CONTROLLER DISPLAY
Cranking Attempt #1
= 12 VDC ALWAYS PRESENT
= AC VOLTAGE
= GROUND FOR CONTROL PURPOSES
= 12 VDC DURING CRANKING ONLY
= 12 VDC DURING ENGINE RUN CONDITION
= DC FIELD EXCITATION
= 5 VDC TO LED
0
4
4
0
BA
6
11
22
6
2
2
REGULATOR
11
2
6
0
4
22
VOLTAGE
4
0
0
13
13
18
SP2
IM2
16
13
SCR
0
0
86
85
HTO
LOP
18
0
13
12V
BATTERY
SCR
SM
IM1
SP1
44
11
POWER
WINDING
33
22
WINDING
POWER
STATOR
4
0
56
0
SC
820
817
818
819
819
818
817
820
L2
L1
LED BOARD
4
3
2
1
4
ACTUATOR
GOVERNOR
14
14
90
OUTPUT
GENERATOR
240 VAC
NEUTRAL
INPUT
UTILITY
240 VAC
TRANSFER
+ BATTERY
GROUND
56
0
15B
23
23
0
0
FS
BATTERY WARMER
OPTIONAL
N1
00
22
33
11
44
CB
15B
14
0
0
CS
N2
N1
2
1
N2
N1
18
13
86
85
4
3
2
1
18
17
16
15
14
13
12
10
9
11
8
6 7
4
3
5
CB - CIRCUIT BREAKER, MAIN OUTPUT
HTO - HIGH TEMPERATURE SWITCH
FS - FUEL SOLENOID
LEGEND
SCR - STARTER CONTROL RELAY
SC - STARTER CONTACTOR
CS - CHOKE SOLENOID
LOP - LOW OIL PRESSURE SWITCH
SM - STARTER MOTOR
BA - BRUSH ASSEMBLY
IM_ - IGNITION MODULE
SP_ - SPARK PLUG
0
J3
J1
PRINTED CIRCUIT BOARD
TO
PCB
7.5 AMP FUSE
SELF RESETTING FUSE
CONTROLLER
J2
Page 108
utility VoltaGe dropout and enGine crankinG
• After ten (10) seconds and when the circuit board’s 10-second timer has timed out, if utility voltage is still below
65 percent of nominal, circuit board action will energize the circuit board’s crank and run relays simultaneously.
• Printed circuit board action delivers 12 volts DC to a starter contactor relay (SCR), via Wire 56. When the SCR
energizes, its contacts close and battery power is delivered to a starter contactor (SC). When the SC energizes,
its contacts close and battery power is delivered to the starter motor (SM). The engine cranks.
Part 4
DC CONTROL
sEctioN 4.2
oPEratioNal aNalYsis
0G9266revA.indd 108
10/15/2008 11:27:58 AM