TOPMAQ LGK-80S Manual de usuario

Processes

PlasmaArcCutting

Description

Input:Output:

Plasma Arc Cutting Power Source

USER

MANUAL

LGK-

80S

INVERTER AIR PLASMA CUTTING MACHINE

Please

read

the

User

Manual

carefully

before

use

the

machine.

CONTENTS

IDENTIFYINGSAFETYINFORMATION

●Thesymbolsarebeingusedtoidentifypotentialrisks.

●

When

seen

safety

symbol

the

manual,

must

understood

that

there

injury

risk

and

following

instructions

must

read

carefully

avoid

potential

risks.

●

While

welding

and

cutting,

keep

the

third

persons

and

especially

the

children

away

from

the

work

area.

UNDERSTANDINGTHESAFETYWARNINGS

Read

carefully

the

manual

and

the

labels

and

the

safety

warnings.

Learntooperatethemachineand howtomakethecontrolsproperly.

Operate

your

machine

convenient

work

areas.

Improper

modifications

fect

the

safety

your

machine

negatively

and

shorten

lifetime.

SAFETY

RULES

........................................................................

.................................

....................................

...

ELECTROMAGNETIC

COM

TIBILIT

......................................................................................................

...

1.TECHNICALINFORMATIONS........................................................................................................................7

1.1GENERALEXPLANATIONS......................................................................................................................7

1.2APPLICATIONAREA..................................................................................................................................7

1.3SYMBOLANDMEANINGON DATAPLATE...........................................................................................7

1.4ENVIRONMENTALCONDITIONS............................................................................................................8

2.INSTALLATION................................................................................................................................................9

2.1UPONRECEIPTANDCLAIMS..................................................................................................................9

2.2WORKAREA...............................................................................................................................................9

2.3

INS

ALL

TION

AND

USAGE

THE

MACHINE

................................................

.................................

2.3.1CONNECTTHEMACHINETOPOWERSUPPLY.........................................................................10

2.3.2CONNECT OUTPUT( )ANDOUTPUT(＋)................................................................................11

2.3.3 CONNECTTOTHEREGULATORANDAIRSUPPLY....................................................................11

3.USAGEINFORMATION...................................................................................................................................11

3.1THEPOWERSOURCEFRONTPANEL.........................................................................................................11

3.2ADJUSTINGTHEGASFLOW...................................................................................................................11

3.3 ARCSTARTINGFOR CUTTING PRESSES..........................................................................................11

3.4ADJUSTINGTHECUTTINGCURRENT..................................................................................................11

4.MAINTENANCEANDTROUBLESHOOTING...............................................................................................12

4.1PERIODICMAINTENANCE......................................................................................................................12

4.2NONPERIODICMAINTENANCE.............................................................................................................12

4.3

BASIC

TROUBLESHOOTING

.....................................................................................................

...

.....

...

-1-

SAFETY

RULES

ELECTRICALSHOCKCOULDBEFATAL

Installationproceduremustcomplywithnationalelectricitystandardsandotherrelevantregulations

and

ensure

that

installation

performed

qualified

persons.

●Weardry,hole-freeinsulatingglovesandbodyprotection.

●

not

touch

electrode

with

bare

hand.

not

wear

wet

damaged

gloves

and

bodyprotection.

●Donottouchliveelectricalparts.

●Nevertouchelectrodewhileincontactwithworkingsurface,groundoranother

electrodewhichisconnectedtoadifferentmachine.

●Protectyourselffromelectricshockbyinsulatingyourselffromworkandground.

Usenon-flammable,dryinsulatingmaterialifpossible,orusedryrubbermats,dry

wood

plywood,

other

dry

insulating

material

big

enough

cover

your

full

area

contact

with

the

work

ground,

and

watch

for

fire.

●Neverconnectupmorethan1electrodesorwirestothemachine.

●Turnoffthemachine,whennotinuse.

