LEGRAND KEOR HPE 60 kVA Operating Manual page 1278

Alarm A29
Description It is necessary to carry out maintenance work.
 The time limit since the last maintenance work has elapsed.
Possible
causes
Solutions
Alarm A30
Description Common alarm.
 At least one alarm is present.
Possible
causes
Solutions
procedures.
Alarm A31
Description The manual bypass isolator is closed.
 Manual bypass isolator closed.
Possible
causes
Solutions
Alarm A32
Description The system is blocked due to the activation of the emergency power off
button.
 Activation of the (local or remote) emergency power off button.
Possible
causes
Solutions
Alarm A33
Description The positive and negative voltages measured on the DC capacitors towards
the middle point are different.
 Possible failure on the measuring circuit.
Possible
causes
 Possible fault of DC capacitors.
Solutions
Manuel de l'utilisateur de l'ASI
MAINTENANCE REQ
Contact our Technical Support Service.
COMMON ALARM
Check which alarms are present and carry out the indicated
MBCB BUS CLOSED
Check the status of the manual bypass isolator.
Check the functionality of the auxiliary contact of the isolator.
If the alarm persists, contact our Technical Support Service.
EPO BUS CLOSED
Release the emergency power off button and reset the alarm.
If the alarm persists, contact our Technical Support Service.
ASYMMETRIC LOAD
Reset the system.
If the alarm persists, contact our Technical Support Service.
UPS user manual
Utilizzo dell'UPS
OMW07104 REV.A 53