Telwin SUPERIOR TIG 251 DC-HF/LIFT VRD 400V + TIG ACC (816116) Инструкция по эксплуатации онлайн [5/148] 331524

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INVERTERWELDINGMACHINESFORTIGANDMMAWELDINGDESIGNEDFOR

INDUSTRIALANDPROFESSIONALUSE.

Note:Inthefollowingtexttheterm“weldingmachine”willbeused.

1.GENERALSAFETYCONSIDERATIONSFORARCWELDING

The operator should be properly trained to use the welding machine safely

andshouldbeinformedabouttherisksrelatedtoarcweldingprocedures,the

associatedprotectionmeasuresandemergencyprocedures.

(Pleaserefertotheapplicablestandard“EN60974-9:Arcweldingequipment.

Part9:InstallationandUse).

- Avoiddirectcontactwiththeweldingcircuit:theno-loadvoltagesuppliedby

theweldingmachinecanbedangerousundercertaincircumstances.

- When the welding cables are being connected or checks and repairs are

carriedouttheweldingmachineshouldbeswitchedoffanddisconnected

fromthepowersupplyoutlet.

- Switch off the welding machine and disconnect it from the power supply

outletbeforereplacingconsumabletorchparts.

- Maketheelectricalconnectionsandinstallationaccordingtothesafetyrules

andlegislationinforce.

- Theweldingmachineshouldbeconnectedonlyandexclusivelytoapower

sourcewiththeneutralleadconnectedtoearth.

- Make sure that the power supply plug is correctly connected to the earth

protectionoutlet.

- Donotusetheweldingmachineindamporwetplacesanddonotweldinthe

rain.

- Donotusecableswithworninsulationorlooseconnections.

- Donotweldoncontainersorpipingthatcontainsorhascontainedammable

liquidorgaseousproducts.

- Donotoperateonmaterialscleanedwithchlorinatedsolventsornearsuch

substances.

- Donotweldoncontainersunderpressure.

- Removeallammablematerials(e.g.wood,paper,ragsetc.)fromtheworking

area.

- Provideadequateventilationorfacilitiesfortheremovalofweldingfumesnear

thearc;asystematicapproachisneededinevaluatingtheexposurelimitsfor

the welding fumes, which will depend on their composition, concentration

andthelengthofexposureitself.

- Keep the gas bottle (if used) away from heat sources, including direct

sunlight.

- Useelectricinsulationthatissuitableforthetorch,theworkpieceandany

metalpartsthatmaybeplacedonthegroundandnearby(accessible).

 Thiscannormallybedonebywearinggloves,footwear,headprotectionand

clothingthataresuitableforthepurposeandbyusinginsulatingboardsor

mats.

- Alwaysprotectyoureyeswiththerelativelters,whichmustcomplywithUNI

EN169orUNIEN379,mountedonmasksorusehelmetsthatcomplywithUNI

EN175.

 Use the relative re-resistant clothing (compliant with UNI EN 11611) and

weldinggloves(compliantwithUNIEN12477)withoutexposingtheskinto

the ultraviolet and infrared rays produced by the arc; the protection must

extend to other people who are near the arc by way of screens or non-

reectivesheets.

- Noise:Ifthedailypersonalnoiseexposure(LEPd)isequaltoorhigherthan85

dB(A)becauseofparticularlyintensiveweldingoperations,suitablepersonal

protectivemeansmustbeused(Tab.1).

- The ow of the welding current generates electromagnetic elds (EMF)

aroundtheweldingcircuit.

Electromagneticeldscaninterferewithcertainmedicalequipment(e.g.Pace-

makers,respiratoryequipment,metallicprosthesesetc.).

Adequateprotectivemeasuresmustbeadoptedforpersonswiththesetypesof

medicalapparatus.Forexample,theymustbeforbiddenaccesstotheareain

whichweldingmachinesareinoperation.

Thiswelding machineconforms totechnicalproductstandardsfor exclusive

useinanindustrialenvironmentforprofessionalpurposes.Itdoesnotassure

compliancewiththebasiclimitsrelativetohumanexposuretoelectromagnetic

eldsinthedomesticenvironment.

Theoperatormustadoptthefollowingproceduresinordertoreduceexposure

toelectromagneticelds:

- Fastenthetwoweldingcablesasclosetogetheraspossible.

- Keepheadandtrunkasfarawayaspossiblefromtheweldingcircuit.

- Neverwindweldingcablesaroundthebody.

- Avoidweldingwiththebodywithintheweldingcircuit.Keepbothcableson

thesamesideofthebody.

- Connecttheweldingcurrentreturncabletothepiecebeingwelded,asclose

aspossibletotheweldingjoint.

- Donotweldwhilecloseto,sittingonorleaningagainsttheweldingmachine

(keepatleast50cmawayfromit).

- Do not leave objects in ferromagnetic material in proximityof the welding

circuit.

- Minimumdistanced:20cm(Fig.O).

-ClassAequipment:

Thiswelding machineconforms totechnicalproductstandardsfor exclusive

use in an industrial environment and for professional purposes. It does not

assure compliance with electromagnetic compatibility in domestic dwellings

and in premises directly connected to a low-voltage power supply system

feedingbuildingsfordomesticuse.

