UPS user manual
Utilizzo dell’UPS
46
OMD10082 REV. F
Alarm
A35
DIESEL MODE
Description
The UPS is supplied by the diesel generator.
Possible
causes
The auxiliary contact which activates the diesel generator
connected to the UPS is closed, and imposes this operating
mode.
Solutions
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.
Alarm
A36
DC FASTSHUTDOWN
Description
Inverter shutdown due to the operation of the protection sensor as a
result of sudden DC voltage variations.
Possible
causes
Battery fault.
Solutions
1. Check the battery.
2. Reset the system.
3. If the alarm persists, contact our Technical Support Service.
Alarm
A37
HIGH TEMP RECT
Description
High temperature of the rectifier heat sink.
Possible
causes
Fault of the heat sink cooling fans.
The room temperature or cooling air temperature is too high.
Solutions
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.
Alarm
A38
INV --> LOAD
Description
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.
Possible
causes
Temporary changeover due to bypass line failure.
Solutions
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.
Содержание ASD10
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