LEGRAND KEOR HPE 100 kVA Manuel De Fonctionnement page 200

Alarm A40
Description The system has detected a failure in the static inverter switch.
Possible
causes
Solutions
Alarm A41
Description The control is not able to regulate the rectifier output voltage precisely.
Possible
causes
Solutions
Alarm A42
Description This alarm can be activated by EEPROM setting only on systems with
COMMON BATTERY. The continuity is not guaranteed in case of failure of
one of the rectifiers.
Possible
causes
Solutions
Alarm A44
Description The inverter is blocked due to the operation of the desaturation sensor of
the IGBT drivers.
Possible
causes
Solutions
Alarm A45
Description High temperature of the heat sink on the static switch.
Possible
causes
Solutions
56 OMG38225 REV. F
UPS user manual
Manuel de l'utilisateur de l'ASI
Utilizzo dell'UPS
SSI FAULT
 Possible problems on the loads.
 Static switch fault.
1. Check the absorption of the loads and the presence of DC
components, if any, on AC current.
2. If the alarm persists, contact our Technical Support Service.
RECT ERROR LOOP
 Regulation system failure.
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
RECTFIER RED. LOST
 The total load exceeds the maximum allowed value.
 Possible failure on the measuring circuit.
1. Verify the load supplied by the system.
2. If the alarm persists contact our Technical Support Service.
DESATURATION (NOT AVAILABLE)
 Inverter bridge fault.
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
HIGH TEMPERATURE SSW
 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.