Pickering PXi 41-740 User manual

Page (1)
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering
Issue 5.3 June 2017
User Manual
PXI Programmable
Power Supply Module
(Model No. 41-740)
pickeringtest.com pickering

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© COPYRIGHT (2017) PICKERING INTERFACES. ALL RIGHTS RESERVED.
No part of this publication may be reproduced, transmitted, transcribed, translated or stored in any form, or by
any means without the written permission of Pickering Interfaces.
Technical details contained within this publication are subject to change without notice.
ISO 9001
Reg No. FM38792

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PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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REED RELAY MODULE 40-110/115/120/125
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TECHNICAL SUPPORT
For Technical Support please contact Pickering Interfaces either by phone, the website or via e-mail.
WARRANTY
All products manufactured by Pickering Interfaces are warranted against defective materials and workmanship for a period of
three years, excluding programmable power supplies, from the date of delivery to the original purchaser. Any product found to be
defective within this period will, at the discretion of Pickering Interfaces be repaired or replaced.
Products serviced and repaired outside of the warranty period are warranted for ninety days.
Extended warranty and service are available. Please contact Pickering Interfaces by phone, the website or via e-mail.
ENVIRONMENTAL POLICY
Pickering Interfaces operates under an environmental management system similar to ISO 14001.
Pickering Interfaces strives to full all relevant environmental laws and regulations and reduce wastes and releases to the
environment. Pickering Interfaces aims to design and operate products in a way that protects the environment and the health and
safety of its employees, customers and the public. Pickering Interfaces endeavours to develop and manufacture products that can
be produced, distributed, used and recycled, or disposed of, in a safe and environmentally friendly manner.
Worldwide Technical Support and Product Information
pickeringtest.com
Germany
Tel: [phone]
E-mail: [email protected]
Sweden
Tel: [phone]
E-mail: [email protected]
USA
Tel: (West) [phone]
Tel: (East) [phone]
E-mail: [email protected]
Czech Republic
Tel: [phone]
E-mail: [email protected]
France
Tel [phone]
E-mail [email protected]
Pickering Interfaces Headquarters
Stephenson Road Clacton-on-Sea CO15 4NL United Kingdom
Tel: [phone]
E-Mail: [email protected]
China
Tel: [phone]
E-mail: [email protected]

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MEANING / DESCRIPTION SYMBOL
PROTECTIVE EARTH (GROUND)
To identify any terminal which is intended for connection to an external conductor for
protection against electric shock in case of a fault, or the terminal of a protective earth
(ground) electrode.
DANGEROUS VOLTAGE
To indicate hazards arising from dangerous voltages.
WARNING / CAUTION
An appropriate safety instruction should be followed or caution to a potential hazard
exists.
Refer to the relevant instructions detailed within the product manual.
HEAVY
If this product is heavy reference should be made to the safety instructions for
provisions of lifting and moving.
STATIC SENSITIVE
To indicate that static sensitive devices are present and handling precautions should
be followed.
!
kg
SAFETY SYMBOLS
PRODUCT SAFETY
The following safety symbols may be used on the product and throughout the product documentation.

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PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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Copyright Statement ...................................................................II
Technical Support and Warranty................................................III
Product Safety .............................................................................IV
Contents (this page)....................................................................V
Warnings and Cautions ..............................................................VII
Section 1
Technical Specication...............................................................1.1
Section 2
Technical Description .................................................................2.1
Functional Description..........................................................2.1
Section 3
Installation....................................................................................3.1
Pre Operation Checks...........................................................3.1
Software Installation .............................................................3.2
Hardware Installation ............................................................3.3
Section 4
Programming Guide....................................................................4.1
Software .................................................................................4.1
Operating Procedure.............................................................4.4
Operation Modes ...................................................................4.6
Using the Soft Front Panel ...................................................4.8
Messages ...............................................................................4.29
DLL Calls and Example Programs (See page VIII) .............4.32
Error Codes......................................................................4.58
Example Programs..........................................................4.62
C Sample Program ......................................................4.62
Visual Basic Sample Program....................................4.65
LabVIEW Sample Program .........................................4.66
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting .........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Calibration..............................................................................7.1
Verication .............................................................................7.2
CONTENTS

