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USER ’ S GUIDE Dynamic Measurement DC Source HP Model 66332A System DC Power Supply HP Model 6631B, 6632B, 6633B, 6634B For instruments with Serial Numbers: HP 66332A: US36320401 and up HP 6631B: US37470101 and up HP 6632B: US36350826 and up HP 6633B: US36390236 and up HP 6634B: US36380206 and up HP Part No.
2 Warranty Information CERTIFICATION Hewlett-Packard Company certifies that this product met its published specifications at time of shipment from the factory.
3 Safety Summary The following general safety precautions must be observed during all phases of operation of this instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture, and intended use of the instrument.
4 SAFETY SYMBOLS Direct current Alternating current Both direct and alternating current Three-phase alternating current Earth (ground) terminal Protective earth (ground) terminal Frame or chassis terminal Terminal is at earth potential. Used for measurement and control circuits designed to be operated with one terminal at earth potential.
5 Declaration Page DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014 Manufacturer's Name: Hewlett-Packard Company Manufacturer's Address: 150 Green Pond Road Rockaway, New Jersey 07866 U.
6 Acoustic Noise Information Herstellerbescheinigung Diese Information steht im Zusammenhang mit den Anforderungen der Maschinenl ä minformationsverordnung vom 18 Januar 1991. * Schalldruckpegel Lp <70 dB(A) * Am Arbeitsplatz * Normaler Betrieb * Nach EN 27779 (Typpr ü fung).
7 Table of Contents Warranty Information 2 Safety Summary 3 Acoustic Noise Information 6 Printing History 6 Table of Contents 7 QUICK REFERENCE 9 HP 66332A Dynamic Measurement DC Source and HP 6611C-6.
8 TURN-ON CHECKOUT 31 Introduction 31 Using the Keypad 31 Checkout Procedure 32 In Case of Trouble 34 Error Messages 34 Line Fuse 34 FRONT PANEL OPERATION 35 Introduction 35 Front Panel Description 35.
9 1 Quick Reference HP 66332A Dynamic Measurement DC Source and HP 6631B/6632B/6633B/6634B System DC Power Supplies The HP 66332A is a 100 Watt, high performance dc power supply that provides dynamic measurement and analysis of voltage and current waveforms.
1 – Quick Reference 10 The Front Panel - At a Glance j 14-character display shows output measurements and programmed values. k Annunciators indicate operating modes and status conditions. l Rotary control sets voltage, current, and menu parameters. Use and to set the resolution; then adjust the value with the knob.
1 – Quick Reference 11 Front Panel Number Entry Enter numbers from the front panel using one of the following methods: Use the arrow keys and knob to change voltage or current settings NOTE The output must be ON to see the displayed values change in Meter mode.
1 – Quick Reference 12 Front Panel Annunciators CV The output is operating in constant voltage mode. CC The output is operating in constant current mode. Unr The output is unregulated. Dis The output is OFF. Press the Output On/Off key to turn the output on.
1 – Quick Reference 13 Front Panel Menus - At a Glance ADDRESS 7 Sets the HP-IB Address INTF HPIB Selects an interface (HPIB or RS232) BAUDRATE 300 Selects baud rate (300, 600, 1200, 2400, 4800, 960.
1 – Quick Reference 14 SCPI Programming Commands - At a Glance NOTE M ost [optional] commands have been omitted for clarity. Refer to the Programming Guide for a complete description of all programming commands.
1 – Quick Reference 15 The Rear Panel - At a Glance j HP-IB (IEEE-488) interface connector k RS-232 interface connector l INH/FLT (remote INHibit / internal FauLT) connector.
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17 2 General Information Document Orientation This manual describes the operation of the HP Model 66332A Dynamic Measurement DC Source and the HP Model 6631B/6632B/6633B/6634B System DC Power Supply. Unless otherwise noted, both units will be referred to by the description "dc source" throughout this manual.
2 – General Information 18 Safety Considerations This dc source is a Safety Class 1 instrument, which means it has a protective earth terminal. That terminal must be connected to earth ground through a power source equipped with a ground receptacle.
2 – General Information 19 Description Both the HP 66332A Dynamic Measurement DC Source and the HP 6631B/6632B/6633B/6634B System DC Power Supply combine two instruments in one unit.
2 – General Information 20 the HP 6632A, 6633A, and 6634A Series dc power supplies (refer to appendix D in the the Programming Guide). Dc source status registers allow remote monitoring of a wide variety of dc source operating conditions. Output Characteristic The dc source’s output characteristic is shown in the following figure.
