TM 5-3895-374-24-1
Chapter 6
Wiring Your I/O Modules
Preparing Your Wiring Layout Careful wire routing within the enclosure helps to cut down electrical noise
between I/O lines Follow these rules for routing your wires.
•
Route incoming power to the controller by a separate path from wiring to
I/O devices Where paths must cross, their intersection should be
perpendicular.
Important:
Do not run signal or communications wiring and power wiring in
the same conduit.
•
If wiring ducts are used, allow for at least two inches between I/O wiring
ducts and the controller. If the terminal strips are used for I/O wring, allow
for at least two inches between the terminal strips and the controller.
•
Segregate I/O wiring by signal type. Bundle wiring with similar electrical
characteristics together.
Wires with different signal characteristics should be routed into the enclosure
by separate paths.
ATTENTION: If the controller is being installed within a potentially
hazardous environment (that is, Class I, Division 2), all wiring must
comply with the requirements stated in the National Electrical Code
501-4 (b).
(page 3-420)
