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MiTEC super200, super200P User manual

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SUPERSeries·User’sManual
PLEASEREADFIRST
ThankyouforpurchasingMitechequipment!
Foryoursafety,pleasereadthisuser'smanualbeforeinstallationand
operation.
Thanksforyoursupport!
MITECWELDINGEQUIPMENT(SHENZHEN)CO.,LTD.
ADD:MitechIndustryZone,LianrunRoad,DalangStreet,Bao’anDistrict,
Shenzhen,Guangdong,China
TEL:8675529822505/29822506
FAX:8675528095918
EMAIL:mitech@mitechwelding.com
WEBSITE:www.mitech.cc
SUPERSeries·User’sManual
-16-
REPAIRANDMAINTENANCE

Repairandmaintenanceshouldbedonebyprofessionalpersonandpleasemake
surethepowersupplyiscutoffbeforeanyoperation.Whenyoumeetanyinsoluble
problempleasecontactus.
Repairandmaintenance
1.Checkinternalandexternalcircuitofweldingmachineregularlyandmakesurethe
connectioniscorrectandtight.
2.Avoidwaterorsteaminfiltrateintotheinternalmachine.Ifitoccurspleasedrythe
machinethencheckbeforewelding.
3.Ifthewelderwillnotbeusedforalongtime,pleasepackitandstoreinthedryair.
Commonfaultandeliminationmethod
Fault Eliminationmethod
Switchonbutnoresponse
1.Checkifthepowersupplyvoltageiswrong
2.Checkifthepowerswitchhasabreakdown
3.Checkiftheassistantpowercircuitisworking
4.Checkifthereisanyloosewire
SoundsofHFarc-striking;
Nooutputcurrent
1.Checkifthetorchandearthclampcableareinopen
circuit
2.Checkiftheearthclampconnectstowork-piece
Outputcurrentunadjustable
1.Checkiftheadjustmentpotentiometerisworking
2.Checkifthecontrolmoduleisworking
3.Checkifthecurrentcanbeadjustedbyfootpedal
Manualadjustingnormal,but
withfootpedalabnormal
1.Checkifthemicroswitchinsidethefootpedalis
working
2.Checkifthelinearslidingpotentiometerinsidethe
footpedalisworking
OCledon
1.Checkiftheprotectivecircuitisworking
2.Checkifthetopboardcircuitisworking
Unabletobreaktheoxidation
film
1.CheckiftheAC/DCselectionswitchestoAC
2.Increasethepulsewidthorcleantheoxidationfilm
onthework-piece
Noenoughpowerforwelding
orcutting;
Arc-strikingeasytopause
1.Checkifthevoltageistoolow
2.Checkiftheairpressureistoohighortoolow
3.Checkifthetipandelectrodearenotwellcooperated
4.Checkiftherodisgoodornotandifit’sdryenough
SUPERSeries·User’sManual
-1-
INTRODUCTION
ThemachineissuppliedwithAC220Vinput.It’susingadvancedinverter
technologytotransfer50/60HZpowerfrequencyelectrictoabove100KHZhigh
frequencyelectricthroughtheinvertercombinedwithpowerfulcomponentssuchas
MOSFETandsoon.Thenaftervoltagereducing-rectifying-wavefilteringitalsoadopts
pulse-widthmodulation(PWM)andclosed-loopbackcircuitcontroltechnologyto
outputstableDCcurrent.Thusthisunithasthefollowingcharacteristics:highefficiency,
lowenergyconsumption,compact,gooddynamiccharacteristics,stablearc,
continuousadjustablecurrentandsoon.Alsoit’swithprotectionfunctionfor
overvoltage,overcurrentandoverheattoensurethesafetyanddurabilityofthewelder.
Thewelderisofconstantcurrentcharacteristics,andweldingcurrentis
stableanddoesn'tchangewiththearc.Andincuttingprocess,thetemperature
canreach10000-15000
afterthearciscompressedbyhigh-speedflowingair,then
themachineentersintohighionizationstateandgetspowerfulplasmaarc.
