HP 6034A User manual

HP
6034A
SYSTEM
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DC POWER SUPPLY

CERTIFICATION
Hewlett-Packard Company certifies that this product met its published specifications at the 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 instrument product is warranted against defects in material and workmanship for a period of
one year from date of shipment. During the warranty period, Hewlett-Packard Company wilt, at its option, either
repair or replace products which prove to be defective.
For warranty service or repair, this product must be returned to a service facility designated by HP. Buyer shall
prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer, However, Buyer
shall pay all shipping charges, duties, and taxes for products returned to HP from another country.
HP warrants that its software and firmware designated by HP for use with an instrument will execute its programm¬
ing instructions when properly installed on that instrument. HP does not warrant that the operation of the instru¬
ment, or software, or firmware will be uninterrupted or error free.
LIMITATION OF WARRANTY
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer,
Buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmen¬
tal specifications for the product, or improper site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRAN¬
TIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'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
Product maintenance agreements and other customer assistance agreements are available for Hewlett-Packard pro¬
ducts.
For any assistance, contact your nearest Hewlett-Packard Sales and Service Office. Addresses are provided at the
back of this manual.

.

HEWLETT
PACKARD
A
OPERATING AND SERVICE MANUAL FOR
AL NUMBERS
For instruments with Serial Numbers below 2231A-00831,
check Appendix C. For instruments with Serial Numbers above
2231A 00831, a change page may be included.

SAFETY SUMMARY
The following general safety precautions must be observed during all phases of operation, service, and repair of this instru¬
ment. 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.
BEFORE APPLYING POWER.
Verify that the product is set to match the available line
voltage and the correct fuse is installed.
GROUND THE INSTRUMENT.
This product is a Safety Class 1 instrument (provided with a
protective earth terminal). To minimize shock hazard, the in¬
strument chassis and cabinet must be connected to an elec¬
trical ground. The instrument must be connected to the ac
power supply mains through a three-conductor power cable,
with the third wire firmly connected to an electrical ground
(safety ground) at the power outlet. For instruments designed
to be hard-wired to the ac power tines (supply mains), connect
the protective earth terminal to a protective conductor before
any other connection is made. Any interruption of the protec¬
tive (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 (earthed pole) of the ac power lines (supply mains).
INPUT POWER MUST BE SWITCH
CONNECTED.
For instruments without a built-in line switch, the input power
lines must contain a switch or another adequate means for
disconnecting the instrument from the ac power lines (supply
rnains).
This instrument may be equipped with a line filter to reduce
electromagnetic interference and must be connected to a pro
perly grounded receptacle to minimize electric shock hazard.
Operation at line voltages or frequencies in excess of those
stated on the data plate may cause leakage currents in excess
of 5.0 mA peak.
Instruction manual symbol: the product
will be marked with this symbol when it
is necessary for the user to refer to the
instruction manual (refer to Table of
Contents).
Indicates hazardous voltages.
Indicate earth (ground) termina
WARNING
The WARNING sign denotes a hazard. It
calls attention to a procedure, practice,
or the like, which, if not correctly per¬
formed or adhered to, could result in
personal injury. Do not proceed beyond
a WARNING sign until the indicated
conditions are fully understood and met.
Do not operate the instrument in the presence of flammable
gases or fumes.
KEEP AWAY FROM LIVE CIRCUITS.
Operating personnel must not remove instrument covers.
Component replacement and internal adjustments must be
made by qualified service personnel. Do not replace com
ponents with power cable connected. Under certain condi¬
tions, dangerous voltages may exist even with the power cable
removed. To avoid injuries, always disconnect power,
discharge circuits and remove external voltage sources before
touching components.
DO NOT SERVICE OR ADJUST ALONE.
Do not attempt internal service or adjustment unless another
person, capable of rendering first aid and resuscitation, is
present.
The CAUTION sign denotes a hazard. I?
calls attention to an operating pro¬
cedure, or the like, which, if not correct¬
ly 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 con¬
ditions are fully understood and met.
Because of the danger of introducing additional hazards, do
not install substitute parts or perform any unauthorized
modification to the instrument. Return the instrument to a
Hewlett-Packard Sales and Service Office for service and
repair to ensure that safety features are maintained.
Instruments which appear damaged or defective should be made inoperative and secured against unintended operation until
they can be repaired by qualified service personnel.

