Lincoln Electric SVM155-A Safety Precautions, Select Proper Location, Stacking, Tilting

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INSTALLATION

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Read entire Installation Section before installing the

MULTI-SOURCE.

SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Have an electrician install and service this equipment.

•Turn the input power off at the fuse box before working on equipment.

•Do not touch electrically hot parts.

•The Multi-Source power supply should not be used if the green Safe Output light is not lit. The machine is designed to open its input contactor if output voltage peaks exceed the limits set by certain approval agencies. If the Safe Output light is on, the output voltage is within it designed operating range.

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the two holes in the base rails on the second machine with the two pins on top at the front of the bottom machine.

Note: The machines must be stacked with the Case Front of each machine flush with each other. See Figure A.1. below.

STACKING HOLE

STACKING PIN

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SELECT PROPER LOCATION

Place the power supply where clean cooling air can freely circulate in through the front louvers and out through the rear louvers. Dirt, dust or any foreign mate- rial that can be drawn into the welder should be kept at a minimum. Failure to observe these precautions can result in excessive operating temperatures and nui- sance shut-downs.

STACKING

WARNING

FALLING EQUIPMENT can cause

injury.

•Two Multi-Source machines can be stacked.

•Lift only with equipment of adequate lifting capacity.

•Be sure machine is stable when lifting.

•Do not stack more than two high.

•Do not stack the Multi-Source on top of any other machine.

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Two MULTI-SOURCE machines can be stacked.

Follow these guidelines when stacking:

1.Select a firm, level surface capable of supporting the total weight of up to two machines (1984 pounds/901kilograms).

2.Set the bottom machine in place.

3.Stack the second machine on top of it by aligning

FIGURE A.1. - Stacking the MULTI-SOURCE

TILTING

The MULTI-SOURCE must be placed on a stable, level surface so it will not topple over.

ELECTRICAL INPUT

CONNECTIONS

Before installing the machine, check that the input sup- ply voltage, phase, and frequency are the same as the machine’s voltage, phase, and frequency as specified on the machine’s rating plate on the Case Front Assembly Control Panel. Connect input power supply by removing the rear access panel and connecting to the three line terminals on the input panel. See Figure A.2 for location of the machine’s input cable entry opening and reconnect panel assembly for dual volt- age machines.

