GE Industrial Solutions H2007001 G11 Series - Manual (Page 71)

Infinity D Power System Installation Guide: +24V Systems H2007001
Issue 2.0, June 4, 2009 71
Manual Contactor Control and Alarms
WARNING: If this is an operating plant with loads, skip this test.
Step Action
1.
Open the contactor by controller command (MENU > CONTROL / OPERATIONS >
DISCONNECTS).
2. Verify the controller reports a Contactor Open alarm.
3.
Close the contactor by controller command.
4.
Verify the alarms clear and the controller returns to Normal.
Automatic Contactor Control and Alarms
WARNING: If this is an operating plant with loads, skip this test.
Step Action
1.
Check the disconnect thresholds (MENU > CONTROL / OPERATIONS >
DISCONNECTS).
2.
Adjust the float voltage to a value less than this threshold (MENU > CONFIGURATION >
FLOAT SETTINGS > SET POINT).
3.
Disconnect the batteries in the plant.
4. Verify the battery disconnect opens and the controller reports a Contactor Open alarm.
5. Restore the plant voltage back to its original setting.
6. Verify the contactor closes.
5.
Verify the alarms clear and the controller returns to Normal.