Theunitiswithfootpedalconncetorwhichisforremotecurrentcontrol
andmoreconvenientforoperation.Andit'swidelyusedinaluminum,carbon
steel,stainlesssteel,cooperandtitaniumwelding,etc.
Welcometopurchasingourproductandgivingusmorevaluableadvice.Andwe
willbecommittedtoperfectproductsandservicestocreatethetopbrandamongthe
weldingindustry.
1.
Creepage-protectingswitchshouldbeusedwhenyouoperatethemachine!
2.
Withinindoorenvironmentthemachinemayproduceradiowave,sotheuser
shouldmakefullofpreventivemeasures.
3.
Pleasemakesurethepowersupplyiscutoffbeforeanyconnectingoperation.
4.
Ifdistancebetweenwork-pieceandmachineistoofar( 50m),andwelding
cablesaretoolong,pleaseselectthecablewithbiggersectiontoreducethe
voltagedropping.
SUPERSeries·User’sManual
-14-
SOLUTIONTOFAULT
Belowphenomenonisrelatedtofittings,weldingmaterials,environmentfactor,
supplypowers,pleasetrytoimprovetheweldingenvironment.
1.Currentisunstableduringweldingprocessanditmaybecaused
bythefollowings
1.1Electricnetworkvoltagechanges.
1.2Harmfulinterferencesfromelectricnetworkorotherequipments.
1.3Undersizeofexternalinputcable.
2.Outputcurrentnotuptoratedvalue
Currentwillnotmatchthesettingvaluewhenpowervoltagedepartsfromtherated
value.Whilevoltageislowerthantheratedvalue,themaxoutputmaybelowerthan
theratedvalue.
3.Arc-strikingdifficultandeasilypausesunderMMAorTIG
3.1Makesuretherodortungstenisofgoodqualityotherwiseitisdifficulttomeetthe
requestofthehighqualitywelding.
3.2Itwillbehardtostrikearciftherodisnotdryenoughorthetungstenisnot
sharpened.Itwillalsocauseunstablearcandtheweldingqualitywillbe
influencedbyincreaseddefect.
4.ToomuchspatterunderMMAwelding
4.1Highcurrentwithrodofsmalldiameter.
4.2Theoutputterminalpolarityisreversed.Fornormaluseyoucanadoptpositive
connectionwhichmeanstheholderconnectsto“-”polarityandwork-piecetothe
“+”polarity,sopleaseexchange.
5.Unsmoothcuttingappearanceandunsatisfactorycuttingeffect
5.1 Make sure the compressed air source is stable and with enough pressure.
Normallytheairpressureshouldbenotlessthan0.3Mpa(around3Kgf/cm²),and
therangeoffluctuationshouldbeunder±0.05Mpa.
5.2Theelectrodeandtipdiameterdonotmatchthecuttingcurrentverywell.
