HP 6632B, 6633B, 66332A, 6634B, 6631B User Manual

4.7 (3)

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. 5962-8196

Microfiche Part No. 5962-8197

Printed in USA: July 1999

Warranty Information

CERTIFICATION

Hewlett-Packard Company certifies that this product met its published specifications at time of shipment from the factory. Hewlett-Packard further certifies that its calibration measurements are traceable to the United States National Bureau of Standards, to the extent allowed by the Bureau's calibration facility, and to the calibration facilities of other International Standards Organization members.

WARRANTY

This Hewlett-Packard hardware product is warranted against defects in material and workmanship for a period of three years from date of delivery. HP software and firmware products, which are designated by HP for use with a hardware product and when properly installed on that hardware product, are warranted not to fail to execute their programming instructions due to defects in material and workmanship for a period of 90 days from date of delivery. During the warranty period Hewlett-Packard Company will, at its option, either repair or replace products which prove to be defective. HP does not warrant that the operation for the software firmware, or hardware shall be uninterrupted or error free.

For warranty service, with the exception of warranty options, this product must be returned to a service facility designated by HP. Customer shall prepay shipping charges by (and shall pay all duty and taxes) for products returned to HP for warranty service. Except for products returned to Customer from another country, HP shall pay for return of products to Customer.

Warranty services outside the country of initial purchase are included in HP's product price, only if Customer pays HP international prices (defined as destination local currency price, or U.S. or Geneva Export price).

If HP is unable, within a reasonable time to repair or replace any product to condition as warranted, the Customer shall be entitled to a refund of the purchase price upon return of the product to HP.

LIMITATION OF WARRANTY

The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by the Customer, Customer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation and maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

EXCLUSIVE REMEDIES

THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.

ASSISTANCE

The above statements apply only to the standard product warranty. Warranty options, extended support contacts, product maintenance agreements and customer assistance agreements are also available. Contact your nearest Hewlett-Packard Sales and Service office for further information on HP's full line of Support Programs.

2

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. Hewlett-Packard Company assumes no liability for the customer's failure to comply with these requirements.

GENERAL

This product is a Safety Class 1 instrument (provided with a protective earth terminal). The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions.

Any LEDs used in this product are Class 1 LEDs as per IEC 825-1.

ENVIRONMENTAL CONDITIONS

This instrument is intended for indoor use in an installation category II, pollution degree 2 environment. It is designed to operate at a maximum relative humidity of 95% and at altitudes of up to 2000 meters. Refer to the specifications tables for the ac mains voltage requirements and ambient operating temperature range.

BEFORE APPLYING POWER

Verify that the product is set to match the available line voltage, the correct fuse is installed, and all safety precautions are taken. Note the instrument's external markings described under "Safety Symbols".

GROUND THE INSTRUMENT

To minimize shock hazard, the instrument chassis and cover must be connected to an electrical ground. The instrument must be connected to the ac power mains through a grounded power cable, with the ground wire firmly connected to an electrical ground (safety ground) at the power outlet. Any interruption of the protective (grounding) conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury.

ATTENTION: Un circuit de terre continu est essentiel en vue du fonctionnement sécuritaire de l'appareil. Ne jamais mettre l'appareil en marche lorsque le conducteur de mise … la terre est d‚branch‚.

FUSES

Only fuses with the required rated current, voltage, and specified type (normal blow, time delay, etc.) should be used. Do not use repaired fuses or short-circuited fuseholders. To do so could cause a shock or fire hazard.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE

Do not operate the instrument in the presence of flammable gases or fumes.

DO NOT REMOVE THE INSTRUMENT COVER

Operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made only by qualified service personnel.

Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel.

3

SAFETY SYMBOLS

WARNING

Caution

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.

