Lincoln Electric V155-S service manual Table of Contents Accessories Section

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C-1

TABLE OF CONTENTS - ACCESSORIES SECTION

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Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

Factory Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2

Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-2

INVERTEC® V155-S

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Contents Invertec V155-S For Engine SafetyElectric Magnetic Fields Fumes and Gases Electric Shock can kill ARC Rays can burnIii For ElectricallyTransformateur ET À Précautions DE SûretéPrécautions DE Sûreté Pour LES Machines À Souder ÀElectromagnetic Compatibility EMC L10093 3-1-96H Master Table of Contents for ALL Sections Table of Contents Installation Section Operating Temperature Range Storage Temperature Range InstallationTilting Safety PrecautionsInput Connections Select Suitable LocationEngine Driven Generator Input Power Connection230V Input 120V InputTIG Welding Output ConnectionsStick Welding Smaw Replacement Quick Disconnect Plug for Stick Electrode Cable Table of Contents Operation Section Welding Capability Safety InstructionsTheory of Operation General DescriptionOFF FeaturesControls and Operational FunctionWith Stick Welding Auto Adaptive ARC ForceRear Control Panel Table of Contents Accessories Section Cable Plugs Compatible Equipment AccessoriesTable of Contents Maintenance Section Thermal Protection MaintenanceInput Filter Capacitor Discharge Procedure Routine MaintenanceFigure D.1 Major Component Locations Major Component LocationsInvertec V155-S 1TABLE of CONTENTS-THEORY of Operation Section E-1 Figure E.2 General Description Figure E.3 Input Board Input BoardFigure E.4 Main Inverter Board Main Inverter BoardFigure E.5 Control Board Control BoardFigure E.6 Igbt Operation Insulated Gate Bipolar Transistor Igbt OperationMaximum Output Pulse Width ModulationMinimum Output Sec 31 m/sec 33 m/secInvertec V155-S 1TABLE of Contents Troubleshooting & Repair F-1 HOW to USE Troubleshooting Guide Troubleshooting & RepairElectric Shock PC Board Troubleshooting ProceduresResistance Test Perform Inverter Board Voltage Test Machine has high welding Materials Needed 7TROUBLESHOOTING & REPAIRF-7Case Cover Removal Procedure Test DescriptionDisconnect power to the Invertec V155-S Procedure9TROUBLESHOOTING & REPAIRF-9 Input Filter Capacitor Discharge Procedure Figure F.4 Capacitor Discharge Locations 11TROUBLESHOOTING & REPAIRF-11Invertec V155-S Input Board Resistance Test 13TROUBLESHOOTING & REPAIRF-13DC+ Inverter Board Resistance Test 15TROUBLESHOOTING & REPAIRF-15Figure F.6 Inverter Board Test Points Inverter Board Resistance Test Invertec V155-S Input Board Voltage Test 19TROUBLESHOOTING & REPAIRF-19PWR 2white to PWR 1blue to PWR 4white to PWR 3blue to 20TROUBLESHOOTING & REPAIRF-20Figure F.9 Main Switch Plug Location 21TROUBLESHOOTING & REPAIRF-21Invertec V155-S Inverter Board Voltage Test 23TROUBLESHOOTING & REPAIRF-23Figure F.10 Plug JP1 Testpoints Input Board Removal and Replacement Procedure 25TROUBLESHOOTING & REPAIRF-25AC2 Inverter Board Removal and Replacement Procedure 27TROUBLESHOOTING & REPAIRF-27Perform the Case Cover Removal Procedure Figure F.13 Inverter Board Removal 29TROUBLESHOOTING & REPAIRF-29Invertec V155-S Control Board Removal and Replacement Procedure 31TROUBLESHOOTING & REPAIRF-31Figure F.14 Control Board Removal 32TROUBLESHOOTING & REPAIRF-32Recommended Meters for Machine Output Tests INPUT- Single Phase onlyRated Output OutputInvertec V155-S Table of Contents Diagram Section Electrical Diagrams Schematic Complete Machine Codes 11326 Electrical DiagramsAux Potenza Schematic Input PC BoardPC Board Assembly Input Board PTC Schematic Inverter PC Board Sheet #1FEED-FORWARD Schematic Inverter PC Board Sheet #2PC Board ASSEMBLY- Inverter Board Sheet # PC Board Assembly Inverter Board Sheet #2 U1A Schematic Control PC BoardSee Page 2 for more detailed component information PC Board Assembly Control Board page Sheet #1PC Board Assembly Control Board Sheet #2
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