●Disconnectinputplugorpowerbeforeworkingonmachine.

●

Frequently

inspect

input

power

cord

for

damage

bare

wiring

repair

replace

cord

immediately

damaged.

●

sure

input

ground

wire

properly

connected

ground

terminal

disconnect

boxorreceptacle.

BREATHINGWELDINGFUMESCANBEHAZARDOUSTOYOURHEALTH

Inhalingfumesandgasesoveralongperiodoftime,generatedduringweldingisdangerousand

forbidden.

●Irritationoftheeyes,noseandthroataresymptomsofinadequateventilation.Take

immediatestepstoimproveventilation.Donotcontinueweldingif symptoms

persist.

●Installanaturalorforcedairventilationsystemintheworkarea.

●Installanadequateventilationsystemintheweldingandweldingarea,ifneeded

installasystemthatcanremovethefumeandvaporaccumulatedintheentirework

area,topreventpollutionuseadequatefiltrationindischarge.

●Intheeventofweldingandcuttinginsmall,confinedplaces,orweldinglead,

beryllium,cadmium,zinc,zinccoatedorpaintedmaterials;alsowearafreshair

suppliedrespiratorinadditiontotheabovementionedrules.

●Alwayshaveatrainedwatch-personnearby,whileworkinginsmallconfinedplaces.

Avoid

working

such

confined

places

possible.

●Ifgascylindersaregroupedinadifferentarea,makesurethatitisawell-ventilated

area.Whennotbeingused,turnoffthecylindervalve.

●Shieldinggassessuchasargonisdenserthanairandwhenbeingusedinconfined

places,canbeinhaledinplaceofair,andthisisdangerousforyourhealth.

●

not

perform

welding

operations

near

chlorinated

hydrocarbon

vapors

produced

degreasing

painting.

-2-

SAFETY

RULES

ARCRAYSCANBURNEYESANDSKIN

●Useadequateweldinghelmetwithcorrectshadeoffilter(4or13consideringTSEN

379)

protect

your

eyes

and

face.

●

Protect

open

parts

your

body

(arms,

neck

and

ears)

from

arc

rays

adequate

protective

clothing.

●

protect

others

arc

rays

and

hot

metals,

surround

the

working

area

with

flame

proof

curtains

which

are

higher

than

eye

level

and

put

warning

boards.

FLYINGMETALSCANINJUREEYES

●Weldingandcuttingcausesparksandflyingmetal.

●Topreventinjurieswearappropriatesafetyglasseswithsideshieldsevenunderyourweldinghelmet.

NOISECANDAMAGEHEARING

●Noisefromcertainindustrialprocessesorequipmentcandamagehearing.

●

Wear

approved

ear

protection

noise

level

high.

HOTPARTSCANCAUSESEVEREBURNS

●Donottouchhotparts.

●Allowcoolingtimebeforeservicing.

●

needed

hold

hot

parts,

use

appropriate

tool,

insulating

gloves

and

fireproof

clothes.

MOVINGPARTSCANCAUSEINJURY

●Keepawayfrommovingparts.

●Keepalldoors,panels,andguardsclosedandsecured.

●

Wear

shoes

with

metal

protection

over

the

fingers.

WORKINGINSMALLANDCONFINEDPLACESCANBEDANGEROUS

●Whileweldingandcuttinginsmall,confinedplaces,alwayshaveatrainedwatch-personnearby.

●Avoidworkinginsuchconfinedplaces.

-3-

SAFETY

RULES

WELDINGWIREMAYCAUSEINJURY

●

not

point

the

gun

toward

any

part

human

body,

other

persons

any

type

metal

when

unwinding

welding

wire.

●

While

extracting

the

wire

from

the

spool

hand,

may

spring

suddenly

and

injure

you

nearby

person,

protect

especially

your

eyes

and

face.

●

Make

sure

that

there

one

close.

WELDINGCANCAUSEFIREOREXPLOSION

●Neverweldnearflammablematerial.Itmaycausefireorexplosions.

