Relay connections on the i/o board, Desiccant pack – In-Situ Con TROLL PRO Installation Manual (purchased after 10 May 2012) User Manual

Page 24

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Relay Connections on the I/O Board

Please note that the DC and AC models have different types of relays available. All
relay connections are unpowered relay NC & NO contact connections only.

DC Models

Low-voltage relays are available through the I/O board only.

AC Models

Low-voltage relays are available through the I/O board.

High-voltage relays are available through the AC board.

Danger—Do not connect high-voltage circuits (>50 V) to the terminal connectors

on the I/O board!

Danger—Ne pas connecter les circuits a haute tension (plus de 50 V) aux bornes

de connexion sur la carte entrées/sorties!

Danger—Make sure that power to the instrument is disconnected before making

any wiring connections.

Danger—Débrancher toute alimentation à l'appareil avant de connecter les fils.

1. Disconnect power to the instrument.

2. Use a Phillips screwdriver to remove the controller lid.

3. Connect the stripped-and-tinned relay wires to the terminal strip as follows.

GND

Signal ground

COM1 (or COM2)

Common

NC1 (or NC2)

Normally closed

NO1 (or NC1)

Normally open

4. Replace the controller lid and tighten screws.

5. Reconnect power to the device.

Desiccant Pack

Before closing the controller box, place the 5-inch desiccant pack (PN 0087630) inside
the controller, being careful not to disturb any wiring.

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