Lincoln Electric SVM156-A service manual Schematic Digitial Power Supply PC Board, Capacitor

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G-12	ELECTRICAL DIAGRAMS	G-12
SCHEMATIC - DIGITIAL POWER SUPPLY PC BOARD

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J41

DC Input (+)		2
		J41
		4
		+t
		R55
	Machine Control
		Shut Down
		Capacitor
		J41
		3
DC Input (-)		J41
		1

DZ1

D4

6A

200V

R4 10.0K

C13

1

200V D3

1A

600V

7

T1

6

GND

R2

10.0K

C6

4.7

35V

R27

10.0K

Vref 1

6.19K

C7

0.1

50V

R3

C8

820p

50V

R58

10-55 VDC

Operation				R9
	D22			10.0
	1.0A
	30V			R60
				10.0
				R61
7	VCC	OUT	6	10.0
8	VREF	VFB	2
4	RT/CT	COMP	1	R10	R5
5	GND	CS	3	100K	100K
	X5
				D21
				1.0A
			OV1	30V
	R39			R12
	56.2K			5.62K
	C32

10p

100V

47.5

R8

R57 47.5 R7 47.5

C12

.0015

2000V

Vfb1

475

3W

0.05

1 2

R6 47.5

T1

11 12

D

Q1

G 21A 200V

S

DZ8

18V

3W

R11

10

T1

3

9

T1

4

5

T1

8

D18

6A

200V

C43	C41
100	100
16V	16V

D19

3A

600V

C11	C14
22	0.1
35V	50V

C38	C44
4.7	0.1
35V	50V

C39

0.1

50V

IN

IN

+5V

Machine Control Power Supply

LED2

332 R53

D24

X8

OUT

ADJ

C47	R46
1.0		1.21K
35V		.33W

33.2	R16	R15	33.2
			Vref 1

+15Volts

.750 Amp

1 5

J42

1OCI1

CNY17-3

2	6	4
		Vfb1
1.82K		R52
R14		221K
		C45
		150p
		100V

R50J42

3

+t

.13

60V

+5Volts, .750 Amp

R51 44.2K

				R13	C42
				10.0K	2700p
					50V
			1
			X1	8
		-15Volts, .100Amp	TL431	REF
C40			6
1.0	R48	1.21K				43.2K	5
35V		.33W			R49
							J42
ADJ
OUT		J42					J42
		2					6

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	+5V
Undervoltage
Detect
<30VDC	5
	OCI2
	CNY17-3
J42	4	6
4

R26

1

2

24V

3W

1.00K

D2

1A

600V

30.1 R35 30.1 R36

Operation
30-55 VDC		C31
		.0015
D23		2000V
1.0A
30V
7 VCC	OUT 6	R32

14

T2

1

D

Q2

G 21A 200V

D8

1A

600V

X9
	gnd_mcps
D25
D10
	J43
X3	6

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	DZ2	C49	R56	10.0K	R34
	27V	.022
	.5W				221K
					C27
	DZ3				150p
	27V	gnd_mcps			100V
	.5W
	5.62K	Overvoltage
R45		Shutdown
		> 55 VDC
OV2		OV1
D14		D17
	DZ4	C33
	3.3V	4.7
	3W	35V

C26

1

200V

D15

1A

4600V

T2

11

D1

1A

5600V

T2

10

Vref 2

R1 15.0K

C3	C2
4.7	0.1
35V	50V
	C4
	820p
	50V

IN

C1 C5

4.70.1

35V 50V

IN

C10 C9

4.70.1

35V 50V

8	VREF	VFB	2			15.0
4	RT/CT	COMP 1				R31		Vfb2
5	GND	CS	3		C53	75K	R29
	X4		OV2		.1		100K
					D20	C52
					1.0A	150p
					30V
	R38					R28
	56.2K					5.62K
	C28						R33	249
	10p
	100V
D13
						J43
X7							5
	OUT
	GND
			C30	R44		+5Volts, .100 Amp
			1.0		150
			35V		.33W		CAN
						J43
							10
D12
						J43
X6							4
	OUT
GND
			C29			+5Volts, .100 Amp
			1.0	R25	150
			35V				RS232
					.33W
						J43
							9

S

DZ7

18V

3W

3W	R30
0.05

NOTES :

3

T2

12

2

T2

13

6

T2

9

7

T2

8

D9

1A

600V

C24	C25
4.7	0.1
35V	50V

D16

16A

200V

C37	C36	C35	C34
100	100	100	0.1	R62
16V	16V	16V	50V

D7

1A

600V

C17	C18	C21
4.7	4.7	0.1	R19
35V	35V	50V

D6

1A

600V

C20	C19	C22	R23
4.7	4.7	0.1
35V	35V	50V

IN

150

.33W

2.49K

.33W

2.49K

.33W

			OUT
	ADJ
			C23		R37
			1.0			1.21K
			35V			.33W		15Volts, .250Amps
								SPI
										R40	J43
											3
										+t
										.13
										60V
			LED1
										+5Volts, 3 Amps
R63	150	R64	150								SPI
	.33W		.33W						Vref 2
			332	R41				R43
							15
									R42	44.2K
								1	5
	R17		J43						OCI3
			8						CNY17-3
		+t						2	6 4
	.24								Vfb2
			+20Volts						475K
			.200 Amps
									R21
			Gate Drive
									C46
									150p

J43

2

R24 J43

7

+t

.24

+20Volts

.200 Amps Gate Drive

J43

1

		100V
1.82K		C16
R20	R22
		2700p
	10.0K	50V
1
X2	8
TL431	REF
6

R18 43.2K J43

11

J43

12

FILENAME: G3631-2D2

GENERAL INFORMATION				LAST NO. USED
ELECTRICAL SYMBOLS PER E1537				R-
CAPACITORS =	MFD ( .022/50V	UNLESS OTHERWISE SPECIFIED)		C-
RESISTORS = Ohms (	1/4W	UNLESS OTHERWISE SPECIFIED)	LABELS	D-

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EN-170

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

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

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

DIODES = 1A, 400V	(UNLESS OTHERWISE SPECIFIED)
		SUPPLY VOLTAGE NET

POWER SUPPLY SOURCE POINT

COMMON CONNECTION

FRAME CONNECTION

EARTH GROUND CONNECTION

THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED, DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY, CLEVELAND, OHIO U.S.A.

UNLESS OTHERWISE SPECIFIED TOLERANCE	"X" INFO.	Chg. Sheet No.	DESIGN INFORMATION	REFERENCE:	EQUIPMENT TYPE:	Digital Systems
MANUFACTURING TOLERANCE PER E2056
ON 2 PLACE DECIMALS IS ± .02		6-2-2000A	DRAWN BY: JP\TK
ON 3 PLACE DECIMALS IS ± .002					SUBJECT:	Schematic, Digital Power Supply
ON ALL ANGLES IS ± .5 OF A DEGREE		10-27-2000E	ENGINEER:
MATERIAL TOLERANCE ("t") TO AGREE				SUPERSEDING:		DATE:11-30-98DRAWING No.: G 3631
WITH PUBLISHED STANDARDS.					SCALE:NONE
			APPROVED:
DO NOT SCALE THIS DRAWING

SOLID EDGE

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

POWER WAVE 455/R