Wärtsilä JOVYSTAR COMPACT M
BAX 5480
- 77 -
Alarm
A5
DC VOLTAGE FAULT
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 DISCHARGE
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 AUT 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.
Alarm
A10
BATTERY FAULT
Description
Fault following a battery test.
Possible
causes
Battery fault.
Solutions
1. Check the battery.
2. Reset the system.
3. If the alarm persists, contact our Technical Support Service.
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.