Parameter
Range
Default Comment
Number of magnetic pickup
teeth
1 to 10000 1
The controller uses the number of teeth to calculate the engine speed from
the MPU/W/NPN/PNP measurement signal.
Configure these parameters under
Configure > Parameters > Engine > Running detection > Feedback type
.
Parameter
Range
Default
Comment
Primary running
feedback
The available running
feedbacks (depends on
hardware)
Frequency
Select one of the inputs as the primary running feedback.
If the
Primary running feedback
does not detect running, but any other
running feedback detects running, then the controller activates the
Primary running feedback failure
alarm.
Configure these parameters under
Configure > Parameters > Engine > Running detection > Detection set point
.
Parameter
Range
Default
Comment
MPU
0 to 50000 RPM 1000 RPM
Running detection is ON when the engine speed measured by the
MPU/W/NPN/PNP input is above this set point.
Frequency
10 to 100 Hz
32 Hz
Running detection is ON when the frequency measured by the generator
voltage measurements is above this set point.
For example: For a 60 Hz system, you can use a detection set point of 45 Hz.
Use magnetic
pickup
Not enabled,
Enabled
Enabled
Not enabled:
The MPU/W/NPN/PNP measurement (connected to the first
EIM3.1 in the controller rack) is ignored and not used for running detection.
Enabled:
The MPU/W/NPN/PNP measurement (connected to the first EIM3.1
in the controller rack) is used as a running detection input.
Oil pressure*
0 to 10 bar
3 bar
Running detection is ON when the engine oil pressure measured by the
analogue input is above this set point.
Use oil
pressure*
Not enabled,
Enabled
Enabled
Not enabled:
The engine oil pressure is ignored and not used for running
detection.
Enabled:
The engine oil pressure is used as a running detection input.
*Note: This parameter is only visible if the analogue input is configured.
Frequency running detection hysteresis
For stable operation, running detection has a fixed 2 Hz hysteresis.
Frequency running detection hysteresis examples
Example 1
: The detection set point for frequency is 32 Hz. When the frequency rises above 32 Hz, running detection
changes to ON. However, the frequency has to drop below 30 Hz for running detection to change to OFF.
Example 2
: The detection set point for frequency is 45 Hz. When the frequency rises above 45 Hz, running detection
changes to ON. However, the frequency has to drop below 43 Hz for running detection to change to OFF.
MPU/W input running detection hysteresis
For stable operation, running detection has a fixed 5 % hysteresis on the genset RPM.
Oil pressure running detection hysteresis
For stable operation, running detection has a fixed 5 % hysteresis on the oil pressure.
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