Ametek Sorensen GPIB-XHR User manual

TM-GPRF-01XN Rev B www.programmablepower.com
Internal GPIB Interface for
XHR/XFR Series
Programmable DC Power Supplies
Operation Manual
GPIB-XHR
GPIB -XFR
GPIB -XFR3

About AMETEK
AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design
and manufacture of precision, programmable power supplies for R&D, test and measurement,
process control, power bus simulation and power conditioning applications across diverse
industrial segments. From bench top supplies to rack-mounted industrial power subsystems,
AMETEK Programmable Power is the proud manufacturer of Elgar, Sorensen, California
Instruments and Power Ten brand power supplies.
AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical
devices with annualized sales of $2.5 billion. The Company has over 11,000 colleagues working
at more than 80 manufacturing facilities and more than 80 sales and service centers in the United
States and around the world.
Trademarks
AMETEK is a registered trademark of AMETEK, Inc.
Other trademarks, registered trademarks, and product names are the property of their respective
owners and are used herein for identification purposes only.
Notice of Copyright
Internal GPIB Interface for XHR/XFR Series Programmable DC Power Supplies Operation Manual
© 2007 AMETEK Programmable Power, Inc. All rights reserved.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC.
(“AMETEK”):
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY
TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER
DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR
EXPENSES, WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL,
WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH
INFORMATION WILL BE ENTIRELY AT THE USER’S RISK, AND
(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH,
ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED. APPROVED AMETEK CONTENT
IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION, WHICH IS POSTED AT
WWW.PROGRAMMABLEPOWER.COM.
Date and Revision
February 2009 Revision B
Part Number
TM-GPRF-01XN
Contact Information
Telephone: [phone] (toll free in North America)
858 450 0085 (direct)
Fax: [phone]
Email: [e-mail]
[email protected]
Web: www.programmablepower.com
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Important Safety Instructions
Before applying power to the system, verify that your product is configured properly for your
particular application.
WARNIN
G
Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.
WARNIN
G
The equipment used contains ESD sensitive parts. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.
Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform
installation and servicing.
Ensure that the AC power line ground is connected properly to the Power Rack input connector or
chassis. Similarly, other power ground lines including those to application and maintenance
equipment must be grounded properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any
cable.
In normal operation, the operator does not have access to hazardous voltages within the chassis.
However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO
HUMAN SAFETY may be normally generated on the output terminals. The customer/user must
ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated.
Guard against risks of electrical shock during open cover checks by not touching any portion of the
electrical circuits. Even when power is off, capacitors may retain an electrical charge. Use safety
glasses during open cover checks to avoid personal injury by any sudden component failure.
Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary
sales organizations can accept any responsibility for personnel, material or inconsequential injury,
loss or damage that results from improper use of the equipment and accessories.
SAFETY SYMBOLS
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Product Family: Internal GPIB Interface for XHR/XFR Series
Warranty Period: Five Years
WARRANTY TERMS
AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the
Product stated above, and if the Buyer discovers and notifies AMETEK in writing of any defect in
material or workmanship within the applicable warranty period stated above, then AMETEK may,
at its option: repair or replace the Product; or issue a credit note for the defective Product; or
provide the Buyer with replacement parts for the Product.
The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in
accordance with the return procedure specified below. AMETEK will, at its expense, deliver the
repaired or replaced Product or parts to the Buyer. Any warranty of AMETEK will not apply if the
Buyer is in default under the Purchase Order Agreement or where the Product or any part
thereof:
• is damaged by misuse, accident, negligence or failure to maintain the same as
specified or required by AMETEK;
• is damaged by modifications, alterations or attachments thereto which are not
authorized by AMETEK;
• is installed or operated contrary to the instructions of AMETEK;
• is opened, modified or disassembled in any way without AMETEK’s consent; or
• is used in combination with items, articles or materials not authorized by AMETEK.
The Buyer may not assert any claim that the Products are not in conformity with any warranty
until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement.
PRODUCT RETURN PROCEDURE
1. Request a Return Material Authorization (RMA) number from the repair facility (must be
done in the country in which it was purchased):
• In the USA, contact the AMETEK Repair Department prior to the return of the
product to AMETEK for repair:
Telephone: [phone], ext. 2295 or ext. 2463 (toll free North America)
858-450-0085, ext. 2295 or ext. 2463 (direct)
• Outside the United States, contact the nearest Authorized Service Center
(ASC). A full listing can be found either through your local distributor or our
website, www.programmablepower.com, by clicking Support and going to the
Service Centers tab.
2. When requesting an RMA, have the following information ready:
• Model number
• Serial number
• Description of the problem
NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.
NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to
an evaluation fee and applicable freight charges.
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vii
Contents
Section 1.
Features and
Specifications
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Programmable Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Readback Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Section 2.
Installation
and
Configuration
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Basic Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
IEEE-488 Primary Address Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Power On Service Request (PON SRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Remote/Local Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Remote/Local Mode Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Remote Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Local Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Setting Local Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
IEEE-488 Controller Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Internal PCB Jumper Selections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
OVP Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
TTL Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Connector J7 User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
J7 Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Section 3.
Operation Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
GPIB Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Multiline Control Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Device Clear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Device Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Parallel Poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Local Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Service Request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Serial Poll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Command Syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Command Format and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Command Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Command Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Command Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Contents
viii Operating Manual for GPIB for XHR/XFR Series Power Supply
Accumulated Status, Status, and Fault Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Section 4.
Calibration Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Voltage Mode Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Voltage Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Voltage Program Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Voltage Readback Calibration Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Current Mode Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Current Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Current Program Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Current Readback Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Over Voltage Protection (OVP) Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

