Lincoln Electric SVM154-A service manual Mode Selection

Page 54

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F-9

TROUBLESHOOTING AND REPAIR

F-9

Observe all Safety Guidelines detailed throughout this manual.

PROBLEMS

POSSIBLE AREAS OF

 

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

FUNCTION PROBLEMS (Continued)

 

 

 

 

The “Timer” or "Control” button

1.

Make certain the DIP switches

1. Perform the Keypad Resis-

does not function correctly.

 

on the control board are not set

tance Test.

 

 

for the security mode. DIP

 

 

 

switch S2 position 3 must be in

2. The display board may be

 

 

the OFF position. See Security

faulty.

 

 

Mode Selection.

 

 

 

 

 

 

 

 

3. The control board may be

 

2.

Check the connectors and wires

faulty.

 

 

between the display board and

 

 

 

the control board for loose or

 

 

 

faulty connections. (J11 and J3)

 

 

3.

Check

the

connector

J10

 

 

 

between the keypad and the

 

 

 

display

board for loose

 

 

 

connections.

 

 

 

 

 

 

Pressing the trigger key has no

1. Make certain the DIP switches on

1. Perform the Keypad Resis-

effect while not welding.

 

the control board are not set for

tance Test.

 

 

the security mode. DIP switch S2

 

 

 

position 3 must be in the OFF

 

 

 

position. See Security Mode

2. The display board may be

 

 

Selection.

 

 

faulty.

 

2. Check the connectors and wires

3. The control board may be

 

 

between the display board and

faulty.

 

 

the control board for loose or

 

 

 

faulty connections. (J11 and J3)

 

 

3. Check

the

connector

J10

 

 

 

between the Keypad and the dis-

 

 

 

play board for loose connections.

 

 

 

 

 

One of the encoder control knobs

1.

The unit maybe in a mode that

1. Perform the Encoder Board

 

utilizes only one display. To

functions but the other one does

 

Test.

 

check if this is the problem,

not.

 

 

 

make sure that both knobs

 

 

 

2. The control board may be

 

 

change the display when both

 

 

faulty.

 

 

displays are showing a number.

 

 

 

 

2.

Check the wiring and plug con-

 

 

 

nections between the encoder

 

 

 

boards and the control board.

 

 

 

(Plug J2) See the Wiring

 

 

 

Diagram.

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-800-833-9353.

