Woodward GCP-30 Series User Manual

Manual 37365A GCP-30 Series Packages - Genset Control
Page 134/179 © Woodward
Starting Sequence
If the control is equipped with a three-position frequency controller, a continuous "Frequency lower prior to
start" signal (time adjustable via Parameter 268) is output before starting t
he engine. The "Pre-glow" relay is
enabled for the time configured in Parameter 263 after the frequency lower signal terminates. After the pre-glow
cycle term
inates, the fuel relay is enabled (Parameter 269), followed by the crank relay. Once the firing speed
(Parameter 272) has been exceeded, the starter disengages, and the fuel relay rem
ains enabled by means of the
firing speed. After reaching the "f-controller: starting frequency" (Parameter 39) and the delayed engine monitor-
i
ng has expired (Parameter 271), the speed controller is enabled.
Stopping Sequence
When the start request is terminated, a power reduction is performed (if the real power controller is enabled,
Parameter 74). Once the GCB has opened, an engi
ne cool down is performed (Parameter 270). When the engine
cool down period expires, the fuel relay is de-energized and the engine is stopped. When the engine speed falls
below the firing speed (Parameter 272), the engine starting sequence i
s disabled for 10 seconds. If the engine
fails to stop after 30 seconds, an alarm message is issued and a F3 class alarm is initiated.
Parameter
Parameter 263
Preglow time
00s
Diesel engine; pre-glow time 0 to 99 s
Prior to each starting sequence, the engine glow plugs are energized for this time
period.
Parameter 264
Max. attempts to
Start 0
Diesel engine; maximum number of start attempts 1 to 6
The control will initiate up to this number of start attempts. If the engine cannot be
started within this number of start attempts, an alarm message is issued.
Parameter 265
Starter time
00s
Diesel engine; crank time 2 to 99 s
The maximum amount of time the starter will crank the engine during a start se-
quence.
Parameter 266
Start pause time
00s
Diesel engine; time between two start attempts 1 to 99 s
The delay time between the individual start attempts.
Parameter 267
f lower before
start OFF
with three-step controllers only
only accessible via LeoPC1
Diesel engine; frequency lower prior to start ON/OFF
If this function is enabled and the control is equipped with a three-step frequency
controller, the command "lower engine speed" is issued for the time configured in
Parameter 268 before the starter is engaged. The low-idle position m
ust either be
equipped with a limiting switch, or the engine potentiometer must be equipped with
a slipping clutch to protect the devices. A message is displayed.
CAUTION
The engine starting is delay by means of the low-idle position in the event of emer-
gency power operation.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English