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
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
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 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 |
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U.S.A. |
declares that the Product |
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Product Name: |
a) Dynamic Measurement DC Source |
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b) System DC Power Supply |
Model Number: |
a) HP 66332A |
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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 |
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IEC 801-3:1984 / EN 50082-1:1992 - 3 V / m |
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IEC 801-4:1988 / EN 50082-1:1992 - 0.5 kV Signal Lines |
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1 kV Power Lines |
Supplementary Information: |
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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 |
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Bruce Krueger / Quality Manager |
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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
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
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 |
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Introduction |
35 |
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Front Panel Description |
35 |
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System Keys |
37 |
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Function Keys |
38 |
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Immediate Action Keys |
38 |
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Scrolling Keys |
38 |
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Metering Keys |
39 |
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Output Control Keys |
40 |
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Entry Keys |
41 |
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Examples of Front Panel Programming |
42 |
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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
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
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. |
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Use á and â |
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to set the resolution; |
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then adjust the value |
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with the knob. |
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1 |
2 |
3 |
4 |
5 |
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6 |
7 |
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8 |
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nTurns the dc source |
o System keys: |
p |
Function keys: |
q Entry keys: |
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on and off. |
♦ |
return to Local |
♦ |
enable/disable |
♦ |
enter values |
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mode |
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output |
♦ |
increment or |
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♦ |
set the HP-IB |
♦ |
select metering |
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decrement values |
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address |
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functions |
♦ |
ä |
and |
ã |
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♦ |
set the RS-232 |
♦ |
program voltage |
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select front panel |
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interface |
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and current |
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menu parameters. |
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♦ |
display SCPI |
♦ |
set and clear |
♦ |
á |
and |
â |
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error codes |
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protection |
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select a digit in |
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♦ |
save and recall |
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functions |
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the numeric entry |
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instrument states. |
♦ |
‚ and • |
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field. |
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scroll through the |
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front panel menu |
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commands. |
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10
1 – Quick Reference
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. |
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|
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 |
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Meter key to return to meter mode. |
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11
1 – Quick Reference
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.
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
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1 – Quick Reference |
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Front Panel Menus - At a Glance |
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Address |
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ADDRESS 7 |
Sets the HP-IB Address |
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‚ |
INTF HPIB |
Selects an interface (HPIB or RS232) |
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‚ |
BAUDRATE 300 |
Selects baud rate (300, 600, 1200, 2400, 4800, 9600) |
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‚ |
PARITY NONE |
Selects message parity (NONE, EVEN, ODD, MARK, SPACE) |
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‚ |
FLOW NONE |
Selects flow control (XON-XOFF, RTS-CTS, DTR-DSR, NONE) |
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‚ |
LANG SCPI |
Selects language (SCPI or COMP) |
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Recall |
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*RCL 0 |
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Recalls instrument state |
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Shift |
Save |
*SAV 0 |
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Saves present instrument state |
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Shift |
Error |
ERROR 0 |
Displays errors in SCPI error queue |
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Meter |
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12.000V 0.204A |
Measures output voltage and current |
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‚ |
12.500V MAX |
Measures peak output voltage1 |
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‚ |
1.000V |
MIN |
Measures minimum output voltage1 |
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‚ |
12.330V HIGH |
Measures the high level of a |
voltage pulse waveform1 |
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‚ |
0.080V |
LOW |
Measures the low level of a |
voltage pulse waveform1 |
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‚ |
12.000V RMS |
Measures rms voltage1 |
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‚ |
0.350A |
MAX |
Measures peak output current1 |
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‚ |
0.050A |
MIN |
Measures minimum output current1 |
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‚ |
0.400A |
HIGH |
Measures the high level of a |
current pulse waveform1 |
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‚ |
0.012A |
LOW |
Measures the low level of a |
current pulse waveform1 |
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‚ |
0.210A |
RMS |
Measures rms current1 |
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Voltage |
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VOLT 20.000 |
Sets the output voltage |
