Engine System - LPG 161Service Manual – CS7000
Throttle Control Modes
Ignition Off
• Battery power is available through the main fuse to the crank request relay common contact, the ignition
request relay common contact and the power relay common contact.
• Battery power is provided to the “run enable” input of the L-Series actuator through the power relay
closed at rest contacts. (If it doesn’t have this signal present on power up, it goes into an error mode.)
• There is no power to the fuel lock off solenoid.
• There is no power to the ignition system or carburetor fuel shut off solenoid.
IGN. REQUEST
MAIN
CONTROLLER
FUEL
LOCK-OFF
SOLENOID
OIL SWITCH
(OPEN FOR
PRESSURE)
TEMP. SWITCH
(OPEN FOR
NORMAL TEMP.)
RUN ENABLE SIGNAL
SHU TDOWN Cont rol
CRANK REQUEST
IGNITION REQUEST
ENGINE RUN (12V INPUT)
HIGH COOLANT TEMP Signal
SPEED 2 (12V OUTPUT)
SPEED 3 (12V OUTPUT)
Eng. RPM
Sensor
STARTER
12v BATTERY
ALTERNATOR
IGNITION POWER
FOR IGNITER &
HIGH COOLANT TEMP.
SH UT DOW N RE LAY
1
5 4
3
2
CONTROL
RELAY
1
5 4
3
2
IGNITION
REQUEST RELAY
1
5
4
3
2
POWER
RELAY
1
5
4
3
2
LOW OIL PRESS.
SHUTDOWN
RELAY
1
5 4
3
2
CRANK
REQUEST
RELAY
1
2
5
6
7
8
9
10
11
12
WOODWARD
L-SERIES
ACTUATOR
3
4
BLK 16
1 2 3
Main Machine
Controller
Carb.
Fuel
Shut Off
Solenoid