Terminal for Neutral conductor on permanently installed equipment

Terminal for Line conductor on permanently installed equipment

On (supply)

Off (supply)

Standby (supply). Units with this symbol are not completely disconnected from ac mains when this switch is off. To completely disconnect the unit from ac mains, either disconnect the power cord or have a qualified electrician install an external switch.

In position of a bi-stable push control

Out position of a bi-stable push control

Caution, risk of electric shock

Caution, hot surface

Caution (refer to accompanying documents)

The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met.

The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the product. Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met.

4

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.S.A.

declares that the Product

 

Product Name:

a) Dynamic Measurement DC Source

 

b) System DC Power Supply

Model Number:

a) HP 66332A

 

b) HP 6631B, 6632B, 6633B, 6634B

conforms to the following Product Specifications:

Safety:

IEC 1010-1:1990+A1(1992) / EN 61010-1:1993

EMC:

CISPR 11:1990 / EN 55011:1991 - Group 1 Class B

 

IEC 801-2:1991 / EN 50082-1:1992 - 4 kV CD, 8 kV AD

 

IEC 801-3:1984 / EN 50082-1:1992 - 3 V / m

 

IEC 801-4:1988 / EN 50082-1:1992 - 0.5 kV Signal Lines

 

1 kV Power Lines

Supplementary Information:

 

The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC and carries the CE-marking accordingly.

New Jersey

November 1997

______

Location

Date

 

Bruce Krueger / Quality Manager

 

European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Department TRE, Herrenberger Strasse 130, D-71034 Boeblingen (FAX:+49-7031-14-3143)

5

Acoustic Noise Information

Herstellerbescheinigung

Diese Information steht im Zusammenhang mit den Anforderungen der

Maschinenläminformationsverordnung vom 18 Januar 1991.

*Schalldruckpegel Lp <70 dB(A)

*Am Arbeitsplatz

*Normaler Betrieb

*Nach EN 27779 (Typprüfung).

Manufacturer's Declaration

This statement is provided to comply with the requirements of the German Sound Emission Directive, from 18 January 1991.

*Sound Pressure Lp <70 dB(A)

*At Operator Position

*Normal Operation

*According to EN 27779 (Type Test).

Printing History

The edition and current revision of this manual are indicated below. Reprints of this manual containing minor corrections and updates may have the same printing date. Revised editions are identified by a new printing date. A revised edition incorporates all new or corrected material since the previous printing date.

Changes to the manual occurring between revisions are covered by change sheets shipped with the manual. In some cases, the manual change applies only to specific instruments. Instructions provided on the change sheet will indicate if a particular change applies only to certain instruments.

This document contains proprietary information protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated into another language without the prior consent of Hewlett-Packard Company. The information contained in this document is subject to change without notice.

© Copyright 1997 Hewlett-Packard Company

Edition 1 __________November, 1997

6

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-6614C System DC Power Supply

9

The Front Panel - At a Glance

10

Front Panel Number Entry

11

Front Panel Annunciators

12

Immediate Action Keys

12

Front Panel Menus - At a Glance

13

SCPI Programming Commands - At a Glance

14

The Rear Panel - At a Glance

15

GENERAL INFORMATION

17

Document Orientation

17

Safety Considerations

18

Options and Accessories

18

Description

19

Capabilities

19

Front Panel Controls

19

Remote Programming

19

Output Characteristic

20

INSTALLATION

21

Inspection

21

Damage

21

Packaging Material

21

Items Supplied

21

Cleaning

21

Location

22

Bench Operation

22

Rack Mounting

22

Input Connections

23

Connect the Power Cord

23

Output Connections

23

Wire Considerations

23

Current Ratings

23

Voltage Drops

24

Multiple Load Connections

24

Remote Sense Connections

24

Sense Leads

25

Stability

26

OVP Considerations

26

Fast/Normal Operation

27

Inductive Loading

27

Capacitive Loading

27

INH/FLT Connections

27

Controller Connections

30

HP-IB Interface

30

RS-232 Interface

30

7

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

System Keys

37

Function Keys

38

Immediate Action Keys

38

Scrolling Keys

38

Metering Keys

39

Output Control Keys

40

Entry Keys

41

Examples of Front Panel Programming

42

1

- Setting the Output Voltage and Current

42

2

- Querying and Clearing Output Protection

43

3

- Making Front Panel Measurements

43

4

- Programming the Digital Output Port

45

5

- Programming the Output Relay (option 760 only)

