Lincoln Electric IM602-A manual ViSAFETY

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viSAFETY

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Electromagnetic Compatibility (EMC)

The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surrounding area may extend beyond the boundaries of the premises.

Methods of Reducing Emissions

Mains Supply

Welding equipment should be connected to the mains supply according to the manufacturer’s recommenda- tions. If interference occurs, it may be necessary to take additional precautions such as filtering of the mains supply. Consideration should be given to shielding the supply cable of permanently installed welding equip- ment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure.

Maintenance of the Welding Equipment

The welding equipment should be routinely maintained according to the manufacturer’s recommendations. All access and service doors and covers should be closed and properly fastened when the welding equip- ment is in operation. The welding equipment should not be modified in any way except for those changes and adjustments covered in the manufacturers instructions. In particular, the spark gaps of arc striking and stabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.

Welding Cables

The welding cables should be kept as short as possible and should be positioned close together, running at or close to floor level.

Equipotential Bonding

Bonding of all metallic components in the welding installation and adjacent to it should be considered. However, metallic components bonded to the work piece will increase the risk that the operator could receive a shock by touching these metallic components and the electrode at the same time. The operator should be insulated from all such bonded metallic components.

Earthing of the Workpiece

Where the workpiece is not bonded to earth for electrical safety, not connected to earth because of its size and position, e.g., ships hull or building steelwork, a connection bonding the workpiece to earth may reduce emissions in some, but not all instances. Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to users, or damage to other electrical equipment. Where necessary, the connec- tion of the workpiece to earth should be made by a direct connection to the workpiece, but in some countries where direct connection is not permitted, the bonding should be achieved by suitable capacitance, selected according to national regulations.

Screening and Shielding

Selective screening and shielding of other cables and equipment in the surrounding area may alleviate prob- lems of interference. Screening of the entire welding installation may be considered for special applications. 1

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1Portions of the preceding text are contained in EN 60974-10: “Electromagnetic Compatibility (EMC) prod- uct standard for arc welding equipment.”

L10093 3-1-96H

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Contents DC-655 California Proposition 65 Warnings SafetyE C T R I C S H O C K c a n kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéVSAFETY ViSAFETY Thank You Table of Contents Input Hertz Input Ampere Type 80C InstallationTechnical Specifications DC-655 Height Width Depth WeightNRTL/C Nrtl Input Power Three PhaseGmaw Fcaw Smaw SAWSelect Suitable Location Safety PrecautionsElectrical Input Connections Input Power Supply Connections Reconnect ProcedureLOW Inductance Terminal Output ConnectionsElectrode and Work Cables Table A.1Auxiliary Power Control Connections Terminal Strip 2 T.S.2 Terminal Strip 1 T.S.1Terminal Strips Recommended Processes and Equipment OperationGeneral Description General WarningsWelding Capability Design Features and AdvantagesOutput Terminals ON/REMOTE When this Controls and SettingsPower ON/OFF Switch This tog LOCAL/REMOTE Control Switch When thisFigure B.2 Lower Case Front Controls & Connections Machine Protection Welding Performance CC Mode ARC Force CV Mode CURRENT-LIMITINGCC Mode HOT Start CC Mode ARC GougingField Installed Options AccessoriesSEMI-AUTOMATIC Wire Feeders Automatic Wire FeedersAccessories General Maintenance MaintenanceSafety Precautions HOW to USE Troubleshooting Guide TroubleshootingProblems Troubleshooting Trol circuit. #75, #76, #77 Problems Troubleshooting Troubleshooting Troubleshooting PC Board Troubleshooting Guide Control P.C. Board PC Board Troubleshooting Guide Firing P.C. Board10TROUBLESHOOTINGE-10 Negative Positive DiagramsGND Negative Positive Receptacle Convenience, this extended #21 lead should be taped to 655 Wiring Diagram for Codes 10501,10503, 10504 Diagrams Diagrams Diagrams Diagrams Aviso DE Keep your head out of fumes Turn power off before servicing