Rockwell Automation 1762-Lxxxx MicroLogix 1200 Programmable Controllers - Manual (Page 35)

1 Publication 1762-UM001G-EN-P - March 2011
Chapter
3
Wire Your Controller
This chapter describes how to wire your controller and expansion I/O. Topics
include:
• wire requirements
• using surge suppressors
• grounding the controller
• wiring diagrams
• sinking and sourcing wiring diagrams
• controller I/O wiring
• expansion I/O wiring
Wire Requirements
• Allow for at least 50 mm (2 in) between I/O wiring ducts or terminal
strips and the controller.
• Route incoming power to the controller by a path separate from the
device wiring. Where paths must cross, their intersection should be
perpendicular.
ATTENTION
Before you install and wire any device, disconnect
power to the controller system.
ATTENTION
Calculate the maximum possible current in each
power and common wire. Observe all electrical
codes dictating the maximum current allowable for
each wire size. Current above the maximum ratings
may cause wiring to overheat, which can cause
damage.
United States Only: If the controller is installed
within a potentially hazardous environment, all
wiring must comply with the requirements stated in
the National Electrical Code 501-4 (b).