Rockwell Automation 2500 CENTERLINE Motor Control Centers Installation Manual User Manual
Page 72
72
Rockwell Automation Publication 2500-IN001C-EN-P - April 2014
Chapter 7
Commissioning
4.
Energize the MCC remote power source.
If the MCC has a main circuit breaker or disconnect switch that can be
operated from a remote location, energizing from the remote location is
strongly recommended.
If the MCC main circuit breaker or disconnect switch cannot be energized
from a remote location, follow the procedure below.
•
De-energize the remote power source
•
Close MCC main disconnect or circuit breaker switch.
•
Re-energize the MCC remote power source.
5.
Energize from the source of the system, working toward the loads.
Energize one unit at a time, beginning with control units then feeder units.
6.
Fully withdrawable units can be commissioned in the Test position.
This position helps allow control and network connections to be tested
without engaging three phase power.
Chapter 6, Install and Remove Units
for more information on
operating positions.
7.
After the disconnect devices have been closed, loads such as lighting
circuits, motor starters, and contactors can be energized.
a. When power factor correction capacitors are energized with the motor
windings and the start-up procedure requires that the respective motors
be jogged or inched, temporarily disconnect the power factor
correction capacitors. For more information on power factor capacitors
and MCC units, contact your local Rockwell Automation
Representative.
b. Verify that acceleration times are within application specifications.
8.
Verify meters, including voltmeters and ammeters, are working properly.
9.
Reset device settings that were adjusted during installation and
commissioning to appropriate operational settings.
For commissioning MCCs with the DeviceNet network and/or
IntelliCENTER software, refer to the CENTERLINE 2500 DeviceNet
Motor Control Centers Technical Data, publication
CENTERLINE 2500 Motor Control Centers with EtherNet/IP
Network Technical Data, publication
ATTENTION: Main switch handles should be operated with a firm,
direct motion into the closed (ON/I) position.
TIP
Excessive starting currents and/or acceleration times can cause inverse
time circuit breakers, power fuses, overload relays and other
components to overheat and/or shut down equipment.