Rockwell Automation 1746-INT4 Thermocouple/MV Isolated/ User Manual - Manual (Page 32)

Publication 1746-UM614B-EN-P - September 2007
32 Install and Wire the Module
Prepare and Wire the Cables
Follow these steps to prepare and connect cable leads and drain
wires.
1. At each end of the cable, strip some casing to expose individual
wires.
2. Trim signal wires to 12.5 cm (5 in.) lengths beyond the cable
casing and strip about 4.76 mm (3/16 in.) of insulation to expose
the ends of the wires.
3. At the module-end of the cables:
– extract the drain wire and signal wires.
– remove the foil shield.
– bundle the input cables with a cable strap.
4. Connect drain wires together and solder them to a 9.5 mm
(3/8 in.) wire braid, 30.5 cm (12 in.) long, keeping drain wires
as short as possible.
5. Connect the 9.5 mm (3/8 in.) wire braid to the nearest chassis
mounting bolt.
6. Connect the signal wires of each channel to the terminal block.
IMPORTANT
See the Cable Preparation and Connections to Minimize
Electrical Noise Interference illustration on page 33 for
more information about the cables.
IMPORTANT
Only after verifying that your connections are correct for each
channel, trim the lengths to keep them short. Avoid cutting
leads too short.
Drain Wire
(At the module-end of the cable, extract
the drain wire but remove the foil shield.)
Signal Wires
Signal Wires
(Remove foil shield and drain wire
from sensor-end of the cable.)
Cable