Lincoln Electric SP-100 service manual Electrical Diagrams

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		G-4	ELECTRICAL DIAGRAMS
Return to Section TOC	Return to Master TOC	CONTROL P.C. BOARD G1842
Return to Section TOC	Return to Master TOC
Return to Section TOC	Return to Master TOC

Return to Section TOC

Return to Master TOC

	TOC	TOC
	Section	Master	NOTE: Lincoln Electric assumes no responsibility for liabilities resulting from board level troubleshooting. PC Board

			repairs will invalidate your factory warranty. This Printed Circuit Board schematic is provided for reference
	to	to	only. It may not be totally applicable to your machine’s specific PC board version. This diagram is intended
	to	to	to provide general information regarding PC board function. Lincoln Electric discourages board level trou-
	Return	Return
			bleshooting and repair since it may compromise the quality of the design and may result in Danger to the
			Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.

			SP-100

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Contents SP-100 Safety Electric Shock can killARC Rays can burn Fumes and Gases can be dangerousCylinder may explode if damaged Welding Sparks can cause fire or explosionElectric and Magnetic Fields May be dangerousPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation SectionInstallation Technical Specifications SP-100Safety Precautions Read entire installation section before startingInstallation Identify and Locate ComponentsWork Clamp Installation Select Suitable LocationOutput Connections TiltingGAS Connection GUN InstallationConnecting GUN Cable to the SP-100 Power Input ConnectionsGas Solenoid Inlet Fitting InputCode Requirements for Input Connections Requirements for Maximum OutputRequirements for CSA Rated Output Requirements for Rated OutputSP-100 Table of Contents Operation Wear eye, ear and body protec- tionOperational Features and Controls Design Features AdvantagesGeneral Description OffWire Loading Welding OperationsProcess Guidelines Sequence of OperationFriction Brake Adjustments Refer to Figure B-4Shielding GAS Making a WeldOverload Protection SP-100 Accessories Section 1ACCESSORIES Replacement PartsLincoln GAS Regulator Kits K467 Input Line Cord Innershield Welding KitsMaintenance Section Routine and Periodic Maintenance MaintenanceItems Requiring no Maintenance Liner trim length for the Magnum 100L gun red trigger Changing the Contact TIPChanging Drive Roll Figure D.3 SP-100 SUB Assemblies SP-100 Theory of Operation Figure E.1 Input Power Circuits Input Line VOLTAGE, FAN Motor and Main TransformerOutput CONTROL, RECTIFICA- Tion and Voltage Feedback Figure E.2 Output CircuitsTRIGGER, GAS Solenoid and Wire Drive 3THEORY of OperationSCR Operation Figure E.4 SCR OperationThermostat protects the machine from Troubleshooting Section Oscilloscope Waveforms1TROUBLESHOOTING & Repair HOW to USE Troubleshooting GuideTroubleshooting & Repair PC Board Troubleshooting ProceduresFacility Troubleshooting GuideAuthorized Field Service Below Code 9794 only Problems Symptoms Possible Areas of MisadjustmentsRecommended Course of Action Code 9794 and AboveFeeding Problems Troubleshooting Guide PC Board Connector Locations Codes 9794 and above 6J1 10J2 1J1 1J2 Codes below SP-1009TROUBLESHOOTING & Repair Scope SettingsVolts Volts/Div Normal Open Circuit Voltage WaveformVolts Typical Output Voltage Waveform Machine LoadedAbnormal Open Circuit Voltage Waveform Procedure Description ProcedureFAN Blade and Motor Removal Tools RequiredWire Drive Assembly Removal Motor Removal Procedure1A. for Codes Above 1B. for Codes belowWire Speed Range Retest After RepairMain Transformer Secondary Voltages Test Points Input Amps AT Rated Output Input Amps AC @ Output DCSP-100 Electrical Diagrams Section Diagram Wiring DiagramsWiring SP-100 Wiring Diagram Codes Below 4 5 1 MElectrical Diagrams Electrical Diagrams Control P.C. Board G1842Control P.C. Board G2314 Control P.C. Board G2314 SCR1, SCR2 SCR 81 Heatsink AsblyMachine Schematic Codes 9794 and Above ErrorMachine Schematic Codes Below 86R R63R64 1 5 KSVM Error Reporting Form