Lincoln Electric SVM100-A service manual Machine Schematic Square Wave TIG, 6 a 0 a 7 a 8 a 3 C

Section TOC

Master TOC

ELECTRICAL DIAGRAMS G-10

MACHINE SCHEMATIC — SQUARE WAVE TIG 255

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	9 J 5
	4 J 5
	1 J 5
	2 J 5
	3 J 5
	8 J 5
	6 J 5
C	4 J 6
	1 1 J 6
	5 J 6
O	1 2 J 6
	2 J 6
	8 J 6
	1 J 6
	3 J 6

S C R 4 C A T H O D E

S C R 4 G A T E

S C R 1 G A T E

S C R 2 G A T E

S C R 3 G A T E

S C R 3 C A T H O D E

S C R 1 & S C R 2 C A T H O D E

A C / D C M I C R O S W I T C H

A C / D C M I C R O S W I T C H

E L E C T R O D E S E N S E

W O R K S E N S E

R E M O T E C O N T R O L H I G H

R E M O T E C O N T R O L W I P E R

R E M O T E C O N T R O L L O W

A R C S T A R T S W I T C H A R C S T A R T S W I T C H

9 J 1 1

4 J 1 1

1 J 1 1

2 J 1 1

3 J 1 1

8 J 1 1

6 J 1 1

4 J 1 2

1 1 J 1 2

5 J 1 2

1 2 J 1 2

2 J 1 2

8 J 1 2

1 J 1 2

3 J 1 2

P

R

P

O

C

T

E

1 0 J 1 0

4 J 1 0

1 J 1 0

1 2 J 1 0

2 J 1 0

3 J 1 0

9 J 1 0

7 J 1 0

4 J 1 3

1 2 J 1 3

5 J 1 3

1 3 J 1 3

2 1 6 A

G 4

G 1

2 2 0 A

G 2

G 3

2 1 7 A

2 1 8 A

3 0 4

3 1 2

3 0 5

3 1 3 C

R E M O T E

R E C E P T A C L E

S C R 4 C A T H O D E ( M A I N R E C T I F I E R A C 1 ) S C R 4 G A T E

S C R 1 G A T E

M A I N R E C T I F I E R -

S C R 2 G A T E

S C R 3 G A T E

S C R 3 C A T H O D E ( M A I N R E C T I F I E R A C 2 )

S C R 1 & S C R 2 C A T H O D E ( M A I N R E C T I F I E R + ) A C / D C M I C R O S W I T C H

A C / D C M I C R O S W I T C H

E L E C T R O D E S E N S E

W O R K S E N S E

	S C R 4
	-	M A I N
D 1		R E C T I F I E R
1 5 0 / 4 0 0	S C R 3

O U T P U T

I N D U C T O R L 1

S H U N T 4 0 0 A / 2 0 0 m V

S H U N T ( - )

S H U N T ( + )

S C R 1

+

S C R 2

M A I N

T R A N S F O R M E R

T 1 H 5 H 4

H 3

X 1

H 2

X 2

H 1

C 8

R E C O N N E C T P A N E L

H 1

C 4 C 5

5 0 / 4 6 0

2 5 0

S E E N O T E A

C 9

. 0 0 4 7 / 3 K V

L 2

INPUT

LINES

L 1

to Section TOC

to Master TOC

N	1 0 J 6
	3 J 8
	9 J 8
T	1 J 8
	7 J 8
	2 J 8
	6 J 8
R	1 2 J 8
	5 J 8
	1 1 J 8
	4 J 8
	1 0 J 8
O	3 J 4

T 2

B	2 4 V A C
B
R
	1 8 V A C	4 3 2
W
	1 8 V A C	1 1 5 V A C
R
O		4 3 3
	1 6 V A C
O
U
	1 6 V A C
U
Y
	1 6 V A C
Y
1 1 5 V A C F O R H I - F R E Q		4 3 2 B

1 0 J 1 2

8 J 1 4

4 J 1 4

3 J 1 4

B

C

O

T

A

I

R

O

D

N

2 J 1 3

9 J 1 3

1 J 1 3

1 1 J 1 3

3 J 1 3

3 J 1 5

2 J 1 5

3 0 2	A	U
3 0 9	B	N	1 0 K
3 0 1	C	R
3 1 1	D	B
3 0 3	E	W
	F	N O C O N N E C T I O N
	2 3 6
2 3 5

R E M O T E

C U R R E N T

C O N T R O L

T M

O P T I O N A L A M P T R O L R E M O T E

C O N T R O L A N D A R C S T A R T S W I T C H

R E M O T E

A R C S T A R T S W I T C H

S 2 A

D C -

C L O S E D

I N D C

		D C
D C	A C	A C
A C		A C
D C+		D C -
	5 0 / 1 0 0
	R 1
C 1

D C+

P O L A R I T Y S W I T C H

S 2

Return

Return

2 J 4

5 J 4

1 J 4

H I - F R E Q C O N T R O L 1	4 3 5
H I - F R E Q C O N T R O L 2
	4 3 6
1 1 5 V A C F O R S O L E N O I D S
	4 2 9
1 1 5 V A C F O R S O L E N O I D S

