Lincoln Electric IM467-B manual Reconnect Procedure, Figure A.2 Input Supply Connections

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A-4

A-4

INSTALLATION

FIGURE A.2 – INPUT SUPPLY CONNECTIONS

WARNING

ELECTRIC SHOCK can kill.

•Do not touch electrically live parts or electrodes with your skin or wet clothing.

•Insulate yourself from the work and ground.

•Always wear dry insulating gloves.

RECONNECT PROCEDURE

On multiple input voltage welders, be sure the recon- nect panel is connected according to the following instructions for the voltage being supplied to the welder.

CAUTION

Failure to follow these instructions can cause immedi- ate failure of components within the welder.

Refer to Figure A.2 for the following procedure. Welders are shipped connected for the highest input voltage listed on the rating plate. To change this con- nection for a different input voltage, reconnect both the power strap (P) and control lead (C) to their respective terminals corresponding to the input volt- age used. Designations on reconnect panel, LOW, MID and HIGH, correspond to the nameplate input voltages of a triple voltage welder. Dual voltage welders use only LOW and HIGH. Single voltage welders use only HIGH.

EXAMPLE: On a 208/230/460 volt welder, LOW is 208V, MID is 230V, and HIGH is 460V.

Fuse the input circuit with the recommended super lag fuses or delay type1 circuit breakers. Choose an input and grounding wire size according to local or national codes or refer to Tables A.1 and A.2. Using fuses or circuit breakers smaller than recommended may result in “nuisance” shut-offs from welder inrush currents even if not welding at high currents.

Unbalanced AC TIG welding draws higher input cur- rents than those for stick, DC TIG, or Balanced AC TIG welding. The welder is designed for these higher input currents. However, where unbalanced AC TIG welding above 230 amps is planned, the higher input currents require larger input wire sizes and fuses. See Table A.2.

1Also called “inverse time” or “thermal/magnetic” circuit breakers. These circuit breakers have a delay in tripping action that decreases as the magnitude of the current increases.

SQUARE WAVE TIG 355

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Contents Square Wave TIG Safety Electric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Thank You Table of Contents Section C Section DSection E P196 SeriesInstallation Technical Specifications Square Wave TIGSafety Precautions Select Suitable LocationHigh Frequency Interference Protection Input Connections Ground ConnectionInput Supply Connection Electric Shock can killReconnect Procedure Figure A.2 Input Supply ConnectionsTable A.1 Recommended Input Wire and Fuse Sizes Table A.2 Recommended Input Wire and Fuse SizesVolt/Freq Nameplate AWG Copper Cond Volt/Freq AC Output AWG Copper CondOutput Connections TIG Torch ConnectionLengths up to 100 to 200 ft 200 to 250 ft 100 ft 30 m 30 to 61 m 61 to 76 mStick Electrode Cable Connection Safety Instructions Operating InstructionsOperational Features and Controls Design Features and AdvantagesGeneral Description Recommended ProcessesWelding Capability LimitationsControls and Settings Upper Case Front ControlsMode Switch STEP/4-STEP SwitchHigh Frequency Switch Upper Case Front Control PanelVOLTS/AMPS Switch Peak Current ControlAC Wave Balance Auto Balance LEDSpot Controls Pulse ControlsStart Controls Figure B.2 Status Indicator Light Sequence Square Wave TIG Crater Fill ControlsOperation Lower Case Front Controls Figure B.3 Lower Case Frontcontrols Square Wave TIGOperation Hand and Foot Amptrol Operation Operation Welding Operation Initial START-UPStick Welding TIG Welding GuidelinesIllustrated in the 2-Step Mode for clarity Table B.1 Specific Effects of ControlsCrater Fill Switch on OFFStart Switch on Pulse Switch on Crater Fill Switch onSpot Switch OFF Spot Switch onTable B.2 Typical Current RANGES1 for Tungsten ELECTRODES2 Dcen Dcep + Unbalanced Wave Balanced WaveTIG Welding Sequence Operation 2-STEP Mode TIG Welding Sequence Operation 4-STEP ModeTable B.3 Recommended Settings for TIG Welding Polarity SwitchAuxiliary Power Overload ProtectionALL Machines Accessories OPTIONS/ACCESSORIESMaintenance Input Power Factor Capacitor Discharge ProcedureRoutine and Periodic Maintenance Figure D.2 General Component Locations Troubleshooting Guide General Machine TroubleTroubleshooting Guide Stick Welding Symptom Cause and RemedyTroubleshooting Guide TIG Welding TIG Welding Lower Panel Controls Accessories K870 Foot Amptrol or K963 Hand AmptrolDiagrams Dimension Print Square Wave TIG355 Equipment Installation Certification Equipment MANUFACTURER’S CertificationPage Precaucion Aviso DE