User Manual For ASD Starter PDF
User Manual For ASD Starter PDF
User Manual For ASD Starter PDF
Qualityfeaturesforconvenientoperation:
FullyAutomatic:ThemotorstartsinStarwhenthegreenSTARTbuttonispressed.ChangeovertoDELTAisautomaticafter10to20secs,controlled
byanadjustableelectronictimerincorporatedinthestarter.
Construction:
ASDshaveoneIncomingmainswitch(TPN)withHRCfusesfollowedbythreecontrolfuses&sixindicatinglamps:ThreelampsRed,Yellow,Bluefor
threephases,OneAmberforTrip&OneAmberforOverloadindication.TherearethreepowercontactorsMAIN,STAR,DELTA.Thethermaloverload
relayissuitablywiredandinterconnectedwiththeMAINcontactor.
Overloadprotection:
Thetriplepolebimetallicthermaloverloadrelayisofhandresettype.Itunmistakableindicatedoverload.Atemperaturecompensationdevice
preventstherelayfrombeingaffectedbyvariationinambienttemperature.Overloadrelaysetting
Phasefailure,Phaseunbalanceprotection:
TheVSPD2phasefailurerelayactsinPhaseFailure,Unbalance,PhaseSequence.IthasAuto/Manual/RemoteResetandanAdjustableUnbalance
Setting,2COoutputRelay.Itprotectsthemotorincaseofphasefailure,phaseunbalance.
PushButton:
IlluminatedSTART,STOPpushbuttonaremountedonthefrontofthestarterpanel.
Earthing:
Separateearthbusbarisprovidedinthepanel.
DosandDontsforStarterPanel:
Dos:
1. Beforeinstallationcheckforanyloosenessinthewiredcomponentsofthepanel.
2. Checkthesupplyvoltagefromwheretheincomingsupplytothestarteristobegiven.Thesupplyvoltagemustnotfallbelow415+10%V.
3. AlwaysoperatethehandleofthemainswitchinOneGo.
4. IfthetimeofSTARtoDELTAconversionhappensquicklythenadjustthetimesettingofthetimerto10seconds.
5. Ifthemotordoesntstartatthefirsttimetheninterchangethewiringatterminals2&3ofVSPD2.
6. Alwaysconnecttheneutralproperlywitheverystarterpanel.
7. AlwaysearththebodyofthestarterpanelatthebothsidesindicatedforEarthing.
8. Ifthemotortripsagain&againthendisconnectthemotor&startthestarterwithoutload,ifitwithstandsindeltathencheckthemotorfor
possibleoverloading.
Donts:
1. Neveroperatethestarterpanelbyopeningthefrontdoor.
2. DontchangethewiringofthepanelwithoutconsultingwithElectricalDepartmentoffactory.
TROUBLESHOOTING
1)MotorworksinStar.HoweveritdoesnotworkproperlyIn Checkifonlythreewiresarebeingterminatedinterminalbox
Deltaandrefusestotakeload. ofmotor.Sixwiresshouldbeconnectedtostarter.Ifshorting
linksarepresenttheyshouldberemoved.
2)MotorstartswithdifficultyinStarortripswhenadditional ReducetimedelayfromStartoDeltaincaseitiskeptvery
loadispresent, long.
3)MotorworksinStar.HoweverstopswhenDeltaconnection Possiblyduetolowsystem voltage.
comeson.
3)Eventhoughallsixwireshavebeenconnected,motorstops Deltaconnectionfrommotorisimproper
wheninDelta,
4)MotorstopswheninDelta,startertripsandfuseblows. Lowsystemvoltage.Star/Deltaconnectioninstarterwrongly
connected.
Publicationno.T264.01
CONTROLFUSES
FUSESWITCHUNIT
PHASEFAILURERELAYVSPD2
I/CCABLETOBE
TERMINATEDHERE
WITHNEUTRAL 3NOSPOWERCONTACTOR
CONNECTION
MOTORO/G
TERMINAL THERMALOVERLOADRELAY
FULLYAUTOMATICSTARDELTASTARTER INSIDEVIEW