Page 3 - SAFETY SUMMARY; GROUND THE POWER MODULE.
3 SAFETY SUMMARY The following general safety precautions must be observed during all phases of operation of this power module.Failure to comply with these precautions or with specific warnings elsewhere in this guide violates safetystandards of design, manufacture, and intended use of the power mod...
Page 4 - Printing History
4 Printing History The current edition of this guide is indicated below. Reprints of this guide containing minor corrections and updates mayhave the same printing date. New editions are identified by a new printing date and, in some cases, by a new part number.A new edition incorporates all new or c...
Page 5 - Table of Contents
5 Table of Contents Overview.................................................................................................................................................................................. 7 About This Manual ............................................................................
Page 7 - Overview; About This Manual
Overview 7 1 Overview About This Manual This manual is a complete guide for servicing the Agilent 6610xA Power Modules. Troubleshooting information for theAgilent 66000A MPS Mainframe is provided in the mainframe service manual (see "Related Documents"), which should beused with this manual....
Page 8 - Related Documents; Manual; Revisions and Updates
Overview 8 Related Documents The following documents are related to this manual: Manual Part Number Description Agilent 66000A MPS MainframeInstallation Guide 66000-90001 Provides product specifications, installation, andconnection information. Agilent Series 6610xA MPS PowerModules User’s Guide 595...
Page 9 - Safety Considerations
Overview 9 Safety Considerations The Agilent 6610xA Power Modules are Safety Class 1 instruments that connect to a protective earth terminal whenproperly installed in an Agilent 66000A MPS Mainframe. Refer to the Safety Summary page at the beginning of this manualfor general safety procedures and th...
Page 11 - Verification and Performance Tests 11; Verification and Performance Tests; Operation Verification; Note
Verification and Performance Tests 11 2 Verification and Performance Tests This chapter contains test procedures to check the operation of the Agilent 6610xA Power Modules. The required testequipment is specified in Chapter 1. Sample performance test record sheets are included at the end of the chap...
Page 12 - 2 Verification and Performance Tests; Measurement Techniques; Setup for Most Tests; Programming
12 Verification and Performance Tests Measurement Techniques Setup for Most Tests Most tests are performed at the rear terminals as shown in the following figure. Measure the dc voltage directly at the + Sand - S terminals. Set the connector sense switch for local sensing and use adequate wire gauge...
Page 13 - Record the output voltage reading on the DVM connected to + S and - S.
Verification and Performance Tests 13 Table 2-1. Power Module Voltage and Current Values Agilent Model Full-Scale Voltage Max. Prog. Voltage Full-Scale Current Max. Prog. Current Max. Prog. Overvoltage 66101A 8V 8.190V 16A 16.380A 10V 66102A 20V 20.475V 7.5A 7.678A 24V 66103A 35V 35.831V 4.5A 4.607A...
Page 14 - Transient Recovery Time
14 Verification and Performance Tests CV Source Effect This test measures the change in output voltage that results from a change in ac line voltage from the minimum to maximumvalue within the line voltage specifications. 1. Turn off the module and connect the ac power line through a variable-voltag...
Page 16 - CC Source Effect
16 Verification and Performance Tests The following steps show how to set up an Agilent 3458A System Voltmeter from its front panel to take a statistical averageof 100 readings. represents the unlabeled shift key in the FUNCTION/RANGE group. 1. Program 10 power line cycles per sample by pressing . 2...
Page 17 - Verification and Performance Tests 17; ) and rms voltmeter as shown in Figure 2-1. Use only a resistive
Verification and Performance Tests 17 Note You may want to use the average reading program described previously. 7. Adjust the transformer to the HIGH line voltage (e.g., 132Vac for a 115Vac nominal input, or 250Vac for a 230Vacnominal input), and record the output current reading. 8. The difference...
