Lincoln Electric SVM175-A service manual L11946

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G-11

ELECTRICAL

DIAGRAMS

G-11

SCHEMATIC - ENTIRE MACHINE - CODE 10926 (L11946) PAGE 1 OF

2

L11946

ENGINEERING CONTROLLED CHANGE DETAIL: RELEASED FROM "X"

CHOPPER PC BOARD

MANUFACTURER:

No

IGBT'S, FLYBACK DIODES AND

Rectifier mounted to generator support

Shunt on back of positive

R4 is located on front of

p/n L11845-1

above output choke.

POSITIVE

machine

+COM

FILTER CAPACITORS ARE INTEGRAL

D1 - THREE PHASE BRIDGE RECTIFIER

50MV=400 AMPS

INDIVIDUALLY REPLACEABLE.

OUTPUT

SHUNT output terminal

fan baffle near top of

TO CHOPPER MODULE AND NOT

TERMINAL

206B

206S 204S

WELD CURRENT

B2 B5 10,000uF x4

Chopper is mounted on the back side of fan

206C 206A

FEED BACK SIGNAL

R4

FLYBACK

+

baffle near top of machine.

BY-PASS

WIREFEEDER

DIODES (6)

DC BUS VOLTAGE

50 OHM

W1

Located on back of

PC BOARD

208C

21

VOLTMETER

100 W

FILTER

output panel

POLARITY

CAPACITORS (4)

90+/-10VDC @ HI IDLE

60 TO 65 VAC PHASE TO PHASE

between terminals

208

208A

SWITCH

IGBT (8)

BETWEEN W1, W2 AND W3

NEGATIVE

-OUTPUT

B3

E

B1

-INPUT

AT HIGH IDLE

TWO POLE 3600 RPM ALTERNATOR

C

OUTPUT

L1 CHOKE

Power Supply

B6

GATE SIGNAL

B4

PWM Signal to Chopper

W2

TERMINAL

of generator on support.

15 volt @ 20 kHz

Choke is beneath bearing end

to Control

B7

B8

Open Circuit Volts:

W3

CC

Max

Min

Board

Rotor Flashing: +12 volts

3

C3 and D3 located on rear of fan baffle

58

58

TWISTED

TWISTED

TWISTED

TO AUX.

CV

58

58

@ 0.5 amps

120 V AC

SLIP RINGS

on left side of machine.

Pipe

58

26

PAIR

PAIR

PAIR

until generator builds up

R3 located on front of fan baffle

240 V AC

5

200

50 V DC

Tig

12

12

13 (J3-8)

14 (J3-16)

25 (J3-9)

23 (J3-10)

then +50 volts @ 0 amps.

on left side near bottom of

OUTLETS

200A

+

ROTOR FLASHING

R3 25 OHM

machine

120 V AC

GND E

C3

D

204S (J6-1)

(J2-1) 200N

41 6

ARC VOLTAGE FEEDBACK SIGNAL

206S (J6-2)

(J2-5) 215

LOW IDLE SOLENOID HOLD COIL (0V @ LOW IDLE)

AND

800uf

3

208B (J3-15)

Control board common is

42 VOLT AC

201

150vdc

+15V @ LOW IDLE TO PULL COILBOARD

10 V

77 (J7-1)

at welder positive output

(J2-4) 404

AMPHENOLS

WIRE FEEDER

5H

OUTPUT

and shunt

POWER

R1

0-10 V

76 (J7-4)

WELD CONTROL

0 V

Swich closed for high idle.

42

CONTROL 10K

0 V

(J3-14) 252

75 (J7-5)

15 V

IDLER SWITCH

REVOLVING FIELD

10 V

PC BOARD

(J3-7) 251

2A

(TO AMPHENOL)

42 VOLT AC

REMOTE

77A (J1-11)

P/N G4107-1

(J1-4) 2

15 V

FIELD RESISTANCE

(TO AMPHENOL)

-15 V (W/O POT.) 76A (J1-14)

0 V

WELD TERM. SW.

POWER FOR

APPROX. 5 OHMS @ 75F

CONTROL 10K

Located on front of fan

(J1-3) 4

CV

ROTOR FIELD CIRCUIT

0 V

75A (J1-10)

baffle near top of

(J7-9) 214

4A

(TO AMPHENOL)

baffle on right side of machine.

machine.

