Siemens TE7291-0A Series Leitfaden

Installation:

• Removethefrontcover.

• Mountthestarteronaverticalwall/platefreefrom

vibrationswithpropernutsandbolts.ReferFig.8for

mountingdimensionsandFig.4forpermissiblemounting

position.

• Removetherubbergrommetsfortheincomingand

outgoingcableconnections.

• Connectincomingandoutgoingcablesasfollows(Refer

Fig.2&3):

 – Usepropercableglandstoensuredustproong.For

conduitentryusepackedwashers.

 – SelectcorrectsizeofcablesfromTable-A

 – Connectlineandmotorleadsexactlyasperwiring

diagrampastedinsidethecoverofthestarter.

 – Terminatetheincomingcableonterminalblock.

Automatic Star Delta

Starter 3TE7291-0A

For dependable service, it is of utmost

importance that instructions given below are

followed for selection, inspection, installation,

commissioning, operation and maintenance.

ASD-11 Starter (Self reset)

Selection of Starter

• ReferTableAforrecommendedselectionof3TE72

starters.

 TableA:kW/HPRating,thermaloverloadrelayrange&

fuserating,CoilVoltage,Maximumfullloadcurrentfor

differenttypesofmotors.

1. ONPushButton

2. OFFPushButton

3. EarthingScrews

4. RubberGrommet(NotvisibleinFig1.)

5. NamePlate

6. IncomingCable

7. OutgoingCable

8. CoverFixingScrews

9. MechanicalLatch(OFFpushbutton)tobeusedfor

preventingundesiredONoperationofStarter

Fig. 1: ASD-11 Starter

 – ConnectoutgoingcablesontheRelay(K1)terminals

andDeltacontactor(Q3)terminals.

 Tighteningtorque(N-cm):

kWRatings IncomingTerminals OutgoingTerminals

7.5–11 80–140 80–140

15–18.5 150–210 100–150

• Connecttheearthingconductortoterminalsmarked

(earth)onthestarterbody with torque 80 to 140 N-cm.

TheStarterisnowreadyforcommissioning.

• Initiallysettheoverloadrelayto0.58timestherated

motorcurrent.

• Setthetimerdialtothenearestvalueofstartingtime

availableonmotornameplate

• Ifitisnotavailablethensetthedialtoapproximately

6-8secs.

Installation, Operation & Maintenance

Instructions

Pleasereadandunderstandtheseinstructionsbefore

installating,operating,ormaintainingtheequipment.Keepfor

futurereference

Danger

Hazardousvoltagecancausedeathorseriousinjury.Disconnect

powerbeforeworkingonequipment.

Warning

Automatic Motor Restart.

Can cause death, serious injury or property damage.

Donotuseautomaticresetmodewhenunexpectedautomatic

restartofthemotorcancauseinjurytopersonsordamageto

equipment.

Reliablefunctioningoftheequipmentisonlyensuredwith

certiedcomponents.Commissioningandmaintenanceby

qualiedpersonnelonly.

NOTICE

ThisproducthasbeendesignedforenvironmentA.Useofthisproduct

inenvironmentBmaycauseunwantedelectromagneticdisturbancesin

whichcasetheusermayrequiretotakeadequatemitigationmeasures.

IS/IEC 60947-4-1

 Forexactsettingoftimerandoverloadrelay,followthe

instructiongivenbelow:

Before switching ON recheck all external connections

• Star-DeltaTimersettingforASD-11:

 – Firststartthemotorbypressingthe‘ON’buttonshown

inFig.1

 – Measurethetimetakenbythemotortonearlyreach

ratedspeedorsteadystatecurrentcondition(indicated

whenthemotorreachesasteadyhum).

 – Stopthemotor.Setthetimertothismeasuredvalueby

rotatingthedialshowninFig.5.

• Overloadrelaysetting:

 – Forcloserprotectionsettheoverloadrelaytoactual

phasecurrentasmeasuredbyanammeter.

