Lincoln Electric SVM154-A service manual Digital Memory Voltmeter

Page 24
RUN-IN VOLTS / WFS

B-8

OPERATION

B-8

 

 

 

to Section TOC

CONTROL Control Select key - enables operator to

choose Run-In procedure as indicated by the

light turning on. When light is on, the settings of Run-In Wire Feed Speed and Voltage are displayed. After Weld procedure is set, Run-in procedure should

be set to optimize arc starting.

GAS PURGE

CONTROL

Acceleration Selection

To provide optimum starting of various processes and procedures, the wire feed acceleration of the LN-10 can be set to five levels; 1 thru 5, for each feeder and procedure. 1 is the slowest acceleration and 5 is the fastest. (Factory set to 4.)

Speed encoder knob can adjust run-in speed between min. rated speed and up to the procedure Weld speed setting. Run-in speed setting can not exceed Weld speed

setting. Run-in speed setting of 100 IPM or less is recommend- ed for optimum starting. Factory setting is near min. rated speed.

If set below minimum rated speed “---” will show on the WFS display, indicating Run-in speed is set to match weld speed set- ting.

The Run-in (strike) voltage can be set above or below the Weld voltage setting up to a max of 60 V. If set below a min of 10 V, the Run-In (strike) voltage display shows “---”, indicating the Run-In Voltage is set to match the weld voltage setting. Also, the difference between Run-in voltage and Weld voltage set- tings is maintained automatically if the Weld voltage setting is changed, so the run-in voltage encoder knob does not need to be changed to follow the Weld voltage setting.

When trigger is closed (and preflow time is over) the wire feeds at Run-In speed and volts until the welding arc strikes, which causes the feed speed and volts to change to Weld settings.

If the arc does not strike within about 2 seconds, the Run-In speed automatically changes to Weld speed to permit “Hot” feeding at higher speed setting for loading wire.

Pressing control key again, or closing the gun trigger, shuts off light indicating knob settings and displays are returned to Weld Voltage and Wire Feed Speed.

To change acceleration hold the Gas Purge Key closed, then press the Control key. The top (Voltage) display shows “Acc” indicating acceleration setting, 1 thru 5, is displayed on the bot- tom (Speed) display. Use the speed encoder knob to change setting from 1 thru 5.

To exit this function, and enter the acceleration setting into the procedure memory, press both keys again or close the trigger.

Security Mode

Security mode is used to capture timer, acceleration, and control selections and settings, then to disable these selections until security mode is deactivated. Encoder knob setting changes of cold feed, weld speed and weld voltage are not disabled.

Security mode is activated, or deactivated, by shutting off the input power to the LN-10 with all Timer and Control settings as desired for both procedures for both Feeders. Then setting S2 DIP switch 3 inside the LN-10 Control Box ON or OFF and restor- ing input power (See “Setting DIP Switches” in this section).

When activated, the Timer and Control selections no longer light, but function with the captured settings. All other keys and encoder knob controls function normally.

Return

Return to Section TOC

Return

Return to Master TOC

Digital “Memory” Voltmeter

When the welding gun trigger is activated, the top LN-10 display reads actual welding voltage from 0.0 to 60.0 VDC with auto- matic polarity indication for positive (+) or negative (-) electrode.

If actual voltage drops below 8.0 volts for over 0.8 sec when the trigger is closed, Loss of Voltage Sense Shutdown will occur. See “Loss of Voltage Sense Shutdown” in this section.

The last welding voltage monitored at the end of the weld is dis- played for 5 seconds after the weld has stopped, as indicated by a 5 second “blinking” display. This allows checking actual weld voltage after weld has stopped.

Any keypad or trigger operation will interrupt the 5 second memory display.

LN-10

Page 23 Page 25
Image 24
Page 23 Page 25
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 DescriptionSafety Precautions Installation of the LN-10 Boom Mount Wire Feeder ComponentsMounting the 10 Series Wire Drive Recommended Processes and EquipmentMounting Synergic 7F Wire Drive Unit K679-1 or Connecting Wire Drive Unit to Control BoxMounting the LN-10 Control Box Wire Drive Speed Range Selection Control Speed Range SettingSeries Wire Drive Ratio Selection Electrode RoutingWire Feed Drive Roll Kits Procedure to Install Drive Roll and Wire GuidesSeries Wire Drive Roll Kit Installation KP1505 and KP1507 Synergic 7F Wire Drive 4-Roll Kits KP655 and KP656GUN and Cable Assemblies with Standard Connection GUN and Cable Assemblies with FAST-MATE ConnectionGmaw Guns Innershield Guns8INSTALLATIONA-8 Series Wire Drive Water Connections for Water Cooled GunsCylinder may explode if damaged Buildup of Shielding GAS may harm health or killElectrical Installation Input Cable LN-10 Control to Power SourceOptional Features Installation Boom and Bench ConversionsMaterials Required for bench to boom conversion Materials Required for boom to bench conversionTable of Contents Operation Section OperationLN-10 Control DIP Switch Setup Setting the DIP SwitchesWire Drive Head Selection Setup DIP Switch AccessWelding Power Source Selection Step Trigger Mode Operation Selection Security Mode SelectionMetric/English Wire Feed Speed Display Selection S2 switch 1 on = m/minMaximum Limits Setting Mode Selection S2 switch 4 on = Robotics mode onS2 switch 6 on Minimum Limits Setting mode on S2 switch 4 OFF = Robotics mode OFF As shippedPower-Down Save Procedure Lights Indicate whichKeypad and Display Operation 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 Wire Reel Changing Wire Feed Overload ProtectionGrounding Lead Protector DH-10Explanation of Prompting Error Messages Display Prompt or ErrorAccessories Table of Contents Accessories SectionTable C.1 LN-10 Wire Feeder Accessories GeneralWire Size Solid Steel Electrode Cored ElectrodeAluminum Electrode Aluminum Electrode For use with Binzel Guns OnlyK683-1 Dual Procedure Switch K683-3 Dual Procedure SwitchK1449-1 Dual Procedure Input Cable AssembliesK1558-1 Remote Switch Interface Module GUN Adapters for 10 SeriesGUN and Cable Assemblies K1561-1 Robotics Interface ModuleK1557-1 Swivel Mount K1556-1 Light Duty Caster KITK1555-1 Insulated Lift Hook Maintenance Table of Contents Maintenance SectionMaintenance Avoiding Wire Feeding Problems Safety PrecautionsRoutine Maintenance 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 Procedures Wire Drive Motor TestTest Description 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 Replacement32TROUBLESHOOTING and REPAIRF-32 Display PC Board Removal and ReplacementRemoval Procedure 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.
Top Page Image Contents