Lucent Technologies Galaxy Power System 4804AP H569-450
Issue 1 June 2000
Troubleshooting Millennium Systems 14 - 3
AC Alarm LED
Table 14-A: AC Alarms
(See Figure 13-8)
Controller
LED
Controller
Alarm
Status
Millennium
Controller Display
Other
Indication(s)
Possible
Problem(s)
Possible Solution(s)
AC
MIN
AC Fail
ACF on
rectifier
display
Rectifier is 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.
AC
MIN
Engine Transfer
Timeout
Engine may
have alarm.
Remote engine
or connection
to engine has
failed.
Call your local RTAC
representative.
AC
MIN
Phase Alarm
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.
