LEGRAND KEOR HP Série Manuel De L'utilisateur page 54

Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
54 OMD10074 REV. C
UPS user manual
Manuel de l'utilisateur de l'UPS
Utilizzo dell'UPS
A53 FIRMWARE ERROR
The controller has detected an incompatibility in the control software.
 The software update was not performed properly.
1. Contact our Technical Support Service.
A54 CAN ERROR
Internal error.
 Microcontroller communication problems.
1. Contact our Technical Support Service.
A55 PAR CABLE DISC
Parallel cable doesn't communicate.
 Parallel cable disconnected or damaged.
1. Check the connection of cable
2. Contact our Technical Support Service.
A56 MAINS UNBALANCE
The rectifier input voltage is unbalanced.
 Problems on the LV or MV distribution network
 Defect of the measuring circuit
1. Check the input voltage
2. Contact our Technical Support Service.
A63 START SEQ BLOCK
During the UPS start-up a failure prevented the proper execution of the
sequence.
 Control devices in wrong position or operated improperly.
 Possible internal fault.
1. Make sure the position of the control devices (isolators, selectors)
is as specified in the procedures (see "Installation and start-up"
section).
2. If the alarm persists, contact our Technical Support Service.