Tipstandard
Currentrange 10 30A 30 40A 60 100A
Tipdiameter 1.0mm 1.2mm 1.3mm
SUPERSeries·User’sManual
-3-
MAINPARAMETER
Model
Parameter
Inputpowervoltage(V)
Inputvoltagefrequency(HZ)
Ratedinputcurrent(A)
Ratedinputpowercapacity(KVA)
Outputcurrentrange(A)
No-loadvoltage(V)
Ratedoutputvoltage(V)
Pre-flowtime(S)
Clearwidth(%)
Down-slopetime(S)
Pulsewidth(%)
Pulsecurrentrange(A)
Pulsefrequencyrange(HZ)
Post-gastime(S)
Arc-striking HF HF
Efficiency(%)
Dutycycle(%)
Powerfactor
Insulationclass
Protectionclass
Weight(KG)
Dimension(mm)
SUPERSeries·User’sManual
-12-
INSTALLMENT&OPERATION
Theratedcurrentandthediameteroftheoutputcable
(max.temperatureofconductor60
)
Ratedcurrentofthemax.dutycycle(A)
Ratedsectionof
copperconductor
(mm
2
)
100% 85% 60% 30% 20%
16 105 115 135 190 235
25 135 145 175 245 300
35 170 185 220 310 380
50 220 240 285 400 490
70 270 195 350 495 600
95 330 360 425 600 740
120 380 410 490 690 850
185 500 540 650 910 1120
Thesectionandthelengthoftheweldingcable
Section(mm
2)
Rated
current(L/A)
L=20m
L=30m
L=40m
L=50m
L=60m
L=70m
L=80m
L=90m
L=100m
100 25 25 25 25 25 25 25 28 35
150 35 35 35 35 50 50 60 70 70
200 35 35 35 50 60 70 70 70 70
300 35 50 60 60 70 70 70 85 85
400 35 50 60 70 85 85 85 95 95
500 50 60 70 85 95 95 95 120
120
600 60 70 85 85 95 95 95 120
120
SUPERSeries·User’sManual
-5-
PANELDESCRIPTION
UsageDescription
1.Clickthepowerswitchto“ON”positionforstartingthemachine.
2.TheOCledwillbeonifthereisanyfailure.
3.InputpowervoltageisAC220V.
4.Thereisagroundscrewintheleftcorneroftherearpanelwithsymbol.The
groundcableneedstobeconnectedwiththegroundscrewbeforeusing.
5.Pleasemakesurethepowersupplyiscutoffbeforeanyconnectingoperationand
turnontheswitchafterconfirmingit’swellinstalled.
Adjustmentknob:
1.Pre-flowtime:thetimeofargonflowingoutbeforeweldingcurrent
2.Current:toadjusttheweldingcurrentaccordingtotheweldingrequirement.
3.Clearwidth:weldingcurrentdirectionchangealternately.Pleasenotethatwhenthe
currentisabove200A,you’dbetterselectthecleanwidthbelow30%.
Andthecleanwidthabove50%shouldbeselectedifthecurrentis
below100A.
4.Down-slopetime:togetniceweldingspotduringarc-extinction,thecurrentshouldbe
turnedoffgraduallyuntilitstops.
5.Post-gastime:tokeeptheargongasflowingforsometimeafterarc-extinctionin
ordertoavoidtheweldingspotgettingoxidized.
6.Pulsefrequency:toadjustthepulsefrequencywithPULSEfunctionon.
7.Pulsewidth:toadjustthepulsewidthwithPULSEfunctionon.
8.Peakcurrent:toworkwithcurrentadjustmentwithPULSEfunctionon.
SUPERSeries·User’sManual
-10-
INSTALLMENT&OPERATION
ForCUT
1.ConnectthecompressedairsourcewithINterminalofgasregulatorbygashose,
and the OUT terminal with copper connection on rear panel of the machine,then
fastentheconnectorwithhoseclamptopreventfromgasleaking,atthesametime
please make sure enough dry flowing gas with suitable pressure is supplied. The
installationofgasregulatorisasbelow:
1.1FastentheairtipwithtapetoINandOUTterminalofthegasregulator.
1.2Fastentheheadofthegasregulatorwithtape.
1.3Fixtheconnectingframetothegasregulatorinstallationsiteontherearpanel
with screw, unscrew the rubber nut and fix the regulator to the frame. The
regulatoralsocanbefixedonotherlinkspan,butverticalinstallationshouldbe
done.
1.4Openthegasvalveandadjusttoadequateairpressureandflow.
Remark:“+”meansupairpressureand“-”meansdownairpressure.
1.5Whentoomuchwatergatheredinthefiltercylinder,drainoffthewater.
2.Correctlyconnectthetorchandearthclampaccordingtothesketch.
2.1 The connector of gas-electricity integration to the front panel and fasten it
clockwise.
2.2 Thepinconnectortothefrontpanel
andfastenitclockwise.