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WARNINGS AND CAUTIONS
WARNING - HAZARDOUS ENVIRONMENTS SYMBOL
This product is not specically designed for use in hazardous environments, for example in explosive
atmospheres. If the product is to be used in hazardous environments we recommend that the user
ensures suitable protective measures are taken.
!
WARNING - DANGER OF ELECTRIC SHOCK SYMBOL
This module may contain hazardous voltages. Before removing the module from the rack remove all
supplies and disconnect user I/O signals.
Unused slots in the PXI/LXI chassis are populated with blanking plates to prevent access to user
I/O signals that may be present. Blanking panels are available to order from Pickering in a variety
of slot widths. If the product is not used in this manner for example by using an extender card then
additional care must be taken to avoid contact with exposed signals.
CAUTION - HANDLING OF ELECTROSTATIC-SENSITIVE DEVICES SYMBOL
Certain semiconductor devices used in this equipment are liable to damage due to static voltage.
Observe the following precautions when handling these devices in their unterminated state, or
sub-assemblies containing these devices:
1. Persons removing sub-assemblies from equipment using these devices must be earthed by a
wrist strap and a resistor at the point provided on the equipment.
2. Soldering irons used during the repair operations must be low voltage types with earthed tips and
isolated from the mains voltage by a double insulated transformer.
3. Outer clothing worn must be unable to generate static charges.
4. Printed Circuit Boards (PCBs) tted with these devices must be stored and transported in
anti-static bags.
CAUTION - PRODUCT DOCUMENTATION SYMBOL
Suitably qualied & trained users should ensure that the accompanying documentation is fully read
and understood before attempting to install or operate the product.
!
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
All cleaning and servicing requires the equipment to be isolated and disconnected from the power source and user I/O
signals (refer to the Maintenance Section).
• Appropriate manual handling procedures should be followed as dictated by the weight of the individual module or
the combined weight of the modules & chassis.
• Should a fault occur with the module or chassis, immediately isolate and disconnect the incoming power to the
chassis and the user I/O signals.
• Ensure the equipment is installed, operated and maintained by trained and authorised personnel.
• For suitably equipped products in the event of an emergency press the red “emergency stop” button situated on
the front of the unit.

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Page 1.1
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
pickeringtest.com
Pickering Interfaces’ 41-740 programmable power
supply is designed specifically for test applications that
demand precision output voltage/current and tightly
coupled measurement capabilities.
The versatile design of the 41-740 makes it ideal for
a broad range of testing applications in markets as
diverse as communications, aerospace, and automotive
manufacturing.
Power Levels
41-740
Programmable DC Power Supply
●Dual Isolated Outputs; 0-48VDC/ 2A / 60W
●Current Capability 2A to 30V, 1.25A at 48V
●Programmable Current Limit
●Includes Over Voltage, Over Current and Short
Circuit Protection
●On-Board Isolation and Remote Sense Relays
●16 Bit Read Back of Output Voltage and Current
●Outputs May Be Connected in Parallel or Series
●DLLs & LabVIEW™ Application Software
Input Power
To avoid excess power draw from the PXI backplane,
the 41-740-001 draws input power (+56VDC) via front
panel connections. This approach not only minimizes
power required from the backplane but also maintains
complete isolation between backplane logic and power
conversion circuitry thereby increasing noise immunity.
Pickering Interfaces includes an AC-DC adapter with the
41-740-001 which allows the instrument to be operate
from 90–260VAC mains where +56VDC is not readily
available.
ISSUE 6.2 MAY 2017
Pickering’s Range of PXI Power Supplies
Model
No. Configuration Channels Input Output Voltage
Max
Current
41-735 Programmable 2 Backplane
or External 0 to +10V 1A
41-736 Programmable 2 Backplane
or External 0 to -10V 1A
41-740 Programmable 2 56VDC 0 to 48V 2A to 30V,
1.25A at 48V
41-743 Programmable 1 Backplane 0 to 48V 2A to 20V,
0.8A at 48V
41-752 Battery
Simulator 6 Backplane 0 to 7V 300mA Source, 100mA Sink
41-753 Battery
Simulator 1 Backplane 0 to 6V 2.8A Source, 0.5A Sink
The 41-740 programmable power supply
provides two independent and isolated
60W(MAX) supplies, each channel is
programmable from 0-48VDC to a maximum
of 2.0 Amps. The 41-740 includes a
programmable current limit to protect critical
UUTs from excessive current, the output will
automatically switch into constant current
mode when limit is reached. For greater
power or voltage applications, channels can
be connected in series or parallel.
Measurement function
In operation, the capabilities include
quickly setting I/V and then measuring I/V
automatically without processor intervention.
The 41-740 has a hardware built in sequence
list that can execute commands and store
data in a FIFO without processor action.
With the tight integration of a Pickering
Interfaces 41-740, you’ll get high speeds for
high throughput as well as high measurement
accuracy and repeatability for yield integrity.