●Beforestartingtoweldorcut,moveflammablesawayorprotectthemwith

flame-proofcovers.

●Donotweldorcutonandcutclosedtubesorpipes.

●

Before

welding

and

cutting

closed

containers,

open

and

clear

them

entirely.

Weldingoperationsonthesepartsmustbeperformedwiththeutmostcaution.

●Neverweldorcutcontainersorpipescontainingorwhichhavecontained

substances

that

could

give

rise

explosions.

Welding andcutting equipmentwarmsupsoneverpositionthemonflammable

surfaces.

●

Welding

and

cutting

sparks

can

cause

fire.

For

that

reason,

keep

extinguishing

means,suchasfireextinguishers,waterandsandeasyreach.

●Haveandmaintainsecurityvalves,regulatorsandothervalvesontheflammable,

explosiveandcompressedgascircuitsingoodconditionbyperiodicalcontrols,

usedforweldingandcuttingoperations.

FALLINGUNITCANCAUSEINJURY

Wrong

positioned

power

source

other

equipment

may

cause

serious

injury

persons

damage

objects.

●Whilere-positioningthepowersourcealwayscarrybyusingtheliftingeye.Neverpullcable,hoseorGun.

Always

carry

the

gas

cylinders

separately.

●

Before

carrying

the

welding

and

cutting

equipment,

disassemble

all

the

connections

between

and

separately

carry

the

small

ones

hand

grips

and

the

big

ones

lifting

eyes

using

appropriate

vehicles

forklifts.

●

nstall

your

machine

flat

platforms

having

maximum

slope

that

does

not

fall

over.

Install

well

ventilated,

non-confined

places

away

from

the

dust,

also

avoiding

the

risk

falling

caused

cables

and

hoses.

For

gas

cylinders

not

fall

over,

attach

the

mobile

machine

the

wall

with

chain.

●Ensurethatoperatorseasilyreachthecontrolsandconnectionsonthemachine.

-4-

SAFETY

RULES

MAINTENANCEMADEBYUNQUALIFIEDPERSONSMAYCAUSEINJURIES

●

Electrical

devices

should

not

repaired

unqualified

persons.

Improper

repairs

can

cause

serious

injuries

even

death

during

applications.

●

The

components

the

gas

circuit

works

under

pressure.

The

service

given

unqualified

persons

may

cause

explosions

and

operators

can

injured

seriously.

OVERUSECANCAUSEOVERHEATING

●Allowcoolingperiod;followrateddutycycle.

●Reducecurrentorreducedutycyclebeforestartingtoweldagain.

●Donotblockairflowtounit.

●

not

filter

airflow

unit

without

the

approval

manufacturer.

ARCWELDINGCANCAUSEINTERFERENCE

●

Electromagnetic

energy

arising

during

welding

and

cutting

operations

can

interfere

with

sensitive

electronic

equipment

such

microprocessors,

computers,

and

computer-driven

equipment

such

robots.

●Besureallequipmentintheweldingareaiselectromagneticallycompatible.

●

reduce

possible

interference,

keep

weld

cables

short

possible,

together,

and

down

low,

such

the

floor.

●

avoid

possible

EMC

damages,

locate

welding

operation

far

possible

(100

meters)

from

any

sensitive

electronic

equipment.

●Besurethisweldingmachineisinstalledandgroundedaccordingtothismanual.

●

interference

still

occurs,

the

user

must

take

extra

measures

such

moving

the

welding

and

cutting

machine,

using

shielded

cables,

using

line

filters,

shielding

the

work

area

STATIC(ESD)CANDAMAGEPCBOARDS

●Putongroundedwriststrapbeforehandlingboardsorparts.

●Useproperstatic-proofbagsandboxestostore,move,orshipPCboards.

PROTECTION

●

not

expose

the

welding

machine

rain,

protect

from

water

drops

and

vapour.