Page 18 - Model
18 Verification and Performance Tests Table 2-2. Performance Test Record for Model Agilent 66101A (8V, 16A) Pre Cal_____________Post Cal______________ Model Agilent 66101A Temperature___________________________Test Performed By_______________________ Serial Number_______________________Humidity_____...
Page 25 - Troubleshooting 25; Troubleshooting; Troubleshooting Sequence
Troubleshooting 25 3 Troubleshooting This chapter provides troubleshooting and repair information for the Agilent 6610xA Power Modules. Before attempting totroubleshoot the modules, ensure that the problem is not with an external circuit or application, the mainframe, the GPIBcontroller, the applica...
Page 26 - 6 Troubleshooting; If You Experienced a Selftest Failure or RunTime Error Message
26 Troubleshooting þ Figure 3-5 - Troubleshooting No Output þ Figure 3-6 - Troubleshooting High Output þ Figure 3-7 - Troubleshooting Will Not Overvoltage þ Figure 3-8 - Troubleshooting CV Accuracy þ Figure 3-9 - Troubleshooting CC Accuracy þ Figure 3-10 - Troubleshooting Downprogrammer þ Figure 3-1...
Page 27 - Troubleshooting 27
Troubleshooting 27 Figure 3-1. Overall Troubleshooting (Sheet 1 of 3)
Page 28 - 8 Troubleshooting
28 Troubleshooting Figure 3-1. Overall Troubleshooting (Sheet 2 of 3)
Page 29 - Troubleshooting 29
Troubleshooting 29 Figure 3-1. Overall Troubleshooting (Sheet 3 of 3)
Page 30 - 0 Troubleshooting
30 Troubleshooting Figure 3-2. Troubleshooting Microprocessor Circuits (Sheet 1 of 2)
Page 31 - Troubleshooting 31
Troubleshooting 31 Figure 3-2. Troubleshooting Microprocessor Circuits (Sheet 2 of 2)
Page 33 - Troubleshooting 33
Troubleshooting 33 Figure 3-4. Troubleshooting Overvoltage at Turn-On (Sheet 1 of 2)
Page 34 - 4 Troubleshooting
34 Troubleshooting Figure 3-4. Troubleshooting Overvoltage at Turn-On (Sheet 2 of 2)
Page 35 - Troubleshooting 35
Troubleshooting 35 Figure 3-5. Troubleshooting No Output (Sheet 1 of 5)
Page 36 - 6 Troubleshooting
36 Troubleshooting Figure 3-5. Troubleshooting No Output (Sheet 2 of 5)
Page 37 - Troubleshooting 37
Troubleshooting 37 Figure 3-5. Troubleshooting No Output (Sheet 3 of 5)
Page 38 - 8 Troubleshooting
38 Troubleshooting Figure 3-5. Troubleshooting No Output (Sheet 4 of 5)
Page 39 - Troubleshooting 39
Troubleshooting 39 Figure 3-5. Troubleshooting No Output (Sheet 5 of 5)
Page 40 - 0 Troubleshooting
40 Troubleshooting Figure 3-6. Troubleshooting High Output
Page 42 - 2 Troubleshooting
42 Troubleshooting Figure 3-8. Troubleshooting CV Accuracy
Page 43 - Troubleshooting 43
Troubleshooting 43 Figure 3-9. Troubleshooting CC Accuracy
Page 46 - 6 Troubleshooting
46 Troubleshooting Figure 3-12. Troubleshooting Readback Circuits (Sheet 1 of 2)
Page 47 - Troubleshooting 47
Troubleshooting 47 Figure 3-12. Troubleshooting Readback Circuits (Sheet 2 of 2)
Page 48 - 8 Troubleshooting; Test Points; Test Point; Built-In Test Functions
48 Troubleshooting Test Points The following test points are referenced in the troubleshooting flowcharts. Refer to the component locations diagram inChapter 6 for the actual location of the test points on the pc board. Table 3-1. Test Points Test Point Description TP 0 Output circuit common (locate...
