Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
Page 146/190 © Woodward
Pick-Up (MPU)
Measuring the engine speed can be performed alternatively by means of a Magnetic Pickup, the generator fre-
quency, or a tacho generator. Refer to the wiring diagram that pertains to your specific controller under
Wiring
Diagrams.
Parameter 276
Pickup input
ON
Pickup; Pickup measurement ON/OFF
ON................Engine speed monitoring is performed by means of a Magnetic
Pickup. Once firing speed has been achieved, the starter disengage-
ment is initiated by the MPU measurements.
OFF..............Frequency monitoring/control is performed by means of the
generator frequency measurement. Once firing speed has been
achieved, the starter disengagement is initiated by the generator
frequency measurements.
Parameter 277
nominal speed
Gen. 1/min 0000
Pickup; rated speed at rated frequency 0 to 4,000 rpm
Number of revolutions per minute at rated frequency speed.
Parameter 278
Number of pickup
teeth 000
Pickup; number of Pickup teeth 30 to 280
Number of pulses per revolution.
Plausibility monitoring:
Plausibility monitoring is the comparison of the measured electrical frequency (de-
termined from the generator voltage) and mechanical speed (determined from the
Pickup signal). If the two frequencies are not identical, a class F1 alarm is initiated.
The plausibility monitoring is enabled by the expiration of delayed engine monitor-
ing (
Parameter 274) and performed continuously while the generator is operating.

Woodward GCP-20 Series Specifications

General

Brand	Woodward
Model	GCP-20 Series
Category	Control Unit
Language	English