Lincoln Electric SVM162-B Schematic Entire Machine below Code 11000 G4075, Return to Section

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G-7	ELECTRICAL DIAGRAMS	G-7
SCHEMATIC - ENTIRE MACHINE - BELOW CODE 11000 (G4075)

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TOROID

						301	+5V
							DECIMAL PT. IN
						302
IN(-)						303	IN (+)
							COM
306	1		1	301	304B	304
							DECMAL PT.OUT
303	2		2			304A
							IN (-)
IN(+)	3		3	304B		306
		METER
205mV BETWEEN	4		4	302
IN(+) & IN(-) IS	5		5
	6		6
205A OR 20.5V

(VIEWED FROM REAR)

TOROID

1J8	1J4
2J8
	5J4
3J8
	2J4
4J8
	4J4
5J8
6J8	9J4
	6J4

10J4

7J4

3J4

8J4

1J6

2J6

TOROID
SCR1 GATE		G1	216
SCR2 GATE		G2	G4
SCR3 GATE		G3	G1		SCR4		SCR1
SCR4 GATE		G4
			G2
SCR1,SCR2 CATHODE 218						MAIN
			220		-		+
SCR3 CATHODE		217
						RECTIFIER
SCR4 CATHODE		216
SCR3,SCR4 ANODE				D1	220A
		220						50HZ MACHINE ONLY
X				FREE WHEELING DIODE SCR3			SCR2
			G3
X
TOROID			217					BYPASS ASSEMBLY
SHUNT (+)	W 221
			218					C4
SHUNT (-)		R 222
							MAIN	50/60HZ MACHINE ONLY
							TRANSFORMER

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TOROID

MAX	CW
	R1
OUTPUT
	10K
		MIN	CW
313A			R4
		OUTPUT
			10K
		313B
	311A			CW
			BALANCE	R2
				10K
			313C

311+10V

312PRESET (0 - 10V)

314+1.5V

320MIN OUTPUT (0 - 1.5V)

322BALANCE (0 - 10V)

316+15V

317REMOTE (+15V)

318POSTFLOW (0 - 15V)

321DISPLAY MIN A (+15V)

315DISPLAY VOLT (+15V)

319STICK (+15V)

313COM

1J9	6J11
2J9
	12J11
4J9	1J11
	9J11
10J9
12J9
6J9
7J9
8J9
11J9
5J9	1J12
9J9
	5J12
3J9

R 222(-)

SHUNT

T1

H5

.0047/ 3KV

MICRO SWITCH ON POLARITY SWITCH

265

W 221(+)

400A/200mV

H4

HIGH

POWER SWITCH

MICRO SWITCH ON POLARITY SWITCH

266

C5

VOLT FEEDBACK, ELECTRODE

H3

MID

252

PT375 ONLY

L1

VOLT FEEDBACK, WORK

253

OUTPUT

X1

H2

LOW

L1

223

L2A

INDUCTOR

STICK OCV BOOST CIRCUIT,

BYPASS PCB

RECONNECT

X13

PRESENT ONLY ON PRECISION TIG 375

PANEL

SCHE. S24206-X

L1A

X2

H1

L2

TOROID

224

DC+

DC+

115VAC IN AC STICK

256

228

AC

AC

MICRO SWITCH

225

225A

DC-

DC-

115VAC IN DC STICK

255

CR3

H1

N.O.

CR3

CR2

OCV BOOST

212

215

CR2

RECTIFIER

AC

265

AC

C1

C2

C3

DC-

257

258

223

DC+

DC- +

DC

PRECISION TIG 375

	REMOTE	317					318
	LOCAL	316
			316A
(SHOWN IN REMOTE)		316B				CW
					POST FLOW	R3
						10K
					313A	313
	MIN A	321
	A		316C		TIG
	VOLT	315			STICK	319
	DISPLAY SWITCH				MODE SWITCH						331 B
CONTROL PANEL					(SHOWN IN STICK)
											331 W
											332 B
	STICK	AUTO BALANCE			REMOTE	GAS		THERMAL			332 W
	(RED)	(GREEN)			(GREEN)	(GREEN)		(YELLOW)			333 B
											333 W
B	W	B	W	B	W	B	W	B	W		334 B
											334 W
	331		332		333		334			335	335 B
											335 W

6J10	3J11
1J10	11J11
	10J11
7J10
	2J11
2J10
8J10
3J10
9J10	1J7
	3J7
4J10
	2J7
10J10	5J7
	4J7

5J10 6J7

227

ONLY

CLOSED

DC

CR3

CR2

AC

8/300

IN DC

N.C.

