Rockwell Automation 1407-CGCM Combination Generator Control Module - Manual (Page 113)

Rockwell Automation Publication 1407-UM001G-EN-P - April 2013 113
CGCM Unit Startup Chapter 5
Under-frequency (81U)
Follow these steps to test that the Under-frequency function is working properly.
1. Connect a suitable load to the excitation output terminals of the CGCM
unit.
2. Enable excitation in FCR mode.
3. Clear the EngineIdle tag in the controller tag database.
4. Apply simulated generator voltage signals by using the test voltage source.
5. Adjust the simulated generator frequency below the under-frequency
setpoint.
6. Verify that an under-frequency alarm is annunciated following the
expected delay.
Reverse Power (32R)
Follow these steps to test that the Reverse Power function is working properly.
1. Apply simulated generator voltage and current signals by using the test
current and voltage source.
2. Adjust the simulated real power until it exceeds the reverse power setting
in the negative direction.
3. Verify that a generator reverse kW alarm is annunciated following the
expected delay.
Rotating Diode Monitor
Test this function after the generator is operating.
See Diode Monitor set-up procedures on page 122 .