Lincoln Electric SVM138-A service manual Wiring Diagram-LN-9F GMA, Dec

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G-4	ELECTRICAL DIAGRAMS	G-4
Wiring Diagram-LN-9F GMA

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DIGITAL METER

METER BOARD

601

602

510C

518

510

517

519

560

561

562

VOLTS CONTROL RHEOSTAT

636

10K R3

635

634

633

632

10K R2

631

WIRE SPEED

CONTROL

RHEOSTAT

METER		VOLTS - SPEED SELECTOR SWITCH									31	R1
												2
BOARD
PLUG			517
12								S6
				C2						S5
10			510
								C1
1	601					3 2
			518	5	4		1			N.C.	511
4	602		562						513		512
		510A		6			12			N.O.
3	510B		518	7	8	11				N.C.	514
		518				9 10
6	518								516	N.O.	515
				C3
2	510					560		519	SET-ACTUAL SWITCH
5	517				561
11	519

7560

8 561

9 562

			JUMPER PLUG IS REMOVED AND THE HARNESS
(J6)	(P6)		RECEPTACLE IS CONNECTED TO THE OPTIONAL
			GMA OR BURNBACK TIMER P.C. BOARD PLUG. REPLACE
			JUMPER PLUG IF TIMER IS DISCONNECTED.
			BURNBACK TIMER	B1	B	P	C T2 T1
			P.C. BOARD
(J5)	(P5)		(OPTIONAL)
			GMA TIMER	S S1 B1
	2	620			B	P	C T2 T1
			P.C. BOARD
	1	621	(OPTIONAL)	(P7)*
	8	636
	6	635

9634

7	633	9	4	3	5	6	1	2	10 12 11 7				8
4	632												(J7)
3	631	7	7A	31	4	504		2A	628	500	524A	524
5
CONTROL
RHEOSTAT													7
PLUG
													539B
	S3	S7									S2		541B
									2A				539
667	721
													541
67	21	539B		541B									530B

531				(P9)
PM POWER			3	531
			2	7
P.C. BOARD
			1	7A
			11	530B
			14	521
		*	12	510
			15	510
		(J9)	13	500
			5
	539B		7	540
	541B		6	628
	32A		10	500
	7A		9	530A
	32A		8	530
	7		4	32A
4/10 AMP				(P8)
			3	2A
SLOW BLOW			6	504
FUSE			2
		*
			5	522
		(J8)	9	524A
			8	525
			4
532	527	526	7	529
			1	628
			RED
BLACK		32A	BLACK
				531
				T2
		620	RED	621

21

(P10)

520

525

540

510

628

510A

511

512

524A

522

500

631

632

633

524

7

11N.B.

1

10F

9

13	S
8	*
3	(J10)

2

15

7

14

5

6

4

PM CONTROL

P.C. BOARD

555 510 525

TERMINAL

STRIP

531

32A

7

(P11)

634

635

636

510B

514

515

525

520

510

721

667

500

525

521A

500

521

(P13) N.C.

TRIGGER

P.C. BOARD 620 621

1/8 AMP FAST BLOW FUSE

3VOLTAGE P.C. BOARD

10 WHITE

9JUMPER S

12

7	*	N.A.		F
1
4	(J11)		A	B
	B
2
				Y

6P

8A BLUE

11 JUMPERSS* (J12)

	5
1	5	3	6	2	4	12 7	11 10 8		9	1
2
3
4	500	521	524	530A	500	533 C				522
(J13)							B A	(P12)

530	YELLOW	601
			31
500		602	BLACK
622 623		RED
		RED
			T1
	533

541 539 2 522

GLP

REED

POLARITY

DIRECTION

HOT-COLD

SWITCH	R4 22K
CR4

SWITCH

ELECTRICAL SYMBOLS PER E1537

*CONNECTOR CAVITY NUMBER

SWITCH

N.D. & N.E.

INTERLOCK
SWITCH		32 21 4 2 31 C B A GND
500	534 32A 32
S4
		D E B A C H G F I
GLP		INPUT RECEPTACLE
RESET	3 AMP	(J1)

OUTPUT	510 525 555	32A 539 7A	541	GND 67	529 628 623 622 GND		500
CONNECTOR							534
					G H C D M (J2)	CASE
TACH CABLE	N F E	K B J	A	P L			MAGNETICALLY
					(P2)	GROUNDING	COUPLED
		CONTROL CABLE				STUD
					(P3)

CONNECTIONS AS VIEWED FROM BACK OF RHEOSTAT

NOTES:

N.A. VOLTAGE P.C. BOARD WHITE JUMPER TO BE SHIPPED CONNECTED TO PIN "S" AND VOLTAGE P.C. BOARD BLUE JUMPER TO BE SHIPPED CONNECTED TO PIN "B" .

N.B. CONTROL P.C. BOARD JUMPER TO BE SHIPPED CONNECTED TO PIN "F"

CURCUIT BREAKER

N	F	E	K B J	A P L	G H C	D M	WIRE FEED UNIT
510	525	555	32A 539 7A	541 GND 67	529 628 623	622 GND	(J3)
							CASE GROUNDING STUD

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N.C. JUMPER PLUG IS REMOVED WHEN THE OPTIONAL PULSED POWER FILTER P.C. BOARD HARNESS PLUG IS CONNECTED TO THE VOLTAGE P.C. BOARD. REPLACE JUMPER PLUG IF THE OPTION IS DISCONNECTED.

N.D. NOT PRESENT ON ALL CODES.

N.E. CONNECTED TO THE BUSHING OF THE COMPONENT.

CONNECTION FOR D.C. TYPE POWER SOURCES. FOR OTHER TYPE POWER SOURCES (R3S, SAM,Ô=AND SAF OR SA WITH K224) SEE OPERATING MANUAL.

J13	J5, J8	J6, J7,	J9, J10
4 PIN	9 PIN	J11, J12	15 PIN
		12 PIN
		CAVITY NUMBERING SEQUENCE
		(COMPONENT SIDE OF BOARD)

					541	622	A	(J4)
			BLACK				B
		WIRE FEED						TRIGGER
			WHITE		539	623	C
		MOTOR			67			CONNECTOR
510							D
	BLACK				7A
525							E
	RED				32A
555	BLUE					WELD CURRENT REED SWITCH
529
628
						529	628
						CR2
	BLACK	HALL EFFECT						7A	32A
						67		GAS SOLENOID
	RED	MODULE
	BLUE	X1
R				INPUT CABLE			GUN CABLE		1-10-97G
CLEVELAND, OHIO U.S.A.									L10250

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. It is provided for reference only.	DEC 97
	LN-9 GMA