Lincoln Electric IM467-B Start Switch on, Pulse Switch on Crater Fill Switch on, Spot Switch OFF

Page 32

B-17

B-17

OPERATION

CLOSEARC STARTSWITCH

WELDBEGINS

OPENARC STARTSWITCH

EFFECT OF CONTROLS ON TIG WELDING

START TIME

START CURRENT

LOCAL CURRENT CONTROL

START SWITCH ON

PRESET

FILLCRATER

CURRENT%

CURRENT

(SHORT HOT START SHOWN)

PULSE SWITCH ON

CRATER FILL SWITCH ON

(SLOW FADE-OUT SHOWN)

SPOT SWITCH OFF

BACKGROUND

% CURRENT

LOCAL OR REMOTE

ARCCLOSE SWITCHSTART

SPOT SWITCH ON

ARCCLOSE PREFLOW

ARCOPEN SWITCHSTART TIMESPOTAFTER

ALL OTHER LOWER PANEL SWITCHES

SWITCH

OFF

START

PRESET

(SPOT TIME IS CUT SHORT IF ARC

SPOT TIME

SPOT TIME

CURRENT

START SWITCH IS OPENED BEFORE

END OF SPOT TIME)

REMOTE AMPTROL CONTROLS CURRENT

FROM 2 AMPS UP TO PRESET CURRENT

THE SPOT TIMER CAN BE USED TO TIME A PROGRAMMED SEQUENCE OF START AND/OR PULSE UP TO 5 SECONDS LONG, OPTIONALLY FOLLOWED BY CRATER FILL. IF CRATER FILL IS USED, FADE-OUTBEGINS AT THE END OF THE SPOT TIME.

START & PULSE & CRATER FILL

SPOT

SPOT & START PULSE & CRATER FILL

SQUARE WAVE TIG 355

Image 32

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 TIGHigh Frequency Interference Protection Safety PrecautionsSelect Suitable Location 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 LEDStart Controls Spot ControlsPulse 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 SwitchALL Machines Auxiliary PowerOverload Protection 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