Lincoln Electric SVM128-A service manual Wire Feed Module Wiring Diagram

Page 108

Section TOC

Master TOC

G-3

ELECTRICAL DIAGRAMS

Wiring Diagram (Wire Feed Module)

 

 

WIRE FEED MODULE - WIRING DIAGRAM

G-3

 

ELECTRICAL SYMBOLS PER E1537

 

MOLEX CONNECTORS

 

J1

J2

J3

J4

CONNECTOR CAVITY NUMBERING

SEQUENCE VIEWED FROM

COMPONENT SIDE OF BOARD.

N.A. LEADS 31, 32 AND 602 DO NOT GO INSIDE WIRE FEED MODULE BOX.

 

 

N.B. COMPONENTS

VIEWED FROM REAR

 

 

1

2

3

4

 

 

5

6

7

8

 

 

9

10

11

12

 

 

 

P5

 

 

 

CONNECTOR CAVITY NUMBERING

 

 

SEQUENCE VIEWED FROM

 

 

LEAD SIDE OF CONNECTOR

 

 

 

 

 

CC/CV SWITCH S1

510

602

 

 

 

SHOWN IN CV MODE

 

 

 

 

 

 

CV CONTROL

 

 

77A

 

R501

75

 

 

 

 

10K

 

 

76A

 

 

 

 

 

 

 

 

609

501

 

REMOTE CONNECTOR

 

 

115 VAC

J

31

 

 

A

32

 

 

 

 

 

 

GROUND B

GND

 

 

CONTACTOR

C

2A

 

 

D

4A

 

 

 

 

 

 

 

 

E

77B

 

 

REMOTE

F

76B

 

 

 

 

G

75A

 

 

 

 

AMPHENOL 1

 

 

 

 

 

77

4A

2

 

 

 

2A

4

 

77B

LOCAL/REMOTE SWITCH S2

SHOWN IN LOCAL MODE

77A 76A

 

 

FLASHING

 

1

Y

 

 

 

 

 

LEADS

 

2

W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

503

 

 

 

 

SHUNT

TO

 

4

602

 

 

 

 

FIELD

 

 

 

 

 

 

 

RHEOSTAT

 

 

 

 

 

 

 

 

5

509

 

 

 

 

 

 

 

 

 

 

 

CONNECTS TO

 

 

 

+

6

610

 

 

 

 

 

115V

 

 

 

 

 

 

ENGINE WELDER

 

 

 

7

 

 

 

 

RECEPTACLE J5

 

 

DC

-

 

600

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

10

GND

 

 

 

 

 

 

115V

 

11

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC

 

12

32

 

 

 

 

 

 

 

 

 

P5

N.A.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

1

GND

 

 

 

 

 

 

31

 

2

31

 

 

 

 

 

 

32

 

3

32

 

 

 

610A

 

 

609

 

4

609

 

 

 

 

 

610A

 

5

610A

 

 

 

503A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

510

 

6

510

 

 

 

 

 

 

501

 

7

501

 

 

 

 

 

 

503A

 

8

503A

 

 

 

 

 

 

602

 

9

602

 

 

 

 

 

 

J6

 

 

P6

 

 

 

 

 

 

75

 

1

75

 

 

 

 

 

 

76

 

2

76

 

 

 

 

 

 

77

 

3

77

 

 

 

 

 

 

2

 

4

2

 

 

 

 

 

 

4

 

5

4

 

 

 

 

 

 

75A

 

6

75A

 

 

 

 

 

 

P7

 

 

J7

 

 

 

76B

 

 

 

 

 

 

 

 

 

76

 

 

 

 

 

 

218

219

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-

+

621

 

 

 

 

 

 

 

300 AMP

 

 

 

 

 

 

 

 

SHUNT

 

POS

NEG

 

608

609

 

 

 

633

 

 

 

 

CR4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

634

CC +

CC -

 

 

TO NEG

CV -

 

CONTACTOR

 

 

 

 

BRUSH HOLDER

 

 

666

250

25W

622

R502

CONTROL BOARD

218

1

 

219

2

J1

P1

 

6341

6672

23

44

6215

6336

75A7

768

779

75

10

P2

J2

501

1

509

2

503A

3

631

4

630

5

503

6

P4

J4

W

1

610A

2

Y

3

600

4

608

5

6106

7

5108

P3J3

667

+++

C501 C502

C503

CR3

 

630

631

30000 MFD

CONTACTOR

EACH

75 VOLT

 

R

CLEVELAND, OHIO U.S.A.

