Rating Plate

NEMA EW 1

IEC 974-1

Designates welder complies with National Electrical Manufacturers Association requirements EW 1. (Export Model only)

Designates welder complies with International Electrotechnical commission requirements 974-1. (European model only)

Three Phase Power

Transformer

Rectifier

Rectified DC Output

Constant Voltage Characteristic

Line Connection

Shielded Metal Arc Welding

Flux Cored Arc Welding

IP21

Designates Welder can be used in environments with increased hazard of electric shock. (European model only)

Degree of protection provided by the enclosure

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Image 10

Lincoln Electric IM481-B manual Rating Plate, Degree of protection provided by the enclosure

Contents

Safety Depends on You IM481-B Safety Electric Shock can kill Welding and Cutting Sparks can Cause fire or explosion Iii Précautions DE Sûreté Sûreté Pour Soudage a L’Arc Please Examine Carton and Equipment For Damage Immediately Table of Contents Output Control LOCAL-REMOTE Switch Meanings of Graphic SymbolsPower ON-OFF Switch Output Control Dial Circuit Breaker Voltmeter SwitchThermal Protection Light Rating Plate Degree of protection provided by the enclosure Chassis Ground Connection Earth Ground ConnectionSignifying the Earth Ground Connection Signifying the Chassis Ground Connection Recommended Processes & Equipment Operational Features & ControlsGeneral Machine Description Design Summary WATER COOLER CONNECTOR Auxiliary Power ConnectionsRemote Control Connections Case Features Paralleling Machine & Circuit Protection Thermal Protection LightMETER OPTION Technical Specifications Input Power Connections InstallationSafety Precautions FALLING EQUIPMENT can cause Output Cables Installation of Field Installed OptionsOutput Cable Connections Electric Shock can kill Undercarriages K817P, K841 Wire Feeder Control Cable ConnectionsConnection of CV 500-I to LN-22 or LN-25 Operating Instructions Power Source OperationSafety Precautions ELECTRIC SHOCK can kill Duty Cycle Amps Volts PIN LEAD NO Function Front View of 14-PIN Connector ReceptacleTerminal Strip Connections Routine Maintenance VAC Auxiliary Power for Water CoolerMachine and Circuit Protection Troubleshooting HOW to USE Troubleshooting Guide TROUBLESHOOTING GUIDE Trouble Cause What To Do Faulty Output Control potentiometer Trouble Cause What To Do Power I/O Switch Check Connecting the Remote Control to the MachineFault Protection Operation Output Voltage Power Diode Test Remote Control CheckPower Rectifier Bridge Assembly Checking Procedure Power Silicon Controlled Rectifier Test Rubber Boot Gate leads plug to Control P.C. board To plug To T1 main transformer Enhanced Diagram Page Page Precaucion Warnung