QNTEWTS
11 Introduction.1-1
1-3 Specifications.11
1-5 Safety Considerations.1-1
1-7 Instrument and Manual Identification.1-1
1-10 Description.1-1
1 1 6 Options. 1-1
1-18 Accessories.1-2
1-20 HP-IB Interconnection Cables and Connectors.. 1-2
1-23 Ordering Additional Manuals.1-2
1-25 Related Documents.1-2
1-27 HP-IB Compatibility.1-3
2-1 Introduction.2-1
2-3 Initial Inspection.2-1
2-5 Mechanical Check.2 1
2-7 Electrical Check.2 1
2-9 Preparation for Use.2-1
2-11 Location and Cooling.2-2
2-13 Outline Diagram.2-2
2 15 Bench Operation.2 2
2-17 Rack Mounting.2.-2
2-19 Input Power Requirements.2-2
2 21 Power Cable.2 2
2-25 Line Voltage Option Conversion.2-2
2-27 Repackaging for Shipment.2-4
Section ill
OPERATING INSTRUCTIONS
3-1 Introduction.3 1
3-3 Controls and Indicators.3 1
3-5 Output Range for an Autoranging Power
Supply.3-1
3 1 0 Overrange.3-4
3-13 Turn-On Checkout Procedure.3 4
3 16 Initial Setup and Interconnections.3 5
3 17 Connecting the Load.3-5
3-24 Overvoltage Protection (OVP).3-6
3-26 Local Adjustment.3-6
3-27 Local OVP Reset.3-6
3-28 Remote Adjustment.3-6
3-29 Remote OVP Reset.3-6
3-30 Remote Voltage Sensing.3-6
3-35 Auto-Parallel Operation.3-7
3-37 Setting Output Voltage and Current.3-8
3-38 Overvoltage Protection in Auto-Parallel.3-8
3-39 Auto-Parallel with Remote Voltage
Sensing.;.3-8
3-40 Auto-Series Operation.3-8
3-44 Setting Output Voltage and Current.3-9
3-45 Resistor Values. 3-9
3-50 Overvoltage Protection in Auto-Series.3-10
3-51 Auto-Series with Remote Voltage
Sensing.3-10
3-52 Auto-Tracking Operation.3-10
3-55 Resistor Values.3-11
3-62 Setting the Current Controls.3-11
3-63 Overvoltage Protection in Auto-Tracking..3-11
3-64 Auto-Tracking with Remote Voltage
Sensing.3-11
3-65 HP-IB.3 11
3-70 Current-Monitor Output Signal.3-12
3-72 Protective Circuits.3-12
3-74 Local Operation.3-12
3-76 Constant Voltage Operation.3 12
3-78 Constant Current Operation.3-12
3-80 Return to Local.3 12
3-82 HP-IB Operation.3-13
3-83 Interface Functions.3-13
3-85 Multiline Message Control Functions.3-13
3 86 Service Request.3 13
3-89 Serial Poll. 3-15
3 94 Parallel Poll.3-15
3 97 Remote Local.3-15
3 98 Device Clear.3 15
3-99 Device Trigger.3-15
3-100 HP-IB Address Selection.3-15
3 103 Programming Syntax.3-16
3-105 Initial Conditions.3-16
3-106 Mode.3-16
3 108 Delay.3 16
3 110 Interrupt Mask.3-17
3 111 Potential (Voltage).3 17
3 115 Current.3-17
3-117 Soft Voltage Limit (Upper Value).3-18
i

