Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
Page 138/179 © Woodward
Magnetic Pick-Up Input
Measuring the engine speed may be performed by means of a Magnetic Pickup. The use of an alternator or a ta-
cho generator to detect engine speed are alternate methods of monitoring if the engine has achieved firing speed.
If an alternate means of detecting engine speed is utilized, then the GCP must receive a signal via terminal 62
(refer to Acknowledge firing speed via terminal 62 on page 113). Refer to the Installation Manual 37364 for the
wi
ring diagram that pertains to your specific controller.
Parameter 274
Pickup input
ON
Magnetic pickup; measurement ON/OFF
ON ................ The Magnetic Pickup input is enabled to monitor engine speed. The
GCP utilizes the signal from the MPU to detect when firing speed
has been achieved. The engine speed signal monitored via the MPU
is used to disengage the starter.
OFF .............. The MPU input is disabled. All speed and frequency monitor-
ing/control is performed via generator frequency. The GCP utilizes
the frequency of the monitored generator voltage to detect when fir-
ing speed has been achieved. The starter will disengage when the
GCP detects that the frequency has exceeded 15Hz or higher (depen-
dent upon how "Firing speed reached f> 00Hz" (Parameter 272) is
confi
gured).
Parameter 275
Number of pickup
teeth 000
only accessible via LeoPC1
Magnetic pickup; number of teeth on flywheel 30 to 280
Number of pulses per revolution.
Plausibility monitoring:
The GCP performs plausibility checks to ensure that the frequency of the voltage
and engine speed match. This is performed by comparing the frequency of the gen-
erated voltage and the mechanical speed of the engine as determined by the MPU
signal. If the two frequencies are not identical, a F1 class alarm is issued. Plausibili-
ty monitoring is enabled after the delayed engine monitoring (Parameter 271) ex-
pi
res and is performed continuously while the generator is operating.
Parameter 276
Gen.rated speed
0000 rpm
only accessible via LeoPC1
Magnetic pickup; rated speed at rated frequency 0 to 3,000 rpm
The number of revolutions per minute that the engine will turn at while the genera-
tor is producing voltage at the rated frequency.
Note
In normal direct drive applications the following are typical settings. These values
will vary if a transmission is used.
60Hz = 1800 RPM
50Hz = 1500 RPM

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English