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Wärtsilä JOVYSTAR COMPACT S
BAX 5452
-
39 -
Alarm
A11 SHORT-CIRCUIT
Description
The current sensor has detected a short-circuit at the output.
Possible causes
Load problem.
Measuring circuit failure.
Solutions
1. Check the loads connected to the UPS output.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A12 SHORT-CIRCUIT TIMEOUT STOP
Description
Inverter shutdown due to an extended short-circuit during a power failure, or due to an over current on the inverter
bridge input.
Possible causes
Short-circuit on the loads during a power failure.
Inverter bridge fault.
Temporary current peak.
Solutions
1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
Alarm
A13 INVERTER OUT OF TOLERANCE
Description
The inverter voltage or frequency is 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 PHASE ROTATION NOT CORRECT
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 FAILURE
Description
The voltage or frequency of the bypass line is 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 FEEDS LOAD (Only in Online-mode)
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.
Alarm
A17 RE-TRANSFER BLOCKED
Description
The load is blocked on the bypass line.
Possible causes Very frequent changeovers due to load in-rush currents.
Static switch problems.
Solutions
1. Reset the system.
2. Check the in-rush currents of the loads.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A18 MBCB CLOSED
Description
The manual bypass isolator is closed.
Possible causes Manual bypass isolator closed.
Solutions
1. Check the status of the manual bypass isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A19 OCB OPEN
Description
The output isolator is open.
Possible causes Output isolator open.
Solutions
1. Check the status of the output isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A20 OVERLOAD
Description
The current sensor has detected an overload at the output. If the alarm persists, the thermal image protection will be
activated (alarm A21).
Possible causes Output overload.
Measuring circuit failure.
Solutions
1. Check the loads connected to the UPS output.
2. Contact our Technical Support Service.