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LN-10

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Contents SVM154-A ISAFETYi Safety Fumes and GasesWelding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Installation Table of Contents Installation SectionTechnical Specifications LN-10 Head & Control General DescriptionMounting the 10 Series Wire Drive Safety PrecautionsInstallation of the LN-10 Boom Mount Wire Feeder Components Recommended Processes and EquipmentMounting Synergic 7F Wire Drive Unit K679-1 or Connecting Wire Drive Unit to Control BoxMounting the LN-10 Control Box Series Wire Drive Ratio Selection Wire Drive Speed Range SelectionControl Speed Range Setting Electrode RoutingSeries Wire Drive Roll Kit Installation KP1505 and KP1507 Wire Feed Drive Roll KitsProcedure to Install Drive Roll and Wire Guides Synergic 7F Wire Drive 4-Roll Kits KP655 and KP656Gmaw Guns GUN and Cable Assemblies with Standard ConnectionGUN and Cable Assemblies with FAST-MATE Connection Innershield GunsCylinder may explode if damaged 8INSTALLATIONA-8Series Wire Drive Water Connections for Water Cooled Guns Buildup of Shielding GAS may harm health or killElectrical Installation Input Cable LN-10 Control to Power SourceMaterials Required for bench to boom conversion Optional Features InstallationBoom and Bench Conversions Materials Required for boom to bench conversionTable of Contents Operation Section OperationWire Drive Head Selection LN-10 Control DIP Switch SetupSetting the DIP Switches Setup DIP Switch AccessWelding Power Source Selection Metric/English Wire Feed Speed Display Selection Step Trigger Mode Operation SelectionSecurity Mode Selection S2 switch 1 on = m/minS2 switch 6 on Minimum Limits Setting mode on Maximum Limits Setting Mode SelectionS2 switch 4 on = Robotics mode on S2 switch 4 OFF = Robotics mode OFF As shippedKeypad and Display Operation Power-Down SaveProcedure Lights Indicate which Keypad and Display DescriptionTrigger Mode Selection Display Control Keys Control Control Select key enables operator to Digital Memory VoltmeterMaximum and Minimum Limits Setting Modes Dual Procedure Remote Wire Reel Loading READI-REELS Spools or CoilsFigure B.2 Procedure for Setting Angle of Feedplate GAS Guard Regulator SettingMaking a Weld Grounding Lead Protector Wire Reel ChangingWire Feed Overload Protection DH-10Explanation of Prompting Error Messages Display Prompt or ErrorAccessories Table of Contents Accessories SectionTable C.1 LN-10 Wire Feeder Accessories GeneralAluminum Electrode Wire Size Solid Steel ElectrodeCored Electrode Aluminum Electrode For use with Binzel Guns OnlyK1449-1 Dual Procedure K683-1 Dual Procedure SwitchK683-3 Dual Procedure Switch Input Cable AssembliesGUN and Cable Assemblies K1558-1 Remote Switch Interface ModuleGUN Adapters for 10 Series K1561-1 Robotics Interface ModuleK1557-1 Swivel Mount K1556-1 Light Duty Caster KITK1555-1 Insulated Lift Hook Maintenance Table of Contents Maintenance SectionRoutine Maintenance MaintenanceAvoiding Wire Feeding Problems Safety Precautions Periodic MaintenanceFigure D.1 Major Component Locations Table of Contents Theory of Operation Section Theory of OperationControl Board Input RECEPTACLE, Control Board and Operator Controls Wire Feed Head Receptacle Figure E.3 LN-10 Wire Feed Head and ReceptacleWire Feed Overload Loss of Voltage Sense Protection Shutdown Theory of Operation Protection and ShutdownLN-10 Troubleshooting and Repair Table of Contents Troubleshooting and Repair SectionHOW to USE Troubleshooting Guide Return to Return to Master TOCPC Board Troubleshooting Procedures LN-10 Troubleshooting Guide Function ProblemsFunction Problems Power Source Selection Function Problems Mode Selection Perform the Encoder Board Test Troubleshooting and Repair Mum and minimum limit set Perform the Gas Solenoid Test Feeding Problems Welding Problems LN-10 Test Description Test ProceduresWire Drive Motor Test Materials NeededWire Drive Motor Test Test ProcedureTach Adjustment and Feedback Test Materials Needed20TROUBLESHOOTING and REPAIRF-20 Tach Adjustment and Feedback TestTach Adjustment Procedure LN-10 Keypad Resistance Test 24TROUBLESHOOTING and REPAIRF-24 Keypad Resistance TestControl Ohms 50 Ohms Typical LN-10 Encoder PC Board Test Encoder PC Board Test Figure F.4 Encoder PC Board TestGAS Solenoid Test 30TROUBLESHOOTING and REPAIRF-30 GAS Solenoid TestComponent Replacement Procedures Display PC Board Removal and ReplacementRemoval Procedure 32TROUBLESHOOTING and REPAIRF-32Display PC Board Removal and Replacement Replacement ProcedureGAS Solenoid Removal and Replacement 34TROUBLESHOOTING and REPAIRF-34 GAS Solenoid Removal and ReplacementEncoder PC Board Removal and Replacement Encoder PC Board Removal and Replacement Figure F.8 Encoder PC Board Removal and ReplacementWire Drive Motor and Gear BOX Removal and Replacement Wire Drive Motor and Gear BOX Removal and Replacement Figure F.9 Wire Feed Assembly RemovalTo Remove the Wire Drive Assembly from the Gear BOX To Remove the Drive Motor from the Gear BOXReplacement Procedures Current Sensing Reed Switch Removal and Replacement Current Sensing Reed Switch Plug Check Wire Feed Speed Range Retest After RepairElectrical Diagrams Section Electrical Diagrams Wiring Diagram LN-10 ControlWiring Diagram LN-10 Wire Drive Electrode Cable From Current SensorSchematic Control PC Board #1 Schematic Control PC Board #2 Circuitry TachPC Board ASSEMBLY-CONTROL 3168 GSchematic Display PC Board 5VABoard Schematic Encoder PC Board 22066PC Board ASSEMBLY-ENCODER EncoderSVM Error Reporting Form

SVM154-A specifications

The Lincoln Electric SVM154-A is a powerful and versatile inverter-based welding machine designed for a wide range of applications. As a part of Lincoln Electric's esteemed portfolio, this model is particularly favored for its robust performance and cutting-edge technologies, making it ideal for both professional fabricators and hobbyists alike.

One of the standout features of the SVM154-A is its compact and lightweight design, which enhances portability without compromising power. Weighing significantly less than traditional welding machines, it allows welders to easily transport the equipment to various job sites. This feature is particularly beneficial in industries where mobility is essential.

Equipped with advanced inverter technology, the SVM154-A delivers a stable and smooth arc, providing consistent welding performance even in challenging conditions. The inverter design also contributes to energy efficiency, allowing users to save on operational costs while enjoying superior performance. The machine supports both MIG and TIG welding processes, which adds to its versatility. This adaptability makes it suitable for a range of materials including mild steel, stainless steel, and aluminum.

Another notable characteristic is its user-friendly interface. Designed with the welder in mind, the SVM154-A includes intuitive controls that simplify settings adjustments and operational processes. This ergonomic layout allows for ease of use, even for beginners, while still offering the adjustments that experienced welders appreciate for customizing their welds.

The SVM154-A also includes several safety features, such as thermal overload protection and a dynamic power control, ensuring safe operation while maintaining high productivity. Users benefit from features that protect both the machine and the operator, making it a reliable choice for long hours of work.

Moreover, Lincoln Electric's commitment to durability is evident in the SVM154-A's construction. Built with high-quality materials, this welding machine is designed to withstand the rigors of daily use, ensuring longevity and reliability over time.

In summary, the Lincoln Electric SVM154-A stands out for its portability, versatility, and user-centric design. With advanced inverter technology that promotes energy efficiency and a stability for various welding processes, it serves as a valuable tool for both professionals and hobbyists seeking to achieve high-quality welds across different applications. Its combination of advanced features, safety mechanisms, and rugged durability positions the SVM154-A as a top choice in the welding equipment market.
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