Page 1.2 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 1 - TECHNICAL SPECIFICATION
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Product Order Codes
Dual 0-48VDC Programmable Power
Supply 56VDC input (including 41-740-901
AC-DC Adapter).
41-740-001
Spare AC-DC Adapter 90-260VAC input,
56VDC output (for use with 41-740-001).
41-740-901
41-740-901 AC-DC Adapter
(included with the 41-740-001 Power Supply Module)
Voltage
Current
2A
1.25A
30V 48V
41-740 Safe Operational Area
Power Input: +56VDC or 90 to 260VAC, 47 to
63Hz via supplied AC to 56VDC
converter
Output Channels: 2
Output Voltage Range: 0V to 48V
Output Voltage Accuracy: 0.5% of programmed value
±50mV
Voltage Setting Resolution: 12-Bits
Line Regulation: 0.1%
Load Regulation: 0.1%
(10 to 90% load change)
Output Current Range: 2A to 30V, 1.25A at 48V.
Current Limit Accuracy: 0.5% ±50mA
Read back Voltage: ±0.2% of Reading +60mV
Read back Current: ±0.5% of Reading +10mA
Rise Time (typical): 14ms (full load)
Efficiency 84% typical
Isolation: 500V (channel to channel)
500V (channel to chassis)
Measurement Function: Maximum sampling rate:
5kS/s of each channel
Input Impedance: 5kΩ
Trigger sources:
Software, external
Buffer size:
2K samples per channel
Data transfers: Polling
Sequence Function: Trigger sources:
Software, external
Input Impedance - 5kΩ
Buffer size:
256 command words per channel
PCI Interface: 32 bit, 33MHz
Width & Dimensions: 41-740-001: 1-slot 3U PXI (CPCI)
41-740-901 adapter:
230mm x 160mm x 70mm
Connectors: Power supply input (41-740-001):
4-pin plug-in screw terminal block
Power supply outputs & sense:
8-pin plug-in screw terminal block
Trigger Input:
SMB coaxial connector.
PXI bus:
32 bit P1/J1 backplane connector

