AEG UPS 10 kVA User Manual page 52

52
Alarm A36 DC FASTSHUTDOWN
Inverter shutdown due to the operation of the protection
Description
sensor as a result of sudden DC voltage variations.
Possible
Battery fault.
•
causes
1) Check the battery.
2) Reset the system.
Solutions
3) If the alarm persists, contact our Technical Support
Service.
Alarm A38 INV LOAD
The load is fed by the inverter. This alarm is active for UPS
Description systems in "ECO" mode, where the preferential supply is
from the bypass line.
Possible
Temporary changeover due to bypass line failure.
•
causes
1) Verify the status of the bypass line and check whether
other alarms are present.
Solutions
2) If the alarm persists, contact our Technical Support
Service.
Alarm A39 INV ERROR LOOP
The control is not able to regulate the inverter voltage
Description
precisely.
Possible
Regulation system failure.
•
causes
1) Reset the system.
Solutions 2) If the alarm persists, contact our Technical Support
Service.
Alarm A40 SSI FAULT
The system has detected a failure in the static inverter
Description
switch.
Possible problems on the loads.
Possible
•
causes
Static switch fault.
•
1) Check the absorption of the loads and the presence of
DC components, if any, on AC current.
Solutions
2) If the alarm persists, contact our Technical Support
Service.
OMD94016 REV. C