Mac Afric CUT 40 User manual

PLASMACUTTER
OWNER`SMANUAL
MODEL: CUT40/60
(POWERv-MOS CONTROLIED,PLASMA CUTTINGPOWERSUPPLY)

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PRODUCTSINTRODUCTION
Congratulationsforyourpurchase.
CUT 40 ,CUT60aremadebyinternationalmostadvantagedinvert
technology.50Hz/60Hzfrequencyisinvertedtohigh frequency(frequencyisover
100KHz)byV-MOSFET,thenreducevoltageandcommutecurrent,inverterpower
supplygeneratespowerfulDCweldingcurrentthroughPWM technology.Because
invertertechnologyofswitchpowerisused,volumeandweightofmaintransformer
hasreducedsubstantiallyandefficiencyhasbeenincreasedby30%.
Piloting arcsystemcanstrikearceasilywithprincipleofhigh frequency
oscillation.Ithasfunctionsthatitcansupplygasaheadandturnoffgasdelayed.
cutting machinehascharacteristicsasfollowing:
1. Stabilizing.
2. Reliability.
3. Lightness.
4. Energy-saving andnonoise.
5. Highcuttingspeed.
6. Cuttingsmoothlyandnopolishdemands.
Cuttingmachinecanbeusedwidely;itissuitableforcuttingstainless
Steel,alloysteel,mildsteel,copperandothercolormetalmaterials.

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MAINTECHNICALDATA
PANEL EXPLANATION
CUT40 Controlpanel
CUT60 Controlpanel
CUT60 Controlpanel
Data
Item CUT40 CUT 60
Powervoltage(v) Singlephase
220V 15% Three phase
380V 15%
Ratedinputpower(KVA) 6.6 7.9
No-loadvoltage(v) 230 295
Ratedinputcurrent(A) 30 12
Ratedoutputvoltage(v) 96 104
Dutycycle 60% 60%
Pilotarcmodel HFoscillating
HFoscillating
Burnerinterdiameter(mm) 1.0 1.2
Pressureofaircompressor(kg) 4-5 4-5
Thickness(mm) 1-12 1-20
Weight(kg) 9 19
Dimensions(mm) 371×153×232 480×204×303

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Thepanelpictureaboveisforreferenceonly.Ifanydifference withtherealmachine, pleasefollow
withthe realmachine.
INSTALLATION

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Airregulatorinstallation andoperation
1. FirmlytightandsealthecopperairholeatINandOUTterminalbyhigh pressure
rubbertubefirmly.
2. Tightandsealthemeterwithmeterface rubbertube.
3. Fixtheconnecting shelfwithscrewastheregulatorposition.
4. Getdowntheplasticscrewandfixtheregulatorontheshelf.
5. Turnontheairvalve,turnupthepressureadjusting knob,Turnthepressureto
ratedvolume(meterinsideshowsKG),and thenputdowntheknob.(+means
increasing pressure,--meansdecreasingpressure.)
6. Scaleofthemeterisasfollow.Thevolumeinthepictureis6kg.
7. If thewaterinthegasfilteringbottleistoo much,pleaseturnonthewatervalve
toletthewatergoout.
Regulator installation
INSTALLATION