3-122 Soft Current Limit (Upper Value).3-18
3-124 Set Reset.3-18
3-128 Go.3-18
3 1 29 Trigger.3-18
4-1 Introduction.4-1
4-4 HP-IB Circuits.4 1
4-7 Transceivers and Bus Functions.4-1
4-16 Serial Poll/Receive Handshake Monitor.4-2
4-19 Listen/T.E.I/Talk Monitor.4 2
4 2 1 Device Trigger Monitor.4 2
4-23 Device Clear Monitor.4-2
4 25 Transmit Handshake Monitor.4 2
4-27 HP IB Interrupt Monitor
and Pulse Generator.4 2
4 30 Load/Shift Control.4-2
4-33 Receive Handshake Control.4 2
4-35 Transmit Ready Control.4 4
4-37 Data/Status Multiplexers.4-5
4 40 Data Shifter/Output Buffer...4 5
4-44 Isolation Components.4 5
4 46 Microcomputer. .4-5
4-48 Memory Circuits.4-5
4-51 Microprocessor Interrupt.4-5
4-59 CRU Clock Generator.4 8
4 61 I/O Address Decoding.4-8
4 63 DAC Circuits.4-8
4-65 Front-Panel Assembly.4-8
4-67 I/O Inputs.4 8
4 69 I/O Outputs.48
4 71 Constant Current Reference Circuit.4 8
4 77 Constant Voltage Reference Circuit.4-9
4 79 Voltmeter Range Circuit.4-9
4-81 Rotary Pulse Generator Decoders.4 10
4 84 Voltmeter and Current Meter.4-10
4 86 Power Mesh and Control Board.4 10
4 91 Input AC Circuits.4 10
4 93 DC to DC Converter.4-11
4 99 Constant Voltage (CV) Control Circuit.4-13
4 103 Constant Current (CO Control Circuit.4 13
4-105 Control Voltage.4-13
4 108 Pulse Width Modulator.4 13
4 111 PWM Fast Turn Off.4-13
4 113 Primary Current (Ip) Limit.4 13
4 116 Bleed Circuit.4 14
4-118 Down Programmer.4-14
4-122 Overvoltage Protection Circuit.4-14
4425 AC Dropout Detector.4 44
4-127 Bias Voltage Detector.4-14
4-130 Over Temperature Detector.4-14
5-1 Introduction.5-1
5-3 Test Equipment Required.54
5-6 Performance Test.5-1
5-7 Measurement Techniques.5-1
5-9 Selecting a Load Resistor.5-1
541 Connecting a Current Monitoring
Resistor.5-1
542 Constant Voltage Tests.5-1
5-15 Rated Voltage and Voltmeter
Accuracy. 5-3
5-16 Load Effect (Load Regulation).5-3
548 Source Effect (Line Regulation).5-3
5-20 PARD (Ripple and Noise).5-4
5-22 Ripple Measurement Techniques.5-4
5-25 Ripple Measurement Procedure.5 5
5-26 Noise Spike Measurement
Techniques.5-5
5 2 9 Noise Spike Measurement
Procedure.5 5
5 31 Load Transient Recovery Time.5-6
5-32 Measurement Techniques.5-6
5-34 Measurement Procedure.5-6
5 35 Temperature Coefficient.5-7
5 39 Drift (Stability). .57
5 42 Constant-Current Tests.5-7
5-44 Current Output and Current Meter.5-8
5-45 Load Effect (Load Regulation).5-8
5-47 Source Effect (Line Regulation).5 8
5-49 PARD (Ripple and Noise).5 9
5 53 Troubleshooting.5-9
5 54 Introduction.5-9
5-57 Initial Procedures.540
5-59 Optional Service Package.540
5-61 Self Test and Test Mode.510
5-68 Turn-On Self Test. 5-13
5-69 Test Mode Self Tests.543
5-74 Test Mode Signature Analysis.545
ii

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MTENTS (co
5-76 LED Test Mode.5-15
5-78 Troubleshooting Trees.5-15
5-81 Troubleshooting Test Setup.5-16
5-82 Signature Analysis.5-16
5-92 Free-Run Mode Procedure.5-18
5-96 Signature Analysis Procedure.5-18
5-99 Input and Output Ports.5-21
5-101 Repair and Replacement.5-68
5-103 Front-Panel Assembly.5-66
5-105 Control Board.5-66
5-107 Rotary Pulse Generator (RPG).5-66
5-109 Power Mesh Thermal Resistors.5-67
5-111 Current-Monitor Resistor Heatsink.5-67
5-113 A5 Regulator.5-67
5-116 HP-IB Bias Power Supply Repair.5 67
5-118 Replacement Parts.5-68
5-121 Calibration.5 68
5-123 Initial Setup.5-68
5-124 Remote OVP Calibration.5 68
5-125 Ip Limit Calibration.5-68
5-127 Regulation Adjustment.5-69
5-128 Constant Voltage Circuit Calibration.5-69
-130 Constant Current Circuit Calibration.5-69
-132 Front-Panel Voltmeter Calibration.5-69
5-133 Front-Panel Current Meter Calibration.5-70
5-134 Remote Current Meter Calibration.5-70
5-135 Remote Voltmeter Zero Calibration.5 70
5-136 Remote Voltmeter Full Scale Calibration.5 70
Section Vi
REPLACEABLE PARTS
6-1 Introduction.6-1
6-4 Ordering Information.6-1
6-1 Introduction.6-1
6-4 Ordering Information.6-1

