HP 654A User manual

Operating Manual
Analog Programmable
DC Power Supplies
Series 654xA,655xA,657xA
HP Part No. 5959-3374
SERIAL NUMBERS
HP Model 6541A:3215A~00108 and Above*
HP Model 6542A:3221A-00113 and Above*
HP Model 6543A:3218A-00113 and Above*
HP Mode! 6544A:3219A-00113 and Above*
HP Model 6545A:3215A ™ 00108 and Above*
HP Model 6551A;3207A-00103 and Above*
HP Model 6552A;3203A-00103 and Above*
HP Model 6553A:3202A-00103 and Above*
HP Model 6554A:3205A"00103 and Above*
HP Model 6555A:3209A-^0108 and Above*
HP Mode! 6571A:3206A-00103 and Above*
HP Mode! 6572A;3216A-00108 and Above*
HP Model 6573A:3223A-00108 and Above*
HP Model 6574A:3230A-00113 and Above*
HP Model 6575A:3242A-00113 and Above*
* For instruments with higher serial numbers,
a change page may be Included.
HEWLETT
WlrJB PACKARD
Microfiche Part No. 5959-3375
Printed in USA January, 1993

CERTIFICATION
Hewlett-Packard Company certifies that this product met its published specifications at time of
shipment from ike factory. Hewlett-Packard further certifies that Us calibration measurements are
traceable to the United States National Bureau of Standards, to the extend 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. TIP 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,
HP Company will, at its option, either repair or replace products which prove to be defective. HP
does not warrant that the operation of 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 (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 siaiemenis apply only to the standard product warranty. Warranty options, extended
support contracts, 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.

MANUAL CHANGES
Models 65UIA, 65U2A, 65U3A, 65UUA, 65U5A
Models 655IA, 6552A, 6553A, 655 ^A, 6555A
Models 657IA, 6572A, 6573A, 657UA, 6575A
Manual HP P/N 5959 ^ 337 ^
Manual Printing Date 01/93
Change Date 06/l6/93
Make all corrections in the manual listed under "Errata." Then, check the following table
for your power supply serial number and enter any change,(s) listed for that serial number.
MODEL 65UIA
MODEL 655IA
SERIAL
Prefix
Number MAKE CHANGES
ERRATA
MODEL 6542 A
SERIAL
Prefix Number MAKE CHANGES
ERRATA
MODEL 6552A
SERIAL
Prefix
Number MAKE CHANGES
ERRATA
MODEL 65U3A
MAKE CHANGES
ERRATA
MODEL 6553A
MAKE CHANGES
ERRATA
MODEL 65UUA
SERIAL
Number
MAKE CHANGES
ERRATA
MODEL 655 hA
SERIAL
Prefix
Number MAKE CHANGES
ERRATA
MODEL 65U5A
MAKE CHANGES
ERRATA
MODEL 6555A
Number I MAKE CHANGES

continued
Page 2 - HP P/N 5959-3374 changes
MODEL 657 IA
SERIAL
Prefix I Number j MAKE CHANGES
all I ! ERRATA
MODEL 6572A
1 SERIAL
1
1
1 Prefix 1 Number
1
MAKE CHANGES i
1 ALL 1
1 !
1
i
ERRATA j
MODEL 6 573A
SERIAL ^
-I
Prefix I Number j MAKE CHANGES
ALL I j ERRATA
MODEL 6574a
- SERIAL I
Prefix I Number j MAKE CHANGES
all I I ERRATA
MODEL 6575 A
'""serial ^ ~
Prefix i Number | MAKE CHANGES
. ! . .
all i I ERRATA
ERRATA:
On page 4-12, make the following correction
to part B of Figure 4-9:
On voltage programming source "A", move the
VP wiring connection from the top pin of the
connector to the second pin from the top (see
correct position in part A).

