Lincoln Electric IM579 manual Positive Voltage Sensing Polarity

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B-18

B-18

OPERATION

Use the ELECTRODE SENSE LEAD KEY to select either the - output terminal or the electrode sense (67) lead for the positive voltage reference.

The work sense (21) lead is used only in rare circum- stances. For most installations, use the WORK SENSE LEAD KEY to select the + output terminal for the negative voltage reference. Consult the factory if use of the work sense (21) lead is desired.

The two wire feeders can only be connected in the same manner, either by the Positive Polarity or the Negative Polarity setup.

FIGURE B.10

POSITIVE VOLTAGE SENSING POLARITY

Power

Control Cable (includes 67 lead)

Wave

-+

Electrode Sense Lead

67

Wire Feeder

Block

Electrode Cable

Work Cable

FIGURE B.11

NEGATIVE VOLTAGE SENSING POLARITY

	Power		Control Cable (includes 67 lead)
	Wave
			Electrode Sense Lead

			67
	-	+	Wire Feeder
			Block

Electrode

Cable

Work Cable

POWER WAVE 450

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Contents Safety Depends on You Invertec Power WavetmElectric Shock can kill SafetyARC Rays can burn Fumes and Gases can be dangerousFor Electrically pow- ered equipment Welding Sparks can cause fire or explosionCylinder may explode if damaged May be dangerous For Engine powered equipmentElectric and Magnetic Fields Précautions DE Sûreté Please Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Pulse Pulse and Background Current Range Voltage Range InstallationTechnical Specifications Power Wave High Frequency Precautions Safety PrecautionsInput Connections Select Suitable LocationInput Power Connections Input Voltage Reconnect ProcedureInput Fuse and Supply Wire Considerations Ground ConnectionsOutput Connections Wire Feeder ConnectionsWork and Electrode Cable Connections Water Cooler ConnectionsOperation Safety InstructionsOperating Instructions Fumes and Gases can beSave process information if desired Select your process informationOperational Features and Controls Design Features and AdvantagesSynergic Welding Recommended ProcessesCase Front Controls Controls and SettingsOverview Installing AN OverlayOperating Overlays Name Overlay TypesOverlay Overlay ID Number = PULSE, GMAW, FCAW, and STICK/TIG Process Selection OverlayOperation Then Memory Location # is Empty Weld from Memory OverlayFigure B.6 Weld from MEMORY, Dual Procedure Overlay Weld from MEMORY, Dual Procedure OverlayOperation Position Procedure Dual Wire FEEDERS, Dual Procedure Overlay OptionalRecall from Memory KEY Memory Location Numbers Limits Overlay OptionalOperation Figure B.9 Setup Overlay Setup OverlayPositive Polarity Voltage Sensing Wire Feeder Setup DescriptionTable B.1 Positive Voltage Sensing Options Negative Polarity Voltage SensingPositive Voltage Sensing Polarity Flux Cored ARC Welding Fcaw and Gmaw Procedures Overview of Welding ProceduresPulse Procedures STICK/TIG ProceduresExplanation of Table B.3 Pulse processes Pulse WeldingOver Current Protection Overload ProtectionThermal Protection OPTIONS/ACCESSORIES AccessoriesWire Feeder Setup Guns and CablesWater Cooler Usage Input Filter Capacitor DIS Charge Procedure MaintenanceRoutine and Periodic Maintenance Figure D.1 Resistor Locations Locate the #9 and #12 terminals, identified by Discharge labels, on each of the four SwitchPreventive Maintenance Figure D.4 General Component Locations HOW to USE Troubleshooting Guide TroubleshootingSists, contact your local Lincoln Troubleshooting GuideAuthorized Field Service Facility Play fans run Check circuit breaker 5-amp Observe Safety Guidelines Controls and Settings Power-up Inspect the overlay bar code Saved in memory are different Check for proper shielding gas Wiring Diagram Wiring DiagramsNeed Welding Training? How To Read Shop DrawingsNew Lessons in Arc Welding Precaucion Aviso DE Limited Warranty