Xantrex Technology XHR, XFR, XFR3 User Manual

Internal GPIB Interface for XHR/XFR Series Programmable DC Power Supplies
GPIB-XHR GPIB-XFR GPIB-XFR3
Operating Manual
Internal GPIB Interface for XHR 1000 Watt Series, XFR 1200 Watt Series and XFR 2800 Watt Series
Programmable DC Power Supplies
Limited
Warranty

What does this warranty cover and how long does it last?

This Limited Warranty is provided by Xantrex Technology, Inc. (“Xantrex”) and covers defects in workmanship and materials in your GPIB Interface Card. This warranty lasts for a Warranty Period of 5 years from the date of purchase at point of sale to you, the original end user customer.

What will Xantrex do?

Xantrex will, at its option, repair or replace the defective product free of charge, provided that you notify Xantrex of the product defect within the Warranty Period, and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this Limited Warranty.
Xantrex will, at its option, use new and/or reconditioned parts in performing warranty repair and building replacement products. Xantrex reserves the right to use parts or products of original or improved design in the repair or replacement. If Xantrex repairs or replaces a product, its warranty continues for the remaining portion of the original Warranty Period or 90 days from the date of the return shipment to the customer, whichever is greater. All replaced products and all parts removed from repaired products become the property of Xantrex.
Xantrex covers both parts and labor necessary to repair the product, and return shipment to the customer via a Xantrex-selected non-expedited surface freight within the contiguous United States and Canada. Alaska and Hawaii are excluded. Contact Xantrex Customer Service for details on freight policy for return shipments outside of the contiguous United States and Canada.

How do you get service?

If your product requires troubleshooting or warranty service, contact your merchant. If you are unable to contact your merchant, or the merchant is unable to provide service, contact Xantrex directly at:
Phone: 604 422 8595
Toll Free North America: 1 800 667 8422
Fax: 604 421 3056
Email: info@xantrex.com
ii Operating Manual for GPIB for XHR/XFR Series Power Supply
Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual. For some products, Xantrex maintains a network of regional Authorized Service Centers. Call Xantrex or check our website to see if your product can be repaired at one of these facilities.
In any warranty claim, dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex.
Proof of purchase may be in any one of the following forms:
The dated purchase receipt from the original purchase of the product at point of
sale to the end user, or
The dated dealer invoice or purchase receipt showing original equipment
manufacturer (OEM) status, or
The dated invoice or purchase receipt showing the product exchanged under
warranty

What does this warranty not cover?

This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal, installation, or troubleshooting of the customer’s electrical systems. This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to:
a. the product if it has been misused, neglected, improperly installed, physically
damaged or altered, either internally or externally, or damaged from improper use or use in an unsuitable environment;
b. the product if it has been subjected to fire, water, generalized corrosion,
biological infestations, and high input voltage from lightning strikes;
c. the product if repairs have been done to it other than by Xantrex or its authorized
service centers (hereafter “ASCs”);
d. the product if it is used as a component part of a product expressly warranted by
another manufacturer;
e. the product if its original identification (trade-mark, serial number) markings
have been defaced, altered, or removed.
Release 3.1 iii

Disclaimer Product

THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS, WHERE PERMITTED BY LAW, IN LIEU OF ALL OTHER WARRANTIES, CONDITIONS, GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND LIABILITIES, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT, HOWEVER ARISING (WHETHER BY CONTRACT, TORT, NEGLIGENCE, PRINCIPLES OF MANUFACTURER’S LIABILITY, OPERATION OF LAW, CONDUCT, STATEMENT OR OTHERWISE), INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR CONDITION OF QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY.
IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSSES, COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION ANY ECONOMIC LOSSES OF ANY KIND, ANY LOSS OR DAMAGE TO PROPERTY, ANY PERSONAL INJURY, ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE, OR THE INCORRECT INSTALLATION, INTEGRATION OR OPERATION OF THE PRODUCT.

Exclusions If this product is a consumer product, federal law does not allow an exclusion of

implied warranties. To the extent you are entitled to implied warranties under federal law, to the extent permitted by applicable law they are limited to the duration of this Limited Warranty. Some states and provinces do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages, so the above limitation(s) or exclusion(s) may not apply to you. This Limited Warranty gives you specific legal rights. You may have other rights which may vary from state to state or province to province.
iv Operating Manual for GPIB for XHR/XFR Series Power Supply
Information WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS
SPECIFICALLY AGREED TO BY IT IN WRITING, XANTREX a. MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY
OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR OTHER DOCUMENTATION PROVIDED BY IT IN CONNECTION WITH THE PRODUCT; AND
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.
WARNING:
Limitations
on Use
Please refer to your product user manual for limitations on uses of the product. Specifically, please note that this power supply is not intended for use in connection with life support systems and Xantrex makes no warranty or representation in connection with any use of the product for such purposes.
Xantrex Technology, Inc. 8999 Nelson Way Burnaby, British Columbia Canada V5A 4B5

