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Wiring input devices to the module, Wiring input devices to the module -14 – Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module User Manual User Manual

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Publication 1746-UM003A-EN-P

2-14 Installation and Wiring

Wiring Input Devices to the Module

To wire your 1746-NR8 module, follow these steps as shown in the illustration
below:

1.

1.

1.

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

2.

2.

2.

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

16 inch) of insulation away to expose the end of the wire.

3.

3.

3.

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 rack.

4.

4.

4.

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

cable and apply shrink wrap.

5.

5.

5.

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

6.

6.

6.

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

Figure 2.5 Shielded Cable

Signal Wire

Signal Wire

Signal Wire

Signal Wire

Drain Wire

Foil Shield

Signal Wire

Signal Wire

Signal Wire

Drain Wire

Foil Shield

Signal Wire

Signal Wire

Signal Wire

(See step 3.)

(See step 4.)

2-Conductor Shielded Cable

3-Conductor Shielded Cable