IEEE Std 488-1978 Digital Interface for Programmable
Instrumentation, corrected edition July 25, 1980, or
later, available from:
IEEE
345 East 47th Street
New York, NY 10017
The 6034A implements the following HP-IB interface
functions:
SHI {Source Handshake!
AH1 (Acceptor Handshake)
T1 (Talker)
LI (Listener)
SRI (Service Request)
RL1 (Remote Local)
PP1 (Parallel Poll)
DC1 (Device Clear)
DTI (Device Trigger)
Table 1-1. Specifications and Supplemental Characteristics
All performance specifications are measured at rear-panel ter¬
minals with a resistive load, ambient temperature 25°C ± 5°C.
DC Output; Voltage and current can be programmed via
HP-IB or front-panel control over the following ranges:
Voltage: 0 to 60 V Current: 0 to 10 A
See graph below for maximum output power. (This power is
available at load with up to 0.5 V drop in each load lead.)
/ E P E / P
10 20 200 60 3.3 200
9 23
207
55
3.7 204
8
27.5
220 50 4 2
210
7 32 5 2275
45
4.9
221
6 38 228 40
5.7
228
5
44 5 222 5 35 6.5
228
4
52 5 2i0 30 75 225
25 8.5 213
20 10.0 200
OUTPUT CURRENT
Load Effect (Load Regulation): For load change equal to the
maximum available current rating of the supply at the set
voltage (CV), or maximum available voltage rating at the
set current (CC).
Voltage; ±0.01% ±3 mV Current: 0.01% +3mA
Source Effect:
Voltage: 0.01% + 2 mV Current: 0.01% +2 mA
PARD: (Ripple and Noise) RMS/p-p, 20 Hz to 20 MHz:
Voltage: 3 mV/30 mV Current: 5 mA RMS
Temperature Coefficient:A/ °C after 30-minute warmup:
Voltage: ±0.009% ±0.7 mV
Current: ±0.009% ±0.8 mA
Drift (Stability): Change in output over an 8-hour interval
under constant, line, load, and ambient temperature after
30-minute warmup.
Voltage: ±0.03% ±3 mV Current: ±0.03% i 3 mA
Load Transient Recovery Time; Less than 1 ms is required
for output voltage recovery (in constant voltage operation)
to within 75 mV of the nominal output following a change
in output current from 90% to 100% or 100% to 90% of
maximum current.
Current: 2.5 mA
Voltage: 15 mV
rogramming Accuracy (25 ±5°C):
Constant Voltage: ±0,07% ±28 mV
Constant Current: ±0.085% ± 12.5 mA
Output Impedance (Typical): 0.1 mi} @ dc., less than 10
for all frequencies below 1 MHz. See graph:
IOOO ioooo
FREQUENCY (Hr)
IOOOOO IOOOOOO
1-3

Table 1-1. Specifications and Supplemental Characteristics (cont.)
Programmable Time Delay:
Range: 0-65,535 ms
Resolution: 1 ms
Accuracy: ±5% typical
Programming Response Time: Maximum time for output
voltage to change from 0 V to 60 V or 60 V to 2 V and settle
within a 60 mV band (0.1% of maximum rated output):
Band: 60 mV(* } 15 mV(«)
Up: Full Load (18 0) 200 ms 225 ms
No Load 200 ms 225 ms
Down: Full Load (18 0) 300 ms 450 ms
No Load 600 ms 750 ms
*Max, ** Typical
Typical response time for excursions other than full
scale can be calculated as follows:
Up Programming: On graph, read time for change in output
voltage.
UP PROGRAMMING TIME(mS)
Down Programming: On graph, read difference in time be¬
tween initial-output-voltage point and final-output-voitage
Front Panel Meters:
Output Voltage: Low Range: ±20.00 V
High Range: 1200.0 V
Range Switch Points: Up: above 19.99 V ±0 V
Down: below 17.5 V typical
Resolution: Low Range: 10 mV
High Range: 100 mV
Accuracy: Low Range: ±20 mV ±0.07%
High Range; ±200 mV ±0.09%
Temperature Coefficient: ±0.01%/°C
OVP Setting: (with reference to A2 terminal, not - S)
Range: 200.0 V
Resolution: 100 mV
Accuracy: 0.5% + 150 mV (at 0.0A load current)
Output Current:
Range: ± 19.99 A
Resolution: 10 mA
Accuracy: ± 17 mA ±0.1%
Temperature Coefficient: ±0.01%/°C ±0.7 mA/°C
Readback:
Output Voltage:
Range: 0-60 V
Resolution; 15 mV
Accuracy: ±0.08% ±35 mV
Temperature Coefficient: ±0,07%/°C±0.35 mV/°C
Output Current:
Range: 0-10 A
Resolution: 2,5 mA
Accuracy: ±0.125% ±8.5 mA
Temperature Coefficient: ±0.007%/°C ±0.35 mV/°C
Settling Time: < 200 ms
Overvoltage Protection: The lower of the two OVP trip
points will dominate.
Local OVP Adjustment:
Range: 1.7 V to 64.5 V
Resolution; 0.2 V
point; add settling time of 125 ms if final voltage > 2 V, or 500
ms if final voltage < 2 V, to settle within 60 V band.
Remote OVP Adjustment:
Range: 2.0 V to 64.5 V (the OVP trip point = 2 V 4
1.04 X soft voltage limit)
Resolution; 0.25 V
Accuracy: ± 0,7 V. The OVP circuit will trip when the
voltage between the 4 output and the outboard side of the
current monitoring resistor equals the set voltage. This
could be as much as 1.35 V above the voltage between the
+ S terminals.
Temperature Coefficient: 250 PPM/°C
Amplified Current Monitor: Scale Factor 0-5 V monitor
output for 0 10 A output current.
Accuracy: 0.1% 4 7 mV typical
Output Impedance: 10 kfi nominal
RFI Specifications: Meets VDE 0871/6,78 Level A

