LEGRAND KEOR HPE 60 kVA Operating Manual page 1272

TROUBLESHOOTING
Alarm A1
Description The voltage or frequency of the input line are out of tolerance.
 Mains instability or failure.
Possible
causes
 Wrong phase rotation.
Solutions
Alarm A2
Description The phase rotation on the rectifier input line is wrong.
 Wrong connection of power cables.
Possible
causes
Solutions
Alarm A3
Description The rectifier has been temporarily disconnected and the inverter is fed by the
battery.
 Instability of the AC line voltage or frequency.
Possible
causes
 Possible fault in the rectifier control circuit.
Solutions
Alarm A4
Description The rectifier has been disconnected due to an internal fault.
 Possible fault in the rectifier control circuit.
Possible
causes
Solutions
procedures.
Manuel de l'utilisateur de l'ASI
MAINS FAULT
Check the connections to the mains.
Check the stability of mains voltage.
If the alarm persists, contact our Technical Support Service.
INPUT WRONG SEQ
Check the phase rotation.
If the alarm persists, contact our Technical Support Service.
BOOSTER STOPPED
Check the parameters of the AC line voltage.
Restart the device.
If the alarm persists, contact our Technical Support Service.
BOOSTER FAULT
Check which alarms are present and carry out the indicated
Restart the device.
If the alarm persists, contact our Technical Support Service.
UPS user manual
Utilizzo dell'UPS
OMW07104 REV.A 47