7
Section 1. Features and Specifications
Description
The internal GPIB interface card allows you to operate your power supply from a
computer controller via the IEEE-488 communications bus. See Figure 1.1, “Sample
Configuration using GPIB Interface”.
The GPIB interface allows complete remote programming of your power supply,
including status reporting, settings query, and interrupt generation with
user-designated fault conditions. Both the voltage and current output are precisely
programmed directly in volts and amps with 16-bit resolution. Additionally, the
built-in DVM and current shunt measure the actual power supply output and provide
you with 16-bit readback. The programming command set is easy-to-use and
includes software calibration commands. The interface card comes standard with
several protection features such as programmable over voltage protection, foldback,
load isolation signal, and soft limits.
Figure 1.1 Sample Configuration using GPIB Interface
(1200 Watt DC Power Supplies Shown)

Features and Specifications
Features and Functions
8 Operating Manual for GPIB for XHR/XFR Series Power Supply
Features and Functions
Features •16-bit programming and readback of voltage and current
•Programmable soft limits for voltage and current
•Programmable over voltage protection with reset
•Easy-to-use, self-documenting command set
•Isolated user-programmable signals such as fault, polarity, isolation, and
auxiliary signals
•LED status signals: error, addressed, service request, over voltage protection,
and remote operation
•Foldback in CV or CC mode with reset
•Local Lockout capability
•Software calibration
Programmable
Functions
•Output voltage and current
•Soft limits for voltage and current
•Overvoltage protection
•Output enable/disable
•Maskable fault interrupt
•Hold and trigger
•User-programmable output relay signals
Readback
Functions •Actual measured voltage and current
•Voltage and current settings
•Soft voltage and current limits
•Overvoltage protection setting
•Present and accumulated power supply status
•Programming error codes
•Fault codes
•Power supply model and version identification
•Firmware revision levels

Features and Specifications
Specifications
9
Specifications
The specifications in this section are warranted at 25°C ±5°C unless otherwise
specified. All specifications are subject to change without notice.
Table 1.1 Specifications for XFR 1200 W Series Supply with GPIB Interface Installed (7.5 V to 40 V)
Models 7.5-140 12-100 20-60 35-35 40-30
Program Resolution
Voltage
Current
OVP
1.16mV
19.6mA
1.16mV
1.8mV
14mA
1.8mV
3.08mV
8.4mA
3.08mV
5.4mV
5.4mA
5.4mV
6.2mV
4.2mA
6.2mV
Program Accuracy1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-60 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 75mV ± 0.12% of the set voltage of 10 volts.
10mV
±0.12%
500mA
±0.1%
80mV
50mV
±0.12%
460mA
±0.1%
150mV
75mV
±0.12%
250mA
±0.1%
200mV
75mV
±0.3%
200mA
±0.1%
350mV
75mV
±0.3%
150mA
±0.15%
400mV
Readback Resolution
Voltage
Current 1.16mV 19.6mA 1.8mV 14mA 3.08mV 8.4mA 5.4mV 5.4mA 6.2mV 4.2mA
Readback Accuracy1
Voltage
Current
30mV
±0.12%
500mA
±0.1%
60mV
±0.12%
460mA
±0.1%
75mV
±0.12%
250mA
±0.1%
75mV
±0.3%
200mA
±0.1%
75mV
±0.3%
150mA
±0.15%

