Pickering 40-296 User manual

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Issue 6.5 January 2020
40-296 User Manual
PXI Programmable Potentiometer Module

Page (II) PROGRAMMABLE POTENTIOMETER MODULE 40-296
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Page (II) REED RELAY MODULE 40-110/115/120/125
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© COPYRIGHT (2020) 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

Page (III)
PROGRAMMABLE POTENTIOMETER MODULE 40-296
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Page (III)
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
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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]

Page (IV) PROGRAMMABLE POTENTIOMETER MODULE 40-296
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Page (IV) REED RELAY MODULE 40-110/115/120/125
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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.

Page (V)
PROGRAMMABLE POTENTIOMETER MODULE 40-296
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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
Hardware Installation ............................................................3.2
Software Installation .............................................................3.2
Testing Operation ..................................................................3.3
Section 4
Programming Guide....................................................................4.1
Programming Options For Pickering PXI Modules ............4.1
Module Architecture..............................................................4.2
Programming The Module ....................................................4.2
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting .........................................................................6.1
Section 7
Maintenance Information............................................................7.1
Relay Lookup Tables.............................................................7.1
Calibration..............................................................................7.7
CONTENTS

Page (VI) PROGRAMMABLE POTENTIOMETER MODULE 40-296
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THIS PAGE INTENTIONALLY BLANK

Page (VII)
PROGRAMMABLE POTENTIOMETER MODULE 40-296
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Page (VII)
2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
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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 host 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.
Not to be used in safety critical circuits, refer to the Pickering Interfaces’ terms & conditions of sale.
This module must not be used for the switching of Mains Circuits. For the switching of voltages up
to the module’s full specication, Secondary Circuit power supplies and the Device Under Test must
be fully isolated from the Mains Circuit and the safety earth.
The host chassis must be correctly installed and be connected to mains or factory safety ground,
please refer to your chassis installation manual.
Diagram Showing Separation Between The Mains Circuit and Secondary Circuit / DUT
For the purposes of this document, a Mains Circuit is an installation classied as Overvoltage
Category II up to 300V. Separation between the Secondary Circuit and Mains Circuit is achieved
by a transformer in which the primary windings are separated from the secondary windings by
reinforced insulation, double insulation, or a screen connected to the protective conductor terminal.
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.
PXI Switching
Module
Device
Under Test
Power
Supply
Power
Supply
Host Chassis
Secondary Circuit
Mains
Circuit
Mains
Circuit
Mains/Factory
Safety Ground

Page (VIII) PROGRAMMABLE POTENTIOMETER MODULE 40-296
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Page (VIII) 2 AMP 1-POLE UHD MATRIX MODULES 40-575 / 576 / 577 / 578 / 579
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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.

Page 1.1
PROGRAMMABLE POTENTIOMETER MODULE 40-296
pickering SECTION 1 - TECHNICAL SPECIFICATION
SECTION 1 - TECHNICAL SPECIFICATION
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PXI Programmable Resistor Module 40-295/296
ISSUE 10.0 APR 2018
• Highest Density Resistor Module
• 8, 12, 16 and 24-Bit Versions
• Up To 18 Channels of 8-Bit Resolution
• Up To 10 Channels of 16-Bit Resolution
• Provides Fully Isolated Variable Resistors
• Available As Adjustable Resistor or Potentiometer
• Built-In Non-Volatile Memory For Calibration Data
• Uses High Reliability Pickering Reed Relays For
Maximum Performance
• Up to 2000 Value Changes Per Second
• Special Versions With Non Standard Resistors Built
To Order
• VISA & Kernel Drivers Supplied for Windows
Plus Soft Front Panel
• Supported by PXI or LXI Chassis
• 3 Year Warranty
The 40-295 is a programmable resistor module with up to 18
resistor chains with 8-bit resolution in a single PXI module. The
module to can also be supplied in 12, 16 or 24-bit resolution
versions for applications requiring ner resolution, greater
resistance range or higher channel count. The module is ideal
for simulating sensors for control and management systems, or
verifying system response in design verication or manufacturing
test.
The 40-296 version is wired as a potentiometer with two end
connections and a wiper.
The model is available with a variety of channel counts to allow
the user to choose the lowest cost solution for their application.
Versions with other resistance values can be provided to meet
specic requirements. This includes the tting of an offset
resistor to set the minimum resistance. If versions are required
with different resistance ranges, please contact the Pickering
Interfaces’ Sales Ofce for assistance.
All switches are instrument grade reed relays with low thermal offset
voltage to ensure operation under all conditions and a long service life.
The module is supplied with VISA drivers and a soft front panel.
Programmable Resistor Module Options Overview
Resolution Resistance Range Conguration Number Per
Module
8-Bit 0Ω to 255Ω
Resistor
10 or 18
12-Bit 0Ω to 4kΩ 5 or 10
16-Bit 0Ω to 65kΩ 5 or 10
24-Bit 0Ω to 16MΩ 3 or 6
8-Bit 0Ω to 255Ω Wiper
Potentiometer
5 or 9
12-Bit 0Ω to 4kΩ Wiper 2 or 4
16-Bit 0Ω to 65kΩ Wiper 2 or 4
24-Bit 0Ω to 16MΩ Wiper 1 or 3

Page 1.2 PROGRAMMABLE POTENTIOMETER MODULE 40-296
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SECTION 1 - TECHNICAL SPECIFICATION
Programmable Resistor – 40-295/296
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Overview
R16R15R14R13R12R11R10R9R8R7R6R5R4R3R2R1
Resistor Chain 1
R OFF
Resistor Chain 2
Resistor Chain 3
Resistor Chain 4
Resistor Chain 5
Schematic for 5 x 16 bit Resistor Module 40-295-021-5/16
R8R7R6R5R4R3R2R1
Potentiometer 1
R16 R15 R14 R13 R12 R11 R10 R9
Potentiometer 2
Potentiometer 3 Potentiometer 4 Potentiometer 5
Schematic for 5 x 8 bit Potentiometer Module 40-296-021-5/8
Low Density Resistor Module
(40-295-021/40-296-021)
High Density Resistor Module
(40-295-121/40-296-121)
Programmable Resistor Soft Front Panel