46

6

- Setting the HP-IB Address and RS-232 Parameters

46

7

- Saving and Recalling Operating States

47

SPECIFICATIONS

49

Specifications

49

Supplemental Characteristics

50

VERIFICATION AND CALIBRATION

53

Introduction

53

Equipment Required

53

Test Setup

53

Performing the Verification Tests

54

Turn-On Checkout

55

Voltage Programming and Measurement Accuracy

55

Current Programming and Measurement Accuracy

55

Performing the Calibration Procedure

59

Front Panel Calibration Menu

59

Front Panel Calibration

60

Calibration Error Messages

62

Changing the Calibration Password

63

Calibration Over the HP-IB

63

ERROR MESSAGES

65

LINE VOLTAGE CONVERSION

69

Open the Unit

69

Configure the Power Transformer

69

Install the Correct Line Fuse

70

Close the Unit

70

INDEX

71

8

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. It is designed to simplify the testing of digital cellular and mobile phones. For example, data acquired using its dynamic measurement capability can be used in determining the battery operating time of digital wireless communications products.

The HP 6631B/6632B/6633B/6634B are 100 Watt, high performance dc power supplies with output current measurement capability in the microampere range. They are well suited for testing portable battery-powered products.

Additionally, the combination of bench-top and system features in these dc sources provide versatile solutions for your design and test requirements.

Convenient bench-top features

Up to 100 Watts output power

Easy to use knob for voltage and current settings

Highly visible vacuum-fluorescent front panel display

Excellent load and line regulation; low ripple and noise

Measurement capability down to microampere levels

Current sinking up to the maximum rated output current

Instrument state storage

Portable case

Flexible system features

HP-IB (IEEE-488) and RS-232 interfaces are standard

SCPI (Standard Commands for Programmable Instruments) compatibility

Triggered acquisition of digitized output current and voltage waveforms (HP 66332A only)

I/O setup easily done from the front panel

9

1 – Quick Reference

The Front Panel - At a Glance

j14-character

k Annunciators

display shows output

indicate operating

measurements and

modes and status

programmed values.

conditions.

lRotary control

mOptional front panel

sets voltage, current,

output connectors.

and menu parameters.

 

Use á and â

 

to set the resolution;

 

then adjust the value

 

with the knob.

 

1

2

3

4

5

 

 

6

7

 

8

 

 

nTurns the dc source

o System keys:

p

Function keys:

q Entry keys:

 

on and off.

return to Local

enable/disable

enter values

 

 

 

mode

 

output

increment or

 

set the HP-IB

select metering

 

decrement values

 

 

address

 

functions

ä

and

ã

 

set the RS-232

program voltage

 

select front panel

 

 

interface

 

and current

 

menu parameters.

 

display SCPI

set and clear

á

and

â

 

 

error codes

 

protection

 

select a digit in

 

save and recall

 

functions

 

the numeric entry

 

 

instrument states.

and

 

field.

 

 

 

 

 

 

scroll through the

 

 

 

 

 

 

 

 

front panel menu

 

 

 

 

 

 

 

 

commands.

 

 

 

 

10

1 – Quick Reference

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.

 

 

Use the Function keys and knob to change the displayed settings

Use the Arrow keys to edit individual digits in the displayed setting

Increments the flashing digit

Moves the flashing digit to the right

Decrements the flashing digit

Moves the flashing digit to the left

Enters the value when editing is complete

Use the Function keys and Entry keys to enter a new value

NOTE

If you make a mistake, use the Backspace key to delete the number, or press the

 

Meter key to return to meter mode.