●

The

lifetime

determined

Ministry

Industry

and

Trade

years.

OBEYALLTHESAFETYRULESSTATEDINTHEMANUAL!

-5-

LIFETIME

ELECTROMAGNETIC

COMPATIBILITY

EMC

）

ELECTROMAGNETICEMISSION

●

All

electrical

equipment

generates

small

amounts

electromagnetic

emission

due

current

transferring

the

equipment.

Electrical

emission

may

transmitted

through

power

lines

radiated

through

space,

similar

radio

transmitter.

When

emissions

are

received

other

equipment,

electrical

interference

may

result

Electrical

emissions

may

affect

not

only

welding

machines

but

also

many

kinds

electrical

equipment

radio

and

reception,

numerical

controlled

machines,

telephone

systems,

computers

etc.

●

Welding

and

cutting

machines

have

been

designed

work

for

professional

and

industrial

use;

for

other

applications

contact

the

manufacturers.

●

The

user

responsible

for

installing

and

using

the

equipment

according

the

manufacturer

’

instructions.

electromagnetic

disturbances

are

detected

then

shall

the

responsibility

the

user

the

equipment

resolve

the

situation

with

the

technical

assistance

the

manufacturer.

some

cases

this

remedial

action

may

simple

earthing

the

welding

the

welding

circuit,

other

cases

could

involve

constructing

electromagnetic

screen

enclosing

the

power

source

and

the

work

complete

with

associated

input

filters.

all

cases

electromagnetic

disturbances

must

reduced

the

point

where

they

are

longer

troublesome.

●

The

circuit

may

not

earthed

for

safety

reasons.

Changing

the

earthing

arrangements

should

only

authorized

person

who

competent

assess

whether

the

changes

will

increase

the

risk

injury,

e.g.

allowing

parallel

welding

current

return

paths

which

may

damage

the

earth

circuits

other

equipment.

●Extraprecautionmayberequiredwhentheweldingpowersourceisusedinadomesticestablishment.

●SpecialmeasuresshallbetakentoachievecompliancewithweldingpowersourceincludingHFfrequencyfor

arcignitionandstabilizing;itmayberequireduseofshieldedcablesandinanycasetoresolvetheparticular

implementation(e.g.withrobot,computerandanyotherelectricalandelectronicequipmentconnectedto

weldingpowersource)tocallthetechnicalassistanceofthemanufacturer.

●EMCisClassAaccordingtoCISPRII.

ASSESMENTOFTHESURROUNDINGAREA

Beforeinstallingtheweldingandcuttingequipment,theusershallmakeanassessmentofpotential

electromagneticproblemsinthesurroundingarea.Thefollowingshallbetakenintoaccount-ifneeded

arrangetheworkinghoursthatnotcoincidewiththose.

●

Other

supply

cables,

control

cables,

signaling

and

telephone

cables;

above,

below

and

adjacent

the

welding

and

cutting

equipment,

●Radioandtelevisiontransmittersandreceivers,

●Computerandothercontrolequipment,

●Safetycriticalequipment,

●Presenceofheartbeatregulators,heartcells,hearingdevicesoretc.nearby,

●Equipmentusedforcalibrationormeasurement,

●

The

immunity

other

equipment

the

environment.

Theusershallensurethatotherequipmentbeingusedintheenvironmentiscompatible.Thismay

requireadditionalprotectionmeasures.

METHODSOFREDUCINGEMISSIONS

●Cuttingequipmentshouldbeconnectedtothemainssupplyaccordingtothemanufacturer’srecommendations.

Ourweldingmachinesarefilteredagainstemissionaccordingtostandards.Ifinterferencestilloccurs,itmay

benecessarytotakeadditionalprecautionssuchasfilteringofthemainssupply.

●

The

equipment

should

routinely

maintained

according

the

manufacturer

’

recommendations.

The

welding

and

cutting

equipment

should

not

modified

without

the

approval

manufacturer.

