Lincoln Electric SVM192-A SCHEMATIC - COMPLETE MACHINE - CODE 11096 L12259, Return to Section TOC

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G-4	ELECTRICAL DIAGRAMS	G-4
SCHEMATIC - COMPLETE MACHINE - CODE 11096 (L12259)

Choke mounted on base in

STATOR

TWO POLE 3600 RPM

ELECTRODE

WELD

210DC/225AC

ALTERNATOR

TERMINAL

POLARITY

front of generator.

WINDINGS

L1 CHOKE

S2

D1 - BRIDGE RECTIFIER

S1 - SELECTOR SWITCH

W1

SWITCH

145

Open Circuit Volts:

DC+

90

WAC

37 TO 41 VAC BETWEEN W1

DC-

AC

AND C1 AT HIGH IDLE AND

Max

Min

CV

MAXIMUM RHEOSTAT NO LOAD.

AC

76

38

DC

68

34

254

C1

78 TO 82 VAC BETWEEN W1

CV

32

18

AC

AND W2 AT HIGH IDLE AND

DC-

MAXIMUM RHEOSTAT NO LOAD.

WORK

DC+

1

R5

R3

R1

AC tapped reactor mounted

74 TO 78 VAC BETWEEN WAC

TERMINAL

E

S2

on base in front of generator.

AND W2 AT HIGH IDLE AND

Rectifier mounted on top of choke and

T

TOROID: SENSES

S1

W2

MAXIMUM RHEOSTAT NO LOAD.

AC reactor in front of generator..

U

WELD OR AC

Torroid Core located on

R

POWER LOAD TO

AC TAPPED REACTOR

STATOR AUXILIARY

REVOLVING

BRUSHES

N

ACTIVATE IDLER

6A

6

wiring behind receptacles.

2 TURNS

POWER WINDINGS

FIELDS

+

CB3

CB1

3 3A

CB4

1 TURN SAME

2 TURNS

240 V AC

RESISTANCE

CB2

DIRECTION AS LEAD 6

6

Z

X

Y

3

APPROX.

5 OHMS @ 75F

Rotor Flashing: 2.5

20A

40A

40A

20A

6B

CB5

37VAC

120 V AC

120 V AC

10 TO 50 VDC AT

volts @ 0.5 amps.

12

11

3B

15 AMP

X

1.7 TO 6.8 AMPS

until generator build-up.

3 POLE

5

GND E

-

J3

J2

480 V

LEADS 3 AND 6 PASS

J4

5K

Y

SLIP RINGS

THROUGH TORROID

X

Z

3-PHASE

5L

J1

TWO TIMES IN

Y

GND-C

GND-G

GND-D

OPPOSITE DIRECTIONS

Z

7

219

200A

GND-I

EXCITATION WINDING

5

41 TO 45 VAC

VOLTS MEASURED AT

MAX RHEOSTAT HIGH

IDLE NO LOAD

+14V IN AUTO IDLE / OV IN HIGH IDLE

9

STATOR

PC Board

EXCITATION

located on rear

2

1

WINDINGS

of fan

baffle near top

4

AUTO IDLE (2)

OFF

of machine.

3

+14V RUN

HIGH IDLE (3)

IDLE SOLENOID COIL

S3 OPERATION

S3

1

2

3

4

START (4)

+BAT (1)

-ENERGIZED FOR

SUPPRESSOR FOR

261

260

7

9

219

200A

OFF

LOW IDLE.

213

X

X

X

D1 RECTIFIER

(J2-3)

(J2-4)

+10V

(J1-5)

(J1-11)

AUTO

Idle solenoid is

8 (J1-12)

LOAD

FIELD

HIGH

X

X

X

located on top of

12 to 14 volts

.05

SENSOR

FLASHING

START

X

X

generator stator

5K

130V

+

IDLE TIMER

CIRCUIT

X= CLOSED CIRCUIT

assembly

15 Ohms

across coil when

38J

-

(12 SEC.)

energized

10 (J1-6)

211

224C

213A (J2-1)

FLYBACK

20

FLYBACK

215 (J1-3)

DIODE

DIODE

CB7 25A

208C

CONNECTIONNO

208

209A

J51 - Engine

J51-3

J51-4

+14V @ NORMAL OIL PRES.

224 (J1-9)

IDLE SOLENOID

+10 VOLT

+10V

FIELD

224A 224C

Fuel solenoid is mounted

OUTPUT

COIL

Engine diodes

REGULATOR

RESISTOR

Connector

SWITCHING

CURRENT

0.1

TRANSISTOR

CIRCUIT

FEEDBACK

BATTERY

J51-2

J51-1

CHARGING

are in engine

R

R on engine carburetor.

Battery voltage:

CONTROL

(OVER-CURRENT PROTECTED)

B+

ALT/REG

U

wire harness.

12.6 volts at rest

10K

+10V

HYSTERESIS SWITCH

+

4.74 V

14 volts engine running

77A (J1-4)

47.5

68.1K

4700uF

IGNITION

AC

ENGINE

ENGINE DIODES

+ 12 VOLT

LEVEL

80VDC

MODULE

210

STARTER

R1

76A (J1-8)

+

AC

SOLENOID

BATTERY

0.64 V

CHANGING

+

ENGINE OIL

75A (J1-10)

47.5

-

AND DRIVER

FIELD CURRENT

44 TO 45 VAC

FUEL

CIRCUIT

PRESSURE

GNDBETWEEN AC

ENGINE

SHUTOFF

FRAME

+

SWITCHING

HOUR

SWITCH

TERMINALS

STARTER

SOLENOID

Control board common is

5E (J1-2)

TRANSISTOR

OPENS ON

AT HIGH IDLE

GROUND

-

FIELD CURRENT FEEDBACK

(OVER-CURRENT PROTECTED)

METER

LOW OIL

one diode drop above

REVERSE VOLTAGE

FEEDBACK AMP

PRESSURE

Resistance of fuel

welder frame ground.

PROTECTION DIODE

If engine oil pressure drops below safe

solenoid cannot be

CONNECTOR PIN NUMBERS:

FIELD & IDLE CONTROL

A

operating pressure, the oil pressure

accurately

4

3

12

7

PC BOARD (L12198-1)

switch opens removing 12 volts from

measured through

L12259

circuit 224 shutting off fuel solenoid to

diodes.

2

1

6

3

2

1

J2

J1

stop engine. Hourmeter will also stop

running and PCB1 will denergize idle

solenoid.

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

EAGLE™ 10,000