Lincoln Electric SVM123-A service manual Operating Schematic

Page 108

Section TOC

Master TOC

G-3

ELECTRICAL DIAGRAMS

G-3

Operating Schematic

 

 

Return to

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Return to

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2147

G

 

L3

L2

L1

CURRENT REED SW.

CLOSED WITH OUTPUT CURRENT

73

74R1

76

77

TS 3

5J11

CC1J1

3CR CVI

215CVS S4-B 215

CCS4-A

CVI

6J2

CVS7J2 8J1

 

10J1

 

11J1

 

8J2

S3

 

CC

 

CVI

3J1

 

CVS

1J2

 

S4-C

CC4J2

CVI

CVS

S4-B

 

 

 

255

 

 

 

START

 

STOP

 

 

 

 

 

271

 

 

 

 

 

 

 

211

212

2CR

 

 

 

H3

 

R3

 

 

1CR

 

 

 

 

 

 

 

 

H2

120VAC

 

 

1CR

R

H1

256

 

 

257

 

 

T2

 

SECONDARY PRIMARY

 

 

 

14J1

13J1

5J2

 

220

 

 

 

 

221

256

255

215

+55V

 

STARTING LOGIC

 

 

 

 

POWER SUPPLY

+16V

 

- 6.2V

 

- 10V

SET POINT

 

229

 

73

CONTROL PCB

74

75

 

226

 

 

FAULT DETECT.

238

 

230

 

266

CONTROL AMP

 

 

231

VOLTAGE FEEDBACK

 

224

 

222

SHUTDOWN

 

 

235

CURRENT FEEDBACK

OVERLOAD DETECT.

 

 

 

236

210

215

 

222

216

 

 

 

 

 

S2

 

 

 

 

1CR

 

1CR

21

 

 

 

 

 

 

 

 

1

 

 

2

 

 

 

 

 

 

 

 

 

 

203

4

 

 

 

 

 

 

TO GROUND

 

 

 

 

 

4CR

 

 

 

4

 

 

5

2

 

 

 

 

 

 

 

7

 

 

8

 

 

 

 

 

 

 

 

 

 

31

 

 

 

 

31

 

 

10

 

204

11

 

 

 

 

 

 

 

TI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

FAN MOTOR

 

 

120VAC

 

 

 

 

 

 

TS 2

 

F1

 

 

32A

 

 

 

 

 

 

 

8A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCR1

 

 

 

 

 

 

 

 

 

 

 

 

 

SCR2

 

 

1J5

214 FIRING BD. ENABLE

 

 

 

 

 

 

 

 

5J5

 

 

 

 

 

 

 

 

215

 

 

 

 

 

 

 

 

 

 

 

6J5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

215

 

 

 

 

 

 

 

 

 

 

204

4J5

 

2J6

X

SCR1 & SCR2

 

GATE DRIVE

 

3J4

 

 

2J5

 

 

FIRING CIRCUIT

G1

 

 

 

203

75 VAC

1J7

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

231

8J7

A'

 

G2

GATE DRIVE

6J4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

206

3J5

 

1J6

 

SCR3 & SCR4

 

 

 

 

 

 

 

7J5

75 VAC

Y

 

 

 

 

 

 

 

205

 

FIRING CIRCUIT

G3

GATE DRIVE

1J4

 

 

 

 

 

 

2J7

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

231

 

 

 

GATE DRIVE

 

 

 

 

 

 

5J7

B'

 

G4

4J4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9J1 FIRING SIGNAL

 

10J5

 

 

 

 

 

 

 

 

 

 

 

 

8J5

231

3J6

Z

 

 

 

 

 

 

 

208

6J7

 

 

GATE DRIVE

 

 

 

 

9J5

75 VAC

 

C

G5

5J4

 

 

 

207

5J7

 

C' SCR5 & SCR6

 

 

 

 

 

 

 

 

GATE DRIVE

 

 

 

 

 

 

 

 

FIRING CIRCUIT

G6

2J4

 

 

235

 

 

 

 

 

 

 

 

 

 

 

 

12J1

 

 

 

 

 

 

 

 

 

 

 

 

7J1

2CR

FIRING PCB

 

 

 

 

 

 

 

 

 

 

 

 

236

 

 

 

 

 

 

 

1CR

3

205

6

9

206 12

SCR3

SCR4

31

32A

207

208

214

4CR

R2

 

OUTPUT

 

216

 

SNUBBER

 

 

 

 

PCB

 

 

4CR

 

 

SCR5

 

4CR

 

OUTPUT

 

 

 

 

 

215

 

SHUNT

SCR6

 

 

215

210

50mV @ 1300Amps

222

"-"OUTPUT STUD

500 AMP OUTPUT

OUTPUT CHOKE

"+" OUTPUT STUD 210

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2J11

1J3

2J3

 

THIS SHEET CONTAINS PROPRIETARY INFORMATIONUNLESS OTHERWISE SPECIFIED

TOLERANCE

 

 

 

 

 

 

 

 

 

 

 

 

 

E Q U I P .

TRANSFORMER WELDERS

 

OWNED BYTHE LINCOLN ELECTRIC ANDCO . IS

 

ON HOLE SIZES PER E2056

 

4-27-90

 

 

 

 

THE LINCOLN ELECTRICTCOY P E

.

 

 

 

ON 2 PLACE DECIMALS IS

. 02

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

-19-93L

 

 

 

 

 

CLEVELAND, OHIO U . S . A .

