Lincoln Electric SVM123-A service manual Wiring Diagram Codes 9919

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G-2	ELECTRICAL DIAGRAMS	G-2
Wiring Diagram (Codes 9919, 9920)

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TO GROUND PER

NATIONAL ELECTRICAL

CODE

	H1
TO	L1	1
3 PHASE
	H2

7

4

5 TO

1CR

				CENTER TERMINAL
				ON FUSE HOLDER
				METER KIT
	N.C.			(OPTIONAL)
						32A
	X1			216
211		T2 H1	+VM-		NEG	31
211				222
		H2	216
START STOP						F1

OUTPUT CONTROL

R1

236	237	75	238
				CC
			SW4
				CVI
				CVS
226	226
SW3

9008

SHT. NO. L

POWER	L2	2
SUPPLY
	L3	3

8

9

6	PRIMARY
	COILS

R3

212

H3 +AM-

SW1 255 H4

X2215

222			21
POS
	SW2		2	32
210
21	4	2	31	32

				230	229	266	215
							221
			76 77		224
73	74	75	76	77

DC1000- DIAGRAM	L8234
	SUP'S'D'G

SINGLE OR DUAL VOLTAGE INPUT PANEL

SHOWN CONNECTED FOR LOW VOLTAGE

271

271		5	7	255
	2CR
		A		B

T.S.2

T.S.3

IDEALARC	WIRING
	.

TO GROUND PER NATIONAL ELECTRICAL CODE

TO T2

TO	1
1CR
	S

T1

2

SS

203

3

SS

205

31

S

32A

S

207

R

257

PILOT 235

LIGHT

233

256

256

257A

266

229

215

224

1		1	221
2		2	222
3		3	230
4	J2	4
5		5	220
6		6

.	SUBJECT	30-92 CHK J.J. REF
CO.
EQUIP TYPE
ELECTRIC OHIO U.S.A.

	H1
TO	L1
3 PHASE
	H3

POWER	L2
SUPPLY
	L3

12	6
10 1	7 4
2	8 5
11

3 9 6

4

13

N.A.

7

5

14

S

204 8

6

15

S

206 9

-

S 208

FAN MOTOR

31SECONDARY THERMOSTAT

32A
215	214
31

CHOKE

THERMOSTAT

73

238

210

215

7	J1	7	233
8		8	74
		9	231
1		10	75
	J3	11	226
2		12	235
		13	255
CONTROL 14			256

P.C. BOARD

THE LINCOLN CLEVELAND, SCALE NONE DRDADDATE7

TO PRIMARY COILS	S
	10
380 VOLTS OR TRIPLE VOLTAGE INPUT PANEL

SS

11 12

B	4	5
A	7	8

6

4CR

9

SHOWN CONNECTED FOR 380 VOLTS					N.B.
TO GROUND PER					TO T2
					TO
NATIONAL ELECTRICAL
					1CR
CODE
	H1
TO	L1	7	4	13
3 PHASE
	H2				TO
POWER	L2	8	5	14
					PRIMARY
SUPPLY
					COILS
	L3	9	6	15

SEC

SEC

4 215

217

R2

210 3CR

OUTPUT

SNUBBER

P.C. BOARD

G1 GATE LEADS

G3 TO FIRING CIRCUIT

G5 P.C. BOARD

SCR SNUBBERS

222		G3	1		1	214
		G6	2		2	203
	222	G1	3	J4	3	206
-		G4	4		4	204
	222	G5	5		5	215
		G2	6	J5	6	215
	220	A	1		7	205
					8	208
		B	2		9	207
		B'	3		10	231
			4	J7	11
		C	5		12
500 AMP		C'	6		1	Y
OUTPUT		A'	7
			8	J6	2	X
	216				3	Z
			FIRING
			CIRCUIT		4
	L1		P.C. BOARD

TO T1 AUXILIARY WINDING

. No.
OTHERWISE SPECIFIED TOLERANCECh'ge. Sht	-19-293G	-19-393D
	SIZES PER E2056	PLACE DECIMALS IS .02 PLACE DECIMALS IS .002 ANGLES IS .5 OF A DEGREE1193C-19-TOLERANCEt (" ") TO AGREE PUBLISHED STANDARDS.

380/ 500 VOLTS OR 460/ 575 VOLTS
INPUT PANEL
SHOWN CONNECTED FOR LOW VOLTAGE
	LEGEND
SW1	INPUT POWER
SW2	ELECTRODE POLARITY
SW3	OUTPUT CONTROL
SW4 WELDING MODE
F1	8 AMP SLOW BLOW FUSE
R1	10K OHM POTENTIOMETER
R2 30 OHM, 300 W
R3 10 OHM, 50 W (20W ON EARLIER MODELS)
T1	MAIN POWER TRANSFORMER
T2	CONTROL TRANSFORMER
L1	LOW CURRENT WELDING CHOKE
1CR	INPUT CONTACTOR

SCR	SCR
1	3

SCR	SCR
2	4

SCR	OUTPUT SHUNT
5	50 MV
			NOTES:
	215 210		N.A. 13, 14, AND 15 CONNECTIONS PRESENT
		+	ON 380/500 AND 460/575 MACHINES
	+ -	1000 AMP	ONLY.
			N.B. 10,11, AND 12 CONNECTIONS NOT
		OUTPUT
SCR			PRESENT ON 380V. OR TRIPLE
6			VOLTAGE MACHINES.
			N.C. CONNECTIONS TO H2, H3, OR H4
			DEPENDS ON INPUT VOLTAGE. SEE
G6	GATE LEADS		INPUT SUPPLY CONNECTION
			INSTRUCTIONS. H4 CONNECTION
G4	TO FIRING CIRCUIT
			APPEARS ON 380V AND TRIPLE
G2	P.C. BOARD

VOLTAGE MACHINES ONLY.

UNLESS	ONHOLE ON2 ON3	ONALL	MATERIAL WITH
THIS SHEET CONTAINS PROPRIETARYINFORMATION	OWNED BYTHE LINCOLN ELECTRICANDCO. IS NOT TO BE REPRODUCED, DISCLOSED OR USED	WITHOUT THE EXPRESS PERMISSION OF	THE LINCOLN ELECTRIC CO.

L	2CR	FAULT PROTECTION RELAY
	3CR	CURRENT ACTIVATED REED SWITCH
9008
	4CR	OUTPUT PILOT RELAY
	ELECTRICAL SYMBOLS PER E1537

CONNECTOR CAVITY NUMBERING SEQUENCE

(VIEWED FROM COMPONENT SIDE OF BOARD)

J3 J6 J4 J2, J7 J5 J1

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

IDEALARC DC1000