LEGRAND KEOR HPE Manuel De Fonctionnement page 219

Alarm A25
Description The inverter is blocked due an operation failure.
Possible  Various.
causes
Solutions 1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
Alarm A26
Description Internal error.
Possible  Microcontroller communication problems.
causes
Solutions 1. If the alarm persists, contact our Technical Support Service.
Alarm A27
Description The controller has detected an error in the parameters stored in EEPROM.
Possible  Wrong parameters entered during programming.
causes
Solutions 1. Contact our Technical Support Service.
Alarm A28
Description An alarm has been activated which causes the shutdown of part of the
UPS (rectifier, inverter, static switch).
Possible  System failure.
causes
Solutions 1. Check which alarms are present and carry out the indicated
procedures.
2. If the alarm persists, contact our Technical Support Service.
Alarm A29
Description It is necessary to carry out maintenance work.
Possible  The time limit since the last maintenance work has elapsed.
causes
Solutions 1. Contact our Technical Support Service.
Manuel de l'utilisateur de l'ASI
INVERTER OFF
COMMUNIC ERROR
EEPROM ERROR
CRITICAL FAULT
MAINTENANCE REQ
UPS user manual
Utilizzo dell'UPS
OMG38225 REV.F 53