2.3 Thecableconnectoroftheearthclamptothepositiveterminal“+”.
3.Switchto“CUT”andClickthepowerswitchto"ON"positionthenthecoolingfanwill
starttoworkimmediately.
4.Openthegasregulatorvalveandadjusttoadequateairpressureandflow.
Attention:Pleasemakesuretheairpressureandthecurrentareadjustedtothebest
extentinordertoachievethebestcutting.Toohighgasflowwillstrengthen
thecoolinganditwillmakeunstablearcevennoarc.Howevertoolowgas
flowwillmaketipandelectrodeoverheatandeasilyburn.
5.Clickonthetorchswitchandsolenoidvalvestarts,alsoHFarc-strikingcanbeheard,
meanwhilegasflowsoutthroughtip.
SUPERSeries·User’sManual
-7-
INSTALLMENT&OPERATION
ForMMA
Correctlyconnecttheelectrodeholderandearthclampaccordingtothesketch.
1. Put the cable connector of the electrode holder to the negative terminal “-“and
fastenitclockwise.
2. Pleasefollowpoint1toconnecttheearthclamptothepositiveterminal“+”
3. Please pay attention to the connecting polarity and there are two connecting
methodforDCweldingmachine:positiveconnectionandnegativeconnection.
3.1 Positive connection: holder connects with “-“polarity, work-piece with the “+”
polarity.
3.2 Negativeconnection:work-piecetothe“-“polarity,electrodeholdertothe“+”
polarity.
3.3 Choose suitable method according to the welding requirement. If unsuitable
methodisselected,itwillcauseunstablearc,morespattersandconglutination.
Ifsuchcaseoccurs,pleasechangethepolarityoftheweldingcables.
4. Switchto“MMA”.
5. Switch the power switch to “ON” position then the cooling fan will start to work
immediately.
6. Pleaseadjustappropriateweldingcurrentandrodaccordingtothicknessofwork-
pieceandweldingcraft.
Electrodestandard
ElectrodeDiameter(mm)
1.6 2.0 2.5 3.2 4.0 5.0
WeldingCurrent(A) 25-40 40-65 50-80 100-130
160-210
200-270
No. Name
1 Earthclamp
2 Electrodeholder
SUPERSeries·User’sManual
-8-

INSTALLMENT&OPERATION
ForTIG
1.Connectgashosewithcopperconnectiononrearpanelofthemachinethenfasten
theconnectorwithhoseclamptopreventfromleakinggas.
2.Pleaseconnecttheearthclampandtorchcorrectlyasbelow:
2.1 The connector of gas-electricityintegrationtothefront panel
and fasten it
clockwise.
2.2 Thepinconnectortothefrontpanel
andfastenitclockwise.
2.3 Thecableconnectoroftheearthclamptothepositiveterminal“+”.
3.Switchto“TIG”andclickthepowerswitchto“ON”thenthecoolingfanwillstartto
workimmediately.
4.Opentheargonregulatorvalveandadjusttoadequateairpressureandflow.
5.Clickonthetorchswitchandthenthesolenoidvalveclickson,alsoHFarc-striking
canbeheard,meanwhileargongasflowsoutthroughtip.
Attention:Thetorchswitchshouldbekeptonforseveralsecondsbeforeweldingforthe
firsttime,andit’sreadytoworkafteralltheairisout.Andargonwillstillflow
outinseveralsecondswhentheweldingstopsandthisspecialdesignisto
continue protecting the welding spot before cooling. In that case, please
remaintheweldingpositionforawhileeventhearcisextinct.
6.Pleaseadjustappropriateweldingcurrentaccordingtothethicknessofworkpiece
andweldingcraft.
7. Pleasekeepadistanceof2-4mmbetweenthetungstenandwork-piece,thenclick
onthetorchswitchandtherewillbeHFsparkbetweenelectrodeandwork-piece,
afterarc-strikingthesoundfromtheHFdischarginginthemachinewilldisappearat
once,andnowit’sreadytoweld.
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