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Current |
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CURR 2.000 |
Sets the output current |
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Protect |
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OC -- -- -- -- |
Protection status (example shows overcurrent tripped) |
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Output |
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*RST |
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Places the dc source in the factory-default state |
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‚PON:STATE RST Select the power-on state command (RST or RCL0)
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‚ |
PROT:DLY 0.08 |
Sets the output protection delay in seconds |
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‚ |
RI LATCHING |
Sets the remote inhibit mode (LATCHING, LIVE, or OFF) |
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‚ |
DFI OFF |
Sets the discrete fault indicator state (ON or OFF) |
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‚ |
DFI:SOUR OFF |
Selects the DFI source (QUES, OPER, ESB, RQS, or OFF) |
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‚ |
PORT RIDFI |
Sets the output port functions (RIDFI or DIGIO) |
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DIGIO 7 |
Sets and reads the I/O port value (0 through 7) |
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‚ |
RELAY ON |
Sets the output relay state (ON or OFF) 2 |
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RELAY NORM |
Sets the output relay polarity (NORM or REV) 2 |
Shift |
OV |
VOLT:PROT 22 |
Sets overvoltage protection level |
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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). |
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Use ä |
and ã |
to select menu parameters. UseMeter to exit any menu and return to metering mode. |
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1Not available on HP 6631B - 6634B or in Compatibility mode. |
2Not available on HP 6631B. |
13
1 – Quick Reference
NOTE |
Most [optional] commands have been omitted for clarity. Refer to the |
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Programming Guide for a complete description of all programming commands. |
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ABORt |
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SENSe |
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CALibrate |
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:CURRent :RANGe <n> |
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:CURRent |
[:POSitive] |
:DETector ACDC | DC1 |
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:NEGative |
:FUNCtion “VOLT”| “CURR” |
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1 |
:MEASure :LOWRange |
:SWEep |
:OFFSet :POINts <n>1 |
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:AC1 |
:POINts <n> |
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:DATA <n> |
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:TINTerval <n> |
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:LEVel P1 | P2 | P3 | P4 |
[SOURce:] CURRent <n> |
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:PASSword <n> |
:TRIGgered <n> |
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:SAVE |
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:PROTection :STATe <bool> |
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:STATe <bool> [, <n>] |
DIGital :DATA <n> |
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:VOLTage |
:PROTection |
:FUNCtion RIDF | DIG |
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DISPlay |
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VOLTage |
<n> |
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<bool> |
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:TRIGgered <n> |
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:MODE NORMal | TEXT |
:PROTection <n> |
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:TEXT <display_string> |
:ALC :BANDwidth? | :BWIDth? |
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INITiate |
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STATus |
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:SEQuence[1|21] |
:PRESet |
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:NAME TRANsient | ACQuire1 |
:OPERation [:EVENt]? |
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:CONTinuous :SEQuence[1], <bool> |
:CONDition? |
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:NAME TRANsient, <bool> |
:ENABle <n> |
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MEASure | FETCh |
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:NTRansition <n> |
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:ARRay |
:CURRent?1 |
:PTRansition <n> |
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:VOLTage?1 |
:QUEStionable [:EVENt]? |
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[:CURRent][:DC]?2 |
:CONDition? |
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:ACDC?1 |
:ENABle <n> |
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:HIGH?1 |
:NTRansition <n> |
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:LOW?1 |
:PTRansition <n> |
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:MAX?1 |
SYSTem |
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:MIN?1 |
:ERRor? |
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:VOLTage |
[:DC]?2 |
:LANGuage SCPI | COMPatibility |
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:ACDC?1 |
:VERSion? |
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:HIGH?1 |
:LOCal |
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:LOW?1 |
:REMote |
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:MAX?1 |
:RWLock |
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:MIN?1 |
TRIGger |
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OUTPut |
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:SEQuence 2 | :ACQuire [:IMMediate]1 |
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<bool> [,NORelay] |
:COUNt |
:CURRent <n>1 |
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:DFI <bool> |
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:VOLTage <n>1 |
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:SOURce QUES | OPER | ESB | RQS | OFF |
:HYSTeresis:CURRent <n>1 |
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:PON :STATe RST | RCL0 |
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:VOLTage <n>1 |
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:PROTection :CLEar |
:LEVel |
:CURRent <n>1 |
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:DELay <n> |
|
:VOLTage <n>1 |
||
:RELay [:STATe] <bool>3 |
:SLOPe |
:CURRent POS | NEG | EITH1 |
||
:POLarity NORM | REV3 |
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:VOLTage POS | NEG | EITH1 |
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: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 |
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|
||
jHP-IB (IEEE-488) |
k RS-232 interface |
|
lINH/FLT (remote |
mOutput and Remote |
interface connector |
connector |
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INHibit / internal |
sense terminal block. |
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|
|
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
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.
|
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 |
|
|
18
2 – General Information
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 |
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|
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|
|
VSET |
|
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|
1 |
|
|
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2 |
|
CC operating line |
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- |
|
|
|
|
+ |
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
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
3 - Installation
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
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.
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 |
23