Andover Controls SCX 920 User manual

Andover Controls Corporation i

SCX 920

Installation Guide

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ii SCX 920 Installation Guide

Version D

Reproduction or distribution forbidden.

Subject to change without notice.

Order No. 30-3001-170

Andover Controls Corporation

300 Brickstone Square

Andover, Massachusetts 01810

Published by the Engineering Department at Andover Controls Corporation.

IMPORTANT NOTICE

This product is subject to changewithout notice. This document does not con-

stitute any warranty, express or implied. Andover Controls Corporation re-

serves the right to alter capabilities, performance, and presentation of this

product at any time.

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Andover Controls Corporation iii

Preface

The SCX 920 Installation Guide presents instructions for installing the

SCX 920 on an Infinet network. It first presents site preparation infor-

mation and then step-by-step installation instructions.

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iv SCX 920 Installation Guide

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Andover Controls Corporation v

Contents

Setting Up the SCX 920 Controller and Infinet

Site/System Setup Requirements .............................................................2

Controller Dimensions and Weight ...............................................3

Power Requirements ......................................................................3

Cable Limitations ...........................................................................3

Lightning Protection ......................................................................4

Building Ground Requirements .....................................................4

Inspecting the Ground ....................................................................5

Environmental Requirements ........................................................5

Output Equipment Requirements ..................................................6

Form C Outputs .............................................................................6

Analog Outputs—Voltage .............................................................6

Analog Outputs—Current ..............................................................6

Input Circuit Specifications ...........................................................7

Special Factors for Thermistors .....................................................7

Laying Out the Site Setup ..............................................................9

Installing the SCX 920........................................................................... 10

Parts Required ..............................................................................10

Mounting ......................................................................................10

Disabling the Manual Overrides ..................................................12

Connecting the Battery ................................................................16

Connecting the AC Power ...........................................................16

Selecting the AC Input Voltage ...................................................17

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vi SCX 920 Installation Guide

Wiring the Infinet to the SCX 920 ...............................................18

Wiring the Infinet to the Infinity CX 9000 ..................................19

Setting the Input Reference Resistor Switches ............................19

Wiring the Inputs .........................................................................19

Wiring the Outputs ......................................................................23

Wiring Tristate Outputs ...............................................................23

Wiring Analog Outputs—Voltage ...............................................24

Wiring Analog Outputs—Current ...............................................25

Wiring Form C Outputs ...............................................................25

Setting the Override Switches .....................................................26

Connecting Modules to the Expansion Port ................................27

Powering Up the SCX 920 .....................................................................28

Reset Button .................................................................................29

Adjusting the LCD View Angle ..................................................29

Completing the Installation ..........................................................30

Connecting the Andover Controls Service Tool ..........................30

Adjusting Analog Override Values .............................................30

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Andover Controls Corporation vii

Figures

Figure 1. The Front Cover of the SCX 920 .........................................11

Figure 2. Locations of Screw Holes, Other Openings in Cabinet .......13

Figure 3. The Printed Circuit Board of the SCX 920 ..........................15

Figure 4. Metal Plate and Screw for Power Supply Wire ...................17

Figure 5. Infinet Cable Wiring ............................................................18

Figure 6. Wiring Diagram for Thermistor Input ..................................21

Figure 7. Wiring Diagram for Counter or Digital Input...................... 21

Figure 8. Wiring Diagram for Voltage Input .......................................22

Figure 9. Wiring Diagram for Current Input .......................................22

Figure 10. Wiring Diagram for Tristate Outputs ...................................24

Figure 11. Wiring Diagram for Voltage Outputs ..................................25

Figure 12. Wiring Diagram for Current Outputs ...................................25

Figure 13. Wiring Diagram for Form C Outputs ...................................26

Figure 14. Five Positions on Odd Numbered Override Switch............. 27

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viii SCX 920 Installation Guide

Tables

Table 1. Wire Gauges and Corresponding Maximum Runs

for Sensing Temperatures Up to 70ºF ...................................8

Table 2. Wire Gauges and Corresponding Maximum Runs

for Sensing Temperatures Up to 100º F .................................8

Table 3. Wire Gauges and Corresponding Maximum Runs

for Sensing Temperatures Up to 150º F .................................9

Table 4. Connecting Jumpers for AC Input Voltages ........................17

Table 5. Corresponding Override Switch Settings

for Different Outputs Types .................................................27

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SCX 920 Installation Guide 1

Setting Up the SCX 920

Controller and Infinet

This manual covers the following:

• Site/System Setup Requirements

• Installing the SCX 920

• Powering Up the SCX 920

Warranty Registration

Your warranty is effective for 18 months starting on the date the system

is shipped.

Warning

All wiring and installations must comply with local, state, and national

electrical codes.

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Hardware Installation

2 SCX 920 Installation Guide

Site/System Setup Requirements

Before you proceed to install thesystem, you should map outwhere you

planto installeachcontroller,terminal/workstation, andmodem. When

planning the sites, be aware of any electrical interference that may oc-

cur. You also need to be aware of cabinet dimensions, power

requirements, cable limitations, and environmental requirements.

Note

This equipment has been tested and found to comply with the limits for

a Class A digital device, pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial

environment. This equipment generates, uses, and can radiate radio

frequency energy and, if not installed and used in accordance with the

instructions in this manual, may cause harmful interference to radio

communications. Operation of this equipment in a residential area is

likely to cause harmful interference in which case the user will be

required to correct the interference at his own expense.

Note

This digital apparatus does not exceed the Class A limits for radio noise

emissions from digital apparatus set out in the Radio Interference

Regulations of the Canadian Department of Communications.

Avis

Le présent appareil numérique n’émet pas de bruits radioélectriques

dépassant les limitesapplicables aux appareils numériques de la class A

prescrites dansle Règlement sur le brouillageradioélectrique édicté par

le ministère des Communications du Canada.

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