APC Battery Management System User Manual download pdf (Page 32)

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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

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