Page 1.3
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering SECTION 1 - TECHNICAL SPECIFICATION
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PXI & CompactPCI Compliance
The module is compliant with the PXI Specification 2.2. Local
Bus. Uses 33MHz 32-bit backplane interface.
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0°C to +55°C
Up to 90% non-condensing
5000m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20°C to +75°C
Up to 90% non-condensing
15000m
PXI Chassis Compatibility
Compatible with all chassis conforming to the 3U PXI and
3U cPCI specification. Compatible with Legacy and Hybrid
peripheral slots in a 3U PXI Express chassis.
Not compatible with Pickering Interfaces LXI Modular Chassis.
Latest Details
Please refer to our Web Site for Latest Product Details.
www.pickeringtest.com
pickeringtest.com
Programming
Pickering provide kernel, IVI and VISA (NI & Keysight) drivers
which are compatible with all Microsoft supported versions of
Windows and popular older versions. For a list of all supporting
operating systems, please see: www.pickeringtest.com/os
The VISA driver is also compatible with Real-Time Operating
Systems such as LabVIEW RT. For other RTOS support
contact Pickering. These drivers may be used with a variety of
programming environments and applications including:
Pickering Interfaces Switch Path Manager
MTQ Testsolutions Tecap Test & Measurement Suite
National Instruments products (LabVIEW, LabWindows/
CVI, Switch Executive, MAX, TestStand, VeriStand, etc.)
Microsoft Visual Studio products (Visual Basic, Visual C+)
Keysight VEE Mathworks Matlab Marvin ATEasy
Drivers for popular Linux distributions are available, other
environments are also supported, please contact Pickering
with specific enquiries.
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0°C to +55°C
Up to 90% non-condensing
5000m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20°C to +75°C
Up to 90% non-condensing
15000m
PXI & LXI Chassis Compatibility
Compatible with all chassis conforming to the 3U PXI and
3U cPCI specification. Compatible with Legacy and Hybrid
peripheral slots in a 3U PXI Express chassis.
Compatible with Pickering Interfaces LXI Modular Chassis.
For information on driving your switching solution in an LXI
environment refer to the LXI Product Guide.
PXI & CompactPCI Compliance
The module is compliant with the PXI Specification 2.2. Local
Bus, Trigger Bus and Star Trigger are not implemented.
Uses a 33MHz 32-bit backplane interface.
Safety & CE Compliance
All modules are fully CE compliant and meet applicable EU
directives: Low-voltage safety EN61010-1:2001,
EMC Immunity EN61000-6-1:2001, Emissions EN55011:1998.
Please refer to the 200 page
Pickering Interfaces “Connection
Solutions” catalog for the full list
of connector/cabling options,
including drawings, photos and
specifications. Available in either
print or as a download.
Alternatively our web site has
dynamically linked connector/
cabling options, including pricing,
for all Pickering PXI modules.
Ever wondered what PXI is all
about?
Pickering Interfaces’ “PXImate”
explains the basics of PXI
and provides useful data for
engineers working on switch
based test systems.
The PXImate is available free
on request from the Pickering
website.
“The Big PXI Catalog” gives
full details of Pickering’s entire
range of PXI switch modules,
instrument modules and
support products.
At over 500 pages, the Big
PXI Catalog is available on
request or can be downloaded
from the Pickering website.
The “PXI
Module Map”
- a simple fold-
out selection
guide to all
Pickering’s
1000+ PXI
Modules.
The “Cables &
Connectors
Map” - outlines
the cable and
connector
options
available
for all PXI
Modules.
Latest Details
Please refer to our Web Site for Latest Product Details.
www.pickeringtest.com
Programming
Pickering provide kernel, IVI and VISA (NI & Keysight) drivers
which are compatible with all Microsoft supported versions of
Windows and popular older versions. For a list of all supporting
operating systems, please see: www.pickeringtest.com/os
The VISA driver is also compatible with Real-Time Operating
Systems such as LabVIEW RT. For other RTOS support
contact Pickering. These drivers may be used with a variety of
programming environments and applications including:
Pickering Interfaces Switch Path Manager
MTQ Testsolutions Tecap Test & Measurement Suite
National Instruments products (LabVIEW, LabWindows/
CVI, Switch Executive, MAX, TestStand, VeriStand, etc.)
Microsoft Visual Studio products (Visual Basic, Visual C+)
Keysight VEE Mathworks Matlab Marvin ATEasy
Drivers for popular Linux distributions are available, other
environments are also supported, please contact Pickering
with specific enquiries.
Safety & CE Compliance
All modules are fully CE compliant and meet applicable EU
directives: Low-voltage safety EN61010-1:2001,
EMC Immunity EN61000-6-1:2001, Emissions EN55011:1998.

Page 1.4 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 1 - TECHNICAL SPECIFICATION
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Page 2.1
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
A functional block diagram is provided in Figure 2.1. The Module’s control logic is powered by a +5V input via
Compact PCI connectors J101 and J102. Clamp connectors on the Front Panel provide the Power Supply Input
and Output Power. PCI bridge U201 provides the interface between the backplane and the modules control logic to
output the required voltage/current level.
Description of Each Function:
(1) PXI Backplane: It is used by the system controller running the control software to send commands to the 41-740
and receive data for display on the host computer’s screen.
(2) Digital circuit: Its main function is to control the output of V and I. It also uses the internal monitor circuit to read
and monitor the actual output values of V and I.
(3) Analog circuit (power stage): The core uses a switching regulator with a correcting feedback circuit to control
the actual output of V and I (see Figure 2.2).
(4) External DC source +56Vdc: Its main function is to provide the Power Supply card with a stable DC voltage input
source. This can be the 41-740-901 AC to +56V DC power converter which is supplied with the module.
PXI
Back-
Plane
Analog
Circuit
(power
stage) Vout
External
DC Source
+56V DC
Digital
Circuit
Switching Regulator
Feedback Circuit OVP Circuit
Vout
Figure 2.1 - PXI Programmable Power Supply 41-740: Functional Block Diagram
Figure 2.2 - Block Diagram of the Analog Power Stage

Page 2.2 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 2 - TECHNICAL DESCRIPTION
AC to DC Adapter (41-740-901)
The 41-740-001 is supplied with an AC to DC Adapter (part number 41-740-901) enabling it to be powered from a
mains supply. The Adapter is fed from an AC supply in the range 90 to 260V (47Hz to 63Hz) via a standard 3-pin
IEC connector and produces two DC outputs of 56V, each with a current rating of 1.3A. The outputs appear on
a ying lead, 2m in length, terminated with a 4-pin socket that plugs directly into the front panel DC input of the
41-740-001. The status of the two 56V outputs is indicated on two green LEDs on the front of the Adapter. Forced
air cooling is provided by two fans on the front panel which draw air into the unit, slots in the top, sides and rear
panels provide exhausts for the cooling air. When installing the Adapter it is important that the air inlets and outlets
are free from obstructions.
Status LEDs
DC output ying lead Power on/off Switch
IEC mains input connector
159mm
227mm
63mm
Figure 2.4 - Front, Rear and Side views of the AC to DC Adapter with overall dimensions
Figure 2.3 - AC to DC
Adapter with attached DC
output lead terminated
with a 4-pin connector