Section I
ENERAL INFORMATION
1-2 This Operating Manual contains a description of the
Model 6034A System Power Supply, including specifications,
and installation and operating instructions. The 6034A User's
Guide, HP Part Number 08034-30003, contains basic operating
instructions for the 6034A along with programming examples
for specific Hewlett-Packard computers and desktop
calculators.
1-3 SPECIFICATIONS
1-4 Instrument specifications are listed in Table 1-1. These
specifications are the performance standards or limits against
which the instrument is tested. Supplemental information is
also listed in Table 1-1, including typical, but non-warranted,
characteristics.
1-5 SAFETY CONSIDERATIONS
1-6 This product is a Safety Class 1 instrument (provided
with a protective earth terminal). The instrument and this
manual should be reviewed for safety markings and instruc¬
tions before operation. Refer to the Safety Summary page at
the beginning of this manual for a summary of general safety
information. Safety information for specific procedures is
located at appropriate places in this manual.
1-7 INSTRUMENT AND MANUAL
IDENTIFICATION
1-8 Hewlett-Packard power supplies are identified by a
two-part serial number. The first part is the serial number
prefix, a number-letter combination that denotes the date of a
significant design change and the country of manufacture.
The first two digits indicate the year (21 = 1981, 22=1982,
etc), the second two digits indicate the week, and "A"
designates the U.S.A. The second part of the serial number is
a different sequential number assigned to each power supply,
starting with 00101.
1-9 If the serial number on your instrument does not agree
with those on the title page of this manual, a yellow Manual
Changes sheet supplied with the manual defines the dif¬
ference between your instrument and the instrument de¬
scribed by this manual. The change sheet may also contain in¬
formation for correcting errors in the manual.
1-11 The Model 6034A System Power Supply is an HP-18
programmable unit that provides laboratory-grade perfor¬
mance with the high efficiency of switching regulation techni¬
ques. Autoranging allows the supply to provide at least 200
watts output power over a wide range of output voltage and
current combinations without the user having to select the
proper output range. Output voltage and current are con¬
tinuously indicated on individual meters. LED indicators show
the complete operating state of the unit. Front-panel controls
allow the user to set output voltage, current, and overvoltage
protection trip level. Overvoltage protection (OVP) protects
the user's load by quickly and automatically interrupting
energy transfer if a preset trip voltage is exceeded.
1-12 The 6G34A can be both a listener and a talker on the
HP-IB. Output voltage and current can be sent directly to the
6034A in volts and amps. Service can be requested asyn¬
chronously for each of six reasons, and the unit responds to a
serial poll by identifying the nature of any faults. Upon com¬
mand the 6034A will measure its output voltage or current and
put the value on the HP-IB.
1-13 The following parameters and features can be con¬
trolled via the HP-IB:
® Output voltage
© Output current
Output power circuits off and on (Device Clear
also turns output circuits off)
® Soft voltage limit (includes OVP trip level)
® Soft current limit
® Limit mode - CV or CC
® Time delay after output trigger or reset before
requesting service for limit mode or overrange
® Service request masks
® Trigger to implement latest mode, output
voltage and current, and OVP trip level
(Device Trigger also triggers unit)
® Trigger for output voltage or current
measurement
1-14 Output connections are made to rear-panel screw-on
terminals. Either the positive or negative output terminal may
be grounded, or the output may be floated up to ±240 Vdc
(including output voltage) from chassis ground. Output
voltage can be locally or remotely sensed, and the 6034A can
be operated in multiple-supply combinations for increased
output voltage or current capability.
1-15 The 8Q34A is considerably smaller, lighter, and more
efficient than older design supplies with similar output-power
capability. The unit is fan cooled and is packaged in a Hewlett-
Packard System II - compatible modular enclosure, which is
sturdy, attractive, and provides easy access for servicing.
1-16 OPTIONS
1-17 Options are standard factory modifications or ac¬
cessories that are delivered with the instrument. The following
options are available with the 6G34A. Note lower output power
1-1

