Table 1: Termination Details
Termination Diagrams
Type of
Input/Output
Type of Field Device
UO
4–20 mA Output to Actuator
UO
Analog Output (Current)
UO
4–20 mA Output to Actuator
Terminal Wiring Guidelines,
Functions, Ratings, and
Requirements
Input and Output Wiring Guidelines
Table 2
provides information and guidelines about the
functions, ratings, and requirements for the controller
input and output terminals; and references guidelines for
determining proper wire sizes and cable lengths.
In addition to the wiring guidelines in
Table 2
, observe
these guidelines when wiring controller inputs and
outputs:
•
Run
all
low-voltage wiring and cables separate from
high-voltage wiring.
•
All input and output cables, regardless of wire size or
number of wires, should consist of stranded, insulated,
and twisted copper wires.
•
Shielded cable is not required for input or output
cables.
•
Shielded cable is recommended for input and output
cables that are exposed to high electromagnetic or
radio frequency noise.
•
Inputs/outputs with cables less than 30 m (100 ft)
typically do not require an offset in the software setup.
Cable runs over 30 m (100 ft) may require an offset
in the input/output software setup.
9
FX-PCX37 Expansion Input/Output Module Installation Instructions
