Generac Power Systems 10 kW LP Repair Manual page 103

DC CONTROL
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
J2 J1
J3
(STEPPER MOTOR)
REMOTE WIRELESS CONNECTION
Figure 7. 16, 17 and 20 kW Printed Circuit Board and J1 Connector
PiN WirE circuit fuNctioN
J1-1 85 High temperature shutdown:
Shutdown occurs when Wire 85 is
grounded by contact closure in HTO
J1-2 86 Low oil pressure shutdown: Shutdown
occurs when Wire 86 is grounded by
loss of oil pressure to the LOP
J1-3 13 12 VDC source voltage for the circuit
board
J1-4 18 Ignition Shutdown: Circuit board
action grounds Wire 18 for ignition
shutdown.
J2-1 INTERNAL USE ONLY
J2-2 INTERNAL USE ONLY
J2-3 14 12VDC output for engine run condi-
tion. Used for fuel solenoid and choke
solenoid operation.
J2-4 817 Grounded by printed circuit board to
turn on System Ready (Green) LED.
J2-5 23 Switched to ground for transfer relay
operation
J2-6 NOT USED
J2-7 NOT USED
Part 4
18
4 3
9
2 1
3
1
J1 CONNECTOR
(HARNESS END)
16, 17 and 20 kW J1 connector Pin Descriptions
DEscriPtioN aND comPoNENts
17 16 15 14 13 12 11
8 7 6 5 4 3 2
J2 CONNECTOR
(PCB END)
4
10 11 12 13 14 15 16 17 18
2 1 2 3
J2 CONNECTOR
(HARNESS END)
N1/N2 CONNECTOR
(PCB END)
PiN WirE
J2-8 15B
J2-9 820
J2-10 0
J2-11 56
J2-12 4
J2-13 818
J2-14 819
J2-15 90
J2-16
J2-17
J2-18
J3
Wired Plug-1 N1
Wired Plug-2 N2
sEctioN 4.1
10
4 3
1 2 1
J1 CONNECTOR
(PCB END)
4 5 6 7 8 9
1
N1/N2 CONNECTOR
(HARNESS END)
circuit fuNctioN
Provides an electrical connection for
charge current to reach the battery
from the battery charger. Provides 12
VDC to the Transfer Relay
Positive voltage (+5 VDC) for status
LEDs.
Common Ground
12 VDC output to starter contactor
relay for V-Twin engines
Field Boost output
Grounded by board to turn on the
Alarm (Red) LED.
Grounded by board to turn on the
Maintenance Required (Yellow) LED.
Switched to ground for choke sole-
noid operation
INTERNAL USE ONLY
NOT USED
NOT USED
Control wires for Stepper Motor
240 VAC sensing for control board.
240 VAC sensing for control board.
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