21 3 Installation Inspection Damage When you receive your dc source, inspect it for any obvious damage that may have occurred during shipment. If there is damage, notify the shipping carrier and the nearest HP Sales and Support Office immediately. The list of HP Sales and Support Offices is at the back of this guide.
3 - Installation 22 Location The outline diagram in figure 3-1 gives the dimensions of your dc source. The dc source must be installed in a location that allows sufficient space at the sides and back of the unit for adequate air circulation (see Bench Operation).
Installation - 3 23 Input Connections Connect the Power Cord 1. Unscrew the line fuse cap from the rear panel and verify that the fuse rating matches what is specified on the FUSES label on the rear panel. Reinstall the fuse. (See table 3-1 for fuse part numbers.
3 - Installation 24 Voltage Drops The load wires must also be large enough to avoid excessive voltage drops due to the impedance of the wires. In general, if the wires are heavy enough to carry the maximum short circuit current without overheating, excessive voltage drops will not be a problem.
Installation - 3 25 Under normal operation, the dc source senses the output voltage at the output terminals on the back of the unit. External sense terminals are available on the back of the unit that allow the output voltages to be sensed at the load, compensating for impedance losses in the load wiring.
3 - Installation 26 at the load. When using remote sensing, you must program the OVP trip voltage high enough to compensate for the voltage drop between the output terminals and the load.
Installation - 3 27 Fast/Normal Operation A switch on the rear of the unit lets you switch between operating in either Fast mode or Normal mode. When set to Fast mode, this switch disconnects the output capacitor that is located inside the unit.
3 - Installation 28 This rear panel connector, has a fault output port and an inhibit input port. The fault (FLT) output, also referred to as the DFI (discrete fault indicator) signal in the front panel and SCPI commands, is an open collector circuit that pulls the positive output low with respect to the negative (chassis referenced) common.
Installation - 3 29 FLT Output INH Input B) FLT Example with Multiple Units FLT Output INH Input Switch (Normally Open) INH Common INH Input A) INH Example with One Unit + - + FLT INH . . . . FLT INH NOTE: Connectors are removable 1 2 3 4 1 2 3 4 1 2 3 4 .
3 - Installation 30 Controller Connections The dc source connects to a controller either through an HP-IB or an RS-232 connector. HP-IB Interface Each dc source has its own HP-IB bus address, which can be set using the front panel Address key as described in chapter 5.
31 4 Turn-On Checkout Introduction Successful tests in this chapter provide a high degree of confidence that the dc source is operating properly. For verification tests, see appendix B. Complete performance tests are given in the Service Guide. NOTE: This chapter provides a preliminary introduction to the dc source front panel.
4 - Turn-On Checkout 32 Checkout Procedure The test in this section checks for output voltage and current on the dc source. NOTE: To perform the checkout procedure, you will need a wire for shorting the ou tput terminals together. The following procedure assumes that the unit turns on in the factory-default state.
Turn-On Checkout - 4 33 Procedure Display Explanation 6. Press 5, Enter VOLT:PROT 5 0.449V 0.145A Programs the OVP to 5 volts, which is less than the previously set output voltage. Because the OVP voltage entered was less than the output voltage, the OVP circuit tripped.
4 - Turn-On Checkout 34 In Case of Trouble Error Messages Dc source failure may occur during power-on selftest or during operation. In either case, the display may show an error message that indicates the reason for the failure. Selftest Errors Pressing the Shift, Error keys will show the error number.
35 5 Front panel Operation Introduction Here is what you will find in this chapter: ♦ a complete description of the front panel controls ♦ front panel programming examples NOTE: The dc source must be in set to Local mode to use the front panel controls.
5 - Front Panel Operation 36 j Display 14-character vacuum fluorescent display for showing output measurements and programmed values. k Annunciators Annunciators light to indicate operating modes and status conditions: CV The dc source output is in constant-voltage mode.
Front Panel Operation - 5 37 System Keys Refer to the examples later in this chapter for more details on the use of these keys. SYSTEM Local Error Address Save Recall Shift Figure 5-2. System Keys This is the blue, unlabeled key, which is also shown as in this guide.
5 - Front Panel Operation 38 Function Keys Refer to the examples later in this chapter for more details on the use of these keys. FUNCTION Input Meter OV Voltage OCP Current Cal Output Prot Clear Protect Output on/off Figure 5-3. Function Keys Immediate Action Keys Immediate action keys immediately execute their corresponding function when pressed.