Page 51 - Troubleshooting 51; EEPROM Troubleshooting and Initialization; Initialization
Troubleshooting 51 EEPROM Troubleshooting and Initialization Troubleshooting The power module can detect an EEPROM checksum error. This error is not identified by number, but causes the followingsymptoms: þ The power module starts up with both the VOLTS and AMPS full-scale programming and metering r...
Page 52 - 2 Troubleshooting
52 Troubleshooting 10 ! Program to initialize EEPROM or move factory preset data in 66101A, 20 ! 66102A, 66103A, 66104A, 66105A and 66106A power supply modules. 30 ! Rev A.00.00 dated May 27, 1993 40 ! 50 DIM Init_data(1:39),Model$[6],Idn$[21],Cal_data$[40] 60 INTEGER Addr(1:39),Length(1:39) 70 ASSI...
Page 53 - Troubleshooting 53
Troubleshooting 53 510 ! 520 Eprom_data_106a: ! ! EEPROM data for 66106A 530 DATA 16.4035,32.3969,204.75,0,65,0,4403.67,30.0918,0.768,0 540 DATA 67,4,0.9,5.25,240,0,255,100,20,66106 550 DATA 131.18,.248047,35231.2,-28.4202,0,0,4,66106,20,150 560 DATA 20,150,28321,40,20,10,82,84,0 570 ! 580 INPUT “In...
Page 54 - 4 Troubleshooting
54 Troubleshooting 1010 NEXT I 1020 ! 1030 OUTPUT @Ps;"*CLS" ! Clears power supply registers 1040 ! 1050 OUTPUT @Ps;"CAL;STATE ON," ! Turn on cal mode, "0" passcode 1060 ! 1070 GOSUB Ps_error ! Error if passcode is not "0"! 1080 IF Err THEN 1090 OUTPUT @Ps;"*IDN?&...
Page 55 - Troubleshooting 55
Troubleshooting 55 1510 OUTPUT @Ps;"DIAG:EEPR ’’;Addr(I);’’,’’;Length(I);’’,’’;Init_data(I) 1520 NEXT I 1530 GOTO Cal_off 1540 !1550 Fact_preset: !1560 CLEAR SCREEN 1570 PRINT "This program should ONLY be completed if your power supply”1580 PRINT "EEPROM has been replaced or a component ...
Page 56 - 6 Troubleshooting; Disassembly Procedures
56 Troubleshooting 2010 STOP 2020 END IF 2030 ! 2040 PRINT "Operation complete. Program stopped." 2050 STOP 2060 ! 2070 Ps_error: ! Error handling subroutine 2080 OUTPUT @Ps;"SYST:ERR?" ! Check for errors 2090 ENTER @Ps;Err 2100 RETURN 2110 ! 2120 END Figure 3-14. EEPROM Initializati...
Page 57 - Troubleshooting 57; Removing the Front Panel Assembly
Troubleshooting 57 Removing the Front Panel Assembly 1. Carefully unplug the front panel cable from the J3 connector on the Power board. 2. Spread the bottom of the chassis away from the front panel assembly and lift the assembly out of the chassis. Removing the Power Board 1. Carefully unplug the f...
Page 58 - Installing the Power Board
58 Troubleshooting Figure 3-15. Front Panel Assembly Locking Tabs Installing the Power Board 1. Insert the tabs along the bottom edge of the board in the corresponding slots on the bottom of the chassis and carefullyinstall the board in the chassis. 2. Use the T10 driver and insert the four screws (...
Page 59 - Troubleshooting 59; Installing the Front Panel Board and Front Panel Assembly; Installing the Cover
Troubleshooting 59 Installing the Front Panel Board and Front Panel Assembly 1. Install the front panel, the front panel board, and the latch assembly in one of the front assembly halves. 2. Make sure that the front panel board is positioned in the slot closest to the front panel. 3. Carefully snap ...
