Lincoln Electric SVM146-A service manual Electrical, CR1 Pilot Drive

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NOTE: This diagram is for reference only. It may not be accurate

MAIN

TRANSFORMER

P1

P2

P3

P4

(WORK)

(NOZZLE)

S2 MAIN WINDING

S1 PILOT WINDINGS

(14:13)

(26:26)

Labeled X4

Labeled X2

Labeled X20

Labeled X40

on board

on board

on board

on board

+32V

EACH

EACH

EACH

B11

B12

EACH

B1

B2

.0015

.0015

J34

J31 10

.0015

.0015

2000V

2000V

3

J31

NOZZLE

R62

2000V

2000V

C11

C1

7

C34

C3

C15

C35

1.21K

D31 +

1 11

9

7

C

5

C

C 2

C 4

C 6

C 8

CR1

CR1

PILOT DRIVE

T12705-56

T12705-56

T12705-56

T12705-56

-

16

3A

3A

D30

A

A

3A

R25

R21 16010W

5.11K

R59

A1

A1

A1

A1

6

4

2.5K

100V

J34

13

D28

D27

A2

A2

D29

15W

Q8

8

R3

R4

R38

20015W

20015W

R1

R23

15W

600V

R60

100V

1W

1A

1000V

A

1

A 3

A 5

A 7

56

1000V

3A

1000V

1.00K

56

1000V

Q7

DZ12

15W

2.5K

D24

15W

1A

12V

3A

D18

DZ11

3.74K

1W

R61

3A

12V

E

600V

PILOT

G

A2

PILOT DRIVE

C

PILOT

+32V

+15V

D23

100

511

R2

1.00K

R55

332

R36

1

10W

2

E

G

D14

D15

R35

Q6

C14

DZ3

C16

45A

DZ1

AUX XFMR

J30

100

15V

27

1200V

C

DZ9

1

R22

3.32K

50V

5W

35V

15V

15V

1W

TP4

C13

C2

1W

LED6

24VAC

75V

50

D19

D20 D21

R65

R66

1.0

20J

50V

PILOT

35V

J30

DZ2

1.5K

1.5K

4

-2V

DZ10

15V

15W

15W

LED1

15V

1W

R50

R51

1W

D16

D17

PILOT DRIVE

1.5K

1.5K

PILOT

C5

+15V

15W

15W

D13

PILOT

R29

R52

R53

R5

C6

ENABLE FROM

+15V

C7

CONTROL

1.21K

1.5K

1.5K

25 5W

BOARD

15W

15W

C25

511

D9

2

OCI1

OCI1

4.75K

C26

7

C4

C30

R30

.0047

.1

1000V

.0047

.0047

3

3000V

EACH

ON = ENABLE

HP2201

HP2201

C19

C22

3000V

3000V

J32

3.74K

.0047

R34

13

50V

CHASSIS

C36

COM

.0047

3000V

-2V

R19

R18

C37

1% 13W

0.001

0.001

1% 13W

ELECTRODE

.0047

3000V

R64

J34

J33

R63

4

J33

TP3

80

+ t

7

480V

15W

REMOTE

J32

TP2

TP1

C33

60V

180J

VOLTAGE

480V

480V

.1

FEEDBACK

180J

180J

400V

WORK

J34

COM

3

J33

NOZZLE

J33

(ELECTRODE)

ELECTRODE

	J31
	4
REMOTE	CHOKE
OK TO MOVE
SIGNAL

B21

4 OUT X1

5	Vin + Vc
1	N.I. IN
2	INV IN
3	GND

3	ELECTRODE SHUNT
	SIGNAL TO
1	CONTROL BOARD

14

2	TRANSFER SHUNT
	SIGNAL TO
4	CONTROL BOARD

SCHEMATIC - OUTPUT PC BOARD

G-8

ELECTRICAL

for all machines covered by this

ISOLATION BETWEEN CIRCUITS ( MINIMUM 0.20'' )