 – OverloadrelaycharacteristicsshowninFig.6canbe

usedtoestimatetheaveragetrippingtimeatdifferent

multiplesofsetcurrent.

 – Intheabsenceofanammeter,usetheproceduregiven

below:

Fig. 2 & 3: Cable Connections

Fig. 4: Maximum permissible mounting position from vertical plane Fig. 5: Timer Adjustment

Commissioning: Read the note carefully before commissioning.

 – Startthemotorandletitrunfor30mins.Then

graduallyreducetherelaysettingstillittrips.Setthe

relayataslightlyhighervaluethanthissetting.

 – Restartthemotoraftersometime.Iftherelaydoesnot

tripthenconsiderittobeproperlyset.Iftherelaytrips,

setatalittlehighervaluethanbeforeandrecheck.

• Fixthefrontcover with Torque of 100 to 130 N-cm.

Caution

• Duringcommissioningormaintenancealwaysensure

that the main supply is disconnected by switching off

the main switch.

• InthecaseofASDstartersundernocircumstances

should the relay be set higher than the phase current

i.e. 0.58 times the rated current on the motor name

plate.

• Iftherelaytripsevenwhensetatratedmotorcurrent,

the suitability of the starter/relay for the particular

application should be checked with the nearest

Siemensofce.

Dial

Operating Characteristics:

Thegivencharacteristics(Fig.6)areaveragevaluesofall

rangesandsizesofbimetalrelaysandaremainlyintended

toindicatetheinversetimecurrentcharacteristicsofthe

Operation:

• RotatetheLatchawayfromOFFpushbutton

• Forstartingthemotor,pressGreenpushbuttonmarked‘I’

(Fig.1)

• ForstoppingthemotorpressRedpushbuttonmarked‘O’

(Fig.1)

• Thisisin‘Self-Reset’mode.Inthismodeeven,ifthe

relaytripsonoverload,itwillbeautomaticallyresetina

maximumof4minutes.Themotorcanberestartedonly

aftertherelayisreset.

Maintenance:

• Switchoffthestarteranddisconnectthemainsupplyby

switchingthemainswitchbeforedoinganymaintenance.

• Keeptheinteriordustfree.

• Re-tightentheterminalscrewsfromtimetotime.

• Nomaintenanceisneededforoverloadrelay.Pleasedo

notopentherelay.

• Replacethecontactors/contactsofthecontactorsifthey

wereseverelypittedorwhenonly40%oftheoriginal

contacttipsremains.

Fig. 6: Operating characteristics of 3UW51/52 relays

same.Thetrippingtimesofthesame.Thetrippingtimes

shownareforrelaysstartingfromthecoldstate.Atoperating

temperatures(heatedatratedcurrent)thesearereducedto

about25%ofthevalueobtainedfromthecharacteristics.

• ReplacementofOverloadRelay(ReferFig.7):

–Removal

 1. Disconnectthewiresconnectedtotherelayterminals.

 2. Slightlyloosentheoutgoingterminalscrewsoftheline

contactor.

 3. FollowinstructionsgiveninFig.7forremovalofrelay.

 – Re-xing

 1. Select&taketheoverloadrelayofsamerange.

 2. Connecttherelayterminals(L1,L2,L3)to(T1,T2,T3)

ofQ1Linecontactor.

 3. ReferFig.7fordetails.

Careshouldbetakentoxtherelayterminals&relay

to contactor in the exact position shown in Fig. 7

 4. Ensurethatrelayhookisengagedatcontactorhousing

slotatbase.

 5. Tightenthecontactorterminalscrews.

 6. Re-connectthedisconnectedwiresandcheck

connectionsbyreferringtothewiringdiagram.