Page 3.1
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering SECTION 3 - INSTALLATION
Page 3.1
REED RELAY MODULE 40-110/115/120/125
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kg
PREOPERATION CHECKS (UNPACKING)
1. Check the module for transport damage and report any damage immediately to Pickering Interfaces.
Do not attempt to install the product if any damage is evident.
2. Position the chassis relative to any other equipment the module(s) will connect with. Ensure the chassis is not
connected to the electrical supply.
3. Ensure that the designated area for the chassis containing the module is of at and solid construction to
withstand and support the combined weight of the module(s) and chassis.
SECTION 3 - INSTALLATION
!
Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable PXI/LXI chassis. The module is designed for indoor use only.
Figure 3.1 - Installing the Module into a PXI/cPCI/LXI Chassis
PXI / LXI Chassis

Page 3.2 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 3 - INSTALLATION
SOFTWARE INSTALLATION
The 41-740 instrument drivers are based on National Instruments VISA and IVI. Please install NI-VISA 2.6 and
NI-IVI 1.83 (or newer version) before installing instrument drivers.
First install the appropriate Pickering PXI switch card drivers by running the installer program Setup.exe, either from
the CD-ROM supplied, or by downloading the latest version from our website http://www.pickeringtest.com - the
recommended method. There are different versions of the Setup program to suit different Windows versions and
software environments. Setup is accompanied by a ReadMe le containing additional installation information. When
installation completes, the installed drivers’ ReadMe le is offered for display. It can also be displayed later using a
shortcut on the Programs>>Pickering menu.
If you are not a LabVIEW user you should choose the “full” version, and once that has been installed run the
LabVIEW Runtime Engine installer via the shortcut on the Programs>>Pickering menu. In the absence of LabVIEW
the Runtime Engine is required to support the Pickering Test Panels application.
Following the instruction of setup program to install Soft Front Panel. The pre-dened installation directory is
C:\Program Files\PXI028. It is recommended to use this path as installation directory. Please follow the prompts
to complete the installation procedure.
Note: To install the device driver on Windows 2000/XP or Windows NT4, you should log on as the “administrator”.
See later in this section for additional information.
Figure 3.2 - Software Installation Screen

Page 3.3
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering SECTION 3 - INSTALLATION
!
HARDWARE INSTALLATION
ELECTRICAL CONNECTION (CHASSIS)
1. The chassis must be electrically installed in accordance with local regional electrical codes by a qualied
engineer.
2. The chassis must be grounded.
Electrostatic discharge can damage the components on the module. To avoid such damage in handling the
board refer to page VII.
Ensure that there is adequate ventilation.
The module should be installed in accordance with the following procedure:
1. Ensure that the system is turned OFF but still connected to mains so that it remains grounded.
2. Choose an appropriate slot in the rack.
3. Remove the blanking plate for the chosen slot.
4. Ensure that the injector/ejector handle is in its downward position. Align the module with the card guides on
the top and bottom of the slot.
Do not raise the injector/ejector handle whilst inserting the module as the module will not insert properly.
5. Hold the handle whilst slowly sliding the module into the card guides until the handle catches on the injector/
ejector rail (refer to Figure 3.1).
6. Raise the injector/ejector handle until the module rmly seats into the backplane. The front panel of the
module should be ush with the front panel of the chassis.
7. Secure the front panel of the module using both screws to the chassis front panel mounting rails.
8. In a system employing a remote control interface to connect an external controller to a PXI chassis or to link
multiple chassis, power-up the system as follows:
a. For a system comprising an external controller and one chassis, power up the chassis before powering up
the external controller.
b. For a system comprising more than one chassis, turn ON the last chassis in the system followed by the
penultimate, etc, and nally turn ON the external controller or chassis containing the system controller.
9. For Pickering Interfaces modular LXI installation there is no requirement to use any particular power up
sequence.