and voltage specifications for Option 100. Option 100 is
described in Appendix A.
OPTION MO . DESCRIPTION
100 Input power: 87 to 106 Vac,
48-63 Hz, single phase.
Output: 150 W, 50 V, 10 A.
220 Input power: 191 to 233 Vac,
48-63 Hz, single phase.
240 Input power: 208 to 250 Vac,
48-63 Hz, single phase.
907 Front handle kit.
908 Rack flange kit.
909 Options 907 and 908 combined.
910 One additional operating and service
manual for each Option 910
ordered.
1-18 ACCESSORIES
1-19 The System II Cabinet accessories listed below may
be ordered with the power supply or separately from your local
Hewlett-Packard Sales and Service Office (see list of ad¬
dresses at the rear of this manual).
HP PART NO. DESCRIPTION
5061-0089 Front handle kit for 5-1/4 inch high
cabinets (will be shipped with instru¬
ment if ordered as Option 907).
1460-1345 Tilt stand (1) snaps into standard foot
supplied with instrument, must be
used in pairs.
5061-0077 Rack flange kit for 5-1/4 inch high
cabinets (will be shipped with instru¬
ment if ordered as Option 908).
5061-0083 Rack flange/front handle kit for 5-1/4
inch high cabinets (will be shipped
with instrument if ordered as Option
909).
1494-0018 Slide kit for installing 17-inch deep
cabinet in HP rack enclosure.
1424-0025 Tilt slide kit, same as 1494-0018 plus
permits tilting instrument up or down
90°.
1494-0023 Slide adapter kit, permits use of
1494-0018 kit in non-HP rack
enclosure of adequate depth.
5060-0138 HP-IB non-metric to metric connec¬
tor conversion kit.
1-20 HP-IB INTERCONNECTION CABLES
AND CONNECTORS
1-21 Cables for interconnecting HP-IB devices are
available in four different lengths. The connector block at both
ends of each HP-IB cable has a plug on one side and a
matching receptacle on the other, so that several cables may
be connected in parallel, thus simplifying system interconnec¬
tion. Lock screws provide secure mounting of each connector
block to an HP-IB instrument, or to another cable connector
block. Ail connectors supplied since 1975 use metric hardware
(colored black). Accessories table lists kit for converting one
non-metric (colored silver) cable and one or two instruments
to metric hardware. The 10631 series of cables are lighter and
more flexible than the 10833 series. The 10833 series of cables
feature improved shielding to help improve overall RFI levels in
many systems. The 10631 and 10833 series cables are com¬
pletely compatible with one another, but the 10631 series
cables will interrupt the continuity of the 10833 series
shielding.
1-22 The 10834A extender was designed to help in cases
where rear panel space results in difficult cabling situations.
The extender provides clearance by extending the first
connector block 2,3 cm away from the rear panel of the
instrument.
MODEL
10631A HP-IB Cable, 1 m (3.3 ft)
10631B HP-IB Cable, 2 m (6,6 ft)
10631C HP-IB Cable, 4 m (13,2 ft)
10631D HP-IB Cable, 0,5 m (1.6 ft)
10833A HP-IB Cable, 1 m (3.3 ft)
10833B HP-IB Cable, 2 m<6.6 ft)
10833C HP-IB Cable, 4 m (13.2 ft)
10833D HP-IB Cable, 0.5 m (1.6 ft)
10834A HP-IB Connector Extender
1-23 ORDERING ADDITIONAL MANUALS
1 24 One manual is shipped with each power supply.
Additional manuals may be purchased directly from your local
Hewlett Packard Sales office. Specify the model number, in¬
strument serial number prefix, and the manual part number pro
vided on the title page. (When ordered at the same time as the
power supply, additional manuals may be purchased by adding
Option 910 to the order and specifying the number of additional
manuals desired.)
1-25 RELATED DOCUMENTS
1-26 The following documents may be useful for design¬
ing HP-IB systems. The HP documents can be ordered from
your local HP Sales Office.
6034A User's Guide, HP Part Number 06034 90003.
Condensed Description of the Hewlett-Packard Inter¬
face Bus, HP Part Number 59401-90030, March, 1975,
18 pages.
Tutorial Description of the Hewlett-Packard Interface
Bus, HP Part Number 59300-90007, November, 1980, 92
pages.
1-2

Table 1-1. Specifications and Supplemental Characteristics (cont.)
DC Output Isolation: Either output terminal may be
floated up to ±240 Vdc (including output voltage) from
earth ground.
Temperature Rating:
Operating: 0 to +55°C Storage: -40 to +75°C
Unit is fan cooled. A thermostat turns off output power if
temperature rises above a critcal level; resets automatically.
Reverse Voltage Protection; Maximum permissible
reverse current caused by reverse voltage impressed across
output terminals.
10 A continuous
Remote Sensing: Maintains nominal voltage at load by
correcting for load-lead voltage drop of up to 0.5 V per
lead.
AC Input: Two internal switches and one internal jumper
permit operation from 120, 220, or 240 Vac (- 13%, + 6%);
48-63 Hz. (Option 100 is factory set only.)
325 W@ 200 W output
600 VA @ 200 W output
Peak Inrush Current: Typical Values
@25°C ambient: 25 A
30 seconds after turn off: 30 A
@55°C ambient: 50 A
30 seconds after turn-off: 60 A
Dimensions: See Figure 2-1.
Weight:
Net: 9.9 kg (20 lb.) Shipping: 10.4 kg (23 lb.)
1-5

