UPS user manual
Manuel de l'utilisateur de l'UPS
Utilizzo dell’UPS
42
OMD10074 REV. C
8.2 TROUBLESHOOTING
Alarm
A1
MAINS FAULT
Description
The voltage or frequency of the input line are out of tolerance.
Possible
causes
Mains instability or failure.
Wrong phase rotation.
Solutions
1. Check the connections to the mains.
2. Check the stability of mains voltage.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A2
INPUT WRONG SEQ
Description
The phase rotation on the rectifier input line is wrong.
Possible
causes
Wrong connection of power cables.
Solutions
1. Check the phase rotation.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A3
BOOSTER STOPPED
Description
The rectifier has been temporarily disconnected and the inverter is fed
by the battery.
Possible
causes
Instability of the AC line voltage or frequency.
Possible fault in the rectifier control circuit.
Solutions
1. Check the parameters of the AC line voltage.
2. Restart the device.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A4
BOOSTER FAULT
Description
The rectifier has been disconnected due to an internal fault.
Possible
causes
Possible fault in the rectifier control circuit.
Solutions
1. Check which alarms are present and carry out the indicated
procedures.
2. Restart the device.
3. If the alarm persists, contact our Technical Support Service.
Summary of Contents for KEOR HP 100kVA
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