Lincoln Electric SVM186-A service manual Electrical Diagrams

Models: SVM186-A

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G-2

ELECTRICAL DIAGRAMS

G-2

WIRING DIAGRAM - COMPLETE MACHINE - ALL CODES (G5646)

 

 

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VOLTAGE RECONNECTION

SEE RATING PLATE FOR SPECIFIC VOLTAGES

230or 400-415 or 575 VOLT CONNECTION (AS SHOWN & AS SHIPPED FROM FACTORY)

H1 and H3 (HIGH) TO POWER SWITCH.

H2 NOT CONNECTED; INSULATE.

208 or 380 or 460 VOLT CONNECTION

H1 and H2 (LOW) TO POWER SWITCH.

H3 NOT CONNECTED; INSULATE.

C1 AND C2 MUST ALWAYS BE CONNECTED

ACROSS TRANSFORMER PRIMARIES

C2

C1

 

115VAC

 

 

 

 

C5

RECEPTACLE

 

 

 

 

 

(BACK VIEW)

C6

380V AND ABOVE

 

 

 

 

 

 

 

 

 

 

 

G

CONNECT GREEN LEAD TO GROUND PER

 

 

231B

 

 

 

B

NATIONAL AND LOCAL ELECTRICAL CODE

 

 

231A

 

 

CONNECT BLACK AND WHITE LEADS

 

 

(L1)

 

 

231

W

TO SUPPLY CIRCUIT

 

 

 

 

 

 

 

 

(L2)

 

 

233

 

232

 

 

 

 

 

CB1

 

 

 

 

 

232A

208V/230V ONLY

TO GROUND PER

 

 

 

 

NATIONAL ELECTRICCODE

 

 

 

 

 

INPUT PLUG (208V/230V ONLY)

10K A-B

AT MINIMUM

OPTIONAL

REMOTE

AMPTROLTM

A

A

 

B

B

 

C

C

L5

D

D

E

E

 

F

 

 

 

REMOTE

 

RECEPTACLE

 

 

FRONT

 

240

GANG

 

AC

D

 

 

 

 

A

 

 

E F

 

C

 

 

 

B

 

POS

S2

 

POLARITY

 

 

 

 

SWITCH

 

284

 

W

H3

(L2)

H2

B

H1

(L1)

 

G

 

S1

 

313

 

 

 

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

 

 

 

 

 

SWITCH

 

314

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHOKE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

236

232A 260 235

240

216A

245 244 209

210 312

311201

204 314 313

G4 220 G2 G1 216 G3 218

217

 

 

 

 

 

4 3 2 1

1211 10 9 8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

 

 

 

 

 

 

J4

 

 

J3

 

 

 

J2

 

 

 

 

 

 

 

 

AUTO

 

 

MODE

 

 

 

 

 

 

 

 

 

BALANCE

G

 

SWITCH

 

 

 

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

POLARITY SWITCH

MICRO SWITCH

 

 

 

 

 

 

 

 

G

R

 

AC

A-C, D-E, B-F

OPEN

 

 

 

 

 

 

AC

 

 

TIG LED

STICK LED

 

DC+

B-D, C-E, A-F, G-H

CLOSED

 

 

 

 

 

 

 

 

 

DC-

B-D, A-E, C-F, G-H

CLOSED

 

 

 

 

 

BALANCE

 

 

 

 

REAR GANG

MICRO-SWITCH

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

NC 312A

312

 

 

 

 

 

 

 

 

 

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

311A

311

 

 

 

 

PULSE

 

DIGITAL

 

 

S2A

 

 

 

 

 

 

DC

 

 

 

 

 

DISPLAY

 

 

 

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

PULSE

G

 

 

 

 

 

 

 

 

 

 

 

 

FREQ

 

 

 

 

 

1

 

 

 

 

 

 

 

LED

 

 

 

 

THERMAL

J1

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

POSTFLOW

 

LED

Y

 

 

(REAR VIEW,

 

 

A

1

 

 

 

 

 

 

SHOWN IN AC POSITION)

 

 

 

CONTROL

 

 

 

 

 

 

C

2

 

 

 

OUTPUT

 

 

 

 

 

 

B

3

J5

 

 

 

 

 

 

 

 

 

 

 

D

4

 

 

 

 

 

CONTROL

 

1

285

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

E

6

 

 

 

 

 

 

 

J6

2

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

CONTROL PC BOARD

4

236

R3

236A

C4

W 221

R 222 L4

231B

237

115VAC

T2

 

 

 

 

 

 

 

 

245

244

 

 

 

 

 

 

 

 

 

R4

R5

 

 

 

 

P7

4

3 2 1

 

 

 

 

 

 

 

 

J7

220

220A

218A

 

 

 

 

 

G4

G3 G2 G1

 

H3 (HIGH)

 

 

 

 

220A

 

 

 

 

 

 

 

 

 

 

H2 (LOW)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H1

 

 

 

 

SCR1

 

 

 

 

 

 

 

 

G1

 

 

 

 

201

X3

 

 

 

 

 

 

 

 

 

 

 

217

 

 

AC

 

 

TRIGGER

18VAC

 

 

 

 

 

260

231A

 

 

 

 

SCR2

 

204

X4

 

 

 

 

 

 

 