Section 11
INSTALLATION
2-2 This section contains instructions for checking and
repacking the unit, bench or rack mounting, connecting the
unit to ac input power, and converting the unit from one line
voltage to another if required. Instructions for connecting load
and HP-IB cables, and for setting the HP-IB address are given
in Section III.
2-3 INITIAL INSPECTION
2-4 Before shipment, this instrument was inspected and
found to be free of mechanical and electrical defects. As soon
as the instrument is unpacked, inspect for any damage that
may have occurred in transit. Save all packing materials until
the inspection is completed. If damage is found, file claim with
carrier immediately. The Hewlett-Packard Sales and Service
office should be notified as soon as possible.
2-6 This check should confirm that there are no broken
knobs or connectors, that the cabinet and panel surfaces are
free of dents and scratches, and that the meter face and rear-
panel terminal block cover are not scratched or cracked.
2-7 Electrical Check
2-8 Section V contains complete verification procedures
for this instrument. Section HI contains an abbreviated check
which can be used quickly to place the unit into operation.
Refer to the inside front cover of the manual for Certification
and Warranty statements.
2-9 PREPARATION FOR USE
2-10 In order to be put into service, the 6034A must be
Figure 2-1. Outline Diagram.
2-1

connected to an appropriate ac input power source. Also, the
line voltage for which the unit is set and the rear-panel fuse
must be checked. Additional steps may include line voltage
conversion and rack mounting. Do not apply power to the in¬
strument before reading paragraph 2-19.
2-12 The instrument is fan cooled and must be installed
with sufficient space behind the instrument for air flow. It
should be used in an area where the ambient temperature does
not exceed +55°C.
2-13 Outline Diagram
2-14 Figure 2-1 illustrates the outline shape and dimen¬
sions of the cabinet.
2-15 Bench Operation
that configuration. If a different power cord is required, con¬
tact the nearest Hewlett-Packard Sales and Service office.
2-16 The instrument cabinet has plastic feet, which are
shaped to ensure self aligning when stacked with other
Hewlett-Packard System II cabinets.
2-18 The unit can be mounted in a standard 19-inch rack
panel or enclosure. Rack mounting accessories for this unit
are listed in the ACCESSORIES paragraph in Section I. Com¬
plete installation instructions are included with each rack
mounting kit.
2-20 This supply may be operated from a nominal 100V,
120V, 220V or 240V single-phase ac power source (48-63Hz).
The input voltage range and input current required for each of
the nominal inputs are listed below. The maximum input
power (at high fine, full load) required for any input is 325
watts. A label on the rear panel indicates the nominal line
voltage for which the instrument was set at the factory. If
necessary, the user can convert the instrument from one line
voltage option to another by following the instructions in
paragraph 2-25.
Figure 2-2. Power-Cord Plug Configurations
2-23 To protect operating personnel, the National Elec¬
trical Manufacturers Association (NEMA) recommends that
the instrument panel and cabinet be grounded. This instru¬
ment is equipped with a three-conductor power cable; the
third conductor is the ground conductor. When the cable is
plugged into an appropriate receptacle the instrument is
grounded. In no event shall this instrument be operated
without an adequate cabinet ground connection.
2-24 The offset pin on the standard power cable three-
prong connector is the ground connection. If a two-contact
receptacle is encountered, it must be replaced with a properly
grounded three-contact receptacle in accordance with the Na¬
tional Electrical Code, local codes and ordinances. The work
should be done by a qualified electrician.
NOTE
Generally, it is good practice to keep the ac input
tines separated from signal lines.
2-25 LINE VOLTAGE OPTION
Voltage Range Input Current
100 V 87-106 5.6 A rms
120 V
104-127
5.6 A rms
220V 191-233 3.0 A rms
240V 208-250
2.8 A rms
2-21 Power Cable
2-22 Model 6034A is shipped from the factory with a
power-cord plug appropriate for the user's location. Figure 2-2
illustrates the standard configuration of power-cord plugs
used by Hewlett-Packard. Below each drawing is the HP Part
Number for a replacement power cord equipped with a plug of
CAUTION
Conversion to or from 100V operation requires
replacement of jumpers and components in addi¬
tion to the fine voltage components , and is to be
done only at the factory. Failure to place these
jumpers properly will result in an output that does
not correspond to programmed values.
2-28 Line voltage conversion is accomplished by adjusting
three components; the two-section line select switch S2, line-
voltage jumper W1, and rear-panel line fuse FI. To convert the

