Lincoln Electric SVM 122-A service manual Wiring Diagram Codes 9847, LOW Voltage

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NOTE: This diagram is for reference

DUAL & SINGLE VOLTAGE	TO GROUND	230/400 VOLTAGE	TO GROUND	380/500 V.	TO GROUND
UNDER 346 VOLTS	PER NATIONAL	(SHOWN CONNECTED	PER NATIONAL	(SHOWN CONNECTED	PER NATIONAL
(SHOWN CONNECTED FOR	ELECTRICAL CODE		ELECTRICAL CODE		ELECTRICAL CODE
		FOR 230 V.)		FOR 380 V.)
LOW VOLTAGE)

N.B.	H3					N.B.	H3
H2	TO SUPPLY			RECONNECT PANEL			TO SUPPLY			RECONNECT PANEL			N.B.	H3 TO SUPPLY			RECONNECT PANEL
	LINES							LINES
						H2							H2		LINES
X1	L3	L2	L1				L3	L2	L1
						X1								L3	L2	L1
	W		3	9	6							11	X1				3	18
							W		3	9	5			W		3
			2						2
	V						V									2
				8										V			2
232			1		5	232			1	8	4	10	232					17
	U						u							U		1
	CR1			7	4		CR1			7	6	12		CR1			1	16
	CONTACTOR						CONTACTOR							CONTACTOR
																		TO PRIMARY
	233		H1		COILS		233	H1						233		H1
								T0 PRIMARY COILS										COILS
					TO PRIMARY

	H3		220/380/440 VOLTAGE
N.B.	H4
			(SHOWN CONNECTED FOR 220 V.)
	TO SUPPLY		RECONNECT PANEL
H2	LINES
						TO GROUND
X1	L3 L2 L1		11	9	6
						PER NATIONAL
	W	3				ELECTRICAL
		2	10	8	5	CODE
	V
	U	1		7	4
			12
233	CR1					FLEX LEAD
CONTACTOR						JUMPER
	H1					TO PRIMARY COILS

Wiring Diagram (Codes 9847, 9848)

G-2

only. It may not be accurate for all machines

SINGLE VOLTAGE OVER 345 VOLTS

TO GROUND PER

NATIONAL ELECTRICAL

CODE

N.B.	H2	TO SUPPLY
H3		LINES
X1		L3	L2	L1
		W		3
				2
		V
232				1
		U
		CR1
	CONTACTOR
	233			H1

			FAN MOTOR
2A		51	115V
CIRCUIT
BREAKER						10AMP
THIS CONNECTION
DOES NOT APPEAR ON		50				CIRCUIT
220/380/440V AND		52				BREAKER
230/400V MACHINES
							241
10		11	12		42A	SECONDARY
TOP	S			42V		THERMOSTAT
		220V	S115V
PRIMARY		N.C.
7			9	S
AUXILIARY	201		202		203
COILS		21V	21V		21V
	S			S
			S
BOTTOM 4		5	6			T1 MAIN
PRIMARY		8				TRANSFORMER	N.A.
1		2	3
16			18				N.E.
		17

232
32A		H1		X1
31	CONNECT OR
42	INSULATE AS	H2		115V
	SHOWN ON
	INPUT	H3
42	CONNECTION			X2
		H4
2	DIAGRAM
				231
PRIMARY		T2 CONTROL
THERMOSTAT		TRANSFORMER
41
41	231
204	4
			CAPACITOR
	41
CAPACITOR			DISCHARGE
	CR4		RELAY
DISCHARGE
OPTION
	10A	R8	0.5	/50W
	F2 SLOW
	BLOW
DIODE		R7	0.5	/50W

X1 SEC X2 SEC X3 SEC

OPTION

covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.

