31
Bat over voltage
Battery voltage is
higher than normal
Check if the battery quantity is right
Over charged
Battery is over charged
The UPS will turn off the charger until
the battery voltage is normal
Over load
Over load
Check the loads and remove some
non-critical loads;
Check if some loads are failed
Charger fail
The charger fails
Consult dealer
Amb NTC abnormal
The ambient
temperature is too high
Check the environment ventilation
Over temperature
Inside temperature of
UPS is too high
Check the ventilation of UPS and the
ambient temperature
Cable disconnect
The parallel cable is
disconnected
Check the parallel cable
Cable loss
The parallel cable is
disconnected
Check the parallel cable
Line differ
The mains input of
some UPS is
disconnected
Check the building wiring and input
cable;
Check if the input breaker is
closed ;Ensure the UPS are
connected to same input source
Work Mode differ
Different power
strategy setting in
parallel system
The UPS with different power
strategy setting (Ex. one Line mode
and one Converter mode) are
forbidden to parallel
Battery differ
The battery packs of
some UPS are
disconnected
Check if all the battery pack is
connected
