CONTROLLER DISPLAY
Running / Cooling Down
= 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 114
utility VoltaGe reStored / re-tranSFer to utility
The “Load” is powered by the standby power supply. The circuit board continues to seek an acceptable utility
source voltage. On restoration of utility source voltage, the following events will occur:
• On restoration of utility source voltage above 75 percent of the nominal rated voltage, a “retransfer time delay”
on the circuit board starts timing. The timer will run for about fifteen (15) seconds.
• At the end of fifteen (15) seconds, the “retransfer time delay” will stop timing and circuit board action will open
the Wire 23 circuit to ground. The transfer relay (TR) will then de-energize.
• When the transfer relay (TR) de-energizes, its normally-closed contacts close. Utility source voltage is then
delivered to the utility closing coil (C1), via Wires N1A/N2A, the closed TR contacts, Wire 126, limit switch XA1,
and a bridge rectifier.
Part 4
DC CONTROL
sEctioN 4.2
oPEratioNal aNalYsis
0G9266revA.indd 114
10/15/2008 11:28:01 AM