LEGRAND KEOR HPE Manuel De Fonctionnement page 219

Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
60 OMP06263 REV. B
UPS user manual
Manuel de l'utilisateur de l'ASI
Utilizzo dell'UPS
A44 INVERTER DESATURATION
The inverter is blocked due to the operation of the desaturation sensor
of the IGBT drivers.
 Inverter bridge fault.
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
A45 HIGH TEMPERATURE SSW
High temperature of the heat sink on the static switch.
 Fault of the heat sink cooling fans.
 The room temperature or cooling air temperature is too high.
1. Check the fans operation.
2. Clean the ventilation grids and the air filters, if any.
3. Check the air conditioning system (if present).
4. If the alarm persists, contact our Technical Support Service.
A46 LOST OF REDUNDANCY
This alarm is only active on PARALLEL systems. Continuity is not
ensured in the event of a fault on one of the UPS units.
 The total load is higher than the maximum expected value.
 Possible failure on the measuring circuit.
1. Check the load fed by the system.
2. If the alarm persists, contact our Technical Support Service.
A47 PEAK BATTERY OVER CURRENT
The battery limitation current over the limits.
 The UPS detected the battery limitation current out of limits and
switch off the inverter, booster and disconnected the battery from
the UPS.
1. Check the current sensor.
2. Check the battery blocks.
3. If the alarm persists, contact our Technical Support Service.