UPS user manual
Utilizzo dell’UPS
42 OMS02083 REV. A
Alarm
A13 INV OUT OF TOL
Description The inverter voltage or frequency are out of tolerance.
Possible
causes
Inverter shutdown due to an alarm.
Inverter failure.
Solutions 1. Check which alarms are present and carry out the indicated
procedures.
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
causes
Wrong connection of power cables.
Solutions 1. Check the phase rotation.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A15 BYPASS FAULT
Description The voltage or frequency of the bypass line are out of tolerance.
Possible
causes
Bypass line 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
A16 BYPASS --> LOAD
Description The load is fed by the bypass line.
Possible
causes
Temporary changeover due to inverter failure.
Solutions 1. Verify the inverter status and check whether other alarms are
present.
2. If the alarm persists, contact our Technical Support Service.
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