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Operating Manual
Internal GPIB Interface
for XPD Series
Programmable DC
Power Supply
GPIB-XPD
Operating Manual for
Internal GPIB Interface
for XPD 500 Watt Series
Programmable DC
Power Supply
ii Operating Manual for GPIB for XPD Series Power Supply
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: [email protected]
Release 1.2 iii
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.
iv Operating Manual for GPIB for XPD Series Power Supply
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.
Release 1.2 v
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:
Release Release 1.2 (2002-06)
Copyright
©
2002 Xantrex Technology Inc. All rights reserved.
Printed in Canada
Model Number ______________________________________________
Serial Number ______________________________________________
Purchased From ______________________________________________
Purchase Date ______________________________________________
vi Operating Manual for GPIB for XPD Series Power Supply
Power
Supply
Safety
Warnings,
Cautions,
and Notes
Warnings, cautions, and notes are defined and formatted in this manual as shown
below.
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.
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.
Release 1.2 vii
About This Manual
This technical manual is for the internal GPIB interface, a microprocessor-controlled
option card for XPD 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 1.2 (2002/06)
About This Manual
viii Operating Manual for GPIB for XPD Series Power Supply
Release 1.2 ix
Contents
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Section 1.
Features and
Specifications
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Programmable Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Readback Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
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
IEEE-488 Controller Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Internal PCB Jumper Selections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
OVP Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TTL Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connector J21 User Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
J21 Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Section 3.
Operation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
GPIB Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Multiline Control Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Device Clear. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Device Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Parallel Poll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Service Request. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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
Accumulated Status, Status, and Fault Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Contents
x
Operating Manual for GPIB for XPD Series Power Supply
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
Release 1.2 11
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
Features and Specifications
Features and Functions
12 Operating Manual for GPIB for XPD 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
Release 1.2 13
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 XPD 500 W Series Supply with GPIB Interface Installed
Models 7.5-67 18-30 33-16 60-9 120-4.5
Program Resolution
Voltage
Current
OVP
1.2mV
5.2mA
1.2mV
4.6mV
3.6mA
4.6mV
5.1mV
2.9mA
5.1mV
9.3mV
1.3mA
9.3mV
18.6mV
0.7mA
18.6mV
Program Accuracy
1
Voltage
Current
OVP
1. Apply accuracy specifications according to the following voltage program accuracy example:
Set a model XPD 18-30 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%
250mA
±0.1%
80mV
75mV
±0.12%
140mA
±0.1%
200mV
75mV
±0.12%
115mA
±0.15%
330mV
150mV
±0.3%
80mA
±0.15%
600mV
180mV
±0.25%
80mA
±0.1%
1.2V
Readback Resolution
Voltage
Current
1.2mV
5.2mA
4.6mV
3.6mA
5.1mV
2.4mA
9.3mV
1.3mA
18.6mV
0.7mA
Readback Accuracy
1
Voltage
Current
30mV
±0.12%
250mA
±0.1%
75mV
±0.12%
140mA
±0.1%
75mV
±0.2%
115mA
±0.15%
150mV
±0.3%
80mA
±0.15%
180mV
±0.25%
80mA
±0.1%
Features and Specifications
Specifications
14 Operating Manual for GPIB for XPD Series Power Supply
Release 1.2 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 XPD Series Power Supply
Figure 2.1 Power Supply Front Panel with GPIB Interface Installed
!
CAUTION
Use proper static control techniques to avoid damage to static-sensitive components
on the printed circuit board.
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.
Remote LED (REM)
Installation and Configuration
Initial Inspection
Release 1.2 17
Figure 2.2 GPIB Interface Subplate
(Located on Power Supply Rear Panel)
!
CAUTION
Use proper static control techniques to avoid damage to static-sensitive components
on the printed circuit board
S1 Switch
1 Remote/Local Startup
2 Power On Service Reques
(Enable/Disable)
3 Not Used
4-8 Primary Address
Selection (A1-A5)
Switch Position
Reference markings
(0) (1)
Error LED (ERR)
Indicates that a programming
error has occurred. Clear with
error query command.
J21 User Signal
Connector
IEEE 488 Connector
Address LED (ADR)
Indicates that the unit is
being addressed by the
master controller.
Installation and Configuration
Initial Inspection
18 Operating Manual for GPIB for XPD Series Power Supply
Figure 2.3 GPIB Interface PCB
JUMPER SELECTION
J2 Local OVP control selection [closed] [default]. See page 23.
[open] Front Panel OVP Control.
J3 User TTL shutdown (S/D) selection [1-2] User TTL S/D line active low.
See page 27.
[2-3] [default] User TTL S/D line active high.
J20 Remote OVP Control Selection [closed] [default]. See page 23.
[open]
Note: All other jumpers are not user-selectable.
LED INDICATORS
D1 Red Diagnostic LED Bus error or soft restart on Slave circuitry.
D4 Red Diagnostic LED Soft restart on Master circuitry.
D5 Green Diagnostic LED Bus error on Master circuitry.
See page 48.
EPROMS
U18 Slave EPROM See revision number stamped on EPROM.
U1 Master EPROM See revision number stamped on EPROM.
/
