Wärtsilä JOVYSTAR HP 200-800kVA BAX 4640 E
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Alarm
A1 MAINS FAILURE
Description
The voltage or frequency of the input line is 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 PHASE ROTATION NOT CORRECT
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 RECTIFIER OFF
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 RECTIFIER FAILURE
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.
Alarm
A5 WRONG DC VOLTAGE
Description
The measured DC voltage is out of tolerance.
Possible
causes
The battery has reached the discharge voltage due to a power failure.
Measuring circuit failure.
Solutions
1. Check the actual value of the measured DC voltage.
2. In case of mains failure, wait for the AC voltage to be restored.
3. Check which alarms are present and carry out the indicated procedures.
4. Restart the device.
5. If the alarm persists, contact our Technical Support Service.
Alarm
A6 BATTERY IN TEST
Description
The rectifier voltage is reduced to start a short controlled discharge of the battery.
Possible
causes
A battery test has been started automatically (if set), or manually by the user.
Solutions
1. Wait for the test to end, and check possible battery faults.
Alarm
A7 BCB OPEN
Description
The battery isolator is open.
Possible
causes
Battery isolator open.
Solutions
1. Check the status of the battery isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. Check the connection between the auxiliary contact of the isolator and the auxiliary terminals of the UPS (if provided).
4. If the alarm persists, contact our Technical Support Service.
Alarm
A8 BATTERY DISCHARGING
Description
The battery is discharging.
Possible
causes
The battery is discharging due to a mains failure.
Rectifier 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
A9 BATTERY AUTONOMY END
Description
The battery has reached the pre-alarm discharge level.
Possible
causes
The battery is discharging due to a mains failure.
Rectifier failure.
Solutions
1. Check which alarms are present and carry out the indicated procedures.
2. If the alarm persists, contact our Technical Support Service.
Summary of Contents for JOVYSTAR HP 200 kVA
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Page 29: ...W rtsil JOVYSTAR HP 200 800kVA BAX 4640 E 29 Terminal board 500 800 kVA...