 

 

11

1 – Quick Reference

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.

OCP The over-current protection state is ON. Press the OCP key to turn over-current protection off.

Prot Indicates that the output has been disabled by one of the protection features. Press the Prot Clear key to clear the protection condition.

Cal Calibration mode is ON. Scroll to the Cal Off command and press the Enter key to exit the calibration mode.

Shift The Shift key has been pressed.

Rmt The selected Remote programming interface (either HP-IB or RS-232) is active. Press the Local key to return the unit to front panel control.

Addr The interface is addressed to talk or listen.

Err There is an error in the SCPI error queue. Press the Error key to view the error code.

SRQ The interface is requesting service.

Immediate Action Keys

Output

On/Off

Local

Shift

Prot Clr

Shift OCP

A toggle switch that turns the output of the dc source on or off.

Activates front panel control when the unit is in remote mode (unless a Lockout command is in effect).

Resets the protection circuit and allows the unit to return to its last programmed state.

A toggle switch that enables or disables overcurrent protection.

12

 

 

 

 

 

 

1 – Quick Reference

 

 

 

 

 

 

Front Panel Menus - At a Glance

 

 

 

 

 

 

 

 

 

 

Address

 

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, 9600)

 

 

 

PARITY NONE

Selects message parity (NONE, EVEN, ODD, MARK, SPACE)

 

 

 

FLOW NONE

Selects flow control (XON-XOFF, RTS-CTS, DTR-DSR, NONE)

 

 

 

LANG SCPI

Selects language (SCPI or COMP)

 

 

 

 

 

 

 

 

 

 

Recall

 

*RCL 0

 

Recalls instrument state

 

 

 

 

 

 

 

 

 

 

Shift

Save

*SAV 0

 

Saves present instrument state

 

 

 

 

 

 

 

 

Shift

Error

ERROR 0

Displays errors in SCPI error queue

 

 

 

 

 

 

 

 

Meter

 

12.000V 0.204A

Measures output voltage and current

 

 

 

12.500V MAX

Measures peak output voltage1

 

 

 

1.000V

MIN

Measures minimum output voltage1

 

 

 

12.330V HIGH

Measures the high level of a

voltage pulse waveform1

 

 

 

0.080V

LOW

Measures the low level of a

voltage pulse waveform1

 

 

 

12.000V RMS

Measures rms voltage1

 

 

 

 

0.350A

MAX

Measures peak output current1

 

 

 

0.050A

MIN

Measures minimum output current1

 

 

 

0.400A

HIGH

Measures the high level of a

current pulse waveform1

 

 

 

0.012A

LOW

Measures the low level of a

current pulse waveform1

 

 

 

0.210A

RMS

Measures rms current1

 

 

 

Voltage

 

VOLT 20.000

Sets the output voltage

 

 

 

 

 

 

 

 

 

 

Current

 

CURR 2.000

Sets the output current

 

 

 

 

 

 

 

 

 

Protect

 

OC -- -- -- --

Protection status (example shows overcurrent tripped)

 

 

 

 

 

 

 

 

 

Output

 

*RST

 

Places the dc source in the factory-default state

 

PON:STATE RST Select the power-on state command (RST or RCL0)

 

PROT:DLY 0.08

Sets the output protection delay in seconds

 

RI LATCHING

Sets the remote inhibit mode (LATCHING, LIVE, or OFF)

 

DFI OFF

Sets the discrete fault indicator state (ON or OFF)

 

DFI:SOUR OFF

Selects the DFI source (QUES, OPER, ESB, RQS, or OFF)

 

PORT RIDFI

Sets the output port functions (RIDFI or DIGIO)

 

DIGIO 7

Sets and reads the I/O port value (0 through 7)

 

RELAY ON

Sets the output relay state (ON or OFF) 2

 

RELAY NORM

Sets the output relay polarity (NORM or REV) 2

Shift

OV

VOLT:PROT 22

Sets overvoltage protection level

 

 

 

 

Shift

Input

CURR:RANG HIGH

Sets current range (HIGH, LOW, or AUTO)

CURR:DET ACDC Sets current measurement detector (ACDC or DC)1

Shift

Cal

CAL ON

Accesses calibration menu (See User’s Guide).

