LEGRAND KEOR HP Série Manuel De L'utilisateur page 50

Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
Alarm
Description
Possible
causes
Solutions
50 OMD10074 REV. C
UPS user manual
Manuel de l'utilisateur de l'UPS
Utilizzo dell'UPS
A35 DIESEL MODE
The UPS is supplied by the diesel generator.
 The auxiliary contact which activates the diesel generator
connected to the UPS is closed, and imposes this operating
mode.
1. Wait for the diesel generator to stop as soon as the mains voltage
is restored.
2. Check the connection of the auxiliary contact which signals the
diesel generator start, to terminals XD1/XD2.
3. If the alarm persists, contact our Technical Support Service.
A36 DC FASTSHUTDOWN
Inverter shutdown due to the operation of the protection sensor as a
result of sudden DC voltage variations.
 Battery fault.
1. Check the battery.
2. Reset the system.
3. If the alarm persists, contact our Technical Support Service.
A37 HIGH TEMP RECT
High temperature of the rectifier heat sink.
 Fault of the heat sink cooling fans.
 The room temperature or cooling air temperature is too high.
1. Check the fans operation.
2. Clean the ventilation grids and the air filters, if any.
3. Check the air conditioning system (if present).
4. If the alarm persists, contact our Technical Support Service.
A38 INV --> LOAD
The load is fed by the inverter. This alarm is active for UPS systems in
"ECO" mode, where the preferential supply is from the bypass line.
 Temporary changeover due to bypass line failure.
1. Verify the status of the bypass line and check whether other
alarms are present.
2. If the alarm persists, contact our Technical Support Service.