GE Industrial Solutions GPS 4812_24 - Manual (Page 87)

Galaxy Power System 4812/24
Issue 9 Januray 2008 Troubleshooting Preparations 12 - 7
Reference Figures, continued
Millennium
Controller
Basic Controller
BSH (microprocessor board): After power up, or after a reset, the
green and yellow LEDs will both be lit while self diagnostics are in
progress (which will take about 10 seconds). If all diagnostics pass, the
yellow LED will extinguish and the green LED will remain lit. If a
failure is detected during diagnostics, the green LED will extinguish and
the yellow LED will remain lit.
If a failure occurs during normal operation, the green LED will
extinguish and the yellow LED will light.
Intelligent Controller
BSJ (microprocessor board): After power up, or after a reset, the green
and yellow LEDs will both be lit while self diagnostics are in progress
(which will take about 30 seconds). If all diagnostics pass, the yellow
LED will extinguish and the green LED will remain lit. If a failure is
detected during diagnostics, the green LED will extinguish and the
yellow LED will remain lit. If a terminal is attached to the local port
during diagnostics, the diagnostic messages will show which test failed.
If a failure occurs during normal operation, the green LED will
extinguish and the yellow LED will light.