Deif SGC 120 - Mains Frequency Monitoring; Engine Monitoring and Control; Crank Disconnect Settings

Frequency Monitoring (FREQ MONITOR)
Parameter Range Default Description
Under-frequency
 
Enable
Disable
Yes
If this parameter is enabled, the controller
detects a mains failure when the mains
frequency is less than the under-frequency set
point  trip).
 Trip
 
10.0 to 59.0 Hz 45 Hz
If the mains frequency is less than this set
point, there is a mains failure.
 Return
 
11.0 to 60.0 Hz 47 Hz
The mains returns when the mains frequency is
more than this set point.
Over-frequency
 
Enable
Disable
Yes
If this parameter is enabled, the controller
detects a mains failure when the mains
frequency is more than the over-frequency set
point  trip).
 Return
 
25.0 to 74.0 Hz 55 Hz
If the mains frequency is more than this set
point, there is a mains failure.
 Trip
 
26.0 to 75.0 Hz 52 Hz
The mains returns when the mains frequency is
less than this set point.
 Delay 10 s
If the frequency is more than the over-
frequency set point when this timer expires, the
action for over-frequency is activated.
3.5.8 Engine
Crank Disconnect (CRANK DISCONN)
Parameter
Range Default Description
Start Attempts
 
1 to 9 3 Number of attempts to crank the engine.
Disconnect on Oil
Pressure Sensor
 ON LOP

Enable
Disable
Not enabled
If this parameter is enabled, the crank is
disconnected when the oil pressure is more
than the oil pressure set point  LOP

Monitor Pressure
Sensor Before Crank
 LLOP BEF

Enable
Disable
Not enabled
If this parameter is enabled, the oil pressure is
monitored before the engine starts. If the oil
pressure is more than the set point  LOP
BEF  the engine cannot start.
Pressure Sensor
Monitoring Threshold
 LOP 
0.5 to 10.0 bar 4 bar Configure the set point for the oil pressure.
Monitor Pressure
Switch Before Crank
 LOP BEF

Enable
Disable
Not enabled
If this parameter is enabled, the oil pressure is
monitored before the engine starts. If the
pressure switch is open, the controller activates
a high oil pressure alarm.
Disconnect on Oil
Pressure Switch
 ON LLOP

Enable
Disable
Not enabled
If this parameter is enabled, the crank
disconnects if the oil pressure is high.
Pressure Switch
Transient Time
 SW TRANS

0.0 to 3.0 s 1.5 s
If the oil pressure is high after this timer
expires, the crank is disconnected.
User manual 4189341340A EN Page 33 of 76