Deif SGC 120 - Engine Speed Monitoring

Parameter Range Default Description
Crank Disconnect At
Alt Frequency
 
10 to 70 Hz 20 Hz
If the frequency is more than this set point
during cranking, the controller disconnects the
crank.
Crank Disconnect At
Engine Speed
 
150 to 4000 RPM 600 RPM
If the engine speed is more than this set point
during cranking, the controller disconnects the
crank.
Disconnect On
Charging Alt Voltage
 ON CHG ALT

Enable
Disable
Not enabled
If the charging alternator voltage is more than
the alternator set point  ALT 
during cranking attempts, the cranks is
disconnected.
Charging Alt
Disconnect Volt
Threshold
 ALT

5.0 to 30.0 V 5.0 V
If the charging alternator voltage is more than
this set point during cranking, the cranks is
disconnected.
Speed Monitoring
(SPEED MONITOR)
Parameter
Range Default Description
Engine Speed Sense
Source
 SENSE

Alternator frequency
Magnetic Pickup
 Frequency
Alternator frequency Configure how engine speed is monitored.
Flywheel Teeth
 Pickup)
1 to 300 110 The number of teeth on the flywheel.
 Frequency @
1500
0 to 500 274
The frequency at the W-point of the charging
alternator.
Under-speed
Shutdown
 SPEED

Enable
Disable
Not enabled
If this parameter is enabled, the controller shuts
down the engine when the speed is less than
the configured set point for under-speed.
Under-speed
Threshold
 SPEED

0 to 3600 RPM 1400 RPM
When the speed is less than this set point, the
controller shuts down the engine.
Under-speed Delay
 SPEED

1 to 60 s 3 s
If the speed is still less than the under-speed
set point when the timer expires, the engine
shuts down.
Over-speed Threshold
 SPEED

700 to 4000 RPM 1600 RPM The set point for over-speed.
Over-speed Delay
 SPEED 
1 to 20 s 3 s
If the speed is still more than the over-speed
set point when the timer expires, the controller
activates an alarm.
Gross Over-speed
Threshold
 OS

100 to 200 % 130 %
If the speed is more than this set point, the
engine shuts down. The percentage is of the
nominal speed.
Initial Low Speed 500 to 1800 RPM 1100 RPM
Use this parameter to reduce the amount of
pollution when the engine starts. This is the
initial speed of the engine, and is lower than the
operating speed.
User manual 4189341340A EN Page 34 of 76