Rockwell Automation Allen-Bradley 1769-IF4, Руководство пользователя

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Publication 1769-UM002B-EN-P - July 2005
2-18 Installation and Wiring
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 3/16 inch (5 mm) 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 as shown in Analog Input
Modules Wiring on page 2-19 and Analog Output Modules Wiring on
page 2-24. 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.
Terminal Door Label
A removable, write-on label is provided with the module. Remove the label
from the door, mark the identification of each terminal with permanent ink,
and slide the label back into the door. Your markings (ID tag) will be visible
when the module door is closed.
ATTENTION
Be careful when stripping wires. Wire fragments that
fall into a module could cause damage at power up.