●

The

welding

and

cutting

cables

should

kept

short

possible

and

should

positioned

together,

running

the

floor

level.

Power

cables

and

signal

cables

should

kept

separately.

●Keepingcablesintheshapeof-8-andtapingtogetherreduceemission.

●

Connect

earth

clamp

work

piece

the

weld

possible.

But

the

user

should

control

whether

this

situation

damage

people

and

equipment

not.

-6-

TECHNICAL

INFORM

TION

1.TECHNICALINFORMATIONS

1.1GENERALEXPLANATIONS

●Thiscuttingmachineismanufacturedwithadvancedinvertertechnology.Withhigh-powercomponentIGBTand

byadoptingPWMtechnology.TheinverterconverttheDCvoltage,whichisrectifiedfrominputACvoltage,to

high20KHzfrequencyACvoltage.Asaconsequence,thevoltageistransformedandrectified.Therefore,itresults

themuchmoresmall-sizedofthepowersourceandlighterinweightoftheinvertercuttingmachine,whichratesthe

performanceofcuttingby30%.Thehighfrequencyoscillation,whichenablestheoutputofthehighfrequencyDC,

isemployedinthearc-startingsystem.Thefeaturesofthisproductareasfollowing:stablethecuttingcurrent

output,reliable,completelyportable,efficientandlownoisegeneratedwhilecuttingisperformed.

●CuttingProcessisavailablefor LGK-80S.

●Duringtheperformanceofcutting,thiscuttingequipmentisfeaturedwiththestabilityofcurrentoutputandthat

thecuttingcurrentoutputdoesnotvarywithvariationofthelengthofarc.

●Guaranteeofmaintenanceformainengineisoneyear,excludingotherspareparts.

●Duringtheguaranteemaintenanceperiod,allmaintenanceisfreeofcharge,excludingthedeliberateddamageto

thiscuttingequipment.

●Onlyqualifiedtechnicianareauthorizedtocarryouttherepairstaskofthiscuttingmachineincaseofmachine

fault.

●THEMAINTECHNICALSPECIFICATIONSorDATAPLATEonthecuttingmachine.

1.2APPLICATIONAREA

1.3SYMBOLANDMEANINGONDATAPLATE

threephaseinputACpower supply,RectifierDCcurrentor voltage output

Output Characteristicsofthecuttingpowersourceisconstantcurrent(CC)outputfor LGK-80S.

Norm:Applicationstandards,forexample,EN60974-1orIEC60974-1.

-7-

●LGK-80S cuttingmachinesare threephase,

380V,50Hz，constantcurrent(CC)outputpower

sourcesespeciallydesignedfortheairplasmaarc

cutting.

●Allthecontrolsandadjustmentknobofthecutting

powersourceareplacedontothefrontpanelforeasy

operation.

●CuttingCable,the torch, EarthCableand gas

hose canbe easyconnectedto thepowersource.

●Outputcurrentofthe LGK-80S cuttingmachine

canbeadjustedbyacuttingcurrentadjustment

knob.

●LGK-80S isverygoodselectionformedium

thicknessmetals(upto20mm)cutting.It isalsoa

verygoodchoiceforstainlesssteelandmetalscutting.

Thismachineshouldbeselectedforhighdutycycle

cuttingapplications.

TECHNICAL

INFORM

TION

U1：RatedACinputvoltageofthecuttingpowersource，3~，380V，etc.

I1max：Max.inputcurrent.

I1eff：Max.effectiveinputcurrent.

50HZ:RatedfrequencyofsinglephaseACpowersupply.

X: Rated dutycycle.Itistheratiobetweentheloaddurationtimeandthefullcycletime.

Note1: Thisratioisbetween0~100%.

Note2: Forthisstandard,onefullcycletimeis10min.Forexample,iftherateis60%,theloadedtimeshallbe6

minutesandresttimeshallbe4minutes.

