Pickering SYSTEM 10 User manual

Page (1)
POWER RELAY MODULE 20-150
pickering
Issue 9.2 July 2019
User Manual
GPIB Power Relay Module
(Model No. 20-150)
pickeringtest.com pickering
SYSTEM 10/20
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page (II) POWER RELAY MODULE 20-150
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Page (II) REED RELAY MODULE 40-110/115/120/125
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© COPYRIGHT (2019) 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)
POWER RELAY MODULE 20-150
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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
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]

Page (IV) POWER RELAY MODULE 20-150
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Page (IV) GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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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.

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POWER RELAY MODULE 20-150
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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 ............................................................3.1
Software Installation .............................................................3.3
Self-Test..................................................................................3.4
Section 4
Programming Guide....................................................................4.1
Programming the Module .....................................................4.1
Section 5
Connector Information................................................................5.1
Section 6
Trouble Shooting.........................................................................6.1
Installation Problems ...........................................................6.1
Section 7
Maintenance Information............................................................7.1
Relay Lookup Tables.............................................................7.1
PCB and Component Layout................................................7.3
CONTENTS
Please use the hyperlinked text to navigate to the page required

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Page (VII)
POWER RELAY MODULE 20-150
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Page (VII)
GENERAL PURPOSE REED RELAY MODULE 10-110/115/120/125
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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 System 10/20 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.

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Page 1.1
POWER RELAY MODULE 20-150
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SECTION 1 - TECHNICAL SPECIFICATION
Typical Power Switching System
pickeringtest.com
GPIB Power Relay Module 20-150
ISSUE 5.5 JUL 2019
• Up To 16 Power Relays Per Module
• Choice of 13A or 30A Power Relays
• Capable of Switching Up To 250V AC
• 8 Additional Control Lines For Operating
External Relays
• Suitable For Slave Switching Large Relays or
Contactors
• Front Panel Status Indicators
Range Description:
• 20-150-001 16 x SPDT Medium Power Relays (13A)
• 20-150-101 2 x SPST High Power Relays (30A)
12 x SPDT Medium Power Relays (13A)
• 20-150-201 4 x SPST High Power Relays (30A)
8 x SPDT Medium Power Relays (13A)
• 20-150-301 8 x SPST High Power Relays (30A)
2 x SPDT Medium Power Relays (13A)
16 x SPDT Medium Power Relays (20-150-001)
8 x SPDT Medium Power + 4 x SPST
High Power Relays (20-150-201)
Power Relay Modules are intended for switching heavy AC or DC
loads or for slaving up to large external relays, contactors and
solenoids. The 20-150 range is available with a choice of Medium
and High Power Relays for switching up to 30A.
The 20-150 range of Power Switching Modules area available with
a choice of 13A or heavy duty 30A relays.The standard version
(type 20-150-001) has 16 SPDT Power Relays which will switch
up to 13A at 30V DC or 250V AC For applications requiring greater
current capability further versions feature 30A SPST relays.
Connectors
Connections to all modules are made via three front panel mounted
power connectors (CPC types). There are four versions available
depending upon the conguration (7-pin, 16-pin, 22-pin and 24-pin),
as shown below:
• 20-150-001 3 x 24-pin power connectors
• 20-150-101 3 x 22-pin power connectors
• 20-150-201 3 x 16-pin power connectors
• 20-150-301 2 x 7-pin + 1 x 22-pin power connectors
*Please contact Pickering for alternative
PXI/LXI/USB solutions
*