+15V

SOLENOID

ENABLE FROM

SOLENOID ENABLE

+17V

R14

CONTROL

.13

BOARD

CIRCUIT

(AIR)

60V

511

C9

6

D12

+ t

J31

.0047

3.92K

R12

1.50K

R8

1.50K

R6

1N4936

1400V

ON = ENABLE

5

J32

CNY17-3

D

+ t

J31

8

R15

1

OCI2

5

G

Q2

.13

D10

R31

475

4A

60V

100V

C20

Q3

S

2

6

4

1A

R11

1.21K

C31

100V

DZ8

D25

.05

C12

600V

COM

R13

221K

12V

LED3

820p

1W

50V

AIR

SOLENOID

+15V

SOLENOID

ENABLE FROM

CONTROL

BOARD

511

ON = ENABLE

SOLENOID ENABLE				+17V
CIRCUIT (ELECTRODE)
			3.92K	R26
J32		CNY17-3
2
			OCI3
		1		5
D1
		2	6	4
COM	C17		R27	221K
	820p
	50V

C24

DZ7

12V

1W

R32

1.50K	R28
475

1.50K

R58

Q1

1A

100V

R24

C10

D22 .0047

1N4936 1400V

D

Q4

G 4A

100V S

1.21K D26

LED5

	R16
.13
	60V
			7
	+ t	J31
			8
	+ t	J31
	R17
.13
	60V
	C32
.05
	600V

ELEC SOLENOID

DIAGRAMS

manual.

AUX		AUX
	+17V	+17V

J30	POWER SUPPLY					D6	R7		825	R56
2					R33	332
	CHASSIS	+17V			.13					CNY17-3
				J31	60V			TRIGGER	CIRCUIT
CHASSIS										1 OCI4	5
			TRIGGER	1	+ t	D7

J32

3

C38

D2

D3

1

+17V

LED4

TRIGGER SIGNAL

TO

J34

C21

2

6

4

TO CONTROL BOARD

AUX

XFMR

J30

C27

REMOTE

1.21K

3

R10

.0047

TRIGGER

5

AUX

D8

.0047

SHORTED = TRIGGER ON

TP5

C18

3000V

J34

L1

1400V

2.00K

2N4401

OPEN

= TRIGGER OFF

Q5

J31

12VAC

50V

35V

2

R57

R20

C8

15J

1000

5.6mH

221K

8.25K

820p

R9

28mA

D11

C28

C29

50V

6

J30

D4

D5

0.1

2.00K

R54

50V

LED2

AUX

AUX

AUX

COM

FILE NAME: L10918_1A1

GENERAL INFORMATION

LAST NO. USED

J32

4

ELECTRICAL SYMBOLS PER E1537

R-

66

TP-

5

Q-

8

CR- 1

C-

38

DZ-

12

X-

1

L- 1

J32

6

CAPACITORS =

MFD

( .022/50V

UNLESS OTHERWISE SPECIFIED)

LABELS

J33

J34

+15V

J32

NOTES :

RESISTORS = Ohms (

1/4W UNLESS OTHERWISE SPECIFIED)

D-

31

OCI-

4

LED-6

1

2

1

4

8

6

7

DIODES =

1A, 400V

(UNLESS OTHERWISE SPECIFIED)

J32

SUPPLY

VOLTAGE NET

CR1

11

N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE

J32

POWER SUPPLY SOURCE POINT

12

WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY

3

4

5

8

8

NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE

COMMON CONNECTION

4

Vcc

TO: CONTROL

TO: AMPHENOL

80 AMP PLASMA CUTTER

FRAME CONNECTION

BOARD

OCI1

C23

J30

J31

J32

5

9

EARTH GROUND CONNECTION

9

1

1

3

1

5

1

7

HP2201

J30

J31

J32

J32

4

6

6

10

8

GND

5

14

AC POWER

TO: TORCH,

TO: CONTROL BOARD

2

6

10

5

3-19-99

SOLENOID,

CHASSIS

-2V

J34 J34

J32

J32

L 10918

PRO-CUT 80

G-8