POWER
Issue 1 May 2002
8-1309555-233-143
8FAIL
NOTE:
For a Global AC MCC (J58890CH) use the procedures outlined in step
3.
There is a reserve power fault. A problem exists with the battery charger or,
less likely, the batteries. Also, this fault could be generated if the charger is
switched off or a battery is unplugged.
1. Replace the battery charger and the battery. The fault should disappear.
!
WARNING:
Always turn off the battery charger before replacing the
batteries.
2. Rerun the test. If the test still fails, then the PN’s MAINT (Maintenance)
circuit pack could be reporting this condition incorrectly. Resolve every
alarm on this MO, and rerun the test. There are failures that can occur on
the PN’s Maintenance circuit pack that will not be detected by their
respective maintenance, but which will cause many, if not every,
environment test to fail. If many environment tests are failing, the suspect
circuit pack, depending on the system configuration, should be replaced
and the test rerun.
3. Procedures for a Global MCC (J58890CH):
a. Look to see if any “red” LEDs are “on” on any of the rectifier modules
or the BIU (Battery Interface Unit) located in the Power Distribution
Unit (J58890CH).
b. If the BTW (Battery Temp Warning) LED on the BIU is “on” check the
batteries for a over temp condition
(a)
if temp is normal
(a)
replace the
BIU, If the test still fails replace the battery in a small battery system.
For a large battery system escalate the problem.
c. If the BNA (Battery Not Available) LED is “on” check the battery
connections including connector J20.
More information continues.
Table 8-524. Test #5 Battery and Battery Charger Query Test — Continued
Error
Code
Te s t
Result Description / Recommendation
Continued on next page
To Next Page
Loading...
