Manual 37365A GCP-30 Series Packages - Genset Control
Page 12/179 © Woodward
Discrete inputs
Terminals 34 to 36/33 and 61 to 73/60
These freely programmable alarm inputs may be configured with user defined text, alarm classes, time
delays, whether alarm monitoring should be delayed by the engine speed, and if the contacts are N.O.
or N.C. contacts.
Control Outputs
Ready for operation
Terminals 18/19
This relay output is used to ensure that the internal functions of the controller are operating properly.
If this relay is bypassed or disabled, proper functionality of the control cannot be guaranteed. This re-
lay should be used in conjunction with an alarm that ensures proper actions are initiated upon activa-
tion of this relay output (i.e. GCB opening, engine shutdown). It is recommended that this contact be
put in series with an emergency stop function.
Preheating (Diesel engine)
pre-assigned to terminals 37/38
When this relay is enabled, the diesel engine's glow plugs are energized (refer to the "Diesel Engine"
section). This function only occurs if the control has been configured for diesel engine start/stop log-
ic.
Ignition "ON" (Gas engine)
pre-assigned to terminals 37/38
When this relay is enabled, the ignition of the gas engine is energized (refer to the "Gas Engine" sec-
tion). This function only occurs if the control has been configured for gas engine start/stop logic.
Fuel relay / gas valve
Terminals 43/44
a) Diesel engine: fuel relay (
Parameter 269)
a.1) Open to stop
A start/run command will initiate the start sequence for the diesel engine and close the contacts for
this relay energizing the fuel solenoid relay. This relay will disable (contacts open) when a stop
command is issued or the engine speed drops below the configured firing speed (Parameter 272).
Refer to
the "Diesel Engine" section.
a.2) Close to stop
A start/run command will initiate the start sequence for the diesel engine and open the contacts for
this relay. This relay will enable (contacts close) when a stop command is issued or the engine
speed drops below the configured firing speed (Parameter 272). Refer to the "Diesel Engine" sec-
t
ion.
b) Gas engine: gas valve
A start/run command will initiate the start sequence for the gas engine and close the contacts for
this relay energizing the gas valve relay. This relay will disable (contacts open) when a stop com-
mand is issued or the engine speed drops below the configured firing speed (Parameter 272). Refer
t
o the "Gas Engine" section.
Starter
Terminals 45/46
The starter relay is enabled when a start command is issued. The starter relay output is de-energized
when firing speed (Parameter 272) has been achieved, the configured crank time (Parameter 259 or
Parameter 265) has expired, or the STOP mode is enabled.