Automatic Standby Generator Repair Manual

Page 100
J2
J3
(STEPPER MOTOR)
REMOTE WIRELESS CONNECTION
J1
J2 CONNECTOR
(HARNESS END)
10 11 12 13 14 15 16 17 18
1 2
3 4
1 2
3 4 5 6 7 8 9
101112131415161718
12
34
123456789
101112131415161718
12
34
12
3456789
J1 CONNECTOR
(HARNESS END)
J2 CONNECTOR
(PCB END)
J1 CONNECTOR
(PCB END)
N1/N2 CONNECTOR
(HARNESS END)
N1/N2 CONNECTOR
(PCB END)
1 2
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 12 VDC 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
PIN WIRE CIRCUIT FUNCTION
J2-8 15B Provides an electrical connection for
charge current to reach the battery
from the battery charger. Provides 12
VDC to the Transfer Relay
J2-9 820 Positive voltage (+5 VDC) for status
LEDs.
J2-10 0 Common Ground
J2-11 56 12 VDC output to starter contactor
relay for V-Twin engines
J2-12 NOT USED
J2-13 818 Grounded by board to turn on the
Alarm (Red) LED.
J2-14 NOT USED
J2-15 90 Switched to ground for choke sole-
noid operation
J2-16 INTERNAL USE ONLY
J2-17 NOT USED
J2-18 NOT USED
J3 Control wires for Stepper Motor
Wired Plug-1 N1 240 VAC sensing for control board.
Wired Plug-2 N2 240 VAC sensing for control board.
12/14 kW J1 Connector Pin Descriptions
Figure 6. 12/14 kW Printed Circuit Board and J1 Connector
PART 4
DC CONTROL
SECTION 4.1
DESCRIPTION AND COMPONENTS