LEGRAND KEOR HP Série Manuel De L'utilisateur page 49

Alarm A30
Description Common alarm.
 At least one alarm is present.
Possible
causes
Solutions 1. Check which alarms are present and carry out the indicated
Alarm A31
Description The manual bypass isolator is closed.
 Manual bypass isolator closed.
Possible
causes
Solutions 1. Check the status of the manual bypass isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. If the alarm persists, contact our Technical Support Service.
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 1. Release the emergency power off button and reset the alarm.
2. If the alarm persists, contact our Technical Support Service.
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 1. Reset the system.
2. If the alarm persists, contact our Technical Support Service.
Alarm A34
Description A UPS check is necessary.
 Possible UPS fault.
Possible
causes
Solutions 1. If the alarm persists, contact our Technical Support Service.
Manuel de l'utilisateur de l'UPS
COMMON ALARM
procedures.
MBCB BUS CLOSED
EPO BUS CLOSED
ASYMMETRIC LOAD
SERVICE REQUIRED
UPS user manual
Utilizzo dell'UPS
OMD10074 REV. C 49