Motortech DetCon series, Руководство по эксплуатации

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3 Intended Use
16 Rev. 02/2019
The measured knocking energy ( Knocking Level curve) is compared in every cycle with a preset
maximum value ( IGNITION REDUCTION LIMIT ). If this maximum value is reached, the binary
output ENGINE KNOCKING is activated. At the same time, the analog outputs change their values
( Timing Reduction curve). The rate at which the value of the signal changes is specified by the
setting Timing Reduction Gain . The analog signals are transmitted to the ignition controller, thus
adjusting the ignition timing. If this causes the knocking energy to fall below the maximum
value, the values at the analog outputs are also reduced. The rate of this reduction is adjusted
according to the preset value
Decrease Ramp .
If the ignition timing can no longer be corrected via the analog outputs and the engine is still
knocking, the binary output for load reduction (
LOAD REDUCTION ) is activated. A master control
(e.g. ALL-IN-ONE) can control load reduction via this output.
LOAD REDUCTION is deactivated again if the engine knocking stops. However, the analog
outputs remain active for a further period which is set via the function
Delay after load reduction
.
This period must be longer than required for reaching full load.
The third binary output, i.e. TRIP , is activated when the knocking exceeds the maximum value
IMMEDIATE STOP LIMIT . This can be used as an emergency stop signal to force the engine to stop.
Checkbox Enable bad sensor detect
Activate the checkbox so that faulty knock sensors are indicated by the BAD
SENSOR status display. This function only detects sensors that supply
faulty signals. If there is a cable break or a sensor does not supply a signal
at all for any other reason, this is not indicated. If a faulty sensor is
detected, the binary output TRIP is also switched..