VTK‐VS‐BA‐004e‐B|UserManualMDS3200A | Initial Operation
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5.3.2 Installationofthe MDV3200AValve
PreferablymountthevalveonanautomaticXYZtableorinasimilar
device(XYZpositioningsystem).StableseatatthefixtureofZaxisis
imperative,asthevalveshouldnotbecomelooseduringthedis‐
pensingprocess.Forthispurpose,twoM4hexscrewshavetobein‐
sertedtoadepthof4mm,throughtheboringslocatedatthenar‐
rowsideofthevalve.Theirdistancetothecenteramountsto45
mm.Toimproveaccuracywhenpositioningthevalveonarecepta‐
cle,additionallyusethealignmentboringandthelonghole,located
onthe
narrowsideofthevalveaswell.
IMPORTANT!(Corrosion)
Inordertopreventcorrosion,allpartsusedinconnectionwiththevalve(screws,fix‐
ingplatesetc.)shouldconsistofstainlesssteel,nonferrousmetalsorgalvanizedsteel.
5.3.3 Connectionofair‐coolingforMDV 3200A‐ACmodels
Assoonastheinstallationofthevalveiscomplete,connectionsforair‐
coolinghavetobeattached(withhosediametersof3and/or6mm,ac‐
cordingtotheparticularmodel).
Oneendofthehosehastobeinsertedtotheairinletofthevalve(1),
(the
retainingsleeveautomaticallylatches);theotheroneisconnected
totheairsupply.
Thesecondconnector(2),illustratedabove,representstheoutlet,evacuatingtheheated
compressedairfromthevalve.Whenrunningthehosetotheairsupply,takecarenotto
impairfunctionsofthesystem,orto
disturboperatorsduringtheirwork.
IMPORTANTNOTE!(qualityofcompressedair)
QualityofcompressedairshouldcomplywithDINISO8573‐1.
ThepneumaticsupplyusedforcoolingoftheMDV3200A‐ACshouldbefreeoffinedustand
condensate,andcorrespondtoclasses1,3,2accordingto
DIN/ISO8573‐1.
Solidparticles:0,1µmmax.,admissibleconcentration0,1mg/m³=Qualityclass1
Watercontent:max.pressuredewpoint‐20°C,admissibledensity:0,88g/m³=Qualityclass3
Residualoil:0,1mg/m³max.=Qualityclass2
5.3.4 WiringoftheMDS3200A
ThevalveMDV3200AisconnectedtothecontrolunitMDC3200Abymeansofafour‐pin
actuator(red)and5pinsensorplug(yellow).Theplugsareprotectedbycodingagainstin‐
terchangingbymistake.
DANGER!(switchoffbeforeremovingplug)
Neverattempttoattachorremoveone
oftheseplugs,whenthesystemisconnected
tomains.Forthisreason,beforeseparatingthevalvefromthecontrolunit,thewhole
systemhastobeswitchedOFFandtobedisconnectedfrompowersupply.
CAUTION!(Planyourcableconnectionscarefully)
Makesuretoplanyourcableruncarefully,
whenconsideringthewiring,especiallyifthe
valveisincludedintoamorecomplexsystem.Yourcablescannothangtooloose,sincethen
theymightstarttoswingandgetdamaged,becauseofthevibrationsofthevalve.Onthe
otherhandyoumightneedenoughlengthinyourcables,if
theholderismovedinthez‐axis.