Page 3.4 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 3 - INSTALLATION
Device Driver Installation on Windows 2000
Step 5. “Found New Hardware Wizard” will show up after Windows 2000/XP booting. Click Next >.
Step 6. Choose “Search for a suitable driver for my device (recommended).”. Click Next >.
Step 7. Choose “Specify a location”. Browse the drive path and choose C:\Program Files\PXI028\inf\pxi028_
NT5.inf (or the directory you specied previously). Click Next >.
Step 8. The wizard found “Programmable Power Supply”. Click Next >.
Step 9. Click Finish to nish device driver installation on Windows 2000.
Device Driver Installation on Windows 98
Step 5. “Add New Hardware Wizard” will show up after Windows 98 booting. Click Next >.
Step 6. Choose “Search for a best driver for your device (Recommended).”. Click Next >.
Step 7. Choose “Specify a location”. Browse the drive path and choose C:\Program Files\PXI028\inf\pxi028_9X.
inf (or the directory you specied previously). Click Next >.
Step 8. The wizard found “Programmable Power Supply”. Click Next >.
Step 9. Click Finish to nish device driver installation on Windows 98.
Device Driver Installation on Windows NT4
Step 5. To install pxi028_NT4.inf le, please locate the le at C:\Program Files\PXI028\inf directory (or the
directory you specied previously). Right-click the le then select Install from the options menu.
Step 6. From the Control Panel, double click the Devices icon. Select the device named “NIPALK” then click the
Start button as shown below in Figure 3.3:
HARDWARE VERIFICATION
When the chassis with the Power Supply card installed is powered on, all front panel status LEDs are off. Turn on
the +56Vdc external power source and the green PWR LED will light. Use the control software to set the voltage
and current of an output channel. When the channel’s output is activated, the green ON LED will light. When both
the PWR and ON status LEDs are lit, the Power Supply Module is operating normally. If an OVP or OTP situation
occurs, the red ERR status LED on the front panel will light.
Click Here
Cable Connection and Chassis Power Up.
Step 1. Connect the AC to DC Adapter’s 4 wire output cable (2 x 56 Volts) to the module’s front connector Vin1,
Com1, Vin2 and COM2
During installation there is no need for external power, it can be switched on later.
Step 2. Power the chassis up and boot Windows.
Figure 3.3 - Device Driver Installation

Page 4.1
PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
pickering SECTION 4 - PROGRAMMING GUIDE
SECTION 4 - PROGRAMMING GUIDE
SOFTWARE
Block Diagram
As the following gure shows, the application is on top of the system. It calls the supported function, such as:
pxi028_init(ViRsrc resourceName,…,ViPSession instrumentHandle);
The instrument driver communicates with the hardware via the standard VISA call function.
Application
IVI / pxi028.DLL IVI Driver
VISA32.DLL
41-740 Hardware
User Applications
User applications can be written by standard programming languages such as LabVIEW, LabWindows/CVI, Visual
Basic, Visual C++, and Borland C++ Builder. Examples can be seen in Example Programs at the end of this
section.
Figure 4.1 - Block Diagram of Software

Page 4.2 PXI PROGRAMMABLE POWER SUPPLY MODULE 41-740
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SECTION 4 - PROGRAMMING GUIDE
Software Control
Following are the easy control routines for read, write and PXI conguration log.
ViStatus pxi028_init (
ViRsrc resourceName,
ViBoolean IDQuery,
ViBoolean resetDevice,
ViPSession instrumentHandle);
ViStatus pxi028_InitWithOptions (
ViRsrc resourceName,
ViBoolean IDQuery,
ViBoolean resetDevice,
ViString optionString,
ViPSession instrumentHandle};
ViStatus pxi028_close (ViSession instrumentHandle)
ViStatus pxi028_CongureOperationMode (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViInt32 operationMode);
ViStatus pxi028_CongureOutputEnabled (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViBoolean enabled);
ViStatus pxi028_CongureCurrentLimit (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViInt32 behavior,
ViReal64 limit );
ViStatus pxi028_CongureVoltageLevel (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViReal64 level );
ViStatus pxi028_CongureTriggerSource (
ViSession instrumentHandle,
ViInt32 stratSource,
ViInt32 stopSource,
ViInt32 slope);
ViStatus pxi028_CongureTriggeredOutput (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViReal64 triggeredLevel,
ViReal64 triggeredLimit);
ViStatus pxi028_Measure (
ViSession instrumentHandle,
ViChar _VI_FAR channelName[],
ViInt32 measurementType,
ViPReal64 measurement);