AEG UPS 10 kVA User Manual page 46

46
Alarm A12 STOP TIMEOUT SC
Inverter shutdown due to an extended short-circuit during a
Description power failure, or due to an overcurrent on the inverter
bridge input.
Short-circuit on the loads during a power failure.
•
Possible
Inverter bridge fault.
•
causes
Temporary current peak.
•
1) Reset the system.
Solutions 2) If the alarm persists, contact our Technical Support
Service.
Alarm A13 INV OUT OF TOL
Description The inverter voltage or frequency is out of tolerance.
Inverter shutdown due to an alarm.
Possible
•
causes
Inverter failure.
•
1) Check which alarms are present and carry out the
indicated procedures.
Solutions
2) If the alarm persists, contact our Technical Support
Service.
Alarm A14 BYPASS WR SEQ
Description The phase rotation of the bypass line is wrong.
Possible
Wrong connection of power cables.
•
causes
1) Check the phase rotation.
Solutions 2) If the alarm persists, contact our Technical Support
Service.
Alarm A15 BYPASS FAULT
The voltage or frequency of the bypass line is out of
Description
tolerance.
Bypass line instability or failure.
Possible
•
causes
Wrong phase rotation.
•
1) Check the connections to the mains.
2) Check the stability of mains voltage.
Solutions
3) If the alarm persists, contact our Technical Support
Service.
OMD94016 REV. C