Rear Panel

W

V

U

FIGURE A.2. - Input Power Supply Connection

MULTI-SOURCE

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Contents MULTI-SOURCE TM California Proposition 65 Warnings SafetyElectric Shock can kill Welding Sparks can cause fire or explosion Sûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications Multi-Source K1752-1 InstallationSelect Proper Location Safety PrecautionsStacking TiltingInput and Grounding Connections Fuse and Wire SizesParalleling Output ConnectionsMULTI-SOURCE Table of Contents Operation Section Operation Safety InstructionsDesign Features and ADVAN- Tages General DescriptionRecommended EQUIPMENT/PROCESSES Recommended EQUIPMENT/CONNECTIONS Controls and SettingsTable of Contents Accessories Field Installed Options / Accessories Factory Installed Options / AccessoriesTable of Contents Maintenance Routine and Periodic MAINTE- Nance Safety PrecautionsFigure D.1 Major Component Location MULTI-SOURCE Table of Contents Theory of Operation Input VOLTAGE, FILTER, Contac TOR and Control Trans Former General DescriptionReturn to Section Section TOC Troubleshooting & RepairOperation Protection Devices and CIR Cuits Figure E.5 SCR Operation SCR OperationTable of Contents Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Electric Shock can kill PC Board Troubleshooting Procedures and ReplacementTroubleshooting Guide Perform the Firing Board Test Calibration ProcedurePerform the Main Transformer T1 TestCircuit external to the Multi Main Transformer Test Technical SpecificationsInput Contactor Test Functions ProblemsControl Transformer T2 Voltage Test Test DescriptionFigure F.1. Control Transformer Location & Leads Test Procedure575 VAC 43.0 VAC 460 VAC 34.50 VAC 380 VAC 28.50 VAC Secondary Thermostat Input Contactor Test 241COIL Input Contactor TestTest for Contact Continuity Removal and Replacement ProcedureMULTI-SOURCE Main Transformer T1 Voltage Test Contactor Test Main Transformer T1 Voltage TestFigure F.6. Main Secondary Lead Test Points MULTI-SOURCE Static SCR Test Static SCR Test Leads Remove Red Paint Active SCR Test Active SCR Test Active SCR Test Remove Red Paint SW1 MULTI-SOURCE Control Board Test See Figure F.15 Control Board Test#341 #230 #215 #231 #263 #201 J1 MULTI-SOURCE Firing Board Test Static and Active SCR Tests Figure F.17Then Table F.2. LED 7, 8 and 9 Check List#231 #215 #340 J8 #287 MULTI-SOURCE Meter Accuracy Check Control Board Normal Open Circuit Voltage Waveform no Load Volts Typical SCR Gate Voltage Waveform no Load MULTI-SOURCE Description Input Contactor Cleaning AND/OR ReplacementRemoval Procedure Coil 240MULTI-SOURCE Control Board Replacement Procedure Control Board Firing Board Replacement Procedure Firing Board SCR Bridge / Heat Sink Assembly Replacement Procedure Bridge Assembly Mount #251 Mounting Bolt Removal of Individual SCR Heat Sink Assemblies Figure F.27 See Figure F.26No Load Readings FAN OFF Maximum Open Circuit VoltagePerform Meter Accuracy Test MULTI-SOURCE Table of Contents Electrical Diagrams Section Electrical DiagramsMULTI-SOURCE Wiring DiagramSchematic Control PC Board Return to Section PC Board ASSEMBLY-CONTROLSchematic Firing Printed Circuit Board TP1 PC Board ASSEMBLY-FIRINGM14312 PC Board Assembly SnubberSVM Error Reporting Form

SVM155-A specifications

The Lincoln Electric SVM155-A is a state-of-the-art welding machine that excels in versatility and performance, making it ideal for both professional welders and hobbyists. This multi-process welder supports MIG, TIG, and stick welding processes, allowing users to tackle a wide range of applications with a single device. Its user-friendly design and advanced technology make it an exceptional choice for those looking to enhance their welding capabilities.

One of the main features of the SVM155-A is its robust power output, which can handle welding materials ranging from thin sheets to heavier stock. The welder offers a high duty cycle, ensuring that users can work efficiently without the need for prolonged breaks. This is especially important in industrial settings where productivity is key. Additionally, the SVM155-A is equipped with a digital display that allows for easy monitoring and precise control of the welding parameters, ensuring consistency in weld quality.

The European-designed INVERTER technology embedded in the SVM155-A significantly contributes to its lightweight and compact design. Weighing in at only 19.4 lbs, this welder is portable and ideal for fieldwork or workshops where space is limited. The inverter technology not only reduces the size and weight but also improves energy efficiency, leading to lower operational costs over time.

The SVM155-A also features advanced safety mechanisms, including over-current protection to safeguard the machine from potential damage during excessive use. It also includes a thermal overload shut-off, which prevents overheating, ensuring a longer lifespan for the welder.

Another standout characteristic of the SVM155-A is its exceptional arc stability and ease of use. The machine is designed to provide a smooth and consistent arc, reducing spatter and ensuring clean welds. Moreover, the welder is compatible with a wide range of materials, including stainless steel, aluminum, and carbon steel, further enhancing its versatility.

In conclusion, the Lincoln Electric SVM155-A is a powerful, durable, and multifunctional welding machine that incorporates advanced technologies to meet the needs of modern welding applications. Its portability, safety features, and ability to deliver high-quality welds make it an excellent investment for anyone looking to improve their welding skills or expand their capabilities in various welding projects.
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