Lucent Technologies Lineage
®
2000 ECS/GPS Battery Plant J85500G-2
5 - 2 Maintenance Issue 6 May 1999
load. All fuse blocks in the battery plant have indicating fuses
that allow a red element to pop out when a fuse blows (opens).
If a breaker has tripped off or a fuse blows, the overcurrent
problem should be cleared before restoring power to the load by
resetting the breaker or replacing the fuse. See
“Troubleshooting,” below, for information on tripped breakers
or blown fuses.
Troubleshooting Table 5-A provides a list of observable trouble conditions, their
possible causes and the necessary corrective action for each
cause. The table is organized by the subsystem in which the
trouble is observed.
Open
Distribution
Breaker or Fuse
A distribution breaker or fuse which should be closed may be in
the open position for one of three reasons:
Table 5-A: Troubleshooting
Observed Condition Probable Cause Procedure
Controller Subsystem
Red or yellow LEDs lit
No LEDs or Display lit
Meter inaccuracy
Office alarms issued
False alarms issued
Blown fuse on LVD/Fuse board
See “Troubleshooting” in Controller Manual
Rectifier Subsystem
Red or yellow LEDs lit
No LEDs or Display lit
No output/low output
Oscillation
Open output breaker
See “Troubleshooting” in Rectifier Manual
DC Distribution Subsystem
Open distribution breaker or fuse
a. Breaker manually turned
off
b. overcurrent trip (open)
c. breaker or fuse failure
Open distribution
breaker or fuse, below
“LVD OPEN” LED lit
a. failed LVD contactor
b. low voltage
c. faulty wiring
d. LVD circuit failure
Red LVD OPEN LED
lit, below
“LVD FAIL” LED lit
a. low voltage
b. LVD circuit failure
Yellow LVD FAIL LED
lit, below
To Next Page
Loading...
Need help?
General
