Lincoln Electric SVM153-A service manual Schematic Chopper PC Board, PWM Input

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G-6		ELECTRICAL DIAGRAMS	G-6
SCHEMATIC - CHOPPER PC BOARD
	19462 M
		+15

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B7

PWM

INPUT

B3

				R3
				562
					1	VS	VS	8
					2	IN	X1	7
			R4	R19			OUT
			1.00K	475	3	NC	OUT	6
					4			5
C3	DZ1					GND	GND
0.1	5.1V					MIC4451BN
50V
	1W
						+15
	com
						1	8
				C4	C6	VS	VS
							X1
				1.0	0.1
	1.21K			63V	50V	MIC4451BN
R2						GND	GND
						4	5
2	OCI1	8	7	6
	NC		NC				com
3	1		4	5
				com
					+15
				D5
				150V
				8A
				Q1

D6 1.0A 30V

D7	DZ3
1.0A
	16V
30V
	1W

C7com

0.1

50V

R12

R22

4.75K

4.75K

com

R10

10.0

R11

10.0

R13

10.0

R15

10.0

R17

10.0

R5

10.0

R6

10.0

R7

10.0

R8

10.0

R9

10.0

to + cap

2 5 8 11 14

3C1 C2 C3 C4 C5

G1

		6	G2		A1
	9
			G3
12			G4	M16100-39
15
			G5 E1
				E2	E3	E4	E5

1 4 7 10 13

to heatsink

to + cap

2 5 8 11 14

3C1 C2 C3 C4 C5

G1

6	G2	A2
9
	G3

12M16100-39

G4

15

G5 E1 E2 E3 E4 E5

1 4 7 10 13

to heatsink

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15 to 32 Vac	D1	D2	R14
			4.75K
	R1
			R16
B1	+ t	C5	4.75K		C2	C1
	.24		R18
		500			50	0.1
				DZ2
		50V	4.75K		25V	50V
				16V
B2			R20	1W
	D4	D3	4.75K

com

NOTES :

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.

THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY	THE LINCOLN ELECTRIC CO.
AND IS NOT TO BE REPRODUCED, DISCLOSED OR USED WITHOUT THE EXPRESS PERMISSION OF		THE LINCOLN ELECTRIC CO.

GENERAL INFORMATION

ELECTRICAL SYMBOLS PER E1537
CAPACITORS =		MFD	( .022/50V	UNLESS OTHERWISE SPECIFIED)
RESISTORS = Ohms (			1/4W	UNLESS OTHERWISE SPECIFIED)
DIODES =	1A, 400V		(UNLESS OTHERWISE SPECIFIED)

FILENAME: M19462_1BA

	LAST NO. USED
	R-	22	X- 1
	C-	7	OCI- 1
LABELS	D-	7	DZ- 3

SUPPLY VOLTAGE NET

POWER SUPPLY SOURCE POINT

COMMON CONNECTION

FRAME CONNECTION EARTH GROUND CONNECTION

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UNLESS OTHERWISE SPECIFIED TOLERANCE

Ch’ge.Sht.No.

THE LINCOLN ELECTRIC CO.

EQUIP.

CHOPPER, 300 AMP

ON HOLES SIZES PER E-2056

XC-RW

TYPE

ON 2 PLACE DECIMALS IS + .O2

CLEVELAND, OHIO U.S.A.

SUBJECT

SCHEMATIC

ON ALL ANGLES IS + .5 OF A DEGREE

4-14-2000

ON 3 PLACE DECIMALS IS + .OO2

SCALE

NONE

MATERIAL TOLERANCE ("t") TO

AGREE

SHT.

M 19462

WITH PUBLISHED STANDARDS

LC

3/26/99

CHK.

SUP’S’D’G.

DR.

DATE

NO.

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

COMMANDER 500