Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 116)

116 Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
Chapter 5 CGCM Unit Startup
5. Verify that the configured soft start occurs and the generator voltage
increases to near the specified rated output voltage.
6. Adjust the FCR setpoint and verify that the metered field current responds
as desired.
7. Adjust gains as required to achieve the desired result.
Verify Metered Voltages and Phase Rotation
Follow these steps to verify metered voltages and phase rotation.
1. Observe the reported phase rotation for the generator.
2. Confirm that the metered rotation matches the configured rotation and
that no phase rotation fault exists.
3. Measure the VT inputs at the CGCM unit’s VT input terminals and verify
that they are correct for the selected wiring configuration.
4. Verify that the phase, line, and average voltages reported in the CGCM
unit’s controller tags are as expected for the selected configuration.
Verify and Adjust AVR Mode Operation (constant voltage)
Follow these steps to verify and adjust the AVR mode operation.
1. Adjust the AVR setpoint to the generator rated voltage.
2. Select Constant Voltage mode by disabling reactive compensation (droop).
3. Select the AVR mode of operation.
4. Monitor the generator exciter field current and generator voltage.
5. Verify that the metered generator voltage is near the rated output voltage
setpoint entered previously.
6. Adjust the AVR setpoint and verify the metered voltage responds as
desired.
Adjust gains as required to achieve the desired result.
7. Disable excitation and allow the generator voltage to collapse.
8. With the AVR mode of operation still selected, enable excitation and
verify the configured soft start is performed and the generator voltage
increases to the AVR setpoint.