AEG UPS 10 kVA User Manual page 55

OMD94016 REV.
C 55
Alarm A54 CAN ERROR
Description Internal error.
Possible
Micro-controller communication problems.
•
causes
Solutions 1) Contact our Technical Support Service.
Alarm A55 PAR CABLE DISC
Description Parallel cable doesn't communicate.
Possible
Parallel cable disconnected or damaged.
•
causes
1) Check the connection of cable
Solutions
2) Contact our Technical Support Service.
Alarm A56 MAINS UNBALANCE
Description The rectifier input voltage is unbalanced.
Problems on the LV or MV distribution network
Possible
•
causes
Defect of the measuring circuit.
•
1) Check the input voltage
Solutions
2) Contact our Technical Support Service.
Alarm A63 START SEQ BLOCK
During the UPS start-up a failure prevented the proper
Description
execution of the sequence.
Control devices in wrong position or operated improperly.
Possible
•
causes
Possible internal fault.
•
1) Make sure the position of the control devices (isolators,
selectors) is as specified in the procedures (see
Solutions "Installation and start-up" section).
2) If the alarm persists, contact our Technical Support
Service.