POWER FACTOR

BOOST

BOOST

R14

226

266

227A

POLARITY

CAPACITORS

250

231C

SWITCH

252

SEE NOTE A

CR3

253

S2

231B

PT375: STANDARD, C1=C2=C3=60/460

PT275: OPTIONAL, C1=C2=50/460

C3 NOT PRESENT

TOROID

BYPASS/STABILIZER

BACKGND FILTER CAP., POS

271

BACKGND RESISTOR

PCB

BACKGND FILTER CAP., NEG

271A

R7

286

BACKGND AC OUT (63.5VAC) IN DC TIG

(SCHEMATIC S22530)

20/100

D2

BACKGND AC IN (63.5VAC)

270

BACKGND DIODE

268

267

X5

T1

5/50

267

63.5V

R8

X6

DC TIG BACKGROUND

220C

220A

BACKGND TRIAC

268

CIRCUIT

CURRENT LIMITING RESISTOR

220B

269

PT375 ONLY

BACKGND RECTIFIER

HOLDING RESISTOR

LED LIGHTS

FREQUENCY ON TIME DOWN SLOPE

TOROID

	R1	NOTE A:
	50/100
		LEAD #250 FROM POWER FACTOR CAPACITORS
HI-FREQ INTENSITY		CONNECTS ACCORDING TO THE INPUT VOLTAGE

	401C			401D
CW			R10	CW
R9		402			405
10K				10K
	403			406
401B
	401A				B
ON
		4-STEP		401
OFF		2-STEP			W
PULSE	404		TRIGGER	411	PULSE
(SHOWN PULSE ON)			(SHOWN IN 2-STEP)		(GREEN)

R12	CW
		407
	10K
BACK GROUND
		408
	R11	CW
			409
		10K
		410

TOROID

402FREQ. (.08 - 15V)

403

405ON TIME (1-15V)

406

407 DOWNSLOPE

404PULSE ON (15V)

401+15V

4112-STEP (15V)

WPULSE LED

ADVANCED CONTROL		6J12
	PCB	3J12
(SCHEMATIC G4039-X)		4J12
(OPTIONAL ON PT275)
	J2	2J12
2J1
3J1	DIP SWITCH (ADVANCED FEATURES SELECTION)
5J1
6J1
7J1
8J1
9J1
10J1
4J1
1J1
11J1
12J1
HOT START TRIMMER

HIGH VOLTAGE

R13

FRONT

WORK

208/230/460

TOROID

TRANSFORMER

3/25

ELECTRODE

200/100

T2

238A

238

240

PRESENT ONLY ON

(STICK WELDING)

LEAD #250 CONNECTS TO "HIGH" TERMINAL ON

HI-FREQ (115VAC)

236

R5

L2

C6

PRECISION TIG 375

RECONNECT PANEL, ALONG WITH CORRECT LEAD

GAS (115VAC)

237

235

236B

FROM MAIN TRANSFORMER (T1)

115VAC IN

233A

S

12.5 OHM TYP.

C7

.0015/12KV

220/380/415

FAN (115VAC) 260

15/250

5.5 OHMS

14.5 KOHMS

SPARK

HIGH FREQ.

LEAD #250 CONNECTS TO THE H5 LEAD OF

TYP.

TYP.

12.5 OHM TYP.

GAP

TRANSFORMER

F

L3

THE MAIN TRANSFORMER (T1)

231E

230/460/575

231D

HI-FREQ CIRCUIT

T3

LEAD #250 CONNECTS TO THE "MID" TERMINAL

239

ON THE RECONNECT PANEL, ALONG WITH CORRECT

LEAD FROM THE MAIN TRANSFORMER (T1)

REAR

460/575

GAS

LEAD #250 CONNECTS TO THE "LOW" TERMINAL

SOLENOID

ELECTRODE

233A

ON THE RECONNECT PANEL, ALONG WITH CORRECT

(115VAC)

