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Circuit condition - run, Page 24 – Guardian Technologies 5209 User Manual

Page 26

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section 4
engine Dc contRol sYsteM

Page 24

VOLTAGE

ELECTRONIC

REGULATOR

11S

162

0

6

44S

4

6

5

4

3

2

1

BCR2

77A

15

66A

5

6

4

10

12

SSR

9

RESET

RESET

TEST

TEST

18

IM2

SP2

IM1

SP1

PRINTED CIRCUIT

BOARD

CONTROL

12

10

11

9

2

7

8

6

4

5

3

J2

1

J1

15B

83

TR1

0

167

TR2

86

229

44S

11S

ACTUATOR

GOVERNOR

0

0

44C

22

11C

22

C.B.

0

0

0

0

22

22

22

44D

11D

44B

11B

11B

0

11A

44A

22

20A

C.B.

20A

30A

C.B.

30A

C.B.

30A

C.B.

50A

C.B.

30A

C.B.

FIELD

0

167

SW1

BATTERY CHARGE WINDING

55A

10A BATTERY CHARGE WINDING

77

55

11S

11

22

44

44S

66

77A

66A

6

2

4

0

C1-12

C1-11

C1-7

C1-6

C1-1

C1-2

C1-4

C1-9

C1-8

C1-10

C1-5

C1-3

77

66

BCR1

13A

CB2

83

167

229

15B

0

86

SW2

FSS

LOP

0

15

17

0

17

15

0

0

86

14

C2-8

C2-3

C2-4

C2-10

C2-5

C2-7

C2-1

C2-2

15

C2-12

0

0

16

SC

BATTERY

BLACK

RED

SC

SM

12V

CB1

15A

0

C2-6

C2-11

C2-9

13

13

F1

SCR

229

14

15B

18

0

15

15

15

0

0

0

167

15

15

86

0

14

17

18

13

13

16

14

14

14

14

86

13

15

15

15

15

15

15

15

15

14

18

18

167

167

86

86

4

4

162

11S

44S

22

11

0

44

11

0

22

44

11

0

22

44

11

0

22

44

44

77A

77

66A

66

77

0

2

2

2

6

6

6

11S

4

0

44S

RED

BLK

BLK

83

0

0

0

0

0

229

15B

15

15

15

0

17

17

4

SCR - STARTER CONTACTOR RELAY

SW1 - START-RUN-STOP SWITCH

SSR - START / STOP RELAY

SP2 - SPARK PLUG, CYL. 2

SP1 - SPARK PLUG, CYL. 1

SM - STARTER MOTOR

SC - STARTER CONTACTOR

R1 - 25 OHM, 25W RESISTOR

IM2 - IGNITION MODULE, CYL. 2

FSS - FUEL SHUT OFF SOLENOID

CB1 - 10AMP AUTO RESET BREAKER

LOP - LOW OIL PRESSURE

IM1 - IGNITION MODULE, CYL. 1

GND - GROUND BAR

F1 - 10A FUSE

D2, D3 - ENGINE SHUTDOWN DIODE

BA - BRUSH ASSEMBLY

LEGEND

120/240V

50A

TWISTLOK

TWISTLOK

120V/30A

TWISTLOK

120V/30A

DUPLEX

120V

120V

GFCI

30A

120/240V

POWER WINDING

DPE WINDING

I.C.T.

I.C.T.

I.C.

R1

D1

TB1

TB2

D2

D3

12Vdc

BA

CB2 - 5AMP AUTO RESET BREAKER
D1 - 600V 12A DIODE

BCR2 - BATTERY CHARGE RECTIFIER

BCR1 - BATTERY CHARGE RECTIFIER, 10A

I.C.T. - IDLE CONTROL TRANSFORMER

SW2 - IDLE CONTROL SWITCH
TB1, TB2 - TERMINAL BLOCK

13

14

13

= 12 VDC SUPPLY

= 12 VDC CONTROL

= AC POWER

= GROUND

= IDLE CONTROL TRANSFORMER OUTPUT

CIRCUIT CONdITION - RUN:

Once the engine has started the Start-Run-Stop Switch (SW1) is released and will be in the run position, at this

point SW1 is not activated. This action will de-energize the Starter Contactor Relay (SCR) causing the Starter

Motor to disengage.
Printed circuit board action keeps Wire 229 held to ground this action holds the Start-Stop Relay (SSR) energized.

With the SSR energized Wire 14 maintains 12 VDC to the Fuel Shutoff Solenoid. Once the Voltage Regulator

starts functioning the field boost circuit is no longer a factor in operation. With the SSR energized Wire 15B main-

tains 12 VDC to the printed circuit board. With the SSR energized Wire 18 is not grounded and the magnetos con-

tinue to produce spark.
The two independent battery charge windings are now producing AC voltage and supplying this to BCR1 and

BCR2. The AC voltage is rectified through BCR1 and used to supply DC voltage to the 12 VDC accessory outlet.

The AC voltage is rectified through BCR2 and used to supply DC voltage to the battery for battery charging.

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