Lincoln Electric SVM135-B service manual Power Wave 455 Power PC Board Schematic, ComF

POWER WAVE 455/POWER FEED 10

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G-14	ELECTRICAL DIAGRAMS	G-14
POWER WAVE 455 POWER PC BOARD SCHEMATIC

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3026 G

		INVERTER POWER SUPPLIES
GND	VOLTAGE	USE	TRANS	BRD
					SEC.
	+5Va	WELD & CURRENT CONTROL			A
					T1
a	+15Va	WELD & CURRENT CONTROL	T1	CTRL		8t
	-15Va	WELD & CURRENT CONTROL			B
comF	+40Vf	WIRE FEEDER	T1	AMPH.		8t
					C
c	+5Vc	CAN	T1	CTRL
e	+5Ve	RS 232

D20

15A

600V

D21

15A

600V

4.710W

R39

L7

.47mH

C12

.0047

400V

C4	TP1
	50V

3315J

100V

+40Vwf

	100
R43
	10W	R51
	100
R40	10W	R50

comF

100

10W

WIRE FEEDER POWER

100

10W

50

B1 "WT"

To

Wire

Feeder

51

B2 "BK"

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J32

1

J32

2

46VAC Rect.& Filtered

J32

4

J32

5

comF

65 Vdc +/- 20%

		1500		1500		1500
	R6	5W	R4	5W	R3	5W
TP2	C7
	.47			C16
320V	630Vdc
				4.7
160J				35V

SWITCH_GND

	1500
R5	5W		Vcc(+15)
	D5
	1N4007		D3
	DZ1	C36	1N4007
	17V	50	R14		+40Vwf
		25V
	5W		270
			5W
						R7	75K.4
					C20		1.00K
					0.1	R8
					50V
			Vcc(+15)
					D14
				C35	1.0A
		Vin + Vc		0.1	30V	R49
				50V		10.0
			OUT			R47
	Vcc(+15)	X6	GND		D15	10.0
			INV IN			R48
					1.0A	10.0
			N.I. IN		30V

DZ4
43V
1W
DZ5
43V
1W	OVER/DOUBLE VOLTAGE
	PROTECTION CIRCUIT

D26

1.0A

DZ6 30V 3.3V

1W

R42

D

Q3

G 38A

250V

S

DZ2

16V

1W

4.7

10W

C31

.0022

400V

7

T1

T1

			R33
			20
			5W
	D6	3A	L3
		600V
		3A	1mH
	D9
		600V
SEC.
12
2t			3A
		D7
			600V
13
		D8	3A
2t			600V
14
2t
15		D10	1N4936
2t		D11	1N4936
16

SEC.	D18	1N4936
17

9

J31

10

J31

Vcc(+15)

1

J31

Test Points

TESTVa

8

J31

WELD & CURRENT CONTROL

D4

+15Va

C15

500mA

.001

400V

IN

X3

OUT

2

J31

C25

R26

2.21K

R25

2.21K

GND

C13

+5Va

C26

0.1

D2

4.7

TESTVa

35V

0.1

50V

500mA

50V

L5

1mH

IN

X1

OUT

7

C3

C6

J31

4.7

R9

1.00K

0.1

243

C10

35V

50V

ADJ

R11

0.1

50V

C2

1.50K

R13

R12

1.50K

C5

C19

-15Va

0.1

4.7

R1

2.21K

R2

2.21K

50V

0.1

4

35V

GND

50V

a

J31

L4

1mH

IN

X7

OUT

D22

3

J31

To

+5Vc

Control

D1

Board

CAN

125mA

L8

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22.1K R22

R17

1.50K

C23

22p

100V

R18

			C21
43K.		C22	1.8
		1.8	20V
2		20V
R21
		R20
	100p	3.32K
C28
	100V
	R32
	133K	C27
15.0K		820p
		50V

1

2

3

4

5

6

7

8

R19

C18

0.1

50V

CLIM	X4	SHUT	16
Vref		Vin	15
I-		OUTB	14
I+	PWM	Vc	13
V+		GND	12
V-		OUTA	11
COMP		SYNC	10
CT		RT	9
	SG3846

82.5K

68.1K

C17

2700p

50V

R36

C34		R38
	C33	475
4.7
35V	0.1
	50V
			Vcc(+15)
				D24
			C32	1.0A
	Vin + Vc		0.1	30V	10.0
			50V
		OUT			R45
	X5	GND		D25	R46
		INV IN		1.0A
					10.0
R37 12.1K		N.I. IN		30V
					R44
		R35			10.0

475

PRI. CURRENT

FEEDBACK

R41

D

Q2

G 38A

250V

S

DZ3

16V

1W

.1 .1

7t

6

PRI. 5

7t

4

4.7

10W

C30

.0022

400V

T1

T1

2t
18	D17	1N4936
	D16	1N4936
	D19	1N4936

SEC.	D13	L6
10
8t	1N4936	1mH
11
		D12
		1N4936

1mH

IN

X2

OUT

11

J31

C14

R15

681

R16

681

C11

GND

C1

35V

0.1

0.1

1000

50V

50V

12

c

J31

D23

+5Ve

30mA

RS232

IN

X8

OUT

6

J31

150

GND

R52

3.32K

R53

3.32K

R54

3.32K

R55

3.32K

R23

3.32K

R24

3.32K

C8

C9

C24

4.7

0.1

0.1

35V

50V

50V

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+40Vwf

R30		R31
750		15.0K
	VOLTAGE	2.21K	R34
	FEEDBACK

PRIMARY SWITCHING CIRCUIT

7W	R28	7W	R27	C29
				0.1
				50V
		SWITCH_GND

5

J31

e

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

GENERAL INFORMATION

LAST NO. USED

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

ELECTRICAL SYMBOLS PER E1537

R- 55

X- 8

T- 1

NUMBER.

C- 36

Q- 3

TP- 2

CAPACITORS =

MFD (

.022/50V

UNLESS OTHERWISE SPECIFIED)

LABELS

RESISTORS = Ohms (

1/4W UNLESS OTHERWISE SPECIFIED)

D- 26

DZ- 6

L- 8

DIODES =

1A, 400V

(UNLESS OTHERWISE SPECIFIED)

SUPPLY VOLTAGE NET

POWER SUPPLY SOURCE POINT

COMMON CONNECTION

FRAME CONNECTION

FILE:

G3026_2E1

EARTH GROUND CONNECTION

Ch'ge.Sht.No.

THE LINCOLN ELECTRIC CO.

EQUIP.

INVERTER WELDERS

TYPE

XC-RW

CLEVELAND, OHIO U.S.A.

SUBJECT

SCHEMATIC, POWER PCB

11-14-97A

SCALE

NONE

SHT.

12-4-98A

LC

2-21-97

CHK.

KJ

SUP'S'D'G.

G 3026

DR.

DATE

NO.

NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro- vided for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.