Use ä

and ã

to select menu parameters. UseMeter to exit any menu and return to metering mode.

1Not available on HP 6631B - 6634B or in Compatibility mode.

2Not available on HP 6631B.

13

1 – Quick Reference

SCPI Programming Commands - At a Glance

NOTE

Most [optional] commands have been omitted for clarity. Refer to the

 

Programming Guide for a complete description of all programming commands.

 

 

 

 

 

ABORt

 

SENSe

 

 

CALibrate

 

:CURRent :RANGe <n>

:CURRent

[:POSitive]

:DETector ACDC | DC1

:NEGative

:FUNCtion “VOLT”| “CURR”

 

 

 

 

1

:MEASure :LOWRange

:SWEep

:OFFSet :POINts <n>1

 

:AC1

:POINts <n>

 

:DATA <n>

 

:TINTerval <n>

:LEVel P1 | P2 | P3 | P4

[SOURce:] CURRent <n>

:PASSword <n>

:TRIGgered <n>

:SAVE

 

:PROTection :STATe <bool>

:STATe <bool> [, <n>]

DIGital :DATA <n>

 

:VOLTage

:PROTection

:FUNCtion RIDF | DIG

DISPlay

 

VOLTage

<n>

 

<bool>

 

:TRIGgered <n>

:MODE NORMal | TEXT

:PROTection <n>

:TEXT <display_string>

:ALC :BANDwidth? | :BWIDth?

INITiate

 

STATus

 

 

:SEQuence[1|21]

:PRESet

 

 

:NAME TRANsient | ACQuire1

:OPERation [:EVENt]?

:CONTinuous :SEQuence[1], <bool>

:CONDition?

 

:NAME TRANsient, <bool>

:ENABle <n>

 

MEASure | FETCh

 

:NTRansition <n>

:ARRay

:CURRent?1

:PTRansition <n>

:VOLTage?1

:QUEStionable [:EVENt]?

[:CURRent][:DC]?2

:CONDition?

 

:ACDC?1

:ENABle <n>

 

:HIGH?1

:NTRansition <n>

:LOW?1

:PTRansition <n>

:MAX?1

SYSTem

 

 

:MIN?1

:ERRor?

 

 

:VOLTage

[:DC]?2

:LANGuage SCPI | COMPatibility

:ACDC?1

:VERSion?

 

 

:HIGH?1

:LOCal

 

 

:LOW?1

:REMote

 

 

:MAX?1

:RWLock

 

 

:MIN?1

TRIGger

 

 

OUTPut

 

:SEQuence 2 | :ACQuire [:IMMediate]1

<bool> [,NORelay]

:COUNt

:CURRent <n>1

:DFI <bool>

 

 

:VOLTage <n>1

:SOURce QUES | OPER | ESB | RQS | OFF

:HYSTeresis:CURRent <n>1

:PON :STATe RST | RCL0

 

:VOLTage <n>1

:PROTection :CLEar

:LEVel

:CURRent <n>1

:DELay <n>

 

:VOLTage <n>1

:RELay [:STATe] <bool>3

:SLOPe

:CURRent POS | NEG | EITH1

:POLarity NORM | REV3

 

:VOLTage POS | NEG | EITH1

:RI :MODE LATCHing | LIVE | OFF

:SOURce BUS | INTernal1

 

 

[:SEQuence1 | :TRANsient][:IMMediate]

1Not available on HP 6631B - 6634B

 

:SOURce BUS

2 Fetch commands not available on HP 6631B – 6634B

:SEQuence1 :DEFine TRANsient

3 Not available on HP 6631B

:SEQuence2 :DEFine ACQuire1

14

 

 

 

 

1 – Quick Reference

The Rear Panel - At a Glance

 

 

jHP-IB (IEEE-488)

k RS-232 interface

 

lINH/FLT (remote

mOutput and Remote

interface connector

connector

 

INHibit / internal

sense terminal block.

