Borri E2001 COMPACT - Page 46

Front panel AC-UPS GD 128x64
28 OMX76014 Rev. A
5.2 ALARMS: TROUBLESHOOTING
Alarm
A1
MAINS FAULT
Description
The voltage or frequency of the input line are out of tolerance.
Possible
causes
 Mains instability or fault.
 Wrong rotation.
Solutions
1. Check connections to the electrical mains.
2. Check stability of the mains voltage.
3. If the alarm persists, contact our technical support service.
Alarm
A2
RECTIFIER FUSES BLOWN
Description
Rectifier bridge input fuses fault.
Possible
causes
 Output short circuit.
 Overload.
Solutions
1. Contact our technical support service.
Alarm
A3
RECTIFIER HIGH TEMPERATURE
Description The temperature of the rectifier heat sink exceeds the higher
threshold value.
Possible
causes
 Cooling system failure.
 Rectifier bridge irregular conduit.
Solutions
1. Check the conduit conditions on all three input phases.
2. Check the fans and the cooling system are working properly.
3. If the alarm persists, contact our technical support service.
Alarm
A4
RECTIFIER OVERLOAD
Description The current sensor has detected rectifier output overload. If the
alarm persists, thermal image protection is activated (alarm A20), if
enabled).
Possible
causes
 Output overload.
Solutions
1. Check the charges connected in output of the rectifier.
2. Contact our technical support service.
Alarm
A5
MAXIMUM RECTIFIER VOLTAGE
Description The direct voltage measured has surpassed the higher threshold
value.
Possible
causes
 Circuit fault of control or measurement.
Solutions
1. Check the actual value of the direct voltage measured and
reset the device.
2. If the alarm persists, contact our technical support service.