IDEALARC DC400

			P5																				254			204
		1	220												RECTIFIER			204						C1		+
		2	221						D1			D2	D3		ASSEMBLY									C2		+	31,000MFD
		3	222										D4						REED					C3		+	50V EACH
		4	223																					C4		+
	J5																		SWITCH
		5	225							SCR1		SCR2	SCR3			SHUNT								C5		+
																			CR3
		6	224													+	-
		7	GREEN																						227			204
																205	206
		8	204																							R3
														204				215		216
	SNUBBER												G3				204								7.5	/100W
	BOARD												G2			204										R2
													G1												40	/50W
																									225
												P1	1 2	P3		P2		225
											201	1		4 3		1	209								LEAD NOT PRESENT WITH
																2	214			232					DIODE OPTION
											202	2
																3	217				PILOT
											203	3											ELECTRICAL SYMBOLS PER								E1537
														J3		4	204		W		LIGHT
											204	4	J1
											225	5				5	206			233											7	1
			THERMAL								220	6			J2	6	206					233					5	1	6	1	8	2
											41	7				7	208								4	1			7	2	9	3
			PROTECTION								4	8							S1								6	2	8	3	10 4
			LIGHT													8	213
											2	9							POWER				3	1	5 2		7	3	9	4	11 5
				42
																9	75		SWITCH				4	2	6 3		8	4	10 5		12 6
				Y							240	10
																10	212						4 PIN		6 PIN		8 PIN		10 PIN		12 PIN
																						231
	MODE SWITCH															11	205
																							J3		J6		J5		J1		J2
	FRONT GANG											CONTROL BOARD				12	205				+				CONNECTOR CAVITY
	CV-FCAW/GMAW																								NUMBERING SEQUENCE
																			225	VM -
CC	CV-SUB ARC						ARC CONTROL							P6		STARTING						206			(COMPONENT SIDE OF P.C.
	S4A													31	4	BOARD			205		+				BOARD)
				L1			SWITCH							32	1					AM
			OUTPUT				S5												206		-				NOTES
														228	2	J6
	CV-FCAW/GMAW			CHOKE			MIN. IND. (5)												METERS
CC				1	S									216	3								N.A. CIRCUITRY PRESENT ON
	CV-SUB ARC				2			15 /100W						215	5
											234														CAPACITOR DISCHARGE
														218	6
	S4B							(1)																	ONLY.
				3 F			MAX. IND.		R1
						216		218		219
																							N.B. TAPE UP SEPARATELY
	N.C.
							204 208		209		32A														TO PROVIDE AT LEAST
	217		S4D	224											76 212 210 211 213 77				210			224
	N.O.		ACTUATED				225																		600 V INSULATION.
	234		CV-FCAW/GMAW					R5											75		211
204	219											10A
			ONLY																				N.C. 220V WINDING, PLUG
	N.C. 218			21			10K	/2W				CIRCUIT	N.D.						R4
	N.O.		S4C		S6		ARC FORCE CONTROL					BREAKER							10K	/2W				AND CIRCUIT BREAKER
	214		ACTUATED	VOLTMETER									42			S2			OUTPUT						ARE PRESENT ONLY ON
	204			SWITCH											OUTPUT CONTROL				CONTROL					50/60 HERTZ WELDER.
	228		IN CC ONLY				C6 .0047MFD/1400V				32		32	31		SWITCH
													2	41									N.D. 31 AND 32 ARE NOT
															N.A.			OPTIONAL
	GREEN												4	21											PRESENT ON EUROPEAN
																		MULTI-PROCESS
													77	75								224			MODELS.
STUD																			SWITCH
				21 4		2	31 32	75	76 77		4	S3	76										N.E. CIRCUITRY PRESENT ON
GROUNDING																		WORK		+
																								DIODE OPTION ONLY.
	225										2	OUTPUT
								TS1				TERMINALS
					TS2
					N.A.							SWITCH						ELECTRODE		-
																	4	2
																	TO TERM. TO NEG. TO POS.
																	STRIP		TERM.	TERM.

12-9-94F

L9106

ELECTRICAL DIAGRAMS

G-2