 

 

 

FauLT) connector.

 

 

 

 

Connector plug is

 

 

 

 

removable.

 

 

4

3

2

1

5

6

7

nFast/Normal switch o Fuse holder

p Power cord

 

 

connector (IEC 320)

 

Use the front panel Address menu to

Select the HP-IB or RS-232 interface (see chapter 4 in User’s Guide)

Select the HP-IB bus address (see chapter 4 in User’s Guide)

Configure the RS-232 interface (see chapter 4 in User’s Guide)

15

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. The following documents are shipped with your dc source:

a User's Guide (this document), contains installation, checkout, and front panel information

a Programming Guide, contains detailed HP-IB programming information

an HP VXIplug&play instrument driver, for Windows 95 and Windows NT 4.0

The following Getting Started Map will help you find the information you need to complete the specific task that you want to accomplish. Refer to the table of contents or index of each guide for a complete list of the information contained within.

Getting Started Map

Task

Where to find information

Installing the unit

User’s Guide

Line voltage connections

 

Computer connections

 

Load connections

 

Checking out the unit

User’s Guide

Verifying proper operation

 

Using the front panel

 

Calibrating the unit

 

Using the front panel

User’s Guide

Front panel keys

 

Front panel examples

 

Using the programming interface

User’s Guide

HP-IB interface

Programming Guide

RS-232 interface

 

Programming the unit using SCPI (and Compatibility)

Programming Guide

commands

 

SCPI commands

 

SCPI programming examples

 

Compatibility language

 

Programming the unit using the HP VXIplug&play

HP VXIplug&play installation sheet

instrument driver

and on-line help

Installing the instrument driver

NOTE:

Instrument driver functions

The driver must be installed on your computer to

C/C++ example programs

access the on-line information.

Visual BASIC example programs

Drivers for HP-UX are available on the web at

LabVIEW example programs

www.hp.com/go/power

HP VEE example programs

 

17

2 – General Information

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. Refer to the Safety Summary page at the beginning of this guide for general safety information. Before installation or operation, check the dc source and review this guide for safety warnings and instructions. Safety warnings for specific procedures are located at appropriate places in the guide.

Options and Accessories

 

Table 2-1. Options

Option

Description

100

87− 106 Vac, 47− 63 Hz

220

191− 233 Vac, 47− 63 Hz

230

207− 253 Vac, 47− 63 Hz

020

Front panel output binding posts

760

Isolation and polarity reversal relays (not available on HP 6631B)

1CM

Rack mount kit (HP p/n 5062-3974)

1CP

Rack mount kit with handles (HP p/n 5062-3975)

 

Accessory Rack slide kit )HP p/n 1494-0060)

910

Service manual with extra operating manuals

1Support rails are required when rack mounting units. Use E3663A support rails for HP rack cabinets, and E3664A for non-HP rack cabinets.

Table 2-2. Accessories

 

Item

 

HP Part Number

HP-IB cables

 

 

1.0 meter (3.3 ft)

 

10833A

2.0 meters (6.6 ft)

 

10833B

4.0 meters (13.2 ft)

 

10833C

0.5 meters (1.6 ft)

 

10833D

RS-232 cable

 

34398A

(9-pin F to 9-pin F, 2.5 meter, null modem/printer cable

 

 

with one 9-pin M to 25-pin F adapter

 

 

RS-232 adapter kit (contains 4 adapters)

 

34399A

9-pin M to 25-pin M for pc or printer

 

 

9-pin M to 25-pin M for pc or printer

 

 

9-pin M to 25-pin M for modem

 

 

9-pin M to 9-pin M for modem

 

 

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2 – General Information

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. It includes a dc source, which produces dc output with programmable voltage and current amplitude, and a highly accurate voltage and current meter, with the capability to measure very low-level currents. Additionally, the HP 66332A Dynamic Measurement DC Source has the ability to measure and characterize output voltage and current of pulse or ac waveforms.

