Lincoln Electric Official Manual for Lincoln Invertec V155 Safety and Operation

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SVM183-A

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July, 2008

 

INVERTEC ® V155-S

For use with machines having Code Numbers: 11326; 11327

Safety Depends on You

Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thought- ful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MAN- UAL AND THE SAFETY PRE-

CAUTIONS CONTAINED THROUGHOUT. And, most importantly, think before you act and be careful.

SERVICE MANUAL

Copyright © Lincoln Global Inc.

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 888.935.3877 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

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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 ElectricallyPrécautions DE Sûreté Pour Précautions DE SûretéLES Machines À Souder À Transformateur ET 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 InstallationInput Connections Safety PrecautionsSelect Suitable Location Tilting230V Input Input Power Connection120V Input Engine Driven GeneratorTIG Welding Output ConnectionsStick Welding Smaw Replacement Quick Disconnect Plug for Stick Electrode Cable Table of Contents Operation Section Theory of Operation Safety InstructionsGeneral Description Welding CapabilityControls and Operational FeaturesFunction OFFWith Stick Welding Auto Adaptive ARC ForceRear Control Panel Table of Contents Accessories Section Cable Plugs Compatible Equipment AccessoriesTable of Contents Maintenance Section Input Filter Capacitor Discharge Procedure MaintenanceRoutine Maintenance Thermal ProtectionFigure 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 OperationMinimum Output Pulse Width ModulationSec 31 m/sec 33 m/sec Maximum OutputInvertec 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 Case Cover Removal Procedure 7TROUBLESHOOTING & REPAIRF-7Test Description Materials NeededDisconnect 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-32Rated Output INPUT- Single Phase onlyOutput Recommended Meters for Machine Output TestsInvertec 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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