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Power connections, Wiring the power supply, Power connections 23 – Watlow Series D8 User Manual

Page 41: Wiring the power supply 23, Figure 2.11—d8 series controller with tb50 23

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Series D8 User’s Guide

Chapter 2: Installation

Doc. 0600-3120-2000

Watlow Anafaze

23

The best way to avoid ground loops is to minimize unneces-

sary connections to ground. Do not connect any of the follow-

ing terminals to earth ground:

Power supply dc common

TB1 terminals 9, 10, 19 (analog common)

TB2 terminal 2 (dc power common)

Do not connect the analog common terminals to the other ter-

minals listed above.

Power Connections

This section explains how to make power connections to the

D8 and the TB50.

Figure 2.11 D8 Series Controller with TB50

Wiring the Power Supply

WARNING!

Use a power supply with a Class 2 rating
only. UL approval requires a Class 2 power
supply.

Connect power to the controller before any other connections,

This allows you to ensure that the controller is working before

any time is taken installing inputs and outputs.

CONNECTOR

DEVICENET

NETWORK LED

INDICATOR LIGHT
MODULE LED

INDICATOR LIGHT