(TIG WELDING)

235

SV1

231A

231A 231B

LEAD FROM THE MAIN TRANSFORMER (T1)

CB1

233A

115 V

115V/15A

ELECTRICAL SYMBOLS PER E1537

RECEPTACLE

ADVANCED CONTROL PANEL (OPTIONAL ON PT275)

2J5A	ARC FORCE TRIMMER
3J5A	J3
4J5A		1	2	3	4
5J5A

E				(TOP)	233		232
1	COOLER RELAY
3							X3	LEAD COLORING CODE:	COMPONENT VALUE
2		(12VDC)
			233B
PRECISION	262					COOLER		B-BLACK	UNITS:

REMOTE

RECEPTACLE

U A

10K N B

R C

4J22

1J22 2J23

2J22 3J23

MOVE THIS PLUG FROM

J5 TO J5A FOR ROBOTIC INTERFACE

MAXA

WIPERB

7J5A
1J5A
6J5A	WHEN ADVANCED CONTROL
8J5A
	PCB IS NOT INSTALLED
2J5	DISCONNECT FOR	5J11
	DOUBLE PRE/POST FLOW	13J11
3J5

TIG 375 ONLY

231F

CR4

RECEPTACLE

115VAC

G-GREEN

CAPACITORS:

O-ORANGE

(BOTTOM)

X4

MFD/VOLTS

TOP FAN

BOTTOM FAN

231

T1

R-RED

(115VAC)

FAN

FAN (115VAC)

263

234

U-BLUE

RESISTORS:

TOROID

260

W-WHITE

260A

C8

C9

OHMS/WATTS

COOLER, +12VDC IN TIG WELDING 262

105VAC

Y-YELLOW

PLUGGED TO

.22/400V

.22/400V

COOLER, COMMON

263

COOLER RECEPTACLE

CB2

X14

PRECISION TIG 275 ONLY

CONNECTOR PIN NUMBERS:

220V 2A

B D

3J22

4J23

5J23

MINC

D

4J5	14J11
5J5	4J11

TSTAT	214	212	RECEPTACLE 220V/5A	EXAMPLE: THIS PIN IN
TSTAT			1 2 3	8 CONNECTOR J11 IS "6J11"

EN-170

W E

F

TOROID

TM

OPTIONAL AMPTROL REMOTE CONTROL AND ARC START SWITCH

6J22 7J23

5J22 1J23

PROTECTION

PCB

(SCHEMATIC M16115)

E

F

TOROID

7J5	8J11
1J5
	16J11
6J5
8J5	7J11
	15J11
	CONTROL PCB
	( SCHEMATIC G3908-X)

209

X7

213

215

OPTIONAL

SV2

WATER

50/60HZ MACHINES ONLY

20VAC

SOLENOID

CONTROL BOARD SUPPLY

X8

(115VAC)

9

16

210

T1

SECONDARY TSTAT

KIT

20VAC 201

X9

PRIMARY TSTAT

LATCH

(OF MAIN TRANSFORMER T1)

PRECISION TIG 375

TRIGGER CIRCUIT

X10

VIEW OF CONNECTOR ON PC BOARD

204

ONLY

AUX. WINDINGS OF

MAIN TRANSFORMER T1

THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED

PROPRIETARY & CONFIDENTIAL:

TO OTHER PARTIES OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.

UNLESS OTHERWISE SPECIFIED TOLERANCE

"X" INFO

Chg. Sheet No.

DESIGN INFORMATION

REFERENCE:

EQUIPMENT TYPE:

PRECISION TIG

MANUFACTURING TOLERANCE PER E2056

EDGE

ON 2 PLACE DECIMALS IS ± .02

XB-UF

3-8-2002ADRAWN BY: TN

ON 3 PLACE DECIMALS IS ± .002

SUPERSEDING: SUBJECT:

MACHINE SCHEMATIC

ON ALL ANGLES IS ± .5 OF A DEGREE

ENGINEER: TN

MATERIAL TOLERANCE ("t") TO AGREE

SOLID

WITH PUBLISHED STANDARDS.

SCALE: NONE

DATE: 01-29-02 DRAWING No.: G 4075

DO NOT SCALE THIS DRAWING

APPROVED:

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

®

PRECISION TIG 275