Wiring input devices to the nr8 module – Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module/ Instructions User Manual

Page 15

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SLC 500™ RTD/Resistance Input Module 15

Publication 1746-IN007C-EN-P - December 2002

Wiring Input Devices to the NR8 Module

To wire your NR8 module, follow these steps.

1. At each end of the cable, strip some casing to expose the individual wires.

2. Trim the signal wires to 5.08-cm (2-in.) lengths. Strip about 4.76 mm (3/16

in.) of insulation away to expose the end of the wire.

3. At one end of the cable twist the drain wire and foil shield together, bend

them away from the cable, and apply shrink wrap. Then earth ground at the
frame ground of the chassis.

4. At the other end of the cable, cut the drain wire and foil shield back to the

cable and apply shrink wrap.

5. Connect the signal wires to the 1746-NR8 terminal block and the input.

6. Repeat steps 1 through 5 for each channel on the 1746-NR8 module.

2-Conductor Shielded Cable

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Drain Wire

Drain Wire

Foil Shield

Foil Shield

3-Conductor Shielded Cable

(See Step 4.)

(See Step 4.)

(See step 3.)

(See step 3.)

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