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 user’s failure to comply with these
requirements.
BEFORE APPOTNG POWER
Verify that the instrument is set to match the available line voltage.
GROUND THE INSTRUMENT
This product is a Safety Class 1 instrument (provided with a protective earth terminal). 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 three-conductor power cable,
with the third 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. If the instrument is to be
energized via an external autotransformer for voltage reduction, be certain that the autotransformer
common terminal is connected to the neutral (earth pole) of the ac power lines (supply mains).
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 EXPIOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT REMOVE THE INSTUMENT COVER
Operating personnel must not remove instrument covers. Component replacement and internal
adjustments must be made only by qualified service personnel.
DO NOT EXCEED INPUT RATINGS
This instrument may be equipped with a line filter to reduce electromagnetic interference and must
be connected to a properly grounded receptacle to minimize electric shock hazard. Operation at line
voltages or frequencies in excess of those stated on the line rating label may cause leakage currents in
excess of 5.0 mA peak.
SAFETY SYMBOLS
A -I-
I ' \ Refer to the operating manual. Indicates earth ground terminal.
WARNING This 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.
CAUTION This 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 damage to or
destruction of part or all of the instrument. Do not proceed beyond a CAUTION
sign until the indicated conditions are fully understood and met.
Instruments that appear damaged or defective should be made inoperative and secured against
unintended operation until they can be repaired by qualified service personnel.
il

Maniiiacturer’s Name:
Manufacturer’s Address:
DECLARATION OF CONFORMITY
according to ISO/IEC Guide 22 and EN 45014
Hewlett-Packard Company
150 Green Pond Road
Rockaway, New Jersey 07866
U.S.A.
declares tiiat this equipment conforms to the following product speciftcations:
Safety:
EMC:
HD 401S1/IEC 348
EN 55011 (1991)/CISPRrll Group I Class B
EN 50082-1 (1991)/IEC 801-2 4 kV CD, 8 kV AD
EN 50082-1 (1991)/IEC 801-3 3 V/m
EN 50082-1 (1991)/IEC 801-4 1 kV
New Jersey
Location
21 September 1992
Date
Mord Shamir/Quality Manager
Herstellerbescheinigung
Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenlarminformationsverordnung vom 18 Januar 1991.
* Schalldruckpegel Lp < 70 dB{A) * Am Arbeitsplatz * Normaler Betrieb * Nach EN 27779
(Typpriifung)
Manufacturer’s Declaration
This statement is provided to comply with the requirements of the German Sound Emission
Directive, from 18 January 1991. This product has a sound pressure emission (at the operator
position) < 70 dB.
* 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. Also, if the serial number prefix of
your power supply is higher than those listed on the title page of this manual, then it may or
may not include a change sheet. That is because even though the higher serial prefix indicates
a design change, the change may not affect the content of the manual.
Edition 1 ... February 1992 (HP Models 6541A - 6545A, 6551A - 6555A, 6571 - 6575A)
.April 1992 (HP Models 6541A - 6545A, 6551A - 6555A, 6571 - 6575A)
.January 1993 (HP Models 6541A - 6545A, 6551A - 6555A, 6571 - 6575A)
© Copyright 1992, 1993 Hewlett-Packard Company
This document contains propretary 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.
Hi

GENERAL INFORMATION
INTRODUCTION
This is the operating manual for your HP Series 654xA, 655xA, and 657xA power supplies.
Unless otherwise stated, the information in this manual applies to all models in the series.
These supplies are the analog-programmable counterparts of the HP Series 664xA, 665xA, and
667xA HP-IB System power supplies.
SAFETY CONSIDERATIONS
This power supply 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 3-wire ground receptacle. Refer to the Safety Summary page at the beginning of this
manual for general safety information. Before installation or operation, check the power
supply and review this manual for safety warnings and instructions. Safety warnings for
specific procedures are located at appropriate places in the manual.
INSTRUMENT IDENTIFICATION
The power supply is identified by a unique two-part serial number, such as 3143A 00177. The
first part, or prefix, is a number-letter combination that provides the following information:
3143 The year and week of manufacture or last significant design change. Add 1960 to the hrst two digits to
determine the year. For example, 31=1991, 32=1992, etc. The last two digits specify the week of the year (43
= the 43rd week).
A The letter indicates the coimtry of manufacture, where A = USA.
OPTIONS
Option
Description
Used with HP Series
e64xA
eSBxA
657xA
lOO
Input power 100 Vac, nominal
X X
200
input power 200 Vac, nominal
X
220
Input power 220 Vac, nominal
X
X
230
Input power 230 Vac, nominal
X X
240 Input power 240 Vac, nominal
X
X
831
Power cord, 12 AWQ, UL listed, CSA certified, without pluR
X
832
Power cord. 4 harmonized, without pIuR
X
8S4
Power cord. 10 AWQ, UL listed, CSA certifled, without pluR
X
841
Power cord, 13 AWG, UL listed, CSA certified, with NEMA e.30P 3OA/aB0V plur
X
842
Power cord, 4 mm^, harmonised, with lEC 809 S3A/230V pluR
X
843
Power cord, 13 AWQ, UL listed, CSA certified, with JIS C8S0S 3BA/3S0V ptuR
X
644
Power cord, 10 AWG, UL listed, CSA certified, with NEMA LO-SOP S0A/250V locking
plug
X
806 Rack mount kit (HP 6062-8974)
X
Rack mount kit (HP 5O62-S07T)
X
X
006
Rack mount kit with handles (HP 5062-8876)
X
Rack mount kit with handles (HP 6062-8983)
X
X
910
Service manual with extra Operating manual
X X
X
Introduction
General Information 1-1

