Lincoln Electric SVM176-A service manual K350 / K350-1ADAPTER Kits

Page 27

TOC

TOC

E-5

THEORY OF OPERATION

E-5

 

FIGURE E.5 K350-1 DIAGRAM

 

 

 

608

 

 

 

 

 

 

 

 

 

 

 

 

 

521

 

 

21

609

 

 

 

 

610

 

604B

 

 

 

 

 

 

3 6 4 5 2 1

RELAY P.C.* BOARD 607

602606

605

607

75

B

9

6

3

75A

75B

 

 

 

608

 

1CR

 

 

 

 

 

A

 

 

 

76

 

8

 

7

 

5

 

4

 

2

 

1

4

2A

76A

76B

 

 

 

 

 

 

 

521 21

SENSE LEAD

 

 

 

 

609

 

 

 

 

2CR

 

 

 

B

 

4

A

 

610

 

 

 

 

9

 

 

8

7

 

 

6

 

5

4

21

604A

3

 

2

1

 

75

 

 

 

 

 

2B

521A

76

 

 

 

 

77

 

 

 

 

 

 

 

 

521B

 

4

606

R

B

 

32

 

 

31

605

R

B

 

 

 

 

2A

24V. CONTROL TRANSFORMER

 

 

2C

2B

 

AMPHENOL

Return to

Return to

 

3

2

1

INDICATES CONNECTOR

6

5

 

4

CAVITY NUMBER

 

 

A.N.S.I. ELECTRICAL SYMBOLS PER E1537

602

604 75 76 77 521

602

"A" WIRE FEEDER TERMINAL STRIP

ICR & 2CR - 3 PDT, 24V.D.C.

604 75 76 77 521

"B" WIRE FEEDER TERMINAL STRIP

COLOR LEGEND

R=RED

B=BLACK

(J) A

(A)A

(D)A

(C)A

(H)A

(E)A

(F)A

(G)A

(I)

A

(K)A

(B)A

31

32

4

2

77

76

75

GND

8 CONDUCTOR CONTROL CABLE

12-01

M17514

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

K350 Control Cable - for use with

FIGURE E.5.a

 

 

 

 

 

 

 

 

 

8 CONDUCTOR CONTROL CABLE

B(76)

 

 

power sources that do not have a

A(75)

 

 

 

 

 

 

 

14 pin Amphenol connector

C(75)

 

 

 

 

 

 

 

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K350 / K350-1ADAPTER KITS (cont.)

 

2B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The wiring diagram in Figure E.5 shows the internal

The 24 volt control transformer provides power for

connections that allow the voltage control, the welder

the Relay Board and the relays. It is also the low

output (contactor) control and the Work Sense Lead

voltage trigger circuit supply for the LN-23P.

(#21) to be switched from one feeder to the other.

The K350 is basically the same as the K350-1

The Relay Board and the two relays (1CR & 2CR)

except the Control Cable to the power source has

connect the feeder that has been triggered to the

leads with terminals. (Figure E.5.a). It is designed to

power source through the control cables. See the

be used with power sources that have a terminal

K350 Machine Schematic in Section G for a better

strip for the wire feeder connection rather than a 14

understanding of the relay logic.

pin connector.

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: Unshaded areas of block logic diagrams are the subject of discussion.