supply from one line voltage option to another, proceed as
follows:
| WARNING |
Some components and circuits are at ac tine
voltage even with the line switch off. To avoid
electric shock hazard, disconnect line cord and load
before removing cover.
a. Remove top and bottom covers from instrument by
removing three screws (one on each side and one in center)
that secure each cover to rear panel; slide cover to rear and lift
off.
b. The line voltage select switch is located just to the right
of center of the instrument (as viewed from front), about five
inches behind front panel (see Figure 2-3). Use a small-blade
screwdriver to set the two switch sections to match the pat¬
tern silkscreened on p.c. main board as shown in Figure 2-3.
For example, to set switches for 120V operation (as
illustrated), move forward switch section so that its white slot
is toward front of instrument and move rearward switch sec¬
tion so its white slot is toward rear of instrument.
c. The line voltage jumper W1 is located about 2-1 /2 inches
in front of rear-panel terminal block (see Figure 2-3). (A
dashed line is silkscreened on A3 board from vincinity of S2 to
W1), Jumper must be soldered in place for 120V operation,
and must be removed for 220V or 240V operation.
d. Check rating of fuse FI installed in rear-panel fuseholder
and replace with correct value if necessary. Do not use slow-
blow fuses. For 120V operation, use 6A fuse, HP Part Number
2110-0056. For 220V or 240V operation, use 4A fuse, HP Part
Number 2110-0055. Fuse A1F2 (near S2) should be 1 . 25 A, HP
Part Number 2110-0094, for all input voltages. Fuse A4F1 (near
rear left comer of instrument) should be 750 mA, HP Part
Number 2100-0063 for all input voltages.
e. Replace covers and mark the supply clearly with a tag or
label indicating correct line voltage and fuse to be used.
Figure 2-3. Line Voltage Selection Components

2-27 REPACKAGING FOR
SHIPMENT
2-28 To insure safe shipment of the instrument, it is
recommended that the package designed for the instrument
be used. The original packaging materia! is reusable. If it is not
available, contact your local Hewlett-Packard Sales and Ser¬
vice office to obtain the materials. This office will also furnish
the address of the nearest service office to which the instru¬
ment can be shipped. Be sure to attach a tag to the instrument
specifying the owner, model number, full serial number, and
service required, or a brief description of the trouble.
2-4

Section III
PERATIfyO INSTRUCT
3-1 INTRODUCTION
3-2 This section describes the operating controls and in¬
dicators, turn-on checkout procedures, and operating pro¬
cedures and considerations for the Model 6034A. Local (front-
panel) and remote (via HP-IB) operation are described
separately, but the user should become familiar with both
methods of operation. Information in this section through
paragraph 3-64 and in paragraphs 3-70 through 3-73 applies to
both local and remote operation. Programming examples for
specific Hewlett Packard computers and desktop calculators
are given in 6034A Power Supply User's Guide, HP Part
Number 06034-90003. More theoretical descriptions regarding
the operational features of power supplies in general are given
in the DC Power Supply Handbook, Application Note 30B
(available at no charge from your local Hewlett-Packard Sales
Office),
pWARNlNG |
Before the instrument is turned on, all protective
earth terminals, extension cords, and devices
connected to the power supply should be con¬
nected to a protective earth ground. Any interrup¬
tion of the protective earth grounding will cause a
potential shock hazard that could result in per¬
sonal injury. Only fuses of the specified type with
the required current rating should be used. Do not
use short circuited fuseho/ders. To do so could
cause a shock hazard.
3-3 CONTROLS AND INDICATORS
3-4 The front-panel controls and indicators are shown in
Figure 3-1 and described in Table 3-1. Table 3 1 also lists the
paragraphs in which use of the controls and indicators is
described.
3-5 OUTPUT RASMGE FOR
3-6 The Model 6034A can operate as a constant voltage
(CV) or constant current (CC) source over a wide range of out¬
put voltage and current combinations. Whether the 6034A
operates as a CV or a CC source depends on the output
voltage and current settings and the value of load resistance.
3-7 Figure 3-2 shows the overall output range of the sup¬
ply, with three sample operating loci. Locus 1 is established
with a voltage setting of 20 V and a current setting of 3 A. For
any values of load resistance greater than the crossover value
of 6.7 ohms, the supply operates in constant voltage mode.
For values of load resistance less than the crossover value, the
supply operates in constant current mode. The transistion
occurs automatically; no switches need be operated or con¬
nections changed. The front-panel MODE indicators show
which mode is active. In local control, the 6034A powers on as
a voltage source, and either the CV (NORMAL) or CC (LIMIT)
indicator will be on. (The 6034A can be remotely programmed
to operate as a current source and then returned to local con¬
trol. As a current source, either the CC (NORMAL) or CV
(LIMIT) indicator will be on.) in remote control, the 6034A can
Figure 3-1. Front-Panel Controls and Indicators