Lincoln Electric SVM158-A service manual Schematic Complete Machine, Return to Section Section TOC

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G-3	ELECTRICAL DIAGRAMS	Enhanced Diagram	G-3
SCHEMATIC - COMPLETE MACHINE

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		INPUT SWITCH
W	WHITE	L1	C
	(BROWN)
INPUT		L2
LINES V	RED		B
	(BLACK)
U	BLACK	L3	A
	(BLUE)
G	GREEN	L3

(GREEN/YELLOW)

GND

CE COLORS IN

PARANTHESYS

SWITCH BOARD

+15

J20-4

609

MAIN

CR1

209

INPUT

RELAY

J20-8

602

RECONNECT SWITCH

206

CR1

205

N.B.

N.C.

T

SNUBBER

+

U

O

BOARD

-

B

4200 uF

J21-6

616

S

-

V/F CONVERTER # 1

0

REACTOR

J21-2

608

6

3

X

S

OUTPUT

I OUT

J90-3

801

J21-1

1001

7

+

S

0

DIODES

+15V

J90-1

802

MAIN TRANSFORMER

J21-5

1002

2

-15V

J90-2

804

H1

AC3

POS

4200 uF

N

X

GND

J90-4

806

-

I

2

-

A

POSITIVE

203

208

X

S

IN-R F

+

TP3

TP2

901B

AC2

901A

CURRENT

C1/TP1

202

3

R1

320V

204

TRANSDUCER

.05uF

TP1

X

250Ohms

160J

AC1

NEG

1

S1

600V

T

X

IN-K B

+

U

TP3

O

21

4200 uF

-

150V

A

-

A

S

MAIN CHOKE 903A

J21-7

605

3

S

4

80J

X

903B

-

NEGATIVE

V/F CONVERTER # 2

2

0

3.5A

CB3

J21-3

610

S

4

xxxxxxx

+

X

THERMOSTAT

C2/TP2

4200 uF

J21-4

N

REACTOR

320V

506

Dashed lines represent

-

-

0

503

.05uF

160J

copper bus connections.

207

J21-8

B

1

B1

600V

X

Shown connected for

201

SNB

506

+15

505

200 - 240 Volt Input Voltage

1020

1010

CONTROL

TRANSFORMER

POWER

PULSE

SOFT

(+)

START

208)

230) 415)

460)

575)

(-)

505

609	J6-9
602	J6-2

616J6-16

608J6-8

1001 J10A-1

1002 J10A-2

801J8-1

802J8-2

804	J8-4
806	J8-6
901	J9-1
903	J9-3

503J5-3

502J5-2

CONTROL BOARD

+15V

MAIN RELAY CONTROL

VOLTAGE / FREQUENCY CONVERTER #1 (+) VOLTAGE / FREQUENCY CONVERTER #1 (-) PRIMARY CURRENT SENSE #1 (-)

PRIMARY CURRENT SENSE #1 (+)

CURRENT FEEDBACK ( 4V=500A )

+15V -15V

CONTROL BOARD COMMON

(+)STUD VOLTAGE SENSE (-) STUD VOLTAGE SENSE

THERMOSTAT

THERMOSTAT

J60-A, J60-B

15

J61

115

J1,J6,J7, J332, J333, P52

1 8

9 16

J31,J33,

1J34,J37

5

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AUXILIARY

TRANSFORMER

CONSTRUCTION MODELS DO NOT HAVE CB1, CB2 OR REMOTE, LEAD 532 GOES TO J22 AND LEAD 541 GOES TO THE CONTROL RECTIFIER IN THE CONSTRUCTION MODEL.

532

3.5A CB2

32 32A

31B

(200- (220-

(380-

(440-

(550-

J22-4 J22-1 J22-2 FAN J22-3

J20-2 FAN J20-6

J20-1

J20-5

J20-7

J20-3

xxxxxxx

H1

H2

H3

H4 H5

H6

502

FAN

716

607

615

611

612

115 VAC

715

FAN

FAN

COM2

115V

COM1

24V

28V

42V

J52-11

J52-1

J52-16

J52-7

J52-14

J52-5

31B

POWER

POWER DOWN SIGNAL

J42-4

407

532

541

+15 (a)

J42-1

412

31

24

54

42

BOARD

MACHINE

+5 (a)

J42-3

408

CONTROL

32A

POWER

GND (a)

J42-5

410

SUPPLY

-15 (a)

J42-2

411

541

54

65B

+5 SPI (b)

J43-3

403

65

J41-2

SPI

+15 SPI (b)

CB1

6A

J43-6

402

+40 VDC

POWER

41A

66

J41-1

SUPPLY SPI GND (b)

J43-12

401

41

+5 RS232 (e)

406

J43-4

RS232

66B

GND (e)

J43-9

405

SUPPLY

41A

+20 (c)

J43-8

CHOPPER

GND (c)

J43-2

POWER

+20 (d)

J43-7

SUPPLY

GND (d)

