GE Industrial Solutions GPS 4812_24 - Manual (Page 116)

Galaxy Power System 4812/24
14 - 4 Troubleshooting Vector Systems Issue 9 Januray 2008
AC Alarms
Table 14-A: AC Alarms
(See Figure 12-8)
Controller
Alarm
Status
Vector
Controller Display
Other
Indication(s)
Possible Problem(s) Possible Solution(s)
Major MULTIPLE AC
FAIL
ACF on
rectifier
display Rectifier(s) not
receiving ac power:
•AC input circuit
breaker has operated.
•AC input voltage is out
of range.
•Internal rectifier failure
1. Verify that ac circuit breaker is
closed; close circuit breaker if
operated.
2. If the problem is not corrected,
replace the rectifier(s).
Minor ac failure ACF on
rectifier
display Rectifier not receiving
ac power:
•AC input circuit
breaker has operated.
•AC input voltage is out
of range.
•Internal rectifier failure
1. Verify that ac circuit breaker is
closed; close circuit breaker if
operated.
2. If the problem is not corrected,
replace the rectifier.
Minor phase failure PF on
rectifier
display Phase failure:
•Rectifier high voltage
shutdown
•External phase
imbalance or failure
•Internal rectifier failure
1. Toggle the ON/STBY switch
into the STBY position and
then back into the ON position.
2. If the problem is not corrected,
replace the rectifier.