3-18-94

L9259

SA-250

Image 108
Contents SHIELD-ARCTMSA-250 Safety SA-250Electric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications SA-250Safety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Cooling System MufflerExhaust Spark Arrester TrailerElectrical Output Connections Welding Cable ConnectionsAuxiliary Power RECEPTACLES, PLUGS, and HAND-HELD Equipment Machine GroundingCircuit Breakers SA-250 Table of Contents Operation Section Safety Instructions OperationOperating Instructions General DescriptionOperational Features and Controls Design FeaturesRecommended Applications WelderWelding Capability LimitationsControls and Settings WELDER/GENERATOR ControlsControl of Welding Current Current Range SelectorDiesel Engine Controls Figure B.3 Diesel Engine ControlsEngine Operation Before Starting the EngineStarting the Engine Check and fill the engine fuel tankStopping the Engine Cold Weather StartingBREAK-IN Period Welding Operation After you finish weldingTable B.1 Range Settings for Wire SIZE/SPEED Auxiliary Power 12B-12Table of Contents Accessories OPTIONS/ACCESSORIES TIG Welding Accessories Semiautomatic Welding AccessoriesConnection of Lincoln Electric Wire Feeders Connection of the LN-7 toPIN Amphenol Connection of the LN-25 to Unused Lead IndividuallyFigure C.4 SA-250/LN-25 Across the ARC Connection Diagram Control K487-25 Table of Contents Maintenance Routine and Periodic Maintenance Engine MaintenanceFigure D.1 OIL Drain and Refill Eliminate Air from the Fuel System HOW to Eliminate AIR from the Fuel System Self-vent method Figure D.4 Eliminating AIR from the Fuel SystemFigure D.5 Engine Coolant Drain Plug Figure D.6 Tightening the FAN Belt Daily or Before Starting EngineFirst 25-50 Hours EveryBattery Maintenance Cleaning the BatteryWELDER/GENERATOR Maintenance Idler Maintenance Figure D.5 Major Component Locations SA-250 Table of Contents Theory of Operation Section Theory of Operation ALTERNATOR, and ProtectionCircuits Excitation Flashing Auxiliary and Field Feedback CoilsInterpole and Series Coils Fine Current Adjustment Current Range SelectorEngine Idler Circuit DC Generator Machines Mechanical CouplingSA-250 Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures PC Board can be damaged by static electricityTroubleshooting Guide Observe Safety GuidelinesDetailed in the beginning of this manual Shunt Field Winding Test Field Shunt Winding Test Output Problems Function Problems Function Problems Troubleshooting & Repair Problems Possible Areas Symptoms Misadjustments Course of ActionWelding Problems Alternator Rotor Test Test DescriptionMaterials Needed Test Procedure Slip Rings BrushesFigure F.2 Measuring Rotor Resistance Figure F.3 Measuring Rotor Resistance to Ground Field Shunt Winding Test Field Shunt Winding Test PIN TAB Idler Solenoid Test Idler Solenoid Test Engine Throttle Adjustment Test Engine Throttle Adjustment Test Strobe Tach MethodFrequency Counter Method Oscilloscope MethodAdjusting Screw Locking NUT Flashing the Fields DescriptionProcedure Do not remove brush holderScope Settings Normal Open Circuit Voltage Waveform 115VAC SupplyHigh Idle no Load Fine Current Control Rheostat AT Maximum Normal Open Circuit DC Weld Voltage Waveform Machine Loaded Selector Switch AT Maximum Position Typical DC Weld Output Voltage WaveformAlternator Rotor Removal Replacement Replacement Alternator Rotor RemovalLoosen Screws Alternator Cover Slip Rings Brushes Figure F.13 Rotor Removal Replacement Alternator Stator Removal and Replacement Procedure Alternator Stator RemovalField Bridge Rectifier VAC Receptacle Circuit Breaker Genernator Brush HOLDER/COIL Cables Figure F.18 Drill Spot Locations Generator Frame Removal and Replacement Generator Frame Removal See Figure F.19 for steps 4Figure F.20 Wire and Selector Switch Connections Figure F.21 Case Front Removal Rope Sling ENGINE/GENERATOR Mounting Holes Troubleshooting & Repair Generator Armature Removal and Replacement Generator Armature Removal Figure F.23 Blower Paddle RemovalAC Auxiliary Power Receptacle Output Retest After RepairEngine Output Welder DC OutputSA-250 Electrical Diagrams Section Section G SA-250 Electrical Diagrams Wiring DiagramWire Feed Module Wiring Diagram Idler PC Board M13708 Schematic Idler PC Board M13708 Components SVM Error Reporting Form

SVM128-A specifications

The Lincoln Electric SVM128-A is a cutting-edge welding machine designed to meet the demands of both professional welders and DIY enthusiasts. This versatile welding power source brings together advanced technology and robust design, making it a reliable choice for various welding applications.

One of the standout features of the SVM128-A is its capability to perform multiple welding processes. It supports MIG, TIG, and stick welding, allowing users to tackle a wide range of projects with ease. This multi-functionality makes it ideal for professionals working in different industries, as well as for hobbyists who enjoy diverse welding tasks.

The SVM128-A is equipped with inverter technology, which enhances its performance by providing a more stable arc and improved energy efficiency. This technological advancement contributes to lower operational costs and allows for a more consistent weld quality across different materials and thicknesses. Additionally, the inverter technology enables the machine to be lightweight and portable, making it convenient for jobs that require mobility.

Another prominent characteristic of the SVM128-A is its user-friendly interface. The machine features intuitive controls and a digital display that allows operators to easily set the desired welding parameters. This simplified setup helps reduce the learning curve for new users while also offering precise control for experienced professionals.

The Lincoln Electric SVM128-A is designed with durability in mind. Its robust construction ensures that it can withstand the rigors of frequent use in demanding environments. The machine is also equipped with various safety features, including thermal overload protection and a duty cycle rating that prevents overheating, ultimately extending its lifespan.

For optimal performance, the SVM128-A provides adjustable output options, allowing users to customize the welding parameters based on their specific needs. This flexibility makes it suitable for welding various metals, including steel, aluminum, and stainless steel.

In summary, the Lincoln Electric SVM128-A combines versatility, advanced technology, and a user-friendly design. With its capability to perform multiple welding processes, lightweight construction, and durable features, it stands out as an excellent option for anyone looking to achieve high-quality welds. Whether for professional or personal use, the SVM128-A is poised to deliver reliable performance and exceptional results.