Nederman HV Control Panel EX Series - Function; Main Parts

HV Control PanelEN
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4.2 Funcon
ThefunconoftheHVControlPanelEXistocontrolcleaning,andifapplicable,emptying
ofNedermanFlexFilterandpreseparators.
ItstartsaVACorRBUusingtheStar/Delta(Y/D)methodinordertoreducestarngmotor
current.Duringthestartsequence,thestartupvalveinthevacuumunitreducesthemotor
load.WheninDelta(D)mode,thevalveisacvatedandtheunitcansupplythesystem.
Therearethreecontrolmodes:O,Standby,andRunning.
Thecontrolpanelhasalsoaweekmerandanovermefuncon.
APilotsignal(PS)isusedininstallaonswithautomacstart/stopcontrolledbymicro
switchesonworksites(AS-set).
Aerpoweristurnedontothesystem,thecontrolpanelisnormallyinOmodeandcan
besettoStandbymodeeitherbypressingthegreenStartbuon,remotely,orbythe
Weekmer.
ThecontrolpanelentersStandbymodeandwaitsforapilotsignal.Whenthepilotsignal
becomesacve,thecontrolpanelgoesintoRunningmodeandtheVAC/RBUstarts.Atest
startcanbedonebypressingtheTest-startbuon.
WhenthePilotSignalbecomesdeacvated,theSSRstopdelaybeginstocountdown,the
HVControlPanelEXgoesintoStandbymode,andtheVAC/RBUstops.
WhenRBUisselected,theDIRidlingdelayalsostartstocountdown,thestartupvalve
opensandtheRBUgoesintoIdlingmode.
Toreducetheriskofdustaccumulaonintheductsystem,ushvalvescanbeinstalledin
theupstreamendofducts.Theushingfunconopensthesevalvesinasequence.
4.3 Main parts
Seethegurebelow.
A. Emergencystopbuon.Usedtostopthesystemincasethereisanemergency.
B. Mainswitch.TurnonpowertotheHVControlPanelEXcabinet.
C. Lock.
D. Controlpanel.
E. Warninglamp.
F. Nameplate.Thisisneededforserviceandidencaon.
G. Serialnumberlabel,upperleinsidethecabinet.