Features and Specifications
Specifications
10 Operating Manual for GPIB for XHR/XFR Series Power Supply
Table 1.2 Specifications for XFR 1200 W Series Supply with GPIB Interface Installed (60 V to 600 V)
Models 60-20 100-12 150-8 300-4 600-2
Program Resolution
Voltage
Current
OVP
9.2mV
2.8mA
9.2mV
15.4mV
1.68mA
15.4mV
23.1mV
1.12mA
23.1mV
46.2mV
0.56mA
46.2mV
92.4mV
0.28mA
92.4mV
Program Accuracy1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-60 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 75mV ± 0.12% of the set voltage of 10 volts.
150mV
±0.25%
120mA
±0.1%
600mV
150mV
±0.35%
80mA
±0.1%
800mV
225mV
±0.35%
80mA
±0.1%
1.5V
225mV
±0.35%
80mA
±0.1%
3.0V
250mV
±0.35%
50mA
±0.1%
6V
Readback Resolution
Voltage
Current 9.2mV 2.8mA 15.4mV 1.68mA 23.1mV 1.12mA 46.2mV 0.56mA 92.4mV 0.28mA
Readback Accuracy1
Voltage
Current
150mV
±0.25%
120mA
±0.1%
150mV
±0.35%
80mA
±0.1%
225mV
±0.35%
80mA
±0.1%
225mV
±0.35%
80mA
±0.1%
250mV
±0.35%
50mA
±0.1%

Features and Specifications
Specifications
11
Table 1.3 Specifications for XFR 2800 W Series Supply with GPIB Interface Installed (7.5 V to 40 V)
Models 7.5-300 12-220 20-130 33-85 40-70
Program Resolution
Voltage
Current
OVP
1.16mV
42.0mA
1.16mV
1.8mV
30.8mA
1.8mV
3.08mV
18.2mA
3.08mV
5.1mV
13.0mA
5.1mV
6.2mV
9.8mA
6.2mV
Program Accuracy1
Voltage
Current
OVP
10mV
±0.12%
900mA
±0.1%
80mV
50mV
±0.12%
750mA
±0.1%
150mV
75mV
±0.12%
500mA
±0.1%
200mV
75mV
±0.3%
425mA
±0.1%
330mV
75mV
±0.3%
350mA
±0.1%
400mV
Readback Resolution
Voltage
Current 1.16mV 42.0mA 1.8mV 30.8mA 3.08mV 18.2mA 5.1mV 13.0mA 6.2mV 9.8mA
Readback Accuracy1
Voltage
Current
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-130 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 75mV ± 0.12% of the set voltage of 10 volts.
30mV
±0.12%
900mA
±0.1%
60mV
±0.12%
750mA
±0.1%
75mV
±0.12%
500mA
±0.1%
75mV
±0.3%
425mA
±0.1%
75mV
±0.3%
350mA
±0.1%

Features and Specifications
Specifications
12 Operating Manual for GPIB for XHR/XFR Series Power Supply
Table 1.4 Specifications for XFR 2800 W Series Supply with GPIB Interface Installed (60 V to 600 V)
Models 60-46 100-28 150-18 300-9 600-4
Program Resolution
Voltage
Current
OVP
9.2mV
6.44mA
9.2mV
15.4mV
3.92mA
15.4mV
23.1mV
2.52mA
23.1mV
46.2mV
1.26mA
46.2mV
92.4mV
0.56mA
92.4mV
Program Accuracy1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-130 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 75mV ± 0.12% of the set voltage of 10 volts
150mV
±0.25%
250mA
±0.1%
600mV
150mV
±0.35%
140mA
±0.15%
800mV
225mV
±0.35%
120mA
±0.1%
1.5V
225mV
±0.35%
80mA
±0.1%
3.0V
250mV
±0.35%
80mA
±0.1%
6V
Readback Resolution
Voltage
Current 9.2mV 6.44mA 15.4mV 3.92mA 23.1mV 2.52mA 46.2mV 1.26mA 92.4mV 0.56mA
Readback Accuracy1
Voltage
Current
150mV
±0.25%
250mA
±0.1%
150mV
±0.35%
140mA
±0.15%
225mV
±0.35%
120mA
±0.1%
225mV
±0.35%
80mA
±0.1%
250mV
±0.35%
80mA
±0.1%