2 J 1 4

6 J 1 4

1 J 1 4

6 J 1 5

1 J 1 5

5 J 1 5

2 3 7

2 2 9

2 3 3

R 2

4 / 2 2 0

2 5 / 2 5

L 4 J 4

4 3 2 A

5 J 1 4

4 J 1 5

2 3 2 A

to Section TOC

to Master TOC

	2 J 7
	1 J 7
P	6 J 6
	1 3 J 6
C	1 J 3
	2 J 3
	9 J 3
	1 0 J 3
	1 1 J 3
	1 2 J 3
	1 3 J 3
	1 4 J 3
B	1 5 J 3
	1 6 J 3
	4 J 3
	5 J 3
	7 J 3
	3 J 3
O	6 J 3
	8 J 3

R	2 2 2	S H U N T ( - )
		S H U N T ( + )
W	2 2 1

( - )

PIEZO

( + )BUZZER

L E D ( + )

L E D ( - )

D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7

V D D

V o

R / W V S S R S

E

S H U N T T O R O I D L 2

LCD	2 3 3 A
DISPLAY
	P L 1
	2 3 0 E

H I G H

V O L T A G E

T R A N S F O R M E R

T 3

R 3	R 4	2 3 9 A	C 3	. 0 0 1 5 /
2 0 0 / 1 0 0	2 0 0 / 1 0 0			1 2 K V

S	L 3
2 3 5 A	S P A R K	H I G H F R E Q .
C 2 1 5 / 2 5 0	G A P	T R A N S F O R M E R
F	L 4

H I G H	2 4 0
F R E Q U E N C Y
C I R C U I T

BYPASS

PC BOARD

T 4

N O T E A :

L E A D # 2 5 0 F R O M P O W E R F A C T O R C A P A C I T O R S

C O N N E C T S A C C O R D I N G T H E T H E I N P U T V O L T A G E

2 0 8 / 2 3 0 / 4 6 0 , 2 0 0 / 3 8 0 / 4 4 0

L E A D # 2 5 0 C O N N E C T S T O " H I G H " T E R M I N A L O N

R E C O N N E C T P A N E L , A L O N G W I T H C O R R E C T L E A D F R O M M A I N T R A N S F O R M E R ( T 1 )

2 0 0 / 2 4 0 / 4 0 0 , 2 2 0 / 3 8 0 / 4 1 5 . 3 8 0 / 4 1 5 / 5 0 0

Return

Return

A	1 J 1
	2 J 1
	3 J 1
	4 J 1
	5 J 1
	6 J 1
R	7 J 1
	8 J 1

E L E C T R O D EW O R K

R O W 1	1 J 9
R O W 2
	2 J 9
R O W 3		KEYPAD LED
	4 J 9			2 2 9 A
	3 J 9
C O L 4	5 J 9	PC BOARD
C O L 2				W A T E R
C O L 3	6 J 9		G A S
	7 J 9		S O L E N O I D S V 1S V 2 S O L E N O I D
C O L 1
	8 J 9

2 3 0 B 2 3 0 C

L E A D # 2 5 0 C O N N E C T S T O T H E H 5 L E A D O F T H E M A I N T R A N S F O R M E R ( T 1 )

2 3 0 / 4 6 0 / 5 7 5

L E A D # 2 5 0 C O N N E C T S T O T H E " M I D " T E R M I N A L O N T H E R E C O N N E C T P A N E L , A L O N G W I T H T H E H 3 L E A D F R O M T H E M A I N T R A N S F O R M E R ( T 1 )

E L E C T R I C A L S Y M B O L S P E R E 1 5 3 7

Section TOC

Master TOC

D	1 J 2
	3 J 2
	5 J 2
	7 J 2
	9 J 2

2 J 2

4 J 2

6 J 2

8 J 2

R O W 1

R O W 2

R O W 3

R O W 4

R O W 5

C O L 1

C O L 2

C O L 3

C O L 4

KEYPAD

	C B 1
	1 1 5 V / 1 5 A
2 3 1	2 3 0

2 3 0 D	X 3
F A N

1 1 5 V A C	2 3 2 B
R E C E P T A C L E		X 4
	2 3 2

C 7	C 8	C B 2	2 2 0 V
. 2 2 / 4 0 0 V	. 2 2 / 4 0 0 V
		2 2 0 V / 2 A	R E C E P T A C L E

	5 1		X 5
2 3 0 E		5 2	5 2 A

L E A D C O L O R I N G C O D E :				C O M P O N E N T V A L U E
B - B L A C K				U N I T S :
G - G R E E N				C A P A C I T O R S :
O - O R A N G E
				M F D / V O L T S
R - R E D
U - B L U E				R E S I S T O R S :
W - W H I T E				O H M S / W A T T S
Y - Y E L L O W
C O N N E C T O R P I N N U M B E R S :
				E X A M P L E : T H I S P I N I N
1	2	3	8	C O N N E C T O R J 1 0 I S " 6 J 1 0 "
9			1 6	1 2 3	1 6

Return to

Return to

5 0 / 6 0 H Z M A C H I N E S O N L Y

L A T C H

V I E W O F C O N N E C T O R O N P C B O A R D

S Q U A R E W A V E T I G 2 5 5

	S C H E M A T I C - M A C H I N E	A
3 - 1 0 - 9 4		G 2 7 3 6

NOTE: This machine schematic is provided for reference only and may not be totally applicable to every code covered in this manual.

SQUARE WAVE TIG 255