Lincoln-electric IM467 SQUARE WAVE TIG 355 Manuel d'utilisateur

IM467-BMay, 2003For use with machines having Code Numbers: 9951, 10056, 103899952, 10057, 103909953, 100589954, 100599955, 10060SQUARE WAVE TIG 355Saf

Read this entire installation section before youstart installation.SAFETY PRECAUTIONSELECTRIC SHOCK can kill.• Do not touch electrically live partsor

3. Be sure the torch and work cable rubber coveringsare free of cuts and cracks that allow high fre-quency leakage. Cables with high natural rubberco

INSTALLATIONA-4 A-4SQUARE WAVE TIG 355FIGURE A.2 – INPUT SUPPLY CONNECTIONSELECTRIC SHOCK can kill.• Do not touch electrically live partsor electrodes

The Square Wave TIG 355 should be permanentlywired into the power system. Plugs or connectors arenot recommended.INSTALLATIONA-5 A-5SQUARE WAVE TIG 3

OUTPUT CONNECTIONSELECTRIC SHOCK can kill.• Keep the electrode holder, TIGtorch and cables insulation ingood condition and in place.• Do not touch e

DO NOT operate a water-cooled torch unless water isflowing. Water doesn’t flow until the solenoid is actu-ated.If using a water-cooled torch with a M

OPERATIONB-1 B-1SQUARE WAVE TIG 355OPERATING INSTRUCTIONSRead and understand this entire section of operatinginstructions before operating the machine

GENERAL DESCRIPTIONThe Square Wave TIG 355 is a constant current, singlerange square wave AC/DC TIG (GTAW) arc weldingpower source with built-in high

• 115 Volt receptacle with 15 amp circuit breaker.• Excellent arc starting and stability up through 400amps.• High resistance to AC arc rectificati

CONTROLS AND SETTINGSUPPER CASE FRONT CONTROLSControls on the upper case front control panel areused for manual TIG and stick welding. Their func-tio

FOR ENGINEpowered equipment.1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be running.

UPPER CASE FRONT CONTROL PANELThe upper case front panel controls are used for man-ual TIG and stick welding.1. CURRENT CONTROL SWITCHA two-position

6. PEAK CURRENT CONTROLPresets the maximum welding current themachine will produce, from 2 through 400 amps.The preset current is displayed on the dig

At Maximum, the arc will be more forceful and lessprone to sticking but will produce more spatter.12. PREFLOWThis control adjusts the amount of time t

Example: The Peak Current control is preset at 50amps and the Amptrol is partially down, giving apeak current of 30 amps. If the BackgroundCurrent co

• ARC ESTABLISHED LED goes on when the arcis fully established and goes out if the arc goesout.• START LED is on from the time the arc is estab-lish

OPERATIONB-10 B-10SQUARE WAVE TIG 355LOWER CASE FRONT CONTROLSRefer to Figure B.3 for the location of the following controls.FIGURE B.3 – LOWER CASE F

1. POWER ON/OFF — A momentary start/stoppushbutton, which controls the input contactor. Ifthe input power supply goes off or if the thermo-stat in th

HAND AND FOOT AMPTROL OPERATIONBoth the Hand and Foot Amptrol (optional kits K870 orK963) work in a similar manner. They are meant to beused for remo

OPERATIONB-13 B-13SQUARE WAVE TIG 355FIGURE B.4 – AMPTROLS USED WITH CURRENT CONTROL IN THE LOCAL POSITIONFIGURE B.5 – AMPTROLS USED WITH CURRENT CONT

WELDING OPERATIONINITIAL START-UPBe sure the Square Wave TIG 355 has been installedcorrectly with respect to location, high frequency pro-tection, inp

iiSAFETYiiARC RAYS can burn.4.a. Use a shield with the proper filter and coverplates to protect your eyes from sparks andthe rays of the arc when weld

OPERATIONB-15 B-15SQUARE WAVE TIG 355TABLE B.1SPECIFIC EFFECTS OF CONTROLS(illustrated in the 2-Step Mode for clarity)PRESETCURRENTLOCAL CURRENT CONTR

OPERATIONB-16 B-16SQUARE WAVE TIG 355PRESETCURRENTPRESETCURRENTCRATER FILL% CURRENTMAX STARTTIMELOCAL OR REMOTE CURRENT CONTROLSTART SWITCH ONSTART CU

OPERATIONB-17 B-17SQUARE WAVE TIG 355PRESETCURRENTPRESETCURRENTCRATER FILL% CURRENTBACKGROUND% CURRENTCLOSE ARCSTART SWITCHOPEN ARCSTART SWITCHAFTER S

OPERATIONB-18 B-18SQUARE WAVE TIG 355TABLE B.2TYPICAL CURRENT RANGES(1) FOR TUNGSTEN ELECTRODES(2)DCEN (-) DCEP (+)Tungsten 1%, 2% 1%, 2%Electrode 1%,

TIG WELDING SEQUENCE OF OPERATION (2-STEP MODE)Do not leave stick electrode welding cable connected.It will be electrically “hot” when TIG welding.1.