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Inputcableconnection (encloseinstallingdiagram)
1. Everymachinehasbeendisposedapowercablewhichmustbeconnectedto
coordinatedvoltageclassincomplianceaccordingtoinputvoltageofcutting
machine.Ifcuttingmachinewhosepowervoltageis220Visconnectedwrongto
AC380V,thatwillcausecomponentsofinter-machineareburnedup.
2. Makesurepowercableisconnectedtopowerswitchreliablyandpreventfrom
oxidizing.
Makesurepowervoltageisinsidethewavedrange.
Outputcableconnection
1. Makesuretubeofpressedairisconnectedtocopperconnectorbyhigh-pressure
rubbertubefirmly.
2. Makesurecopperscrewofanotherendoftorchisconnectedtogas-electrify
integrationterminalthentightenthemclockwiserelation(preventfrom leakinggas).
Mobileplugofanotherendofearthcableisconnectedtopositiveterminaloffront
panelthentightenit.
3. Makesureairplugoftorchisconnectedtoswitchconnectorofpanel(Ifitis
pilote-arccutter,pilote-arccableoftorchisconnectedtoterminalofpilote-arc
wiring column.)
CHECK
1. Checkifcuttingmachineisgroundedreliablyaccordingtostandard.
2. Checkifall connectorsareconnectedfirmly.
3. Checkifpowervoltageiscorrect.
OPERATION
1. Openthepowerswitchoffrontpanel; makethepowerswitchisin “on”position.At
thistimeindicatorofpowerswitchison.Screenwillshowthecurrentvolume.
2. Adjustthegaspressureandmakeitisadequatetomachine,openthevalveof
pressedair.
3. Pressthecontrolknoboftorch,electromagneticvalveisstarting,soundofHF
arc-striking canbeheardandburneroftorchshouldflowoutgas(Burnerof
pilote-arccuttershouldspurtfire)
4. Makesurecutting currentisadequatetomachineaccordingtothicknessofcutting
piece.

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5. Itis1mm fromcoppertiptoworkpiece(it isfurtherifitisarc-supportingcutter.),
pressknoboftorchandburnandstrikearc,sparksofHFarcstrikingwill
diminishedimmediately. Usercanbegintocut.
INSTRUCTIONNOTES
Operation environment
1. Thecutting machinecamperformsinenvironmentwhereconditionsareparticularly
harshandwithoutsidetemperaturebetween –10and+40degreescentigradewitha
dampness levelofmax80%.
2. Avoidusinginsunshineanddroppingenvironment.
3. Keepmachinedryandavoidwaterintomachine.
4. Donotusethecuttingmachineinenvironmentwhereconditionispollutedwith
highconcentrationofdustorcorrosivegasintheair.
SAFTY
1. Makesuretheworking areaisadequatelyventilated.
Cutting machineislightanditsstructureiscompactandtheelectromagneticfields
generatedthehigh current.Sonaturalwindisnotsatisfytocooldowncomponents,
therearetwoaxial-flowfanininter-machineinordertoforcetocooldownit.
NOTES:Exhaustshuttermustnotinblockorcovered,itis0.3mfrommachineto
environmentobjects.Makesurekeepimprovingventilatedsituation,itisvery
importanttomachine.
2. Noover-load!
Limitedtocuttingcurrentstrictlyaccording tomaxallowablecurrentwithallkinds
ofdutycycles.
Donotexceedloadworkinginordertopreventfromshorting uselifetimeof
cuttingmachineevenburningup machine.
3. Noover-voltage!
Powervoltagerangeofcutting machineisaccording tomaintechnicaldatasheet.

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Voltageautomaticcompensationcircuitwillpreventfrom exceedingallowable
arrange.If powervoltageistoohigh,thatwilldamagedtocomponents.Usermust
becarefully.
4. Thereisagroundingscrew,whichismarkedgrounding behindcuttingmachine.
Makesurethemantleisgroundedreliablybycablewhosesectionis6square
millimeterinordertopreventfromleaking electrifyandbringingelectrostatic.
5.Interheat-variablecomponentisstartingifmachineisexceededindutycycles.
Thatwill cause-cutting machinewillstop working suddenlyandinterreddiodeis
lit.Userneednotbreakthecircuitandthefanmaycontinueworkinginorderto
cooldownthemachine. Oncetemperatureisreducedtoallowablearrange, machine
canbeoperatedagain.
CUTTINGNOTES
1. Makesurecoppertipmustnotconnecttoworkpiecedirectlywhenuseriscutting.
Torchshouldbeinclinedandit is1mm frominter-holeofcoppertiptoworkpiece
inordertoprotectcoppertip.
2. Asarc-supporting cuttingmachine,ifarc-supportingfrequencyisdownorthereis
noarcsupporting, usermaybegetridofoxidizedfilmofinterelectrodebyabrasive
paper.Thenmachinewillbeoperatednormally.
MAINTENANCEANDCHECK TROUBLE
Maintenance
1. Removedustbycompressedairregularly.If cuttingmachineisplacedin
environmentwhereconditionispollutedwithsmokeanddust,cuttingmachinemust
beremoveddusteveryday.
2. Pressureisadequatetocuttinginordertoprotectlittlecomponents.
3. Checktheelectrifyconnectorsandmakesuretheconnectorsareconnectedfirmly
(speciallyconnectandinsertcomponents),tightentheconnectors
4. Avoidwaterintomachineandmachinebecomedamp, orthemachinemustbedried
intimeandmeasuredinsulationbymeter.Afterthereisnoproblem,themachine

