Rockwell Automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I/O Combination Module User Manual

Page 39

Advertising
background image

Publication 1769-UM008A-EN-P - November 2001

Installation and Wiring 3-17

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,
the cable shields should be grounded via a 0.1 µF capacitor at
the end using the data. In other words, for analog inputs, the
cable shield should be grounded via the 0.1 µF capacitor at the
analog module end. For analog outputs, the cable shield should
be grounded via a 0.1 µF capacitor at the load end.

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 as shown in

Analog Input Wiring on page 3-16 and Analog Output Wiring on
page 3-21.
Connect the other end of the cable to the analog
input or output device.

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

ATTENTION

!

Be careful when stripping wires. Wire fragments
that fall into a module could cause damage at
power up.

Advertising