Lincoln Electric SP-250 service manual Wiring Diagram for Code 9723, Thumb Switch

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G-11 ELECTRICAL DIAGRAMS G-11

WIRING DIAGRAM FOR CODE 9723 & 10001

SP-250 (DUAL VOLTAGE) - WIRING DIAGRAM

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						A	541B		1			(J7)					CONTROL BOARD									1
						B	539B
2 LINE X 16 CHAR.						C	322		2				*					* (J4)						(J8)	*	2
					(J13)	D	321																			3
									3
ALPHA-NUMERIC						E	325B																			4
									4
											1	2	3	4
						F	324B		5															(J9)	*
LCD	DISPLAY			OPTIONAL SPOOL OR PULL											1	2	3	4	5	6	7	8
									6
					GUN RECEPTACLE				7		R
										(J1)	B																		SP - 250
									8						515	325A	324A	206A	541A	495
										*											542	543	1	2 3 4	5 6				SPOOL GUN
									9
									10																				MODULE
																																	1
AUTO					MANUAL				11
																																	2
								GND	12
									13																								3
																																	6
									14														1		202	1
									15					1		555							2						(J12)				7
																								204A		2
PROCESS						SAVE			16					2		206B							3							*			8
																									203	3
WIRE/														3		515B						206	4										4
									5																	4
GAS														4		325						207	5										5
									3																G1	5
														5								GND	6										9
									1		(J5)*														204	6
										(J2)				6		326						209	7				(J3)						10
MEMORY									7																G2	7
														7		324							8				*		(J11)
1	2	3		4		5			9	*														*		8					*
														8		539							9
									6																	9
														9		541							10	(J6)
									8																	10
														10								205	11
									2																	11	1	2	3	4	5	6	7	8
	SPOT	STITCH	IPM	VOLTS	TOGGLE									11									12
									4																	12
														12								206S	13
TIMERS	SET	SET			4	5
OFF	DISPLAY	DISPLAY												13								325A	14
														14		327						320	15				515	325A	324A	206A	541A	495	542	543
																						208	16

	GAS
	SOLENOID
	GENERAL INFORMATION
541B	ELECTRICAL SYMBOLS PER E1537

321	COLOR CODE:
324B
	B - BLACK
539B
	W - WHITE
322
	R - RED
325B
	U - BLUE
	* INDICATES CONNECTOR CAVITY NO.

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N.F.

KEYPAD MATRIX

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GND

B

R

515B

1

515B

326

1

326

555

2

555

PIEZO

325

2

325

539

3

539

327

3

327

206B

4

206B

ALARM

324

4

324

5

541

6

541

TO

WORK

N.A.

N.C.

W

541

MOTOR/

T

R

515B

327

GEARBOX

P.M.

A

U

555

N.J.

C

324

B

206B

H

325

206

B

539

326

207

N.B.

THUMB

SWITCH

327

320

N.E.

328

325A

N.G.

TO SINGLE PHASE

R.F. FILTER

INC.

DEC.

THERMOSTAT

THERMOSTAT

SUPPLY LINE

L1

S3

S4

326

324

L2

X5

202

TRIGGER

325

X6

204A

W

H4

P2

GND

H2

H3

TO GROUND PER

X7

208

L1

203

LOW V.

HIGH V.

NATIONAL ELECTRICAL

X1

G1

CODE

H1

SCR 1

B

JUMPER

250V

204

470A

L2

L1

L2

X2

SCR HEATSINK

ASBLY

GND.

RECONNECT PANEL

H2

X3

SCR 2

G

250V

X4

470A

H3

G2

N.E.

H1

H4

209

SHUNT

POWER TRANSFORMER

D1

P2

T1

300V

T1

T2

P1

P2

+

85A

H1

-

FAN

LINE

206

S2

MOTORS

SWITCH

THERMOSTAT

S1

205

15 OHMS

R1

206S

C1

C2

C3

C4

C1 THRU C4

100 W

R2

30,000 MFD

2.5K

+

+

+

+

50V

204

OUTPUT

N.H.

10W

CHOKE

207

R.F. CHOKE AS'BLY.

NOTES

N.A. WELDING CABLE MUST BE OF PROPER CAPACITY FOR THE

CURRENT AND DUTY CYCLE OF IMMEDIATE AND

FUTURE APPLICATIONS.

N.B. THIS DIAGRAM SHOWS THE "ELECTRODE" POLARITY "POSITIVE". TO CHANGE POLARITY, TURN THE UNIT OFF AND REVERSE LEAD CONNECTIONS AT CABLE CONDUCTOR STRAP AND WORK STUD.

N.C. CONNECTOR SHOWN GEARBOX SIDE VIEW.
N.E. THERMOSTATS MOUNTED ON CHOKE COIL	.
S2 MOUNTED CLOSEST TO FAN; S3 MOUNTED CLOSEST TO
POWER TRANSFORMER.
N.F. KEYPAD MATRIX SHOWN FRONT VIEW.

N.G. THERMOSTAT S4 MOUNTED ON FAN SENSOR BRACKET

N.H. RESISTOR R2 MOUNTED ON FAN SENSOR BRACKET.

N.J. CONNECTOR SHOWN PIN SIDE VIEW.

CAVITY NUMBERING SEQUENCE

(COMPONENT SIDE OF P.C. BOARD)

1 J1				16	1	TOP
						9
					J2
J3
1	6	1		5	1	4
	J12				J4
					J11
7	12	6		10	5	8
	1	2	1		3
	J7		J9
	J8
	3	4	4	6
	1	7		1		8
	J5		J6

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8 14 9 16

2-28-92B

L8423

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels.

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