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canbeoperated.
5. If themachinewillnotbeusedlongtime,itshouldbeputinitsownpackingbox
andstoreindryenvironment.
Check Fault
CUT40
Faults ResolvableMethods
1. Switchindicatorison, fanisnotworking
andcontrolknobisoutofwork.
1. Overvoltage protectionisworking. Closemachine then
Openitagainafterseveralminutes.
2. Switchindicatorislitand fanisworking.
However,press controlknob oftorch, there
isno HFarc-strikingsound and
electromagneticvalve isnotworking.
1. Checkiftorchisopencircuit.
2. Checkifcontrolknob oftorchisdamaged.
3. Partofassistantpoweroftopboardisdamagedand there
isnoDC24Voutput.
3.Switchindicatorislitand fanisworking.
However,press controlknob oftorch, there
isno HFarc striking sound andinterred
diode islit.
1. CheckifMOSK1170oftop boardisdamaged(driver
mouldisdamaged).
2. Risingtransformerofbottomboardisdamaged.
3. Controlmouldisdamaged.
4. Switchindicatorislitand fanand
electromagneticvalve are working.
However,thereisno sound ofHF
arc-strikingand interreddiodeisnotlit.
There issome trouble inpartofarc-striking,suchas:
1. Itistoofarbetweendischargetiporthereisadhesion in
dischargetip.
2. Primarycoilofarc-strikingtransformerisdamagedor
poorcontact.
3. Checkiffourtimesvoltage rectifierdiode isstricken.
4. CheckifHFelectric capacity102/10KVisleaking.
Relayisdamaged.
5. Otherofmachine isnormal,butarc isnot
bestrickenwhenitisbeoperating.
1. Inputvoltageistoo low.
2. Pressureofaircompressoristoo highortoolow.

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Check Fault
CUT60
Faults ResolvableMethods
1.Opentheairswitch,fandoesnotworkand
thereisnothinginindicator.knoboftorchisout
ofworking.
1.Partofassistantpowerofcontrolpanelisdamagedand
thereisno DC24Voutput.
2.Opentheairswitch,fanisworking.Press knob
oftorch,electromagneticvalveisworking,there
isno sound ofHFarc-strikingand reddiode islit.
1. Circuit oftorchisbroken.
2. Knoboftorchisdamaged.
3. PartofassistantpowerisdamagedandthereisnoDC
24Voutput.
3.Opentheairswitch,fanandindicatorare
working.Press knoboftorch,electromagnetic
valveisstarting ,thereisno sound ofHF
arc-striking andreddiode isnotlit.
There issomefaultinpartofarc-striking,suchas:
1. Itistoo farbetweendischargetiporthereisadhesionin
discharge tip.
2. Primarycoilofarc-strikingtransformerisdamagedor
poorcontact.
3. Checkiffourtimesvoltage rectifierdiodeisstricken.
4. CheckifHFelectriccapacity102/10KVisleaking.
5.Relayisdamaged.
4.As arc-supporting cuttersuchas
CUT60/70/100/120,ifitcannotsupportarcor
supportarcweakly.
1. Wipe theelectrode byabrasive cloth.
2. Magnifyarc-strikingtipsuitably.