 

 

 

 

 

209

X5

 

 

 

 

G2

218

 

 

 

POWER

18VAC

 

 

 

 

 

 

218A

 

 

210

X6

X8

232

 

 

 

 

 

 

 

 

)

(

 

 

 

 

X1

 

 

 

 

+

 

 

FAN

 

 

115VAC

 

 

 

 

 

 

 

 

78VAC

 

 

 

 

 

 

115VAC

 

 

X2

X7

231

 

 

 

 

 

 

 

 

 

G3

 

 

 

 

 

 

T1

 

 

216

SCR3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

216A

 

 

X2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G4

 

 

 

 

 

 

 

 

 

SHUNT

SCR4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

_

(

 

 

 

 

 

 

 

 

 

)

 

 

 

 

 

 

 

W 221

D1

 

 

 

 

 

 

 

 

POS

 

 

 

 

 

 

 

 

R 222

 

 

 

 

 

 

L1

 

 

 

 

DC

 

 

 

GAS VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

235

SV1

WORK

ELECTRODE

285

284

L3

L2

239

238

 

SPARK

 

GAP

ARC

 

STARTER

C3

AS'BLY

 

T3

BYPASS/

STABILIZER

PC BOARD

284A284B

R2

 

R1

 

 

 

285A285B

C1,C2

BY-PASS CAPACITORS, .0047/250VAC

C3

HIGH VOLTAGE CAPACITOR, .0025/10kV

C4

PHASE SHIFT CAPACITOR, 15/250VAC

C5,C6

BY-PASS CAPACITORS, .22/400VDC

CB1

20A CIRCUIT BREAKER(208V/230V ONLY)

 

6A CIRCUIT BREAKER (380V AND ABOVE)

D1

FREE WHEELING DIODE

L1

OUTPUT INDUCTOR (CHOKE)

L2,L3

HIGH FREQUENCY INDUCTORS

L4,L5

RF TOROID CHOKES

R1,R2

HOLDING RESISTORS, 100/100W

R3

PHASE SHIFT RESISTOR, 200/100W

R4,R5

MICRO START RESISTORS, 12/100W

S1

INPUT POWER SWITCH

S2

POLARITY SWITCH

S2A

MICROSWITCH ON POLARITY SWITCH

S4

MAIN CHOKE THERMOSTAT

SCR1,2,3,4

MAIN POWER SCR'S

SV1

GAS SOLENOID VALVE, 115VAC

T1

MAIN TRANSFORMER

T2

HIGH VOLTAGE TRANSFORMER

T3

HIGH FREQUENCY TRANSFORMER

LEAD COLORING CODE:

COMPONENT VALUE

UNITS:

B-BLACK

R-RED

 

RESISTORS:

 

OHMS/WATTS

G-GREEN

W-WHITE

CAPACITORS:

 

 

 

MFD/VOLTS

CONNECTOR PIN NUMBERS:

 

 

EXAMPLE: THIS IS PIN 7

1 2 3

7

OF CONNECTOR J4

 

 

8

14

 

 

J4

LATCH

 

 

 

VIEW OF CONNECTOR ON PC BOARD

ELECTRICAL SYMBOLS PER E1537.

Return

Return

R

CLEVELAND , OHIO

G5646 A

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.

PRECISION TIG® 225

Page 98
Image 98
Lincoln Electric SVM186-A service manual Electrical Diagrams

SVM186-A specifications

The Lincoln Electric SVM186-A is a versatile and highly efficient welding machine that stands out in the competitive landscape of industrial welding equipment. Designed to meet the needs of both professionals and hobbyists, this machine combines advanced technology with robust construction, delivering outstanding performance in various welding applications.

One of the standout features of the SVM186-A is its multi-process capability. This welding machine can handle MIG, TIG, and Stick welding processes, making it suitable for a diverse range of projects, from light fabrication to heavy-duty work. This flexibility reduces the need for multiple machines, saving time and space for users who require versatility in their welding operations.

The SVM186-A is powered by a reliable and durable inverter technology, which ensures a stable arc and efficient operation across different materials, including stainless steel, aluminum, and mild steel. This inverter technology not only enhances performance but also reduces energy consumption, making it an environmentally friendly choice.

Another notable characteristic of the SVM186-A is its user-friendly interface. The digital display provides real-time information on voltage and wire feed speed, allowing welders to easily adjust settings for optimal results. This intuitive control panel design makes it accessible for both novice welders and seasoned professionals who value precision.

The machine is also built with safety features in mind. It comes equipped with overcurrent protection and thermal overload protection to prevent damage during operation. This ensures that users can work confidently, knowing that the equipment is designed to handle demanding tasks while prioritizing safety.

Portability is another advantage of the SVM186-A. Weighing in at a relatively light weight compared to other industrial welders, this machine is designed for ease of transport. Whether working on-site or in a workshop, welders can easily move the equipment as needed.

In summary, the Lincoln Electric SVM186-A is a sophisticated welding machine that merges technology and practicality. Its multi-process capability, inverter technology, user-friendly interface, safety features, and portability make it a top choice for those seeking dependable and efficient welding solutions. Whether for professional fabrication or personal projects, the SVM186-A is equipped to handle the demands of modern welding tasks with exceptional ease and effectiveness.