Page 1.2 POWER RELAY MODULE 20-150
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SECTION 1 - TECHNICAL SPECIFICATION
Power Relay Module – 20-150
pickeringtest.com
Specifications
Medium Power Relay Switching Specification
Contact Type: AgCdO
Contact Rating
Resistive Load:
Inductive Load:
13A at 250V AC
13A at 30V DC
13A at 250V AC
5A at 30V DC
Max Standoff Voltage:
Max Switching Voltage:
Max Switch Current:
Max Carry Current:
600V
250V rms
13A
13A
Path Resistance - On:
Path Resistance - Off:
200mΩ
>1x108Ω
Bandwidth (50Ω): 10MHz
Maximum operate time: †
Max relay close settling time:
Max relay open settling time:
15ms
10ms
7ms
Expected Life
Low power load:
Full power load:
>1x107operations
>1x105 operations
Operating/Storage Conditions
Operating Conditions
Operating Temperature:
Humidity:
Altitude:
0°C to +55°C
Up to 95% non-condensing
5000m
Storage and Transport Conditions
Storage Temperature:
Humidity:
Altitude:
-20°C to +75°C
Up to 95% non-condensing
15000m
Safety & CE Compliance
All modules are fully CE compliant and meet applicable EU
directives: Low-voltage safety EN61010-1:2010, EMC Immunity
EN61326-1:2013, Emissions EN55011:2009+A1:2010.
Programming
The 20-150 module is simple to program either by single bit or by
byte (8 bits).
ARESET a Clear all outputs on module a
CLOSE a,b Set bit number bon module a
DELAY t Force a minimum delay of tmilliseconds
between two instructions
OPEN a,b Clear bit number bon module a
RESET Clear all bits/switches on all modules
VIEW? a[,b] View status of module a, can be viewed at any
time either as a word or by bit bas a logical
value (1 or 0)
WRITE a,w Send word wto module a (address a contains
both the module address and the position of
the byte being changed: 1 to 3 for a 24 relay
unit).
20-150 modules must be used in conjunction with the 10-921
interface module (They are not compatible with the older 10-920
interface).
High Power Relay Switching Specification
Contact Type: Silver Alloy
Contact Current Rating
Resistive Load: 30A at 250V AC
30A at 30V DC
Max Standoff Voltage:
Max Switching Voltage:
Max Switch Current:
Max Carry Current:
600V DC
270V rms
30A
30A
Path Resistance - On:
Path Resistance - Off:
50mΩ
>1x108Ω
Bandwidth (50Ω): 10MHz
Maximum operate time: †
Max relay close settling time:
Max relay open settling time:
30ms
20ms
5ms
Expected Life
Low power load:
Full power load:
>5x106operations
>1x105 operations
† This is the time taken from the start of the IEEE-488 or RS-232
message to the closure of the relay (assuming fast IEEE-488 /
RS-232 communication and no pending operations).
Additional Control Lines
To allow straight forward control of externally mounted relays (e.g.
High Power, High Voltage, Microwave) the 20-150 is also tted
with 8 open-collector transistor control lines. These are rated at a
maximum of 50V, with 0.5A current sink capability.
Indicator LEDs
All modules have LED indicators for each relay, thus easing system
programming and debugging.
Mechanical Characteristics
The Power Relay Module conforms to the 6U height (262mm)
Eurocard standard and is housed in a 160mm deep screened
plug-in module. Panel width is 3.0 Inches.
Power Relay Types
The 20-150 Power Relay Module is available with a choice of
three power switch types: Medium Power Relays are suitable
for switching up to 13A, they are socket mounted for ease of
maintenance. High Power Relays will switch up to 30A.

Page 1.3
POWER RELAY MODULE 20-150
pickering SECTION 1 - TECHNICAL SPECIFICATION
Power Relay Module – 20-150
pickeringtest.com
Ordering Information
© Copyright (2019) Pickering Interfaces. All Rights Reserved Pickering Interfaces maintains a commitment to continuous product development, consequently we reserve the right to vary from the description given in this data sheet.
Product Order Codes
Product Customization
Pickering System 20 modules are designed and manufactured
on our own exible manufacturing lines, giving complete product
control and enabling simple customization to meet very specic
requirements.
Customization can include:
• Alternative relay types
• Mixture of relay types
• Alternative number of relays
• Different performance specications
All customized products are given a unique part number, fully
documented and may be ordered at any time in the future. Please
contact your local sales ofce to discuss.
Power Relay Module
No. of Medium
Power Relays
No. of High
Power Relays
Product Order
Code
16
12
8
2
0
2
4
8
20-150-001
20-150-101
20-150-201
20-150-301
Support Products
Mating Connectors & Cabling
24-Pin CPC Socket with Pins
22-Pin CPC Socket with Pins
16-Pin CPC Socket with Pins
7-Pin CPC Socket with Pins
10-962-001
10-962-002
10-962-003
10-962-004
Pin Extraction Tool
Crimp Tool
10-962-901
10-962-902
Note: Mating connectors are provided free of charge with Power Relay
Module purchases.