11. Hold the Arc Start switch down until an arc isestablished. At this point, the Arc Start Switchcan be released, and the weld will continue.Press

OPTIONS/ACCESSORIESThe following options/accessories are available foryour Square Wave TIG 355 from your local LincolnElectric Distributor.Undercarria

MAINTENANCED-1 D-1SQUARE WAVE TIG 355WARNINGSAFETY PRECAUTIONS • Only Qualified personnel shouldperform this maintenance.• Turn the input power OFF

5. If any voltage is present, DISCHARGE EACH INDI-VIDUAL CAPACITOR as follows:a. Obtain a 500 Ohm resistor. Grip the 500 ohmresistor with insulated

MAINTENANCED-3 D-3SQUARE WAVE TIG 355FIGURE D.2 – GENERAL COMPONENT LOCATIONS1. OUTPUT RECTIFIER/SCR BRIDGE ASSEMBLY2. INPUT CONTACTOR3. RECONNECT

FOR ELECTRICALLYpowered equipment.8.a. Turn off input power using the disconnectswitch at the fuse box before working onthe equipment.8.b. Install equ

E-1 E-1SQUARE WAVE TIG 355TROUBLESHOOTINGTROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.GENERAL MACHINE TROUBLESYMPTOM

TROUBLESHOOTINGE-2 E-2SQUARE WAVE TIG 355TROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.STICK WELDINGSYMPTOM CAUSE AND

TROUBLESHOOTINGE-3 E-3SQUARE WAVE TIG 355TROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.TIG WELDINGSYMPTOM CAUSE AND R

E-4 E-4SQUARE WAVE TIG 355TROUBLESHOOTINGTROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.SYMPTOM CAUSE AND REMEDYMachin

TROUBLESHOOTINGE-5 E-5SQUARE WAVE TIG 355TROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.SYMPTOM CAUSE AND REMEDYTungst

TROUBLESHOOTINGE-6 E-6SQUARE WAVE TIG 355TROUBLESHOOTING GUIDE Observe Safety Guidelinesdetailed throughout this manual.ACCESSORIESSYMPTOM CAUSE AND R

DIAGRAMSSQUARE WAVE TIG 355F-1 F-1WIRING DIAGRAM - Square Wave TIG355DUAL VOLTAGE MACHINESINGLE VOLTAGE MACHINEMODES10LOCALSTICKCONTINUOUSREMOTETIGOFF

DIAGRAMSSQUARE WAVE TIG 355F-2 F-2DIMENSION PRINT - Square Wave TIG355 6-18-93C 17275 MS.W. TIG 355K84150.4126.00 6.6715.22.7424.12 .9423.2822.25

EQUIPMENT MANUFACTURER’S CERTIFICATIONType of Equipment Model NumberCode NumberSerial Number Operating Instruction Manual Number The High Frequency Ge

Notes

ivSAFETYivPRÉCAUTIONS DE SÛRETÉPour votre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parra

WARNINGAVISO DEPRECAUCIONATTENTIONWARNUNGATENÇÃOSpanishFrenchGermanPortugueseJapaneseChineseKoreanArabicREAD AND UNDERSTAND THE MANUFACTURER’S INSTRUC

WARNINGAVISO DEPRECAUCIONATTENTIONWARNUNGATENÇÃOSpanishFrenchGermanPortugueseJapaneseChineseKoreanArabicLEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE

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vvThank Youfor selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product •••as much

TABLE OF CONTENTSvi viSQUARE WAVE TIG 355PageSafety...

TABLE OF CONTENTSvii viiSQUARE WAVE TIG 355TIG Welding Sequence of Operation (4-Step Mode) .....B-

INSTALLATIONA-1 A-1SQUARE WAVE TIG 355TECHNICAL SPECIFICATIONS - SQUARE WAVE TIG 355INPUT - SINGLE PHASE ONLYInput Voltages: 208 230 460 575Input Curr