Lincoln Electric TIG 175 PRO manual Wiring Diagram

WIRING DIAGRAM - SQUARE WAVE TIG 175 PRO (240/380/415/1/50/60)

20

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VOLTAGE RECONNECTION

415 VOLT CONNECTION (AS SHOWN)

CONNECT COPPER LINK FROM POWER SWITCH STUD TO H4. TIGHTEN NUTS.

380 VOLT CONNECTION

CONNECT COPPER LINK FROM POWER SWITCH STUD TO H3. TIGHTEN NUTS.

240 VOLT CONNECTION

CONNECT COPPER LINK FROM POWER SWITCH STUD TO H2. TIGHTEN NUTS.

C1 AND C2 MUST ALWAYS BE CONNECTED ACROSS POWER SWITCH.

L1 L2

C1 C2

H2 H4

H3 H1

W 221

R 222

)-(

220

SCR1

G1

217

SCR2

	H4	(415V)
	H3	(380V)
	H2	(240V)
	H1
R	209	W	X3
			S
		18VAC
U	210	B	F
			X4
W	201	W	X5
		18VAC
W	204	W	X6
B	230	B	X7
115VAC		115VAC
FAN			B X8
B	232
B

T1

X1

S

78VAC

F

X2

G2

L1

SQUARE WAVE TIG 175 PRO

POLARITY

SWITCH

MICRO SWITCH

218

AC

A-C,

D-E,

B-F

OPEN

DC+

B-D,

C-E,

A-F, G-H

CLOSED

(+)

FRONT GANG

DC-

B-D,

A-E,

C-F, G-H

CLOSED

D

L2

G3

S2A

NO

H

SCR3

E

A

NC

TOROID

F

G

216

C

(-)

(+)

G4

POS

222R

221W

G4

216

220

G3

G2 218

G1

217

POWER

"ON"

LIGHT

314

SCR4

B

X1

313

231

W

233

PL1

)-(

S2

POLARITY

D1

(REAR

VIEW,

CURRENT

CONTROL

SWITCH

SHOWN

IN

AC POSITION)

J1

J2

J3

R1

312

277

R2

276

B

B

244

311

275

J4

242

STICK

BYPASS/

241

S3

STABILIZER

233

243

PC BOARD

275

MODE

SWITCH

231

(

STICK

-

CLOSED

276

TIG -

OPEN )

243

244

277

TIG

THERMAL LIGHT

S

L3

C3

R

241

Y

T3

SPARK

T4

B

242

TL1

115VAC

GAP

F

J6

E

A

A

L4

D

J5

B

B

F

237

ARC

STARTER AS’BLY

C

C

C

A

D

D

R3

C4

B

E

E

10K

A-B

F

F

AT

MINIMUM

236

201

204

235

234

238

232

230

210

209

236B

W

W

B

B

U

R

REMOTE

REMOTE

TM

236A

RECEPTACLE

AMPTROL

238

SV1

236

236A

J4

234

235

ELECTRICAL

SYMBOLS

PER

E1537.

CRM30796

L10538-1

WIRING DIAGRAM

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