Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
Page 40/190 © Woodward
Gas Engine
t/s
t
ZV
t
St SPZ
t t
ZV GV
t
t
ZN
1500 1/min
ZD (1)
(1) (2)
MV
t
t
N
Ignition
Starter
Speed governor
Gas valve
Start request
Engine monitoring
activated
Delayed engine
monitoring 00s
Start Stop
Approach idle
gas position
Switching-on of
the ignition
Disengaging of the starter
Ignition and gas ON
Start attempt
unsuccessful
Start attempt
successful
Ignition speed reached
min. speed starter
(Pickup ON)
[1/min] (2)
min. speed starter is not reached
Start frequency
f-contr. + time
without Pickup active: < 15 Hz
[1/min]
EZ
t
EZ
t
Figure 7-2: Gas engine start procedure
The abbreviations and indices mean: t
St
....... approach idle gas position
t
ZV
...... firing delay [s]
t
GV
..... gas delay [s]
t
EZ
...... engagement time [s]
t
SPZ
..... interval between two start attempts [s]
t
MV
..... delayed engine monitoring [s]
t
ZN
...... ignition coasting [s]
t
N
....... coasting time [s]
(1) ..... disengagement of the starter; ignition and gas ON
(2) ..... starting of ignition and gas

Woodward GCP-20 Series Specifications

General

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