 

 

 

 

 

NOT TO BE REPRODUCED, DISCLOSED OR USED

 

 

 

 

 

 

OPERATING SCHEMATIC

 

WITHOUT THE EXPRESS PERMISSION OF

 

ON 3 PLACE DECIMALS IS

. 002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S U B J E

CT

 

 

ON ALL ANGLES IS . 5 OF A DEGREE3

-19-93D

 

 

 

 

 

 

S C A L E NONE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S H T .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MATERIAL TOLERANCEt (" ") TO AGREE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THE LINCOLN ELECTRIC CO .

 

WITH PUBLISHED STANDARDS .

 

 

 

 

 

 

D R

C.S.

 

D A T E 7-31-92

 

C H K J.J.

 

R E F

.

 

S U P ' S ' D ' G3-1-90

N O . G 2147

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

IDEALARC DC1000

Page 107 Page 109
Image 108
Page 107 Page 109
Contents Idealarc Safety Electric and Magnetic FieldsElectric Shock can kill Welding Sparks can cause fire or explosion Précautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Installation Technical Specifications Idealarc DC OutputElectric Shock can Kill Select Proper LocationElectrical Input Connections StackingReconnect Procedure Fuse and Wire SizesInput Power Supply Connections Ground ConnectionFigure A.3a Input Connection Diagram Figure A.3c -Input Connection Diagram Figure A.3d Input Supply Connection Diagram Output Connections Connection for AIR/CARBON ARC Cutting OperationIdealarc DC-1000 Operation Safety Instructions Electric Shock can killOperational Features and Controls Design Features AdvantagesGeneral Description Recommended Processes and EquipmentWelding Capability Controls and Settings Return to SectionWelding Procedure Recommendations Remote Control of Machine OperationNA-3 Automatic Wire Feeder ARC Striking with Idealarc DC-1000 and the NA-3 Start Board LN-8 SEMI-AUTOMATIC Wire Feeder RemoteAccessories Table of ContentsOPTIONS/ACCESSORIES Connecting the NA-3 or LT-7 toIdealarc DC-1000 Remote Output Control OptionalConnecting the NA-5 to the Idealarc DC-1000 Figure C.2 NA-5 Wire Feeder Connection to Idealarc DC-1000Connecting the LN-8 to the Idealarc DC-1000 Connecting the LN-9 Wire Feeder to the Idealarc DC-1000 Connecting the LN-7 Wire Feeder to the Idealarc DC-1000 Maintenance Safety Precautions Electric Shock Can Kill Routine and Periodic MaintenanceFigure D.1 Major Component Locations Idealarc DC-1000 Theory of Operation Input Line VOLTAGE, Contac TOR, and Main TransformerOutput Rectification CONTROL, and FeedbackProtection Devices Circuits Contactor HOLD-INSCR Operation Figure E.5 SCR OperationIdealarc DC-1000 Troubleshooting & Repair HOW to USE Troubleshooting Guide Locate Problem SymptomPC Board Troubleshooting Procedures Board can be damaged by static electricityControl Transformer Test Return Return to Master TOC Return Return to Section TOC Perform SCR Output Bridge Troubleshooting & Repair Function Problems Perform Firing Board Test Perform Control Board Test SCR Output Troubleshooting & Repair Test Description Control Transformer T2 Voltage TestTest Procedure Figure F.1 Control Transformer Lead LocationFigure F.2 Control Transformer X1 and X2 Test Points Main Transformer T1 Voltage Test Test Description Figure F.4 Main Secondary Lead Test Points From Expected VAC Firing Board Test Test Procedure for Normal Firing Board Operation Figure F.7 Terminal Strip Jumper Wire Connections Figure F.8 Output Pilot Relay 4CR Location Table F.1 LED 7, 8 and 9 Check List ThenControl Board Test Test Procedure for Normal Control Board Operation Figure F.9 Control Board LED and Pin LocationsPossible Problems Pertaining to the Control Board If LED 1 does not light, when the start switch is onFigure F.11 LED 2 Open Circuit Voltage Test Points If LED 4 lights Static SCR Test Test Procedure Figure F.12Figure F.13 SCR Heat Sink Assembly Test Points Static SCR Test Active SCR Test Active SCR Test Figure F.16 Heat Sink Assembly Test Points Battery Test Scope Settings Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Input Contactor 1CR Cleaning AND/OR Replacement Cleaning Procedure Figure F.18 Input Contactor Cover RemovalContactor Replacement RemovalInstallation SCR Output Bridge Replacement SCR Output Bridge Removal Figure F.22 Preparation For SCR Output Bridge RemovalFigure F.23 SCR Output Bridge Removal Removal of Individual SCR Heat Sink Assemblies SCR Heat Sink Installation SCR Output Bridge InstallationTOC Removal and Reassembly of Lift Bail Removal of Lift Bail Figure F.25 Lift Bail RemovalReassembly of Lift Bail Main Transformer Removal and Installation Main Transformer Disassembly and Assembly Figure F.26 Main Transformer DisassemblyMain Transformer Disassembly Coil Removal ReplacementTransformer Installation Transformer ReassemblyIdealarc DC-1000 Input Idle Amps and Watts Open Circuit VoltagesIdealarc DC-1000 Electrical Diagrams Idealarc DC-1000 Wiring Diagram Codes 9919 Operating Schematic Control PC Board G1585 Layout Firing PC Board G1486-5 and above Layout Control PC Board G1585 Schematic Firing PC Board G1486-5 and above Schematic Output Snubber M14312 Schematic
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