Information

About Your
Power
Supply
Please record the following information when you first open your Power Supply package:
Model Number ______________________________________________
Serial Number ______________________________________________
Purchased From ______________________________________________
Purchase Date ______________________________________________

Release Release 3.1 (2002-06)

Copyright © 2002 Xantrex Technology Inc. All rights reserved.
Printed in Canada
Release 3.1 v
Power
!
!
Supply
Safety
WARNING—High Energy and High Voltage
Exercise caution when using and calibrating a power supply. High energy levels can be stored at the output voltage terminals on a power supply in normal operation. In addition, potentially lethal voltages exist in the power circuit and on the output and sense connectors of a power supply with a rated output greater than 40 V. Filter capacitors store potentially dangerous energy for some time after power is removed.
CAUTION
Operate the power supply in an environment free of flammable gases or fumes. To ensure that the power supply’s safety features are not compromised, use the power supply as specified in this manual and do not substitute parts or make any unauthorized modifications. Contact the service technician for service and repair help. Repairs must be made by experienced service technicians only.
Warnings,
Cautions,
and Notes
Warnings, cautions, and notes are defined and formatted in this manual as shown below.
WARNING
Describes a potential hazard which could result in injury or death, or, a procedure which, if not performed correctly, could result in injury or death.
CAUTION
Describes a procedure which, if not performed correctly, could result in damage to data, equipment, or systems.

Note

Describes additional operating information which may affect the performance of the equipment.
vi Operating Manual for GPIB for XHR/XFR Series Power Supply

About This Manual

This technical manual is for the internal GPIB interface, a microprocessor-controlled option card for XHR Series and XFR Series DC output power supplies. This manual provides you with descriptions and specifications, user options, and configuration instructions, in addition to a command set which enables you to manage the power supply from an external source. Error messages and calibration procedures are also included.
This manual is designed for the user who is familiar with basic electrical theory especially as it applies to the operation of power supplies. This implies a recognition of Constant Voltage and Constant Current operation modes and the control of input and output power, as well as the observance of safe techniques while effecting supply or pin connections and any changes in switch settings. The user should also have experience with a computer-based communications software package.
Refer to your power supply manual for installation, configuration, and operating procedures for your power supply.

Main Sections

Section 1 Features and Specifications Describes the power supply and lists
its features and specifications.
Section 2 Installation and Configuration Goes through basic setup
procedures. Describes inspection, cleaning, shipping, and storage procedures. Includes additional options for configuring the GPIB interface for operation.
Section 3 Operation Lists the complete command set, status registers, and error
codes.
Section 4 Calibration Provides detailed procedures for voltage and current
mode calibration as well as over voltage protection (OVP) calibration. Includes calibration for programming and readback accuracy.

Manual Revisions

The current release of this manual is listed below. Updates may be issued as an addendum.
Release 3.1 (2002/06)
Release 3.1 vii
About This Manual
viii Operating Manual for GPIB for XHR/XFR Series Power Supply

Contents

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Section 1.
Features and
Specifications
Section 2.
Installation
and
Configuration
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Programmable Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Readback Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Basic Setup Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
IEEE-488 Primary Address Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power On Service Request (PON SRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Remote/Local Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Remote/Local Mode Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Remote Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Local Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setting Local Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
IEEE-488 Controller Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Internal PCB Jumper Selections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
OVP Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
TTL Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connector J7 User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
J7 Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Section 3. Operation

Release 3.1 ix
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
GPIB Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Multiline Control Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Device Clear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Device Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Parallel Poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Local Lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Service Request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Serial Poll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Command Format and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Command Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Command Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Command Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Contents
Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Accumulated Status, Status, and Fault Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Section 4.
Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Voltage Mode Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Voltage Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Voltage Program Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Voltage Readback Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Current Mode Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Current Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Current Program Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Current Readback Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Over Voltage Protection (OVP) Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
x
Operating Manual for GPIB for XHR/XFR Series Power Supply
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)
Release 3.1 11
Features and Specifications

Features and Functions

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
Readback
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
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
12 Operating Manual for GPIB for XHR/XFR Series Power Supply

