Rockwell Automation Allen-Bradley CENTERLINE 2500, Instruction Manual

Page: 83 / 88

1 Publication 2500-IN001A-EN-P—May 2006
Chapter
11
Maintenance After Fault Condition
Guidelines
The opening of the main switch (such as fuses or circuit breakers) in a properly
coordinated motor circuit is an indication of a fault condition in excess of
operating load, and must be corrected.
Fault conditions can cause damage to control equipment. When a fault occurs,
de-energize the MCC, investigate the cause of the fault, and thoroughly inspect
equipment. Make necessary repairs to units, components and structures as
required, prior to re-commissioning the equipment. Replacement components
must be suitably rated for the application.
After a fault, complete the “Pre-Commissioning Checklist” on page 5-2 and
perform an insulation resistance (megger) test before re-energizing the
equipment.
ATTENTION
Disconnect all power sources to the MCC before
diagnosing the cause of a fault condition. Follow local
codes and guidelines in addition to the requirements of EN
50110.