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Wiring resistance devices (potentiometers) – Rockwell Automation 1762-IR4 RTD/Resistance Input Module User Manual

Page 10

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10 MicroLogix 1200 RTD/Resistance Input Module

Publication 1762-IN014B-EN-P - July 2013

3-Wire RTD Configuration

4-Wire RTD Configuration

Wiring Resistance Devices (Potentiometers)

Potentiometer wiring requires the same type of cable as that for the RTD described on page 8.
Potentiometers can be connected to the module as a 2-wire or 3-wire connection as shown on
page 11.

EXC 2

SENSE 2

RTN 2

NC

Belden 83503 or 9533 Shielded Cable

Cable Shield (to Ground)

RTD EXC

Sense

RTD EXC

Return

Sense

Return

EXC 2

SENSE 2

RTN 2

NC

Belden 83503 or 9533 Shielded Cable
Leave one sensor wire open.

Cable Shield (to Ground)

RTD EXC

Return

RTD EXC

Return

Sense

Sense