Rockwell Automation 1902 Syncpro II - Manual (Page 36)

38 Rockwell Automation Publication 1902-IN001B-EN-E - April 2013
Chapter 4 Setup and Commissioning
6. After completing the actions in Step 5, if the equipment appears to be
operating in the correct manner, then the leads can be reconnected to the
FCR coil which was removed in Step 3.
7. The motor can now be normally started. Once the motor has
synchronized, a good check is to vary the DC excitation. Verify that when
the DC current to the field is reduced, the motor power factor becomes
more lagging and if increased, the motor power factor becomes more
leading. Verify that the MicroLogix is getting all the inputs according to
the circuit diagram.
ATTENTION: To avoid damage to the motor, do not allow the motor to run
without synchronizing (at 95% speed) for longer than required to perform this
test. Most motors are only capable of running for about 60 seconds at 95%
speed without synchronizing.