Rockwell Automation 1770 Industrial Automation Wiring and Grounding Guidelines - Manual

Publication 1770-4.1 – February 1998
Industrial Automation Wiring and
Grounding Guidelines
This publication gives you general guidelines for installing an
Allen-Bradley industrial automation system that may include
programmable controllers, industrial computers, operator-interface
terminals, display devices, and communication networks. While
these guidelines apply to the majority of installations, certain
electrically harsh environments may require additional
precautions.
Use these guidelines as a tool for helping avoid potential
electromagnetic interference (emi) and transient emi that could cause
problems such as “adapter faults, rack faults, communication faults,”
etc. These guidelines are not intended to supersede local electrical
codes.
This publication is organized into the following sections:
•
Raceway layout considerations
•
Mounting, bonding, and grounding
•
Power distribution
•
Surge-suppression
•
Ferrite beads
•
Enclosure lighting
•
Avoiding unintentional momentary turn-on of outputs
•
Related publications
Application Data
Purpose