Tektronix Switch VX4357 User Manual

User Manual

VX4357

Relay Switching Module

070-9124-02

This document supports firmware version 1.00

and above.

Warning

The servicing instructions are for use by qualified

personnel only. To avoid personal injury, do not

perform any servicing unless you are qualified to

do so. Refer to the Safety Summary prior to

performing service.

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Contacting Tektronix

Product

Support

For application-oriented questions about a Tektronix measure-

ment product, call toll free in North America:

1-800-TEK-WIDE (1-800-835-9433 ext. 2400)

6:00 a.m. – 5:00 p.m. Pacific time

Or contact us by e-mail:

[email protected]

For product support outside of North America, contact your

local Tektronix distributor or sales office.

Service

Support

Contact your local Tektronix distributor or sales office. Or visit

our web site for a listing of worldwide service locations.

http://www.tek.com

In North America:

For other

information 1-800-TEK-WIDE (1-800-835-9433)

An operator will direct your call.

To write us Tektronix, Inc.

P.O. Box 1000

Wilsonville, OR 97070-1000

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EC Declaration of Conformity

Tektronix Holland N.V.

Marktweg 73A

8444 AB Heerenveen

The Netherlands

declare under sole responsibility that the

VX4357

meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low

Voltage Directive 73/23/ECC for Product Safety. Compliance was demonstrated to the

following specifications as listed in the Official Journal of the European Communities:

EMC Directive 89/336/EEC:

EN 55011

Class A Radiated and Conducted Emissions

EN 50081-1 Emissions:

EN 60555-2

AC Power Line Harmonic Emissions

EN 50082-1 Immunity:

IEC 801-2

IEC 801-3

IEC 801-4

IEC 801-5

Electrostatic Discharge Immunity

RF Electromagnetic Field Immunity

Electrical Fast Transient/Burst Immunity

Power Line Surge Immunity

Low Voltage Directive 73/23/EEC:

EN 61010-1/A2 1995 Safety requirements for electrical equipment for

measurement, control, and laboratory use

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Appendix E – Performance Verification Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A – 25

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To avoid potential hazards, use this product only as specified.

Installation Category Description

CAT II LocalĆlevel mains (wall sockets).

Equipment at this level includes appliances,

portable tools, and similar products. Equipment

is usually connected by a power cord.

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CAT II, 48 V dc

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V1.4

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SA, 125V, fast blow

Littelfuse

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To avoid electric shock, tighten the module mounting screws after

installing the module into the mainframe to ensure that the front panel is

properly grounded.

There are two labeled ejector handles on the card. To install the card

correctly, make sure the ejector labeled “VX4357” is at the top.

Note.

To maintain proper mainframe cooling, unused mainframe slots must be

covered with the blank front panels supplied with the mainframe.

Verify that the mainframe is able to provide adequate cooling and power

with this module installed. Refer to the mainframe Operating Manual for

instructions.

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Appendix E: Performance Verification Procedure

The performance verification procedure for the VX4357 Relay Switching Module checks that the

module is operating within specification.

Conventions Used In This Procedure

Please familiarize yourself with the following conventions which apply throughout this proce-

dure:

All control of the VX4357 Module will be accomplished through a VXI Slot 0 device. ASCII

characters will form the commands sent to control the module and ASCII characters will be

read from the module.

Throughout this document writes to the VX4357 Module will be shown as: Send “Q1^lf”

Where Q1^lfis the command (Query relay one) terminated with a linefeed character (lf).

Commands must be sent exactly as shown.

Reads from the module are shown as: Read “0 ^crlf”

Where 0^crlfis the ASCII string returned from the VX4357 Module, terminated with a carriage

return and linefeed (^crlf). The ASCII string returned from the module will be exactly as

shown.

Unless noted, all commands are sent to the VX4357 Module and all ASCII strings read are

read from the VX4357 Module.