Specifications

Features and Specifications
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
Program Accuracy Voltage
Current
OVP
1
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
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
Readback Accuracy Voltage
Current
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.
1
1.16mV
19.6mA
30mV ±0.12% 500mA ±0.1%
1.8mV 14mA
60mV ±0.12% 460mA ±0.1%
3.08mV
8.4mA
75mV ±0.12% 250mA ±0.1%
5.4mV
5.4mA
75mV ±0.3% 200mA ±0.1%
6.2mV
4.2mA
75mV ±0.3% 150mA ±0.15%
Release 3.1 13
Features and Specifications
Specifications
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
Program Accuracy
Voltage
Current
OVP
9.2mV
2.8mA
9.2mV
1
150mV ±0.25% 120mA ±0.1% 600mV
15.4mV
1.68mA
15.4mV
150mV ±0.35% 80mA ±0.1% 800mV
23.1mV
1.12mA
23.1mV
225mV ±0.35% 80mA ±0.1%
1.5V
46.2mV
0.56mA
46.2mV
225mV ±0.35% 80mA ±0.1%
3.0V
92.4mV
0.28mA
92.4mV
250mV ±0.35% 50mA ±0.1% 6V
Readback Resolution
Voltage Current
Readback Accuracy
Voltage
Current
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.
1
9.2mV
2.8mA
150mV ±0.25% 120mA ±0.1%
15.4mV
1.68mA
150mV ±0.35% 80mA ±0.1%
23.1mV
1.12mA
225mV ±0.35% 80mA ±0.1%
46.2mV
0.56mA
225mV ±0.35% 80mA ±0.1%
92.4mV
0.28mA
250mV ±0.35% 50mA ±0.1%
14 Operating Manual for GPIB for XHR/XFR Series Power Supply
Features and Specifications
Specifications
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
Program Accuracy
Voltage
Current
OVP
1.16mV
42.0mA
1.16mV
1
10mV ±0.12% 900mA ±0.1% 80mV
1.8mV
30.8mA
1.8mV
50mV ±0.12% 750mA ±0.1% 150mV
3.08mV
18.2mA
3.08mV
75mV ±0.12% 500mA ±0.1% 200mV
5.1mV
13.0mA
5.1mV
75mV ±0.3% 425mA ±0.1% 330mV
6.2mV
9.8mA
6.2mV
75mV ±0.3% 350mA ±0.1% 400mV
Readback Resolution
Voltage Current
Readback Accuracy
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.
1
1.16mV
42.0mA
30mV ±0.12% 900mA ±0.1%
1.8mV
30.8mA
60mV ±0.12% 750mA ±0.1%
3.08mV
18.2mA
75mV ±0.12% 500mA ±0.1%
5.1mV
13.0mA
75mV ±0.3% 425mA ±0.1%
6.2mV
9.8mA
75mV ±0.3% 350mA ±0.1%
Release 3.1 15
Features and Specifications
Specifications
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
Program Accuracy
Voltage
Current
OVP
9.2mV
6.44mA
9.2mV
1
150mV ±0.25% 250mA ±0.1% 600mV
15.4mV
3.92mA
15.4mV
150mV ±0.35% 140mA ±0.15% 800mV
23.1mV
2.52mA
23.1mV
225mV ±0.35% 120mA ±0.1%
1.5V
46.2mV
1.26mA
46.2mV
225mV ±0.35% 80mA ±0.1%
3.0V
92.4mV
0.56mA
92.4mV
250mV ±0.35% 80mA ±0.1% 6V
Readback Resolution
Voltage Current
Readback Accuracy
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
1
9.2mV
6.44mA
150mV ±0.25% 250mA ±0.1%
15.4mV
3.92mA
150mV ±0.35% 140mA ±0.15%
23.1mV
2.52mA
225mV ±0.35% 120mA ±0.1%
46.2mV
1.26mA
225mV ±0.35% 80mA ±0.1%
92.4mV
0.56mA
250mV ±0.35% 80mA ±0.1%
16 Operating Manual for GPIB for XHR/XFR Series Power Supply
Features and Specifications
Specifications
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
Program Accuracy
Voltage
Current
OVP
1.16mV
42.0mA
1.16mV
1
10mV ±0.12% 900mA ±0.1% 80mV
1.8mV
30.8mA
1.8mV
50mV ±0.12% 750mA ±0.1% 150mV
3.08mV
18.2mA
3.08mV
75mV ±0.12% 500mA ±0.1% 200mV
6.2mV
9.8mA
6.2mV
75mV ±0.3% 350mA ±0.1% 400mV
9.2mV
6.44mA
9.2mV
150mV ±0.25% 250mA ±0.1% 600mV
Readback Resolution
Voltage Current
Readback Accuracy
Voltage
Current
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.
1
1.16mV
42.0mA
30mV ±0.12% 900mA ±0.1%
1.8mV
30.8mA
60mV ±0.12% 750mA ±0.1%
3.08mV
18.2mA
75mV ±0.12% 500mA ±0.1%
6.2mV
9.8mA
75mV ±0.3% 350mA ±0.1%
9.2mV
6.44mA
150mV ±0.25% 250mA ±0.1%
Release 3.1 17
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