Features and Specifications
Specifications
13
Table 1.5 Specifications for XHR 1000 W Series Supply with GPIB Interface Installed (7.5 V to 60 V)
Models 7.5-130 20-50 33-33 40-25 60-18
Program Resolution
Voltage
Current
OVP
1.16mV
42.0mA
1.16mV
1.8mV
30.8mA
1.8mV
3.08mV
18.2mA
3.08mV
6.2mV
9.8mA
6.2mV
9.2mV
6.44mA
9.2mV
Program Accuracy1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-50 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 50mV ± 0.12% of the set voltage of 10 volts.
10mV
±0.12%
900mA
±0.1%
80mV
50mV
±0.12%
750mA
±0.1%
150mV
75mV
±0.12%
500mA
±0.1%
200mV
75mV
±0.3%
350mA
±0.1%
400mV
150mV
±0.25%
250mA
±0.1%
600mV
Readback Resolution
Voltage
Current 1.16mV 42.0mA 1.8mV 30.8mA 3.08mV 18.2mA 6.2mV 9.8mA 9.2mV 6.44mA
Readback Accuracy1
Voltage
Current
30mV
±0.12%
900mA
±0.1%
60mV
±0.12%
750mA
±0.1%
75mV
±0.12%
500mA
±0.1%
75mV
±0.3%
350mA
±0.1%
150mV
±0.25%
250mA
±0.1%

Features and Specifications
Specifications
14 Operating Manual for GPIB for XHR/XFR Series Power Supply
Table 1.6 Specifications for XHR 1000 W Series Supply with GPIB Interface Installed (100 V to 600 V)
Models 100-10 150-7 300-3.5 600-1.7
Program Resolution
Voltage
Current
OVP
15.4mV
3.92mA
15.4mV
23.1mV
2.52mA
23.1mV
46.2mV
1.26mA
46.2mV
92.4mV
0.56mA
92.4mV
Program Accuracy1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model 20-50 power supply to 10 volts.
The expected result will be within the range of 10 volts ± 50mV ± 0.12% of the set voltage of 10 volts.
150mV
±0.35%
140mA
±0.15%
800mV
225mV
±0.35%
120mA
±0.1%
1.5V
225mV
±0.35%
80mA
±0.1%
3.0V
250mV
±0.35%
80mA
±0.1%
6V
Readback Resolution
Voltage
Current 15.4mV 3.92mA 23.1mV 2.52mA 46.2mV 1.26mA 92.4mV 0.56mA
Readback Accuracy1
Voltage
Current
150mV
±0.35%
140mA
±0.15%
225mV
±0.35%
120mA
±0.1%
225mV
±0.35%
80mA
±0.1%
250mV
±0.35%
80mA
±0.1%

15
Section 2. Installation and Configuration
Introduction
To use this product, you must have the following equipment:
•a compatible model of DC output power supply
•IEEE-488 connector and cable
•computer with an IEEE-488 interface
•Computer-based communications software package
We usually install the GPIB interface in a power supply at the factory. Your local
distributor or service center can also install the interface, especially for use in a
previously-purchased supply already on site. You must then configure the GPIB
Interface-enhanced supply for your system using the “Basic Setup Procedure” on
page 19. Refer also to Figure 2.1, pg. 16, Figure 2.2, pg. 17 and Figure 2.3, pg. 18
for drawings of the front panel, the interface subplate, and the GPIB interface printed
circuit board (PCB).
Initial Inspection
On first receiving your unit, perform a quick physical check.
•Ensure each package contains a power supply with its GPIB interface board
installed, and manuals for the power supply and the GPIB interface. Any
additional parts shipped with the power supply will be identified in the supply's
documentation.
•Inspect the unit for any signs of physical damage such as scratches, cracks, or
broken switches, connectors, or displays.
•Check the printed circuit board and components if you suspect internal damage.
If the unit is damaged, save all packing materials and notify the carrier immediately.
For additional information, please see the section titled, “Returning Power Supplies
to the Manufacturer” in the manual shipped with your complete unit.
!
CAUTION
If you remove the unit's cover, use proper static control techniques to avoid damage
to static-sensitive components on the printed circuit board.

Installation and Configuration
Initial Inspection
16 Operating Manual for GPIB for XHR/XFR Series Power Supply
Figure 2.1Power Supply Front Panel with GPIB Interface Installed (1200 Watt Power Supply Shown)
!
CAUTION
Use proper static control techniques to avoid damage to static-sensitive components
on the printed circuit board.
Address LED (ADR)
Indicates that the master controller is addressingthe unit.
Service Request LED (SRQ)
Comes on at power up if the PON SRQ switch is set to
on. You can enable the SRQ LED during normal
operation with the SRQ command.
Error LED (ERR)
Indicates when a programming error has occurred. You
can clear the ERR LED with an error query command.
Fault LED (FLT)
Indicates that a fault has occurred. The fault bit
mustbeunmasked.Refer tothestatusregisterin
Table 3.10, on page 46. Momentarily lights if
PON SRQ is set to on.
Polarity LED (POL)
Indicates that the polarity user line has been
activated.See “Connector J7 User Signals”
on page 26.
Local Switch (LOCAL)Remote LED (REM)
Remote Programming LEDs: