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USER’S GUIDE
Battery Management System
25
Management Controller alarms.
Charge Test When the Battery
Management System applied
a test current, the batteries
listed in the alarm message
showed a higher than
acceptable percentage
deviation from the previous
“benchmarked” values (which
are reset after any
discharge).
Problem: A percentage deviation
outside the acceptable range indicates
unexplained changes that indicate the
need to verify possible problems with the
battery.
Response: Identify the listed batteries
immediately so that system backup time
is not reduced. Test and verify status of
the identified batteries immediately.
Pilot
Temperature
s
Sampling of the surface
temperature of one battery in
the string showed a
temperature above the
configured threshold.
Default:
95° F (35° C) (high
threshold).
Problem: A high temperature alarm may
indicate an overheated (overcharged)
battery, usually caused by a faulty
charger.
Response: If uncorrected, this condition
can cause permanent damage to the
batteries. Replace failed batteries.
Category Details Diagnostics
Blown
Connection
Fuse
The connections between the
Management Controller and
the batteries are open.
Problem: One or more fuses or wires
are open.
Response: Replace the fuse or wire
connection in the location indicated in
the event log.
Missing or
Defective
Sensors
Not all sensors are present
and functional.
Problem: The system operation is
not reliable without sensor
information.
Response: Connect or replace the
sensor indicated in the event log.
Category Details Diagnostics