Lincoln Electric ES 275I specifications G4365-4

ES 275i

311

1

207A

202A

310

4

5

324

-

+

WIRING

WIRING DIAGRAM - RED-D-ARC ES275i

R(T4)

1

1

376

CASE FRONT (REAR VIEW)

W(T4)

6

2

W

THERMAL

OUTPUT

LOCAL

C2

R(T3)

2

3

C3

W(T3)

3

4

327

330

77

D4

Y

R1

3

307

5

J3

J1

6

B

304A

277

310

4

INPUT

W

B

DIAGRAM-

207A

202A

313

8

7

375

317

BRIDGE

209

5

10

380

324

313

7

J10

201

A1

_

308

9

8

303

307

8

204

201

L1

309

7

9

377

REMOTE

_

207A

311

10

10

328

377 376 375

309

6

TP3

C

W -

G +

B

375B

TP2

12

330

308

2

204

F

11

304

318

N.E.

SWITCH PC BOARD

L2

E

207

CONTROL PC BOARD

1

387

B

TP1

+D

2

388

208

4

316

ARC FORCE

L3

209

5

320

ON

SMAW

A

B

S4

208

H1B

7

382

375B

205

J2

8

383

R2

209

206

203A

205

6

229

304A

R222

1

H3A

J4

202A

202

11

380

L3

328

303

304

CODE:11166,

206

207

203A

B(U)

206

203A

0.6 AMP

W221

2

9

75

HOT

327

12

277

OFF

C1

3

76

GTAW

SLOW BLOW

START

WELD

MODE

A1

A

H1

H1B

382

383

H2

208V

L4

H1A

H3A

H4

380-

220-

H3

W(W)

L1

H3C

4

8

415V

230V

77 C A

75

CR1

A

440-

FAN

CR1

H6

H5

R(V)

L2

B

2

6

0

1

575V

460V

L5

N.A.

REMOTE

N.C.

RECEPTACLE

H1C

FAN RELAY

76

H3D

H1D

H1C

202

229

11223

S2A

203

S2B

203

G

POWER SWITCH

FAN

H1D

H1 H2 H3 H4 H5 H6

S1

TP6

PRIMARY RECONNECT SWITCHES

204

(REAR VIEW)

TP4 TP5

J5 1

6 2

3

4

5

(SHOWN IN 380-575V POSITION)

205

320

N.D.

C3

C4

T2 AUXILIARY TRANSFORMER

W 18V U

316

319

SHUNT

H1 H2 H3 H4 H5 H6

S5

N.D.

C1,C2

SWITCH BOARD CAPACITORS, 2200/500

W221

C3,C4

OUTPUT BY-PASS CAPACITORS, .05/600

CR1

FAN RELAY COIL, 12V DC

317

S3

L3

R222

D1A,D1B

OUTPUT DIODE,

384

R3

W

R

OUTPUT

D2A,D2B

OUTPUT DIODE,

208

318

CHOKE

385

D3A,D3B

OUTPUT DIODE,

204

D4

INPUT RECITIER BRIDGE

386

R4

387

388

L1,L2

OUTPUT REACTOR

W

T3

T

R

L3

OUTPUT INDUCTOR (CHOKE)

U

G

-O

I-

H

PRI

T

L4,L5

RF TOROID CHOKES

R

IN

HEAT SINK

T4

R

R1

OUTPUT CONTROL POTENTIOMETER,10K/2

P

X4

3

OUTPUT RECTIFIER

R2

ARC FORCE POTENTIOMETER, 10K/2

X4

X2

R3,R4

OUTPUT LOAD RESISTORS, 100/25

7

C

E

S1

INPUT POWER SWITCH

S

T

L1

205

6

2

O

S2A,S2B

RECONNECT SWITCHES

O

B

X7

BOARDPCSNUBBER

S3

OUTPUT RECTIFIER HEATSINK THERMOSTAT

T

REACTOR

X5381

GND1

U

S4

SWITCH BOARD HEATSINK THERMOSTAT

201

-O

X8

X8

PRI

X1

D1A

D1B

S5

CHOKE THERMOSTAT

IN

CASE

T1

MAIN TRANSFORMER

I-

X1

R

X3

FRONT

LINE CORD

T2

AUXILIARY TRANSFORMER

P

X7

T3,T4

CURRENT TRANSFORMER

L

C

D3A

D3B

GND2

G

E

E

T

X6

TP1,TP2,TP3

INPUT MOV, 660V AC

T1

F

S

CASE

S

T

O

TP4,TP5

OUTPUT MOV, 320V AC

MAIN

O

X3

BACK

BASE

B

TP6

OUTPUT MOV, 150V AC

TRANSFORMER

X6

PROTECTIVE BONDING CIRCUIT

D2A

D2B

X2

L2

F-2

WIRING DIAGRAMS

NOTES:

N.A. MACHINES WITH RED, BLACK AND WHITE POWER CORDS:

FOR SINGLE PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRICAL CODE.

CONNECT BLACK AND WHITE LEADS TO SUPPLY CIRCUIT. WRAP RED LEAD WITH TAPE TO PROVIDE 600V. INSULATION.

FOR THREE PHASE INPUT: CONNECT GREEN LEAD TO GROUND PER NATIONAL ELECTRIC CODE. CONNECT BLACK, RED & WHITE LEADS TO SUPPLY CIRCUIT.

N.B. SINCE COMPONENTS OR CIRCUITRY OF A PRINTED CIRCUIT BOARD MAY CHANGE WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY HAVING A COMMON CODE NUMBER.

X5

REACTOR

N.C. PLACE "A" LEAD ON APPROPRIATE CONNECTION FOR INPUT VOLTAGE. CONNECTION SHOWN IS FOR 575V OPERATION.

N.D. CHOKE THERMOSTAT AND LEAD #319 NOT PRESENT ON EARLIER MODELS.

N.E. LEADS #308 AND #309 MAY BE INTERCHANGED IN J10 CONNECTOR PINS 2 AND 6.

LEAD COLORING CODE:			COMPONENT VALUE
			UNITS:
B-BLACK	U-BLUE
			RESISTORS:
G-GREEN	W-WHITE			OHMS/WATTS
O-ORANGE	Y-YELLOW		CAPACITORS:
R-RED				MFD/VOLTS
CONNECTOR PIN NUMBERS:
1 2 3	7	EXAMPLE: THIS IS PIN 7
		0F CONNECTOR J5
8	14		1 2 3	8
J5	LATCH

VIEW OF CONNECTOR ON PC BOARD ELECTRICAL SYMBOLS PER E1537.

A

G4365-4

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. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.

F-2