Front Panel Operation - 5 39 Metering Keys Metering keys control the metering functions of the dc source. When the unit is operating in front panel meter mode, all front panel measurements are calculated from a total of 2048 readings taken at a 46.8 microsecond sampling rate.
5 - Front Panel Operation 40 Output Control Keys Output control keys control the output functions of the dc source. Press this key to access the voltage menu. Display Command Function VOLT <value> Sets the output voltage Press this key to access the current menu.
Front Panel Operation - 5 41 Entry Keys Refer to the examples later in this chapter for more details on the use of these keys. ENTRY 7 4 1 0 8 5 2 . 9 6 3 - Clear Entry Back space Enter Figure 5-4. Entry Keys These keys let you scroll through choices in a parameter list that apply to a specific command.
5 - Front Panel Operation 42 Examples of Front Panel Programming You will find these examples on the following pages: 1 Setting the output voltage and current 2 Querying and clearing output protection.
Front Panel Operation - 5 43 2 - Querying and Clearing Output Protection The dc source will disable its output if it detects an overvoltage or overcurrent fault condition. Other automatic fault conditions (such as overtemperature) also will disable the output.
5 - Front Panel Operation 44 As previously mentioned, the HP 66332A dc source has the capability of measuring output waveform parameters such as peak, minimum, high level, and low level as illustrated in the following figure. V or A HIGH V or A MAX V or A MIN 100 millisecond V or A LOW acquisition time 46.
Front Panel Operation - 5 45 4 - Programming the Digital Output Port Your dc source is shipped with the output port function set to RIDFI mode. In this mode the port functions as a remote inhibit input with a discrete fault indicator output signal. You can also configure the port to act as a Digital Input/Output device.
5 - Front Panel Operation 46 5 - Programming the Output Relay (option 760 only) Units with option 760 have isolation and polarity reversal relays connected to the output and sense terminals. (Option 760 is not available on HP 6631B units.) To control the relays independently of the Output On/Off switch, proceed as follows: Action Display 1.
Front Panel Operation - 5 47 7 - Saving and Recalling Operating States NOTE: This capability is only available when the unit is set to the SCPI programming language. You can save up to 4 states (from location 0 to location 3) in non-volatile memory and recall them from the front panel.
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A Specifications Specifications Table A-1 lists the specifications of the dc source. Specifications are warranted over the ambient temperature range of 0 to 55 ° C. Unless otherwise noted, specifications apply when measured at the rear terminals after a 30-minute warm-up period.
A - Specifications 50 Supplemental Characteristics Table A-2 lists the supplemental characteristics, which are not warranted but are descriptions of typical performance determined either by design or type testing.
Specifications - A 51 Table A-2. Supplemental Characteristics (continued) Parameter HP 66332A HP 6631B/6632B/6633B/6634B Dynamic Measurement Accuracy Instantaneous Voltage: Instantaneous Current: 0.03% + 5 mV 0.6% + 2 mA 1 not applicable Dynamic Measurement System Buffer Length: Sampling Rate Range: 4096 points 15.
A - Specifications 52 Table A-2. Supplemental Characteristics (continued) Parameter HP 66332A HP 6631B/6632B/6633B/6634B Digital I/O Characteristics Maximum ratings: Digital OUT Port 0,1,2 (open collector) Digital IN Port 2: (internal pull-up) same as INH/FLT Characteristics Output leakage @ 16V = 0.
53 B Verification and Calibration Introduction This appendix includes verification and calibration procedures for the HP 66332A and HP 6631B/6632B/6633B/6634B dc source. Instructions are given for performing the procedures either from the front panel or from a controller over the HP-IB.
B - Verification and Calibration 54 DC Current monitor Voltmeter Load resistor DC Ampmeter - + Load resistor DC Ampmeter - + + - External DC supply A. B. C. +S + - -S + 240 VDC MAX TO - +S + - -S + 240 VDC MAX TO - +S + - -S + 240 VDC MAX TO - - + Current monitor DC Voltmeter - + + - External DC supply D.
Verification and Calibration - B 55 Table B-2. Verification Programming Values Full scale Voltage Full Scale Current Imax Isink 6631B 8 10 10.238 - 10 A 6632B/66332A 20 5 5.1188 - 5 A 6633B 50 2 2.0475 - 2 A 6634B 100 1 1.0238 - 1 A Turn-On Checkout Perform the Turn-On Checkout as directed in chapter 4.