ACCESSORIES
HP No. Description
1494-0058 Heavy duty slide mount kit for Series 657xA
1494-0059 Standard slide mount kit for Series 654xA/655xA
DESCRIPTION
These units form a family of unipolar, analog programmable power supplies organized as
follows:
Family
Series 654xA
Series 655xA
Series 657xA
Power Models
200 W HP 6541A, 6542A, 6543A, 6544A, 6545A
500 W HP 6551A, 6552A, 6553A, 6554A, 6555A
2000 W HP 6571A, 6572A, 6573A, 6574A, 6575A
This family is similar in performance to the corresponding HP-IB system power supplies.
Analog Family Corresponding HP-IB Family
HP 654xA HP 664xA
HP 655xA HP 665xA
HP 657xA HP 667xA
Each power supply is programmable locally from the front panel or remotely via a rear-panel
analog control port. Operational features include:
■ Constant voltage (CV) or constant current (CC) output over the rated output range.
■ Built-in overvoltage (OV), overcurrent (OC), and overtemperature (OT) protection.
■ Automatic turn-on selftest
■ Pushbutton nonvolatile storage and recall of up to 5 operating states
■ Local or remote sensing of output voltage
■ Auto-parallel operation for increased total current
m Series operation for increased total voltage
■ Analog input for remote programming of voltage and current
■ Voltage output for external monitoring of output current
■ User calibration from the front panel
Front Panel Programming
The front panel has both rotary (RPG) and keypad controls for setting the output voltage
and current. The panel display provides digital readouts of the output voltage and current.
Other front patnel controls permit:
■ Enabling or disabling the output
■ Setting the overvoltage protection (OVP) trip voltage
m Enabling or disabling the overcurrent protection (OCP) feature
■ Saving and recalling operating states
■ Calibrating thepower supply
Analog Programming
The power supply has an analog port for remote programming. The output voltage and/or
current of the power supply may be controlled by d-c programming voltages applied to this
port. The port also provides a monitor output that supplies a d-c voltage proportional to the
output current.
1-2 General Information
Accessories

Output Characteristic
General
The power supply can operate in either CV (constant voltage) or CC (constant current)
over its voltage and current ratings (see “Performance Specifications”). The operating
locus is shown by the Output Characteristic Curve in “Supplemental Characteristics”. The
operating point is determined by the voltage setting (Vg), the current setting (Is), and the
load impedance. Two operating points are shown. Point 1 is defined by the load line cutting
the operating locus in the constant-voltage region. This region defines the CV mode. Point
2 is defined by the load line cutting the operating locus in the constant-current region. This
region defines the CC mode.
Downprogramming
The power supply can sink current for more rapid down programming in the CV mode. For
Series 654xA and 655xA supplies, this capability is defined by the second quadrant area (-!«)
of the Output Characteristic Curve. These supplies can sink about 20% of their maximum
rated positive output current. For Series 657xA , this is an uncharacterized current-sinking
area that provides a limited downprogramming capability.
SPECIFICATIONS AND SUPPLEMENTAL CHARACTERISTICS
Table 1-1 lists the specifications and supplemental characteristics of the Series 654xA and
655xA power supplies. Table 1-2 lists the specifications and supplemental characteristics for
the Series 657xA power supplies. Specifications are warranted over the specified temperature
range. Supplemental characteristics are not warranted but are descriptions of performance
determined either by design or type testing.
Output Characteristic
General Information 1-3

