Alarms - Deif SGC 420 User Manual

10. Alarms

10.1 Alarms
When a Shutdown alarm occurs the controller commands the genset to stop. The controller does not send the start command if the
Shutdown alarm is not acknowledged.
When an Electrical trip alarm occurs, the controller opens the genset contactor and then commands the genset to stop. The
controller does not send the start command if the Electrical trip alarm is not acknowledged.
If the Warning alarm occurs while the genset runs, the controller does not send the stop command. But if the Warning alarm is not
acknowledged when the genset is stopped, the genset cannot be started.
If Auto warning clear is enabled, the Warning alarms are automatically cleared when the conditions that triggered the alarm are
cleared.
Alarm types
No. Alarm actions
1 Shutdown
2 Electrical trip
3 Warning
4 Notification
Alarms and their causes
No. Alarms
Low Oil Pressure (Sensor)
1
Low Oil Pressure (Switch)
LOP Res Sensor - Ckt
2
Open
High Eng Temp (sensor)
3
High Eng Temp (Switch)
USER MANUAL 4189341227A UK
Description
Load is taken off from the genset and the genset is immediately stopped by skipping the
Engine cooling time.
Load is taken off from the genset, the Engine cooling timer begins, after which the genset
is stopped.
Warning alarms draw the operator's attention to an undesirable condition without affecting
the genset's operation.
The genset cannot be started without acknowledging the Warning alarms
The controller shows the message on the display. The genset start/stop operation is not
affected.
Causes/Indication
Indicates that the oil pressure measured is below the
preset threshold.
Indicates that the oil pressure measured is low through
switch.
The oil pressure sensor is not detected (open circuit).
Indicates that the engine temperature is above the preset
threshold. This condition is detected only when engine is
on.
Indicates that the engine temperature measured is high
through switch.
Actions
None
Shutdown
Warning
None
Shutdown
Warning
Electrical Trip
Notification
None
Shutdown
Warning
Electrical Trip
Notification
None
Shutdown
Warning
None
Shutdown
Warning
Electrical Trip
Notification
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