Rockwell Automation 1769-OF4VI Compact I/O Isolated Analog Modules - Manual (Page 34)

Publication 1769-UM014B-EN-P - May 2010
2-18 Installation and Wiring
Figure 2.8 Belden 8761 Wire
To wire your 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 2-inch lengths. Strip about 5 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.
Under normal conditions, this drain wire and shield junction must be
connected to earth ground, via a panel or DIN rail mounting screw at
the analog I/O module end. Keep the length of the drain wire as short
as possible.
In environments where high frequency noise may be present, it may be
necessary to ground the cable shields to earth at the module end via a
0.1 µF capacitor at the sensor end for analog inputs and at the load end
for analog outputs.
4. At the other end of the cable, cut the drain wire and foil shield back to
the cable.
5. Connect the signal wires to the terminal block.
Refer to Analog Input Module Wiring on page 2-19 and Analog Output
Modules Wiring on page 2-21.
6. Connect the other end of the cable to the analog input or output device.
7. Repeat steps 1 to 5 for each channel on the module.
ATTENTION
Be careful when stripping wires. Wire fragments that
fall into a module could cause damage when you
cycle power.
Cable
Signal Wire
Signal Wire
Drain Wire
Foil Shield Signal Wire
Signal Wire
Cut foil shield
and drain wire.