Invertec V155-S | Lincoln Electric specification

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E-8

NOTESE-8

INVERTEC® V155-S

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Lincoln Electric service manual Invertec V155-S

Contents

Invertec V155-S Electric Magnetic Fields SafetyFor Engine Electric Shock can kill ARC Rays can burn Fumes and Gases For Electrically Iii Précautions DE Sûreté Précautions DE Sûreté PourLES Machines À Souder À Transformateur ET À Electromagnetic Compatibility EMC L10093 3-1-96H Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Operating Temperature Range Storage Temperature Range Safety Precautions Input ConnectionsSelect Suitable Location Tilting Input Power Connection 230V Input120V Input Engine Driven Generator Stick Welding Smaw Output ConnectionsTIG Welding Replacement Quick Disconnect Plug for Stick Electrode Cable Table of Contents Operation Section Safety Instructions Theory of OperationGeneral Description Welding Capability Features Controls and OperationalFunction OFF Rear Control Panel Auto Adaptive ARC ForceWith Stick Welding Table of Contents Accessories Section Accessories Cable Plugs Compatible Equipment Table of Contents Maintenance Section Maintenance Input Filter Capacitor Discharge ProcedureRoutine Maintenance Thermal Protection Major Component Locations Figure D.1 Major Component Locations Invertec V155-S 1TABLE of CONTENTS-THEORY of Operation Section E-1 Figure E.2 General Description Input Board Figure E.3 Input Board Main Inverter Board Figure E.4 Main Inverter Board Control Board Figure E.5 Control Board Insulated Gate Bipolar Transistor Igbt Operation Figure E.6 Igbt Operation Pulse Width Modulation Minimum OutputSec 31 m/sec 33 m/sec Maximum Output Invertec V155-S 1TABLE of Contents Troubleshooting & Repair F-1 Troubleshooting & Repair HOW to USE Troubleshooting Guide PC Board Troubleshooting Procedures Electric Shock Resistance Test Perform Inverter Board Voltage Test Machine has high welding 7TROUBLESHOOTING & REPAIRF-7 Case Cover Removal ProcedureTest Description Materials Needed Procedure Disconnect power to the Invertec V155-S 9TROUBLESHOOTING & REPAIRF-9 Input Filter Capacitor Discharge Procedure 11TROUBLESHOOTING & REPAIRF-11 Figure F.4 Capacitor Discharge Locations Invertec V155-S 13TROUBLESHOOTING & REPAIRF-13 Input Board Resistance Test DC+ 15TROUBLESHOOTING & REPAIRF-15 Inverter Board Resistance Test Figure F.6 Inverter Board Test Points Inverter Board Resistance Test Invertec V155-S 19TROUBLESHOOTING & REPAIRF-19 Input Board Voltage Test 20TROUBLESHOOTING & REPAIRF-20 PWR 2white to PWR 1blue to PWR 4white to PWR 3blue to 21TROUBLESHOOTING & REPAIRF-21 Figure F.9 Main Switch Plug Location Invertec V155-S 23TROUBLESHOOTING & REPAIRF-23 Inverter Board Voltage Test Figure F.10 Plug JP1 Testpoints 25TROUBLESHOOTING & REPAIRF-25 Input Board Removal and Replacement Procedure AC2 27TROUBLESHOOTING & REPAIRF-27 Inverter Board Removal and Replacement Procedure Perform the Case Cover Removal Procedure 29TROUBLESHOOTING & REPAIRF-29 Figure F.13 Inverter Board Removal Invertec V155-S 31TROUBLESHOOTING & REPAIRF-31 Control Board Removal and Replacement Procedure 32TROUBLESHOOTING & REPAIRF-32 Figure F.14 Control Board Removal INPUT- Single Phase only Rated OutputOutput Recommended Meters for Machine Output Tests Invertec V155-S Table of Contents Diagram Section Electrical Diagrams Electrical Diagrams Schematic Complete Machine Codes 11326 Schematic Input PC Board Aux Potenza PC Board Assembly Input Board Schematic Inverter PC Board Sheet #1 PTC Schematic Inverter PC Board Sheet #2 FEED-FORWARD PC Board ASSEMBLY- Inverter Board Sheet # PC Board Assembly Inverter Board Sheet #2 Schematic Control PC Board U1A PC Board Assembly Control Board page Sheet #1 See Page 2 for more detailed component information PC Board Assembly Control Board Sheet #2