Page 1.4 POWER RELAY MODULE 20-150
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SECTION 1 - TECHNICAL SPECIFICATION
Mechanical Specications
Voltage Supplies
Logic Supply 5Vdc ±5%.
Relay Supply 12Vdc ±10%
† Approx. dimensions. Standard 160mm Eurocard.
20-150
AMP CPC Circular Connectors
Approx. Weight 1.0kg
Dimensions (mm) 6U Eurocard as specied, for details
consult the factory.
Front Panel Width 76.2
Height 262
Overall Length † 189
Built-In Self Test
Self-Test is always performed at power up and may also be exercised either by using the modules individual RS232
interface or under program control. Any warning or error indications can be diagnosed using the DIAGNOSTIC?
command, refer to Section 3 for further details.

Page 2.1
POWER RELAY MODULE 20-150
pickering SECTION 2 - TECHNICAL DESCRIPTION
SECTION 2 - TECHNICAL DESCRIPTION
FUNCTIONAL DESCRIPTION
FRONT PANEL CONNECTORS
RELAY
DRIVERS
RELAY
COILS
RELAY
CONTACTS
TO FRONT
PANEL
LEDs
INDICATING
AN ACTIVE
CHANNEL
SIMM
CONNECTOR J1
BASE
BOARD
A functional block diagram is provided in Figure 2.1. The module is powered via the chassis connector J1 with a 12V
relay supply and 5V logic. The interface to the user test equipment is via the front panel mounted connectors. The
module comprises a PCB populated with electro-mechanical power relays available with SPDT Changeover and
SPST Normally Open switch congurations depending on the module, with LEDs on the front panel indicating when
the relays are energised via control signals from the relay drivers. The relay drivers are fed with serial data via the
SIMM card. Relay switching is determined by operator programming.
Figure 2.1 - Power Relay Module: Functional Block Diagram

Page 2.2 POWER RELAY MODULE 20-150
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SECTION 2 - TECHNICAL DESCRIPTION
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Page 3.1
POWER RELAY MODULE 20-150
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Page 3.1
GENERAL PURPOSE REED RELAY MODULE 20-110/115/120/125
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SECTION 3 - INSTALLATION
Power Supply
with
Interface Module
above
6U System 20 Modules
(Not position dependent)
3U System 10 Modules
(Not position dependent)
kg
PRE-OPERATION 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.
!
Refer to the Warnings and Cautions at the front of this manual
Modular products require installation in a suitable System 10/20 chassis.
The module is designed for indoor use only.
!
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. Ensure the power supply lead provides the necessary integrity of chassis ground.
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.
Figure 3.1 - System 10/20 Front Access Case Split 24/60 with Various Modules Fitted.

Page 3.2 POWER RELAY MODULE 20-150
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SECTION 3 - INSTALLATION
Page 3.2 GENERAL PURPOSE REED RELAY MODULE 20-110/115/120/125
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SECTION 3 - INSTALLATION
Figure 3.2 - Module Guide Rail Position
Figure 3.3 - A Partially Built System 20 Front Access Chassis
!
MODULE INSTALLATION
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. If the module has address switches ensure they are set to the appropriate position. (See Section 4).
Note individual modules are not sent out with a system drawing detailing their address.
3. Choose an appropriate slot in the rack and remove the blanking plate (if tted).
(See the Pickering 10-910M IEEE-488 GPIB System 10/20 Ancillaries manual for further details).
(When tted, additional modules will be automatically recognised by the interface card. See Figure 3.1).
4. If necessary t the module guide rails as supplied with the module to both the top and bottom of the chassis
in that slot position. One guide rail slot should be to the left of the connector as shown in Figure 3.2.
5. Align the module with the backplane and screw holes at the front of the chassis.
Hold the handle whilst slowly sliding the module into the card guides until the module seats rmly into the
backplane. See Figure 3.4. The front panel of the module should be ush with the front or rear panel of the
chassis.
6. Screw the front panel of the module to the chassis front panel mounting rails.
7. Ensure all necessary modules including the power supply are tted to the rack and other slots blanked off
before powering up.
To achieve the correct initialisation of the sytem, ensure any slave chassis are powered up before the master
chassis.

