Generac Power Systems CorePower Repair Manual page 53

Home standby generator
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ENGINE/DC CONTROL
18
17
16
15
14
13
12
11
10
4
3
9
8
7
6
5
4
3
2
1
2
1
J2
J1
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
controller
J1-4
18
Ignition Shutdown: Circuit board
action grounds Wire 18 for ignition
shutdown.
J2-1
0
Not Used
J2-2
0
Not Used
J2-3
14
12 VDC output for engine run condi-
tion. Used for fuel solenoid.
J2-5
23
Switched to ground for transfer relay
operation
J2-6
NOT USED
PART 4
18
17
9
8
3
1
J1 CONNECTOR
(HARNESS END)
Figure 34. Controller Pin Descriptions
6/7 kW Connector Pin Descriptions
16
15
14
13
12
11
7
6
5
4
3
J2 CONNECTOR
(CONTROLLER END)
4
10 11 12 13 14 15 16 17 18
2
1
2
3
J2 CONNECTOR
(HARNESS END)
N1/N2 CONNECTOR
(CONTROLLER END)
PIN
WIRE
J2-7
J2-8
15B
J2-9
J2-10
0
J2-11
56
J2-15
J2-16
J2-17
J2-18
Wired Plug 1
N1
Wired Plug 2
N2
Section 4.1
Description and Components
10
4
2
1
2
J1 CONNECTOR
(CONTROLLER END)
4
5
6
7
8
9
1
N1/N2 CONNECTOR
(HARNESS END)
CIRCUIT FUNCTION
NOT USED
Provides an electrical connection for
charge current to reach the battery
from the battery charger. Provides 12
VDC to the Transfer Relay
NOT USED
Common Ground
12 VDC output to starter contactor
and the choke solenoid.
Used to operate the choke solenoid
and is active during cranking only.
NOT USED
NOT USED
NOT USED
240 VAC sensing for controller.
240 VAC sensing for controller.
3
1
2
Page 51

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