Generac Power Systems 16 kW NG User Manual

•  The  utility  closing  coil  (C1)  energizes  and  moves  the  main  current  carrying  contacts  to  their  NEUTRAL

position. The main contacts move to an over center position past NEUTRAL and spring force closes them 
to their UTILITY side. LOAD terminals are now powered by the UTILITY source.

•  Movement of the main contacts to UTILITY actuates limit switches XA1/XB1. XA1 opens and XB1 actuates to

its STANDBY source side.

•  The generator continues to run.

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 115

DC CONTROL