AEG UPS 10 kVA User Manual page 44

44
Alarm A5 DC VOLTAGE FAULT
Description The measured DC voltage is out of tolerance.
The battery has reached the discharge voltage due
•
Possible
to a power failure.
causes
Measuring circuit failure.
•
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
Solutions
indicated procedures.
4) Restart the device.
5) If the alarm persists, contact our Technical Support
Service.
Alarm A6 BATTERY IN TEST
The rectifier voltage is reduced to start a short controlled
Description
discharge of the battery.
A battery test has been started automatically (if set), or
Possible
•
causes
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
Battery isolator open.
•
causes
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
Solutions
of the isolator and the auxiliary terminals of the UPS
(if provided).
4) If the alarm persists, contact our Technical Support
Service.
OMD94016 REV. C