B - Verification and Calibration 56 5. Set the output current to its full scale value (see Table B-2). 6. Divide the voltage drop across the current monitor by its resistance to convert the value to amperes. Record this value and the current reading on the front panel display.
Verification and Calibration - B 57 Table B- 3. Verification Test Record for HP 6631B Model HP 6631B Report No.____________ Date_____________ Test Description Minimum Specification Recorded Results Ma.
B - Verification and Calibration 58 Table B- 5. Verification Test Record for HP 6633B Model HP 6633B Report No.____________ Date_____________ Test Description Minimum Specification Recorded Results Ma.
Verification and Calibration - B 59 Performing the Calibration Procedure NOTE: The calibration proc edure can only be performed using the SCPI language commands. Use either the front panel Address key to access the LANG command, or use the SYSTem:LANGuage command to change the programming language to SCPI.
B - Verification and Calibration 60 Front Panel Calibration These procedures assume you understand how to operate front panel keys (see chapter 5). Enable Calibration Mode Action Display 1. Reset the unit by selecting Output , scrolling to *RST and pressing Enter .
Verification and Calibration - B 61 Current Programming and High-Range Measurement Calibration Action Display 13. Connect the appropriate current monitor as shown in figure B-1A. Connect the DMM (in dc mode) across the current shunt. 14. Press Shift Cal , scroll to CAL CURR, and press Enter .
B - Verification and Calibration 62 AC Current Measurement Calibration (HP 66332A only) Action Display 26. Disconnect all loads from the dc source. Make sure the mode switch on the rear panel is set to Normal. 27. Press Shift Cal , scroll to CAL CURR MEAS AC, and press Enter .
Verification and Calibration - B 63 Changing the Calibration Password The factory default password is 0. You can change the password when the dc source is in calibration mode (which requires you to enter the existing password). Proceed as follows: Action Display 1.
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65 C Error Messages Error Number List This appendix gives the error numbers and descriptions that are returned by the dc source. Error numbers are returned in two ways: ♦ Error numbers are displayed on the front panel ♦ Error numbers and mess ages are read back with the SYSTem:ERRor? query.
C - Error Messages 66 –131 Invalid suffix [unrecognized units, or units not appropriate] –138 Suffix not allowed –141 Invalid character data [bad character, or unrecognized] –144 Character data too long –148 Character data not allowed –150 String data error –151 Invalid string data [e.
Error Messages - C 67 Selftest Errors 0 through 99 (sets Standard Event Status Register bit #3) 0 No error 1 Non-volatile RAM RD0 section checksum failed 2 Non-volatile RAM CONFIG section checksum fai.
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69 D Line Voltage Conversion WARNING: Shock Hazard Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made only by qualified service personnel. Open the Unit ♦ Turn off ac power and disconnect the power cord from the unit.
D - Line Voltage Conversion 70 Install the Correct Line Fuse ♦ Unscrew the line fu se cap from the rear panel and install the correct fuse. For 100/120 Vac operation: 4 A; HP part number 2110-0055 For 220/230 Vac operation: 2 A; HP part number 2110-0002 ♦ Mark the voltage setting that the unit has been set to on the rear panel label.
71 Index — — -- -- -- -- -- --, 43 — + — +/- terminals, 23 +S/-S terminals, 23 — 0 — 0 ... 9, 41 — A — ac line conversion, 69 accessories, 18 ACDC current detector, 44 airflow, 22 annu.
Index 72 OCP, 38 Output, 40 Output On/Off, 38 OV, 40 Prot Clear, 38 Protect, 40 Voltage, 40 fuses, 23 — G — ground, earth, 18 guide, programming, 17 guide, user ’ s, 17 — H — history, 6 HP-I.
Index 73 saving operating states, 47 selftest errors, 34 sense connections, 25 service guide, 18 setting voltage/current, 42 shift annunciator, 31 shift key, 31 shorting switch, 28 specifications, 49 .
74 HP Sales and Support Office For more information, call your local HP sales office listed in your telephone directory or an HP regional office listed below for location of your nearest sales/support office.
Manual Updates The following updates have been made to this manual since the November 1997 printing indicated on the Printing History page. 7/8/99 Additional information about CV mode operation has been added to page 20. A note has been added to Table A-1 for the Ripple and Noise specifications and a correction has been made for Model HP 6631B.
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