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USER’S GUIDE
Battery Management System
24
Charger alarms.
Battery alarms.
Category Details Diagnostics
String Voltages The voltage of a battery
string is above or below
the threshold.
Problem: High or low string voltage
indicates that the string charger may
be defective or improperly adjusted. If
uncorrected, this condition can cause
permanent damage to the batteries.
Response: Adjust the DC string-
charging voltage to the proper setting.
String Current The BMS has detected a
sufficient flow in the
discharge direction to
indicate a loss of the
charger value.
Investigate the loss of power to the
charger and restore it as soon as
possible.
Ripple Current The detected ripple
current exceeds the alarm
threshold.
Investiage the source of high AC
current in the charger output.
Category Details Diagnostics
Discharge
Tes t
The voltage of individual
batteries listed in the alarm
text dropped below the
configured minimum
threshold during the last
discharge.
Problem: Recorded voltage below the
minimum threshold indicates a battery
that will not perform adequately in
providing system backup in relation to
others in the same string.
Response: Replace failed batteries
immediately so that system backup time
is not reduced.