Capabilities

Output Voltage and Current control with 12-bit programming resolution

Extensive measurement capability:

dc voltage and current.

rms and peak voltage and current (HP 66332A only).

16-bit measurement resolution (low range accurate down to 2 microamperes). Triggered acquisition of digitized current and voltage waveforms (HP 66332A

only).

Front panel control with 14-character vacuum fluorescent display, keypad, and rotary control for voltage and current settings.

Built-in HP-IB and RS-232 interface programming with SCPI command language.

Non-volatile state storage and recall.

Over-voltage, over-current, over-temperature, and RI/DFI protection features.

Extensive selftest, status reporting, and software calibration.

Front Panel Controls

The front panel has both rotary (RPG) and keypad controls for setting the output voltage and current. The panel display provides digital readouts of a number of output measurements. Annunciators display the operating status of the dc source. System keys let you perform system functions such as setting the HP-IB address and recalling operating states. Front panel Function keys access the dc source function menus. Front panel Entry keys let you select and enter parameter values. Refer to chapter 5 for a complete description of the front panel controls.

Remote Programming

NOTE: When shipped, HP 6631B/6632B/6633B/6634B units are set to the Compatibility programming language; HP 66332A units are set to the SCPI programming language.

To change the programming language from Compatibility to SCPI, press the front panel Address key, use to scroll to the LANG command, press Ì to select SCPI, then press Enter. Refer to the Programming Guide supplied with your dc source for further information about remote programming.

The dc source may be remotely programmed via the HP-IB bus and/or from an RS-232 serial port. HP-IB programming is with SCPI commands (Standard Commands for Programmable Instruments), which make the dc source programs compatible with those of other HP-IB instruments. Compatibility commands are also included to make the dc source compatible with

19

2 – General Information

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. The output of the dc source may be adjusted to any value within the boundaries shown.

Output

Voltage

CV operating line

 

 

 

Vmax

 

 

 

 

 

VSET

 

 

 

 

 

 

 

1

 

 

 

 

 

 

2

 

CC operating line

 

 

 

 

 

 

-

 

 

 

 

+

Output

 

 

 

 

 

 

-Imax

-ISET

0

ISET

Imax

 

Current

Figure 2-1. Dc Source Output Characteristic

The dc source can operate in either constant voltage (CV) or constant current (CC) over the rated output voltage and current. Although the dc source can operate in either mode, it is designed as a constant voltage source. This means that the unit turns on in constant voltage mode with the output voltage rising to its Vset value. There is no command for constant current operation. The only way to turn the unit on in constant current mode is by placing a short across the output and then enabling or turning the output on.

Note that the dc source cannot be programmed to operate in a specific mode. After initial turnon, the operating mode of the unit will be determined by the voltage setting, the current setting, and the load resistance. In figure 2-1, operating point 1 is defined by the load line traversing the positive operating quadrant in the constant voltage region. Operating point 2 is defined by the load line traversing the positive operating quadrant in the constant current region.

Figure 2-1 also shows a single range − two quadrant capability. This means that the dc source is capable of sourcing as well as sinking current over the output voltage range from zero volts to the rated maximum. The negative quadrant is identical to the positive quadrant. However, the negative current cannot be set independently; it tracks the value programmed for the positive current. Thus, if the positive current is set to 1 A, the negative current is also set to 1 A.