J43-1

605	J6-5	VOLTAGE / FREQUENCY CONVERTER #2 (+)
610	J6-10	VOLTAGE / FREQUENCY CONVERTER #2 (-)
1010	J10B-1 PRIMARY CURRENT SENSE #2 (-)
1020	J10B-2 PRIMARY CURRENT SENSE #2 (+)
611	J6-11	GND (a)
612	J6-12	SOFT START CONTROL
615	J6-15	PULSE TRANSFORMER GATE DRIVE
607	J6-7	PULSE TRANSFORMER GATE DRIVE
715	J7-15	+ 15 (a)
716	J7-16	FAN CONTROL
407	J4-7	POWERDOWN SIGNAL (HIGH=RUN)
412	J4-12	+15V (a)
408	J4-8	+5V (a)
410	J4-10	GND (a)
411	J4-11	-15V (a)
403	J4-3	+5V SPI (b)
402	J4-2	+15V SPI (b)
401	J4-1	GND SPI (b)
406	J4-6	+5V RS232 (e)
405	J4-5	GND (e)

6 10

J2,J5,J11,

J22,J41,

J311,P55

12

34

J9,J42,P53

1 3

4 6 J8,J20, J21

14

5 8

J4, J43, J331

1 6

712

J10A,

J10B

1

to

to

		24
41 21		75A 76A
42
	H	G
I			F
	N

77

		F
76	A	E	4

		76A		4	76
2 77			553	4A	75	554
	J331-11 J331-10		J331-9 J331-8	J331-6 J331-5	J331-4 J331-3	J331-2

N.D.

J333-16 3316

J333-15 3315

SPI CIRCUIT SPI CIRCUIT SPI CIRCUIT

N.D.

J3-1	(+)15 VOLT SPI
J3-2	(+)5 VOLT SPI
J3-3	/SS
J3-4	CS1

2

CONNECTOR CAVITY NUMBERING SEQUENCE (VIEWED FROM COMPONENT SIDE OF BOARD)

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31	J		K		M	E	77A
				L
					D
		A
32			B
				C
						4A
			2B	2A

WIRE FEEDER REMOTE

	B	D 2
75A		C

6 PIN REMOTE 75

"2"LEAD "77"LEAD 14PIN'S"76"LEAD SOLENOIDCOIL(+) 14PIN'S"4"LEAD 6PIN'S"4"LEAD "75"LEAD 6PIN'S"76"LEAD SOLENOIDCOIL(-)

J333-14 3314

J333-13 3313

J333-12 3312

J333-8 276

J333-7 275

J333-6 277

J333-5 3305

J333-4 3304

J333-3 3303

J333-2

J333-1

	+15V
3303	+15V	+15V			3313
	J60A-1
3315	ON				3316
	J60A-2		R5
	REMOTE
3312	J60A-3		10K/2W		3314
	+15V
3304	J60A-4				3305
WELD TERMINALS			276
			277	275

	+15V		THERMAL
J60B-1	+15V
	+15V
REMOTE
J60B-2		AMPS	VOLTS
	LOCAL
J60B-3
	+15V
J60B-4			DISPLAY PANEL
OUTPUT CONTROL
		SPI

J3-5	CS2	N.D.
J3-6	CS3
J3-7	MISO
J3-8	SCK	J2-1
J3-9	MOSI	J2-3
J3-10	GROUND SPI	J2-4

NOTES :

LEGEND

ALL MACHINES

OPTION

COMPONENT OUTLINE

251

253

254

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AMPHENOLS ARE VIEWED FROM FRONT OF MACHINE

554

GAS SOLENOID

+

553

+10 Volts

graphical representation of potentiometer connection

REMOTE BOARD

J332-16 3216

J332-15 3215

J332-14

J332-13 3213

J332-12 3212

J332-11 3211

J332-7 3207

J332-6 3206

J332-5 3205

J332-4 3204

J332-3 3203

J332-2 3202

J332-1 3201

	LED 1		3212	+15V
				J61-4
3207	J61-3		3206	+10V
				J61-14
		+15V
	LED 2
3202	J61-2		3204	J61-12
					HOT
		+15V		+15V
	LED 3				START
3201	J61-1	+15V	3213	J61-5	J61-13
	LED 4			MODE
				SWITCH
3216	J61-6				3213
	LED 5	+15V
			MODE PANEL
3215	J61-7

CIRCUIT
OR
N.D.		13	25
+10V ARC +10V	251
CONTROL
J61-15
	254
3215	253		14
		1
ADVANCED PROCESS PANEL

N.A. PC BOARD COMPONENTS SHOWN FOR REFERENCE ONLY. ALL COMPONENTS ARE NOT SHOWN.

N.B. INPUT POWER LINE FILTER IS PRESENT ONLY ON "CE" MODELS.

N.C. ON "CE" MODELS, MOV's ARE IN THE INPUT POWER LINE FILTER.

N.D. THE SPI CIRCUIT PIN ASSIGNMENTS ARE SHOWN AT THE CONTROL PCB. THIS PIN ASSIGNMENT IS THE SAME FOR ALL THE SPI CONNECTORS.

ELECTRICAL SYMBOLS PER E1537

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B

G4093

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

V350-PRO