(J7-14) 218

PIPE

MODE

279 (J7-6)

CC

SWITCH

7

Relay CR1 and D4 located on fron

ARC

R2

(J7-15) 220

CONTROL 10K

278 (J7-7)

TIG

9

TOROID-

277 (J7-8)

(J7-16) 222

260A (J3-4)

IDLE SOLENOID

SENSES AC

+12 to 14V @ NORMAL OIL PRES. (INPUT)

POWER TO

261A (J3-3)

(J2-9) 224B

ENEGIZED FOR

ACTIVATE

+12 to 14V @ RUN (INPUT)

210

IDLER

(J2-7) 210B

GLOWPLUG

GLOWPLUG SWITCH ENERGIZES

LOW IDLE

(J1-7) 305

IF COOLANT TEMP SWITCH OR OIL PRESSURE SWITCH

Located on wiring behind

SWITCH S7

GLOWPLUGS

ELECTRIC FUEL PUMP AND FUEL

CLOSE, CR1 ENERGIZES OPENING CONTACTS AND

IDLE

receptacles.

(J1-12) 305

SOLENOID HOLD COIL THRU D4. IT

SHUTTING OFF FUEL SOLENOID TO STOP ENGINE.

BLACK

Control board circuits associated with J2 are part

5K (J2-3)(J4-1 to 10)

(J5-1 to 10)

ALSO FUNCTIONS AS AN ENGINE

ENGINE

YELLOW

SOLENOID

223

PROTECTION BYPASS UNTIL OIL

PULL

of engine electrical system and are common to

WELD AMMETER WELD VOLTMETER

305 I.D. JUMPER (Part

PRESSURE BUILDS UP.

PROTECTION

B

ENGINE

0.2 OHM

frame ground (negative battery terminal.

of amphenol plug and

15A BATTERY

S1

RELAY

9

PROTECTION

WHITE

HOLD

Meters display setpoint volts or amps when not welding.

lead assembly.)

LIGHT

11 OHMS RED

CIRCUIT BREAKER

212

RUN-STOP SWITCH

CR1

PL1

215

Meters display actual volts and amps when welding.

209

3

232

Hold function displays actual volts and mpsa for

210

(SHOWN IN RUN)

A

approximately 5 seconds after welding stops.

During this hold display theright most decimal point will

START BUTTON

210

+

blink.

224

115VAC

J

31

SWITCH S2

211

FUEL SOLENOID PULL

D4

HOUR METER

A

32

209

COIL IS ENERGIZED BY

42VAC

I

41A

STARTER SOLENOID.

231

+15V @ LOW IDLE

K

42A

YELLOW

209

225

229

404 (J43-8)

B2

REMOTE

A

77B

WORK

H

21

REMOTE

E

77A

77B

BATTERY

STARTER

WHITE

RED

CONTROL

B

76B

F

76A

CHARGING

+

FUEL

TIMER

CONTROL

76B

INPUT TO

LIGHT

SOLENOID

C

75B

CONTACTOR

75A

BAT

12 VOLT

SOLENOID

ELECTRIC

CIRCUIT

B1

D

2B

G

75B

AMPHENOL

PL2

IGN

PULL

4B

D

4A

4B

BATTERY

STARTER

0.2 OHM

FUEL

GROUND

E

GROUND

C

2A

228

L

HOLD

PUMP

PULL COIL

F

GND-B

B

GND-A

2B

ALTERNATOR

FRAME

MOTOR

11 OHMS

OIL PRESSURE

COOLANT

AMPHENOL

BLACK FUEL

PC BOARD

B4

AMPHENOL

Battery charge lamp will be

Battery voltage:

GROUND

SOLENOID

SWITCH

TEMPERATURE

P/N L11768-1

12.6 volts at rest

AND FUEL

(CLOSES ON

SWITCH

Located next to

on whenever RUN/STOP

14 volts engine

PUMP

LOW OIL

(CLOSES ON HIGH

control board.

switch is in RUN position and

running

ENERGIZED

PRESSURE)

TEMPERATURE

alternator is not charging

FOR RUN

ABOVE 230F)

PROPRIETARY & CONFIDENTIAL: TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

ON 2 PLACE DECIMALS IS ± .02

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

DESIGN INFORMATION

REFERENCE: EQUIPMENT TYPE:

RANGER 305D

PAGE ___ OF ___

MANUFACTURING TOLERANCE PER E2056

1

2

UNLESS OTHERWISE SPECIFIED TOLERANCE

L11943

MACHINE SCHEMATIC

ON 3 PLACE DECIMALS IS ± .002

DRAWN BY:

BAM

SUBJECT:

DOCUMENT

DOCUMENT

MATERIAL TOLERANCE ("t ") TO AGREE

ENGINEER:

BAM

SCALE:

NUMBER:

REVISION:

SOLIDEDGE

EN-168

ON ALL ANGLES IS ± .5 OF A DEGREE

WITH PUBLISHED STANDARDS.

-

NONE

MATERIAL

NA

APPROVAL

2/5/03

PROJECT

CRM33549

L11946

A

DO NOT SCALE THIS DRAWING

APPROVED:

DISPOSITION:

DATE:

NUMBER:

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

RANGER 305D