Watlow Relay Interface Board Manual do Utilizador descarregar pdf (Página 11)

Relay Interface Board Installation Guide

Power Connections

Choose one of the following options for installing and configuring the jumper on

JU1 appropriately for your I/O board.

•

Option 1: 8, 16, and 24-module I/O boards only:

Jumper JU1 in position A to

get power from the controller to the I/O boards via the ribbon cable.

•

Option 2: 8, 16 and 24-module I/O boards only:

Jumper JU1 in position B to

disconnect the controller power supply. Jumper the I/O boards to get power from

the ribbon cable. Use an external power supply to provide power to TB1. This

arrangement powers the I/O boards through their ribbon cables.

•

Option 3: For any I/O board:

Jumper JU1 in position A. Set the I/O board for

an external power supply. Then connect power from TB1 to the terminals on the

I/O board.

•

Option 4: For any I/O board:

Jumper the I/O board for an external power sup-

ply. Wire an external power supply directly to the terminals on the I/O board.

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Watlow Relay Interface Board Manual do Utilizador Página 11