPUT Enter measured value in A to 5 5 digits Def 130 OUTPUT 70909 CURR amp VAL Chan amp MAX 140 PRINT TABXY 1 18 Channel Chan is set to maximum 4 024 A 150 INPUT Enter measured value in A to 5 5 digits Max Chapter 5 Adjustments 41 160 OUTPUT 70909 CAL amp VAL Chan amp CURR Min Def Max 170 NEXT Chan 180 CLEAR SCREEN 190 PRINT Current Adjustments Complete 200 END 42 Adjustments Chapter 5 Chapter 6 Replaceable Parts Introduction Exchange Assemblies Ordering Information This chapter contains information to order replaceable parts for the HP E1328A D A Converter Table 6 1 lists assemblies that may be replaced on an exchange basis EXCHANGE ASSEMBLIES Exchange factory repaired and tested assemblies are available only on a trade in basis Defective assemblies must be returned for credit Assemblies required for spare parts stock must be ordered by the new ass
63. tput current drops to 9096 of maximum current the program generates a test FAILED indication NOTE To use this program for negative current compliance tests change the indicated lines as shown 50 OUTPUT 70909 CURR amp VAL Chan amp MIN 60 Source 11 5 90 Source Source 5 180 IF Source lt 13 0 THEN Tst PASSED 190 IF Source gt 13 0 THEN Tst FAILED 10 Current Compliance Tests 30 FOR Chan 1 TO 4 40 OUTPUT 70909 CAL amp VAL Chan amp STAT OFF 50 OUTPUT 70909 CURR amp VALS Chan amp MAX 60 Source 11 5 70 REPEAT 80 PRINT TABXY 1 1 Current Compliance Tests on Channel Chan 90 Source Source 5 100 PRINT TABXY 4 10 Set DC source to Source Volts DC 110 PRINT TABXY 4 11 Measure channel output in mA 120 INPUT Enter channel output in mA Value 130 Result ABS 100 Value 24 0 140 PRINT TABXY 4 5 DC Source value Source VDC 150 PRINT TABXY 4 6 Channel Chan output Value mA 160 PRINT TABXY 4 7 Output Result of max value 170 UNTIL Result lt 90 0 180 IF Source gt 13 0 THEN Tst PASSED 190 IF Source lt 13 0 THEN Tst FAILED 200 CLEAR SCREEN 210 PRINT TABXY 4 14 DC Source value for output 90 of max Source VDC 220 PRINT TABXY 4 15 Test Tst for Channel Chan 230 NEXT Chan 240 END Chapter 4 Verification Tests 27 Operation Verification Tests NOTE Operation verification tests ob
64. unless another person capable of rendering first aid and resusci tation is present DO NOT substitute parts or modify equipment Because of the danger of introducing additional hazards do not install substitute parts or per form any unauthorized modification to the product Return the product to a Hewlett Packard Sales and Service Office for service and repair to en sure that safety features are maintained What s in this Manual Manual Overview This manual shows how to service the HP E1328A 4 Channel D A Converter Additional manuals which may be required for servicing the D A Converter include the AP E1328A User s Manual which contains D A Converter operation installation and configuration information and the appropriate mainframe user s manual s for mainframe operation installation and configuration information Manual Content 1 General Provides a basic description and lists available options and Information accessories Also lists the tools and test equipment required for service 2 Installation Procedures to install the D A Converter perform initial inspection prepare for use and store and ship the D A Converter 3 Operating Procedures to operate the D A Converter and perform operator s Instructions check 4 Verification Functional verification operation verification and performance Tests verification tests to test the D A Converter 5 Adjustments Procedures to adjust the D A Con
65. uou cd RR REE E ks RE KASS e RR AREER SESS 43 Ch ernig Iufonneltolis dd edo pe aer ah dd ORR SEES de weed i CR 43 Replaceable PRIS c r rr TT de Ai A adh adh ch 44 Chapter Manual Changes o rra AAA 47 Introduction C 47 Chapter BITTE E ARA AA ood a aa 49 Ionas peck sb idh Hanauer hihi 49 Equipment Requibed 244544842644 neat ok ah dh dox o SR d bo doo 49 SENAT anerkennen 49 Troubleshooting Techiigues esperar A We OE HO 49 Jden fuig the Problem osos pasas cria e 49 qesime BI sn sr ee 6 bo ees Sob R604 499 50 Repair Maintenance Guidelines cso 8 5 560488 bee EE ds a a a aS 32 ESD Pecans ana cee ee V Age qo a a 52 Soldernng Printed Circmt Boards uuu eure pe gp Ee daw be ee ae 33 Post Repau Safety CHECKS sc sk za 224 REOR OR GR E BOR X CR RO SCA ORO EE u eh 53 Appendix A Calculating D A Converter Accuracy o o 55 DOUCET oc os ah rauen 55 DAC Accuracy Calcul SBONS veu au aa ae eee a OR ESE ES 56 DC Voltage Accuracy Pose s 6 ok ok SSS OE SSN PEERS GWE EE ES 56 DU Current Accuracy QUESOS iu aan a e aa ee AR Ag Rb Re bee Oa 56 HP 3458A Measurement Uncertainty Calculations 37 Calculate DCV Measurement Uncertainty o o o ee eis 51 Calculate DCI Measurement Uncertainty scores e044 64 64 27 Test Accuracy Ratio T A R Calculations gt o o gt 45444466445 e845 465 x3 58 Appendix B Verification Tests C Programs lt lt oo o
66. verter to within its rated specifications 6 Replaceable Lists part numbers for user replaceable parts in the D A Converter Parts Provides information on ordering spare parts and module exchange 7 Manual Information to adapt this manual to instruments whose serial Changes numbers are lower than those listed on the title page 8 Service Procedures to aid in fault isolation and repair of the D A Converter N Calculating Shows how D A Converter accuracy measurement uncertainty D A Converter and test accuracy ratios TARs are calculated Accuracy B Verification Gives example C programs to implement the the verification tests Tests C and adjustments Programs What s in this Manual 7 HP 75000 Series B Service Documentation Suggested Sequence to Use Manuals Instrument Applications Plug in Module Mainframe User s Manuals User s Manuals Plug in Module Mainframe Service Manuals Manual Descriptions Installation and Getting Started Guide This manual contains step by step instructions for all aspects of plug in module and mainframe installation Introductory programming information and examples are also included Mainframe User s Manual This manual contains programming information for the mainframe front panel operation information for the HP E1301 A mainframe and general programming information for instruments installed in the mainframe

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