2
Installation:
• Openthedoorbyunscrewingthedoorknob.
• Mountthestarterenclosureverticallyonarigidsurface
freefromvibration.ReferFig.5.
• RemovetherubberGrommetsforincomingandoutgoing
cableconnections.(Fig.2).
• Connectincomingandoutgoingcablesasfollows:
(Fig.2)
– SelectcorrectsizeofcablefromTable1.
– Removeapprox.lengthofinsulationasperfollowing
table:
Lengthofinsulation
removal(mm)
Cucablesize
(mm2)
10 10
64and2.5
5 1.5
– Passthecablethroughpropercableglandtoavoid
ingressofmaterial.
– Connecttheincomingsupplycablestoterminal
blockTB1(Fig.2)andtightenthescrewsrmly(ref.
tighteningtorquefromTable2).
NOTE:LMRAissetinManualmode(Factorysetting)
• Settheoverloadrelayscale(Fig.2)usingproper
screwdriverasfollows:
– Settheoverloadrelaytoratedcurrentmentionedon
motornameplate.
– PressgreenbuttonofthecontactblockCB1(Fig.2)
tostartthemotorandwaittillitreachestonormal
speed.Reducetheoverloadrelaysettingstillittrips.
– Settheoverloadrelayatslightlyhighervalue.
– Allowaresettimeappr.4min.andresettheoverload
relaymanually.
– Restartthemotor.Iftherelaydoesnottrip,consider
theoverloadrelayasproperlyset.
Ifittrips,setitatlittlehighervalueandrecheck.
– Presstheredknob(Fig.2)ontheoverloadrelayto
stopthemotor.
– Fixthedoorbyscrewingtheknob.
Replacement of coilFig. 3: Contactor – Relay connection
Operation:
• Ensurethedoorisclosed.
– RotatetheLatchawayfromOFFpushbutton.
– CheckthestatusofamberLED.EnsurethatamberLED
iscontinuouslyONandthenonlyproceed.
– Switch‘ON’thestarterbypressingthegreenpush
button(marked‘I’)(Fig.1)onstarterdoor.
– ToSwitch‘OFF’thestarterpressredpushbutton
(marked‘O’)(Fig.1)onthestarterdoor.
• ResetOperation
– Iftheoverloadrelaytrips,Resetmanually.
(Allowaresettimeofapprox.4min.)
Maintenance:
• SwitchoffthestarterandputLatchontheOFFpush
button,(marked‘O’).Disconnect the main supply by
switching OFF main switch before maintenance.
• Keeptheinteriordustfree.
• Re-tightentheterminalscrewsfromtimetotime.
• Nomaintenanceisneededforoverloadrelay.
Pleasedonotopentheoverloadrelay.
• Replacethecontactors/contactsofthecontactorsifthey
wereseverelypittedorwhenonly40%oftheoriginal
contacttipremains.
(Contactsreplacementpossibleonlyfor3TS33,3TS34,
3TS35,3TS36contactors).
• ReplacementofoverloadRelay
I. DisconnectthecablebetweenRelayterminalsT1,T2,
T3andOutgoingTerminalBlockTB2.
II. Loosentheoutgoingterminalsscrewsofcontactor
(Fig.3).
III. Disengagetherelayterminals&hookfromcontactor.
IV. Taketheoverloadrelayofsamerange.
V. Connect&tightentherelayterminals(L1,L2,L3to
thecontactorterminals(T1,T2,T3).
VI. Ensurethattherelayhook(Fig.3)isengagedinthe
slotofthecontactorandslidetherelayinwardstill
thecoverisushwithcontactorribs.
VII.ReconnectthedisconnectedTerminalblock(TB2)
wirestorelayandcheckthecorrectnessofthestarter
wiringbyreferringtothewiringdiagram.
Hookonrelayfor
engagement
Contactor
outgoingterminals