Page 61 - Theory Of Operation 61; Theory of Operation; AC Input and Bias Supplies
Theory Of Operation 61 4 Theory of Operation This chapter provides a brief theory of operation for the Agilent 6610xA Power Modules. Figure 4-1 is a block diagram ofthe primary circuit functions of the power modules. The diagram references the schematic sheets where the circuits arelocated. AC Input...
Page 62 - 2 Thoery Of Operation
Page 63 - Theory Of Operation 63; CV Amplifier
Theory Of Operation 63 CV Amplifier The CV amplifier controls the output of the power module when the module is operating in constant voltage mode. The CVamplifier consists of two stages: an error amplifier stage and a voltage monitor stage. The calibrated CVPROG* signal fromthe CV DAC pulls current...
Page 64 - 4 Thoery Of Operation; Downprogrammer Circuit
64 Thoery Of Operation Pulse-Width Modulator, FETS, and Isolation Transformer The pulse-width modulator controls the FETS. The FETS are arranged in an "H" bridge configuration with the + and - dcrail at the top and bottom of the H. The 4 FETS are located on each leg of the "H", and t...
Page 65 - Theory Of Operation 65; OV Circuit
Theory Of Operation 65 OV Circuit The OV circuit consists of a comparator that compares the output voltage of the module with an overvoltage referencesignal and shuts down the output when the output of the supply exceeds the overvoltage reference level. The microprocessor generates the overvoltage r...
Page 67 - Replacement Parts 67; Replacement Parts
Replacement Parts 67 5 Replacement Parts Table 5-1 lists the electrical components of the Agilent 6610xA Power Modules’ main, bias, and front panel boards. Table5-2 lists the mechanical components of the module. Table 5-3 lists all of the components of the connector assembly. Thesetables provide the...
Page 83 - Diagrams 83; Diagrams; Schematic Sheets; Component Location Diagrams
Diagrams 83 6 Diagrams This chapter contains test point and component location diagrams and schematics for troubleshooting the Agilent 6610xAPower Modules. SHOCK HAZARD Hazardous voltages are present throughout the Power and Bias board assemblies. Ac line voltage ispresent on some connectors even wh...
Page 84 - 4 Diagrams; Schematic Notes
84 Diagrams Schematic Notes Notes that apply to all schematic sheets are as follows: þ All resistors are in ohms +/-1%, 1/8 W, unless otherwise specified. þ All capacitors are in microfarads unless otherwise specified. þ Refer to the parts list (Table 5-1) for the values of the resistors and capacit...
Page 94 - SENSE
1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 I F 0 - I SENSE + OUT - OUT
Page 95 - Main Board Component Coordinates
X Y X Y X Y C1 8.1 2.2 C220 0.5 2.1 C331 12.7 3.7 C2 8.1 2.0 C221 1.0 3.2 C332 13.7 3.6 C3 8.1 3.1 C222 0.0 2.9 C333 13.4 4.1 C4 7.3 3.0 C223 1.0 2.1 C334 13.2 3.8 C5 8.5 3.4 C224 0.0 2.4 C335 10.9 3.7 C6 7.9 2.1 C225 2.3 3.7 C336 12.2 3.9 C7 9.1 3.7 C226 3.2 3.3 C337 14.2 3.3 C8 9.1 3.6 C227 11.3 2...
Page 97 - Manual Backdating
Manual Backdating This appendix describes the changes that must be made to this manual to make it comply with module serial numbers lowerthan those on the title page. Look for the serial number of your module on the table and make only those changes listed forthat serial number. Agilent Model Prefix...
Page 98 - 8 Backdating
CHANGE 8: In the parts list on page 65, change L204 through L211 from part number 5080-2251 to 9170-0442. CHANGE 9: On page 67, change R204, R214 to 61.8 ohms, part number 0757-0397. On page 65, delete D216,D217, part number 1901-1214. CHANGE 10: Indicate that software revision A.00.01 applies to th...
Page 99 - Index
Index B backdating.................................................................................................................................................................... 89 C component locator .................................................................................................