Table 1-1a. Performance Specifications for Series 654xA and 655xA (Note 1)
Parameter
HP Model N
umber and Parameter Value
Speafications are warranted over the temperature range 0 to 55° C with a resistive load and the output connected for
local sensing.
Output Ratings
Voltage:
6541A/6551A
6542A/6552A
6543A/6553A
6544A/6554A
6545A/6555A
0.8V
0- 20 V
0- 35 V
0 ■ 60 V
0- 120 V
Current:*
6541A
6542A
6543A
6S44A
6545A
0 - 20 A
0- 10 A
0 - 6 A
0- 3.5 A
0- 1.5 A
6551A
65S2A
6553A
0S54A
65S5A
0-50 A
0- 25 A
0- 15 A
0.9 A
0 - 4 A
* Derate the output current 1 % per
®C from 40° C to 55° C.
Front Panel Programming Acc
uracy (® 26° C
± 5“ C)
6541A/6551A
6542A/6552A
6543A/6553A
C544A/6554A
6545A/6555A
Voltage:
0.06%+5 mV
0.06%-|-10 mV
0.06%-i-15 mV
0.06%-f-26 mV
0.06%+51 mV
Current:
6541A
6542A
6543A
6544A
6545A
0.14%-f26inA
0.14%-f-13 mA
0.14%-(-7mA
0.14%-f4 mA
0.14%+2 mA
6551A
6552A
6553A
6554A
6555A
0.15%-f-60mA
0.15%-)-25 mA
0.15%-(-13 mA
0.15%4-8 mA
Ripple Noise (from 20 Hz to 20 MHz with
outputs ungrounded, or with either outout t
grounded)
Constant Voltage (rms):
6541A/6551A
6542A/6552A
6543A/6553A
6544A/6554A
6545A/6555A
300 mV
300 mV
400 mV
500 mV
700 mV
Constant Voltage (p-p):
6541A/6551A
6542A/6552A
6543A/6553A
6544A/6554A
6545A/6555A
3 mV
3 mV
4 mV
5 mV
7 mV
Constant Current (rms):
6541A
6542A
6543A
6544A
6545A
10 mA
5 mA
3 mA
1.5 mA
1 mA
6551A
6552A
6553A
6554A
6555A
25 mA
10 mA
5 mA
2 mA
Readback Accuracy (with respe
ct to actual output ® 25° C ± 5° C)
Voltage:
6541A/6551A
6542A/6552A
6543A/6553A
6544A/6554A
6545A/6555A
0.07%-i-6 mV
0.07%-|-15 mV
0.07%-f25 mV
0.07%+40 mV
0.07%-|-80 mV
+Current:
6541A
6542A
6543A
6544A
6545A
0.15%-}-26mA
0.15%-}-13mA
0.i5%-|-6.7 mA
0.15%-|-4.1 mA
0.15%-|-1.7 mA
6551A
6552A
6553A
6554A
6555A
0.15%+67mA
0.15%4-26 mA
0.15%+15 mA
0.15%+7 mA
0.15%+3mA
-Current:
6641A
6542A
6S43A
6S44A
6545A
0.35%+40 mA
0.35%+20 mA
0.35%-|-12 mA
0.35%+6.8 mA
0.35%+2.9 mA
6551A
6S52A
6553A
6554A
C555A
0.35%-l-100 mA
0.35%+44 mA
0.35%+24 mA
0.35%-l-15 mA
Load Regulation (change in out
put voltage or
current for any load change within ratings)
Voltage:
6541A/6551A
6542A/6552A
6543A/6553A
6544A/6554A
C545A/6555A
1 mV
2 mV
3 mV
4 mV
5 mV
Current:
6541A
6542A
6543A
6544A
6545A
1 mA
0.5 mA
0.25 mA
0.25 mA
0.25 mA
6551A
6552A
6553A
6554A
6555A
2 mA
1 mA
0.5 mA
0.5 mA
0.5 mA
Note 1: For Supplemental Characteristics, see Table 1-lb
1-4 General Information
Series 654xA/655xA
Specifications