Two characters are used throughout the communication sequences: “^cr” is the carriage return

character (character 13) and “lf” is the line feed character (character 10). These characters are

the terminating characters for communication. They are shown throughout this document in

the font shown here. Most reads from the VX4357 Module are terminated with both

characters and are shown as “^crlf”. Writes to the module require only a “lf”, but both

characters may be used.

An ASCII upper case alpha character “O” will be shown as “O”, and an ASCII numeric zero

will be shown as “0”.

A–15

VX4357

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Appendix E: Performance Verification Procedure

Equipment Required

Table 1–1 lists the equipment required for the performance and verification procedure.

Table 1–1: Equipment Required

Required tools and equipment

Part number

VXI Mainframe (such as the Tektronix VX1410)

n/a

VXI Slot 0 with resource Manager (Tektronix VX4521) and appropriate cables and

interface cards.

Connector, DD-50P

n/a

VX1785S connector

Talker/Listener (Send/Read)

4.5 digit Digital Multimeter with a 4-wire Ohms capability and capable of reading

greater then 10 Gigohms.

Connector Wiring

Using the DD-50P connector wire the following pins together, leaving a pig tale, and label this

N.O.:

1, 3, 5, 7, 9, 11, 13, 15, 18, 20, 22, 24, 26, 28, 30, and 32

Using the VX1785S connector wire the following pins together, leaving a pig tale, and label this

N.C.:

34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, and 49

Default Conditions And LED Test

1. Apply power to the VXI system and wait 10 seconds.

Only the green PWR LED will be lit.

2. Send “S^lf” (Set all relays) to the VX4357.

3. Verify that all LEDs for CH00 through CH31 are lit.

4. Send “R^lf” (Reset all relays) to the VX4357.

5. Verify that all LEDs for Ch00 through CH31 are out.

DMM Connection And Set-Up

Connect the DMM signal high and input positive (+) side to the pigtail on the DD-50P connector

that is called out in the testing section.

Connect the DMM signal low and input negative (–) side to the pigtail on the VX1780S connec-

tor that is called out in the testing section. Set the DMM into 4 wire Ohms mode and autorange.

A–16

VX4357

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Appendix E: Performance Verification Procedure

Relay Resistance Test: Channel 00

1. Place the DD-50P connector onto P4.

2. Place the DMM + side to the pigtail labeled N.C., and place the DMM – side to DD-50P

pin-2 (wiper Channel 00).

3. The DMM will read less then 400 milliohms.

4. Send “C0^lf” (Close relay CH00) to the VX4357.

5. The DMM will read greater then 10 Gigohms.

6. Send “Q0^lf” (Query relay CH00) to the VX4357.

7. Read “1 ^crlf” (Relay CH00 is closed).

8. Place the DMM + side to the pigtail labeled N.O .

9. The DMM will read less then 400 milliohms.

10. Send “O0^lf” (Open relay CH00) to the VX4357.

11. The DMM will read greater then 10 Gigohms.

Repeat steps 1 through 11 for relays CH01 through CH15, substituting Cx^lfand Oxlf for the ap-

preciate relay, where x = relay to close or open. Use Table 1–2 for the channel to wiper pin-out.

Table 1–2: Channel to wiper pin-out

Channel

Wiper pin

12. After repeating the above steps for Ch00 through CH15, remove the DD–50P connector from

P4 and place it on P5.

13. Add 16 to all relay references and repeat the above steps for relays CH16 through CH 31.

A–17

VX4357

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Appendix E: Performance Verification Procedure

Delay Command Test

1. Send “Rlf” (Reset the VX4357) to the VX4357.

2. Send “D1000C0C1” (Delay, Close CH00 and CH01 on the VX4357) to the VX4357.

Monitor the time difference between CH00 LED to lit and CH01 to lit. This time will be

approximately 1 second.

3. Send “T^lf” (Delay Time of the VX4357) to the VX4357.

4. Read “1000 ^crlf” (Time Delay programmed to 1000 milliseconds).

A–18

VX4357

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