LEGRAND KEOR XPE Serie Manuel De Fonctionnement page 308

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
90 OMAF9213 REV. A
KEOR XPE UPS user manual
Manuel de l'utilisateur de l'ASI KEOR XPE
Utilizzo dell'UPS KEOR XPE
A19 OCB OPEN
The output isolator is open.
➢ Output isolator open.
1. Check the status of the output isolator.
2. Check the functionality of the auxiliary contact of the isolator.
3. If the alarm persists, contact our technical support service.
A20 OVERLOAD
The current sensor has detected an overload at the output. If the alarm
persists, the thermal image protection will be activated (alarm A21).
➢ Output overload.
➢ Measuring circuit failure.
1. Check the loads connected to the UPS output.
2. Contact the technical support service.
A21 THERMAL IMAGE
The thermal image protection has been activated after an extended
inverter overload. The inverter is shut down for 30 minutes and then
restarted.
➢ Output overload.
➢ Measuring circuit failure.
1. Check the loads connected to the UPS output.
2. If the alarm persists, contact our technical support service.
A22 BYPASS SWITCH
The "Normal/Bypass" selector has been operated.
➢ Maintenance operation.
1. Check the selector position.
2. If the alarm persists, contact our technical support service.
A23 EPO PRESSED
The system is blocked due to the activation of the emergency power off
button.
➢ Activation of the (local or remote) emergency power off button.
1. Release the emergency power off button and reset the alarm and
execute the alarms resetting procedure.
2. If the alarm persists, contact our technical support service.