LN-23P

Image 27
Contents LN-23P Safety Depends on YouElectric Magnetic Fields SafetyPowered equipment For EngineElectric Shock can kill ARC Rays can burn Fumes and GasesCan be dangerous Iii Cylinder may explodeCause fire or explosion If damaged For ElectricallyTransformateur ET À Précautions DE SûretéPrécautions DE Sûreté Pour LES Machines À Souder ÀMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications LN-23PEnvironmental Rating Sensing Work Lead Safety PrecautionsInput Cable Work Cable and Remote VoltageWire Drive Rolls and Guide Tubes Optional Features InstallationInnershield GUN and Cable Power Source AccessoriesLN-23P Table of Contents Operation SectionOperation Section B Loading the Wire Reel OperationProduct Description Making the Weld Adjusting Wire Feed SpeedDrive Roll Pressure VoltageLN-23P Accessories Section C Accessories SectionK350 Adapter KIT Enclosed Wire Reel SupportOptional Equipment GUN and Cable AssembliesMaintenance Section D Maintenance SectionRemoving Idle Roll Assembly MaintenanceGUN and Cable Maintenance Wire Drive Assembly MaintenanceNameplates Circuit ProtectionLN-23P Section E E-2E-2E-3E-3E-3E-4 Theory of Operation SectionInput Power Circuit Theory of OperationGeneral Description Figure E.3 Control Circuits K350 / K350-1ADAPTER Kits Optional CircuitsK350 / K350-1ADAPTER Kits LN-23P Troubleshooting and Repair Troubleshooting and Repair Section FSection F-1 Important Troubleshooting Tips How To Use Troubleshooting GuideTroubleshooting & Repair PC Board Troubleshooting ProceduresElectric Shock Gun Perform Potentiometer Test Call LN-23P K350 Adapter ProblemsWire Feeder Test Test DescriptionMaterials Needed Test Procedure Wire Feeder TestGUN Test GUN Test 10TROUBLESHOOTING and REPAIRF-10Feed Head Test Feed Head Test 12TROUBLESHOOTING and REPAIRF-12Potentiometer Test 14TROUBLESHOOTING and REPAIRF-14 Wire Speed Control PotentiometerPotentiometer Test K350-1 Adapter Test K350-1 Adapter Test 16TROUBLESHOOTING and REPAIRF-16Measurement Points Expected Reading Calibration Check 18TROUBLESHOOTING and REPAIRF-18Electrical Diagrams Section Electrical Diagrams Section GSection G-1 Wiring Diagram Entire Machine M14197 Electrical DiagramsSchematic Entire Machine L6518 Wiring Diagram K350 Adapter KIT M14247 Wiring Diagram K350-1 Adapter KIT M17514 Machine Schematic for K350/K350-1 Adapter PC Board Assembly for Codes below 10892 G1528-4 PC Board Assembly for Codes 10892 and Higher G4184-3 Schematic for LN-23P Codes 10892 and Higher L11838-3

SVM176-A specifications

The Lincoln Electric SVM176-A is a robust and versatile semiautomatic wire feeder designed to cater to a wide range of welding applications. Known for its reliability and ease of use, the SVM176-A is particularly favored in both industrial and construction settings, where efficiency and performance are paramount.

One of the standout features of the SVM176-A is its compact design. This relatively lightweight unit is easy to transport and can fit into tight spaces, making it an ideal choice for mobile applications or projects that require more maneuverability. The unit's construction is durable and built to withstand the rigors of demanding work environments, ensuring longevity and consistent performance.

The SVM176-A supports various welding processes, including MIG (Metal Inert Gas) and flux-cored arc welding, providing versatility for different materials and thicknesses. This adaptability is enhanced by its ability to accommodate a variety of wire sizes, allowing users to select the ideal wire type for their specific project requirements. The equipment also features adjustable wire feed speed, helping to ensure optimal weld quality by allowing operators to tailor their settings based on the needs of the job.

Innovative technologies in the SVM176-A contribute to its performance. The unit is equipped with a digitally controlled microprocessor that streamlines operations, providing enhanced control over welding parameters. This advanced technology enables users to achieve precise welds consistently, minimizing the risk of defects and improving overall efficiency.

Another remarkable characteristic of the SVM176-A is its user-friendly interface. The unit features easy-to-read displays and intuitive controls, enabling operators to make quick adjustments without having to consult an extensive manual. This is particularly beneficial in fast-paced work environments where time is of the essence.

Furthermore, the Lincoln Electric SVM176-A boasts a range of safety features, including thermal overload protection and a sturdy casing, which safeguard both the equipment and the operator. With these characteristics combined, the SVM176-A stands out as a preferred choice for professional welders seeking reliability, versatility, and operational excellence in their equipment. This exceptional wire feeder continues to uphold Lincoln Electric's commitment to quality and performance in welding technology.