NOTE: If you attempt to operate the dc source beyond its output ratings, the output of the unit will become unregulated. This is indicated by the UNR annunciator on the front panel. The output may also become unregulated if the ac input voltage drops below the minimum rating specified in Appendix A.

Appendix A documents the dc source’s specifications and supplemental characteristics.

20

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. Warranty information is printed in the front of this guide.

Packaging Material

Until you have checked out the dc source, save the shipping carton and packing materials in case the unit has to be returned. If you return the dc source for service, attach a tag identifying the model number and the owner. Also include a brief description of the problem.

Items Supplied

The following user-replaceable items are included with your dc source. Some of these items are installed in the unit.

Table 3-1. Items Supplied

Item

Part Number

Description

Power Cord

contact nearest

A power cord appropriate for your location.

 

HP Sales and

 

 

Support Office

 

Digital connector

1252-1488A

4-terminal digital plug that connects to the back of the unit.

Output cover

06624-20007

Safety cover that installs over the output screw terminals.

Terminal block screws

N/A

6-32 X 3/8 inch screws.

Line Fuse

2110-0055

4 A for 100/120 Vac operation

 

2110-0002

2 A for 220/230 Vac operation

Feet

5041-8801

feet for bench mounting

User's Guide

5962-8196

Contains installation, checkout, and front panel information.

Programming Guide

5962-8198

Contains detailed HP-IB programming information.

Cleaning

Use a dry cloth or one slightly dampened with water to clean the external case parts. Do not attempt to clean internally.

WARNING: To prevent electric shock, unplug the unit before cleaning.

21

HP 6632B, 6633B, 66332A, 6634B, 6631B User Manual

3 - Installation

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).

Bench Operation

A fan cools the dc source by drawing air in through the sides and exhausting it out the back. Minimum clearances for bench operation are 1 inch (25 mm) along the sides. Do not block the fan exhaust at the rear of the unit.

Rack Mounting

The dc source can be mounted in a standard 19-inch rack panel or cabinet. Table 2-1 documents the HP part numbers for the various rack mounting options that are available for the dc source. Installation instructions are included with each rack mount option.

NOTE: Support rails or an instrument shelf is required when rack mounting units.

Figure 3-1. Outline Diagram

22

Installation - 3

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.)

2.Connect the power cord to the IEC 320 connector on the rear of the unit. If the wrong power cord was shipped with your unit, contact your nearest HP Sales and Support Office (refer to the list at the back of this guide) to obtain the correct cord.

Output Connections

The output terminal block has connections for the + and − output, the + and − sense inputs, and an earth ground terminal. The terminal block screws are 6-32 X 3/8 inch. Remove the safety cover by inserting a flat bladed screwdriver in the opening on the left side of the cover and pushing the locking tab to the left. This will release the cover.

Optional front panel binding posts are available to connect load wires for bench operation. The front panel binding posts are paralleled with the rear panel + and − connections. Before using the front panel binding posts, make sure that the output terminals are jumpered for local sensing.

NOTE: Front panel binding posts are provided for convenience. Only the rear panel terminals are optimized for noise, regulation, and transient response as documented in Appendix A.

Wire Considerations

To minimize the possibility of instability on the output,

keep load leads as short as possible

bundle or twist the leads tightly together to minimize inductance

Current Ratings

Fire Hazard To satisfy safety requirements, load wires must be large enough not to overheat when carrying the maximum short-circuit current of the dc source. If there is more than one load, then any pair of load wires must be capable of safely carrying the full-rated current of the dc source.

The following table lists the characteristics of AWG (American Wire Gage) copper wire.

Table 3-2. Ampacity and Resistance of Stranded Copper Conductors

AWG No.

Ampacity (in free air)

Resistance (at 20 deg. C)

 

 

Ω /m

Ω /ft

20

8.33

0.0345

0.01054

18

15.4

0.0217

0.00663

16

19.4

0.0137

0.00417

14

31.2

0.0086

0.00262

12

40

0.0054

0.00165

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