GE Industrial Solutions GPS 4812_24 - Manual (Page 31)

Galaxy Power System 4812/24
Issue 9 Januray 2008 Galaxy Controllers 3 - 3
Galaxy Millennium Controller, continued
LEDs Two rows of LEDs show the source and severity of various alarms. An
alarm lights one status LED and one or more alarm LEDs. If more than
one alarm LED lights, the status LED that lights will indicate the most
severe active alarm.
• The first row includes four LEDs, labeled Alarm Status. They
indicate the severity of the reported alarm:
Critical
Major
Minor
Normal
The Battery on Discharge LED is also in this row.
• The second row has seven LEDs, labeled Equipment Status. They
indicate the source of the alarm:
AC System
Battery
Controller
Distribution
Rectifier
Remote Modules
The Modem LED illuminates when the internal modem is in use.
Test Jacks A pair of test jacks allows direct measurement of the dc bus sense
voltage being monitored by the controller.