Table A: Automatic Star - Delta Starter Type Ref: 3TE7291-0A

Motor

Output

415V

(kW/HP)

I()

4Pole

Squirrelcage

motor

ContactorLine ContactorDelta ContactorStar Recommended

Overloadrelayat50ºC

Recommended

FuseSwitch

RecommendedCu

Cablesize

(mm2)

Line

cur-

rent

(A)

Phase

cur-

rent

(A)

TypeReference Type-Code

Relay

Range

(A)

Type

Backup

HRC

fuse

rating(A)

Incoming

(from

supply)

Outgoing

(tomotor)

7.5/10 16 9.2 3TS3210-0A*08K 3TS3201-0A*08K 3TS3210-0A*08K 3UW5102-1J 6.3-10 3KL812 20 2.5 1.5

9.3/12.5 19.5 11.2 3TS3210-0A*08K 3TS3201-0A*08K 3TS3210-0A*08K 3UW5102-1K 8-12.5 3KL812 25 4 2.5

11/15 23 13.2 3TS3210-0A*08K 3TS3201-0A*08K 3TS3210-0A*08K 3UW5102-2A 10-16 3KL812 25 4 2.5

15/20 32 18.4 3TS3300-0A*08K 3TS3300-0A*08K 3TS3210-0A*08K 3UW5202-2B 12.5-20 3KL812 50 10 4

18.5/25 38.5 22.2 3TS3300-0A*08K 3TS3300-0A*08K 3TS3210-0A*08K 3UW5202-2C 16-25 3KL812 50 10 4

* Code for operating coil voltage 50 Hz (Z6 for 200-400V, R0 for 415V)

Other Tables:

Star-Delta Timer:

AC Input Voltage MLFB

230V-400V

380V-440V

3RP1576-1NP208K

3RP1576-1NM208K

Other Tables:

Motor Output at

415V

Type4)

kW HP (ASD Starter)

7.5 10 3TE72910AW74

9.3 12.5 3TE72910A.75

11 15 3TE72910A.77

15 20 3TE72910A.78

18.5 25 3TE72910A.79

4)Entercodeforoperatingcoilvoltage,50Hz(Bfor200-400V,Wfor415V)

Spares:

Sr.

No. Description Order No.

1Contactor3TS3210.. ReferTableA

2 Contactor3TS3201.. ReferTableA

3 Contactor3TS3300.. ReferTableA

4 Relay3UW51.. ReferTableA

5 Relay3UW52.. ReferTableA

6 Coilfor200-400V 3TY7403-0AZ6

7 Coilfor415V 3TY7403-0AR0

8 1NOContactBlock 3SB5420-0B

9AuxBlock1NO 3TX4010-2A

10 AuxBlock1NC 3TX4001-2A

10 ‘ON’&‘OFF’PushButton #

#–contactsales

Replacement of coilFig. 7: Contactor – Relay Connection

Hookonrelayfor

engagement

Contactor

outgoingterminals

Notes

Dimensional Drawing

AutomaticStarDeltaStarter

Siemens Ltd.

OrderNo.A5E41708219000A-AD

Productdevelopmentisacontinuousprocess.Consequently

thedataindicatedinthisLeaetissubjecttochangewithout

priornotice.Forlatestissuecontactoursalesofces.

SACHINENTERPRISE

Disposal

Siemensproductsareenvironmentfriendly,which

predominantlyconsistofrecyclablematerials.

Fordisposalswerecommenddisassemblingandseparation

intofollowingmaterials:

METALS:SegregateintoFerroustypesforrecyclingthrough

authorizeddealer.

PLASTICS:Segregateaspermaterialtypeforrecycling

throughauthorizeddealer.Becauseofthelonglifetimeof

SiemensProductsthedisposalguidelinesmaybereplaced

byothernationalregulationswhentakingtheproductout

ofservice.Thelocalcustomercareserviceisavailableatany

timetoanswerdisposal-relatedquestions.

Formoreinformationcalluson18002091800 Email:[email protected]

MountingDimensions259x219andholeDia7.0mm

Fig. 8: Dimensional Details for 3TE72 91-0A**

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