Dutycycleisbasedonatenminuteperiod.Thismeansthatthearcmaybedrawnfortwominutesoutof

eachtenminuteperiodwithoutanydangerofoverheating.Ifitisusedmorethantwominutesduringseveral

successivetenminutesperiods,itmayoverheat.

U0：No-loadvoltage

Itistheopen-circuitoutput voltageofthecuttingpowersource.

I2：outputcurrentorcuttingcurrent

U2：Outputloadvoltageorcuttingvoltage. Theratedloadedoutputvoltage U2=80+0.04I2forPlasmaCutting.

A/V A/V：Theadjustablerangeofcurrentanditscorrespondingloadvoltage.

S1:TheratedInputPower,KVA

IP：Protectiongrade.Forexample,IP21S,approvingthecuttingmachineassuitableforuseindoors;IP23S,.

approvingthecuttingmachineassuitableforuseoutdoorsintherain.

Suitableforhazardousenvironments.

Class:H Insulationgrade.

1.4Environmentalconditions

Thepowersourceshallbecapableofdeliveringtheirratedoutputwhenthefollowingenvironmental

conditionsprevail:

e)baseoftheweldingpowersourceinclinedupto10°

INS

ALL

TION

2.INSTALLATION

2.1UPONRECEIPTANDCLAIMS

2.2WORKAREA

2.3INSTALLATIONANDUSAGEOFTHEMACHINE

Onlyqualifiedpersonsshouldinstall,useorservicethisequipment.Protectyourselfandothers

frompossibleseriousinjuryordeath.

WARNING: Donotoperatewithcoversremoved.Disconnectinputpowerbeforeservicing.

Donottouchelectricallyliveparts.

●Beforestartingtheinstallation,checkwiththepowercompanytobesureyourpowersupplyisadequate

forthevoltage,amperes,phase,andfrequencyspecifiedonthecuttingmachinenameplate,Alsobesurethe

●Besurethatyouhavereceivedalltheitemsthatyou

haveordered.Incaseofanyitemsaremissingordamaged,

contactyoursupplierimmediately.

●Besurethatnoneofthefollowing4items are

missing

the

box.

Power Source

EarthClampandCable

CuttingTorch

UserManual

●Make sure that your line voltage is

threePhase,380V,50Hz andyouhaveaneutraland

earthlinepresentatyourworkplace.

●Inordertocooldownthemachineandhave

anefficientwork,keepthemachineatleast30

cmawayfromthesurroundingobjects.Donot

placeanyheatsource,asoven,tofrontsideof

themachinewherethecoolingair istakenfrom.

●Donotplacethemachineinsmalland narrow

places.Bewareofexcessivedustanddirt.

●Keepyourmachineawayfromwetand humid

places.

●Donotoperatethemachineunderdirectsunlight,rain

andwind.Machinesshouldbeoperatedon lower

capacities whenambientairtemperatureexceeds40ºC.

●Pleaseuseasuitableexhaustsystemforgases

andcuttingvapour.Usebreathingapparatusifthereisa

riskofinhalinganyweldingorcuttingvapour.

●Avoidcuttingwhereair-flowishigh.Protect

thecuttingareawithcurtainsormobilescreens.

●Transportandplacethedeviceonfirmand

levelgroundsothatitmaynotfallover.The

maximumpermissibleangleofinclination

fortransportandassemblyis10°.

●Thismachineisprotectedelectronically

againstoverloading.Donotusestrongerfuses

thanthosestatedonthetypeplateofthe

device.

●Ensurethattheearthclamphasgoodand

directcontactnearthecuttinglocation.Do

notdirectcuttingcurrentoverchains,ball

bearings,steelcables,protectionconductors

etc.,Otherwisetheymaymelt.

●Ensurethatoperatorscaneasilyreachthe

machine

controls

and

equipment

connections.

●Useliftingeyesforliftingthemachine.

Donotliftthemachinebyusingafork-liftora

similar vehicle.

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