EXTRA PRECAUTIONS

- WELDINGOPERATIONS:

 - Inenvironmentswithincreasedriskofelectricshock.

 - Inconnedspaces.

 - Inthepresenceofammableorexplosivematerials.

 MUSTBEevaluatedinadvancebyan“Expertsupervisor”andmustalwaysbe

carriedoutinthepresenceofotherpeopletrainedtointerveneinemergencies.

 Allprotectivetechnical measures MUST be taken asprovidedin7.10;A.8;

A.10oftheapplicablestandardEN60974-9:Arcweldingequipment.Part9:

InstallationandUse”.

-The operatorMUST NOT BE ALLOWED to weldin raised positions unless

safetyplatformsareused.

-VOLTAGE BETWEEN ELECTRODE HOLDERS OR TORCHES: working with

more than one welding machine on a single piece or on pieces that are

connected electrically may generate a dangerous accumulation of no-load

voltagebetweentwodifferentelectrodeholdersortorches,thevalueofwhich

mayreachdoubletheallowedlimit.

 An expert coordinator must be designated to measuring the apparatus

to determine if any risks subsist andsuitableprotectionmeasures can be

adopted,asforeseenbysection7.9oftheapplicablestandard“EN60974-9:

Arcweldingequipment.Part9:InstallationandUse”.

RESIDUAL RISKS

- OVERTURNING:positiontheweldingmachineonahorizontalsurfacethatis

abletosupporttheweight:otherwise(e.g.inclinedorunevenoorsetc.)there

isdangerofoverturning.

-IMPROPER USE: it is hazardous to usethe weldingmachine forany work

otherthanthatforwhichitwasdesigned(e.g.de-icingmainswaterpipes).

- Donotusethehandletohangtheweldingmachine.

2.INTRODUCTIONANDGENERALDESCRIPTION

2.1INTRODUCTION

This welding machine is a power source for arc welding, made specically for TIG

(DC) (AC/DC) welding with HF or LIFT strike and MMA welding with coated electrodes

(rutile, acid, basic).

The particular features of this welding machine (INVERTER), such as high-speed and

ENGLISH

INDEX

1.GENERALSAFETYCONSIDERATIONSFORARCWELDING............................................... 5

2.INTRODUCTIONANDGENERALDESCRIPTION.................................................................... 5

2.1 INTRODUCTION .................................................................................................................. 5

2.2 OPTIONAL ACCESSORIES ................................................................................................. 6

3.TECHNICALDATA...................................................................................................................... 6

3.1 DATA PLATE (FIG. A) ........................................................................................................... 6

3.2 OTHER TECHNICAL DATA .................................................................................................. 6

4.DESCRIPTIONOFTHEWELDINGMACHINE......................................................................... 6

4.1 BLOCK DIAGRAM ................................................................................................................ 6

4.2 CONTROL, ADJUSTMENT AND CONNECTING DEVICES ................................................ 6

4.2.1 Rear panel (FIG. C) .................................................................................................... 6

4.2.2 Front panel FIG. D ...................................................................................................... 6

4.2.3 Front panel (FIG. D1) ................................................................................................. 7

4.3 G.R.A. water cooling unit ENABLING and DISABLING instructions (where applicable) ...... 8

5.INSTALLATION........................................................................................................................... 8

5.1 PREPARATION..................................................................................................................... 8

5.1.1 Assembling the return cable-clamp (FIG. E) ............................................................... 8

5.1.2 Assembling the welding cable-electrode holder clamp (FIG. E) ................................. 8

5.2 POSITION OF THE WELDING MACHINE ........................................................................... 8

5.3 CONNECTION TO THE MAIN POWER SUPPLY ................................................................ 8

5.3.1 Plug and outlet ............................................................................................................ 8

5.4 CONNECTION OF THE WELDING CABLES ...................................................................... 8

5.4.1 TIG welding................................................................................................................. 8

5.4.2 MMA WELDING .......................................................................................................... 8

6.WELDING:DESCRIPTIONOFTHEPROCEDURE................................................................... 8

6.1 TIG WELDING ...................................................................................................................... 8

6.1.1 HF and LIFT strike ...................................................................................................... 8

6.1.2 TIG DC welding .......................................................................................................... 9

6.1.3 TIG AC welding .......................................................................................................... 9

6.1.4 Procedure ................................................................................................................... 9

6.2 MMA WELDING .................................................................................................................... 9

6.2.1 Procedure ................................................................................................................... 9

7.MAINTENANCE.......................................................................................................................... 9

7.1 ROUTINE MAINTENANCE .................................................................................................. 9

7.1.1 Torch ........................................................................................................................... 9

7.2 EXTRAORDINARY MAINTENANCE .................................................................................... 9

8.TROUBLESHOOTING................................................................................................................ 9

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Telwin SUPERIOR TIG 251 DC-HF/LIFT VRD 400V + TIG ACC (816116) Инструкция по эксплуатации онлайн [5/148] 331524

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