Rockwell Automation 1772-LV,D17726.6.1 A and I MNL MINI-PLC-2/15 PROCESSO - Manual (Page 45)

Assembly and Installation
Chapter 3
3Ć25
Before actually running the signal wiring, refer to the wiring guidelines as
outlined under “Field Wiring Considerations” and “Field Wiring Guidelines,”
Section titled Field Wiring Considerations and Field Wiring Guidelines. Wiring
installation will be discussed as it related to components.
WARNING: To avoid injury to personnel and damage to
equipment, disconnect all AC and DC power to the Controller
before attempting any wiring installation within the enclosure.
Each wire that connects to an I/O device, power source or common should be
appropriately labeled. Tape, shrink-tubing, other dependable means of labeling
can be used. The five-digit address is a convenient label for I/O wiring.
In addition to labeling, wire insulation color may also be used to distinguish the
type of wiring signals. DC I/O signal wires may be blue in color and AC I/O
signal wires may be red. Local electrical codes may specify insulation colors
for various types of signals.
It is strongly recommended that the system installer document all I/o
connections to the I/O Racks on a Connection Diagram Addressing Form
(Publication 5039) (Figure 3.26). A copy of these completed forms should
remain in the enclosure to serve as a wiring guide should troubleshooting the
system become necessary.
The user may also want to identify the devices connected to the field wiring arm
terminals and the status indicators on the I/O Module. Space is available next to
the terminals and the indicators for labeling (Figure 3.27). The 5- digit terminal
address or the name of the I/O device can be used for labeling.
Wiring for each I/O Module should be bundled together within the wiring ducts
as outlined under “FIELD WIRING GUIDELINES.”
Wiring/Cabling Installation