Page 3.3
POWER RELAY MODULE 20-150
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Page 3.3
GENERAL PURPOSE REED RELAY MODULE 20-110/115/120/125
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Figure 3.4 - Module Insertion in a Pickering 20-935A-001 Front Access Chassis
SOFTWARE INSTALLATION
Refer to the Pickering manual 10-921M.
For the latest version of the driver please refer to our web site pickeringtest.com where links to our Software
Download page will provide the driver software for the various programming environments encountered.
LK2
LK3
LK4
LK5
20-150-001
16 x 16A Relays
LK2
LK3
LK4
LK5
20-150-101
12 x 16A Relays
2 x 30A Relays
LK2
LK3
LK4
LK5
20-150-201
8 x 16A Relays
4 x 30A Relays
LK2
LK3
LK4
LK5
20-150-301
2 x 16A Relays
8 x 30A Relays
LINK SETTINGS
The links on the PCB are set at the factory to congure the specic module required. They should not need to be
altered.
Figure 3.5 - Link Settings

Page 3.4 POWER RELAY MODULE 20-150
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SECTION 3 - INSTALLATION
Self-Test is invoked at power on and may also be operated under software control using the *TST? command. If
the Self-Test fails the Error LED on the front panel will be turned on. Any test parameter that is seen from previous
test data to be drifting towards out of specication, but does not at present warrant an error alarm, will turn on the
Service LED on the front panel. A full pass/fail description is available using the DIAGNOSTIC? command.
Self-Test comprises 3 levels, see Figure 3.6:
1. Logic Test: Checks all logic including on-board microprocessor RAM, ROM, and EEPROM, relay drivers etc.
2. Analogue Test: Checks voltage levels are correct for all the power supplies and front panel LED's.
3. Relay Coil Test: The resistance of all reed relay coils are checked.
Note: In the unlikely event of a relay needing replacement additional reed relays are available from Pickering
Interfaces.
Self-Test Operation
Self Test is always run at power on, taking approximately 5 seconds.
If self test is run under software control it will rstly clear the whole module . So it is very important to prepare your
external instruments and U.U.T. for this! During self-test all switches are opened so your external circuitry will see
only very high resistance inputs.
When the self-test has nished the relays will be returned to an all clear state (i.e. the previous state will not be
remembered!).
Please note that because of the long self-test time your computer may time out waiting for the test result (many PC's
have default timeouts set to quite low values).
Conguring Self Test
Self Test may be congured so that some or all of the test functions can be disabled. This is achieved by setting the
appropriate bit in the test conguration byte. Refer to Section 4 for details on how to recongure the driver card to
your application.
Detailed Self Test Reporting using the DIAGNOSTIC? Query
The DIAGNOSTIC? query will give an ASCII string detailing any self test failures. These will include:
Logic: mP, RAM, EPROM, Relay Drivers, Invalid Link Settings etc.
Analogue: 5 Volt supply low etc.
Relay Coils: Open Circuit Coil.
This string is not intended to be processed by the user’s software, it is suitable for copying directly onto the screen
of your control computer. This information will then indicate maintenance required (please contact Pickering for
further help).
SELF-TEST FUNCTION

Page 3.5
POWER RELAY MODULE 20-150
pickering SECTION 3 - INSTALLATION
SELF TEST INITIATED BY:
.POWER ON
.*TST? INTERFACE COMMAND
.TS 1 RS232 COMMAND
CLEAR MODULE
MEMORY and LOGIC
TEST
ANALOGUE TEST
LOGIC TEST
FAIL ?
ANALOGUE
TEST FAIL ?
RELAY COIL
TEST FAIL ?
RELAY COIL TEST
SELF TEST PASS
SELF TEST FAILURE
ERROR LED ON
USE DIAGNOSTIC? COMMAND
Yes
No
Yes
No
Yes
No
Figure 3.6 - Self-Test: Basic Flow Diagram

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SECTION 3 - INSTALLATION
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