XINDA WYJ140 Series User manual

OperatingManual
WYJ140 Series
Synchronous Permanent Magnet Type Gearless Traction Machine
NINGBO XINDAELEVATORACCESSORIES FACTORY
Version Ae0
2010.01

Contents
1Precautionfor the Machine............................................................................... 误！未定义书签。
1.1Explanationofsymbolsused................................................................................................3
1.2Basicsafetyrequirements..................................................................................................3
2Product Descriptions .......................................................................................................................4
2.1Product Construction.............................................................................................................4
2.2Product designationmethod.................................................................................................5
2.3Maintechnicalparametersofthe product.............................................................................6
2.3.1Tractiontechnicalparametersofthemachine............................................................6
2.3.2Technicalparametersofdrivemotor for the traction machine...................................6
2.3.3Technicalparametersofthe brake..............................................................................6
2.4Ambient conditionsforoperation...........................................................................................6
2.5Contentsofthe product package..........................................................................................6
3Handlingand Storageof Product....................................................................................................7
3.1Storage..................................................................................................................................7
3.2Lifting.....................................................................................................................................7
4Installations......................................................................................................................................7
4.1Preparations prior tothe machineinstallation.......................................................................7
4.2Preparations prior toelectricalconnections..........................................................................8
4.3Electricalconnection.............................................................................................................9
4.3.1Connection ofterminalbox ofthe traction machine...................................................9
4.3.2connectionofterminalbox ofbrake electromagnet..................................................10
4.3.3Encoder connection..................................................................................................10
5CommissioningofTraction Machine...........................................................................................10
6CommissioningofBrake Mechanism......................................................................................... 11
6.1Description ofBrakeMechanism........................................................................................ 11
6.2Commissioning ofbrake mechanism..................................................................................12
6.2.1Adjustment ofair gapamong friction disk, armatureand electromagnet core.......12
6.2.2Adjustment ofbraking torque.................................................................................13
7Emergent Rescue.......................................................................................................................13
8Protection andMaintenance.......................................................................................................13
8.1Routine inspection and maintenance ofthe product........................................................13
8.2Inspection andMaintenance ofBrake..............................................................................14
8.2.1Cleaningthe carbideon the friction plateand the brakesurface ofbrakes.............14
8.2.2 Commonfaultsand troubleshooting ofbrakemechanism.......................................15
8.3Replacement oftraction sheave.......................................................................................15
9Sparepartslist ............................................................................................................................16
10 Qualitywarranty........................................................................................................................16
11Revision note.............................................................................................................................16

1Precautionsfor useofthemachine
Thankyou verymuch forpurchasing ourproducts.Inordertoensurethatthe elevatorcan run
withhigh safety,reliabilityand quality,the elevatoroperatorsshouldbe trainedand becomefamiliar
withthe installation,commissioningand operation ofthisproduct, and knowelevatorconstruction
verywell.Thisproduct shouldbe installed, tested, accepted, used and maintained according tothis
manualand GB7588-2003 SafetyRules fortheManufacturing and Installation ofElectric
Lifts”(egvEN81-1:1998”Safetyrules forthe construction and installation ofelectriclifts”)as well.The
manufacturerwill nottakeanyresponsibilityforanypersonalinjuryorequipmentdamagecaused
due toimproperhandlingorviolating above-mentioned manualand safetyrules during the
installation, commissioning, acceptance, use and maintenanceofthe product. Toguaranteecorrect
installationand operation ofthe motor, please read thismanualcarefullyat first.
1.1 Explanation ofsymbolsused
4types ofsymbolsareused inthisoperatingmanualas follows:
Adequatesafetymeasuresmustbe taken,otherwisetherewillpossiblybe significant
personalinjury(even death) or seriousequipment damages
It isnecessarytotake adequatepreventiveactions,otherwise personalinjury(but not
death)orequipmentdamages maybe caused.However,serious personalinjury
(even death)orserious equipmentdamagesmayalso be causedwhen external
conditions havechangedbut preventiveactionsarenot changed accordingly.
Paymoreattention totheinspectionandoperation,otherwise personalinjuryor
equipment damages maybe caused.
Prompt for relativeknowledge.
1.2 Basicsafetyrequirements
Gearless tractionmachine mustbe installed inalockableroom,sothatonly
specially-trainedpersons can haveaccess toit.
lOperatorsmustoperatethe machine strictlyaccordingtothe manualandGB7588-2003
(egvEN81-1:1998) rules, otherwise dangersanddamages willbe caused
lAftercompletion of theinstallation,checkwhetherthe motorand brake can functionnormally
accordingtothe requirements.
lThemotormust not beconnected directlywith3-phase power supply, but shouldbepowered
bythe frequencyconverterwhich isdesignedtodrivethe synchronous permanent-magnet
type motor
lThe magnetcoilsofthe motorandbrakeareheating elements,and anyobjectswhich will
prevent itsheat dissipationmust not be placedon the coils
lHigh voltage isgenerated during motorrotation,and even if the powersupplyofthe
frequencyconverterisdisconnected,thereforetouchingthe motorconnection terminalsis

prohibited.
lDuring high-speedrotation ofthe motor,itisprohibitedtoapplybrake bydirectly
short-circuiting the terminals.Butincase ofemergency,terminalshort-circuiting isallowedat
zero-speed startupinorder tomovethe car up and downslowlyfor the purposeofrescuing.
2 ProductDescriptions
2.1 Product Construction
WYJ140 series permanent-magneticsynchronousgearless traction machine(hereafter called
traction machine)adoptsthe low-speed,high-torquepermanent-magneticsynchronous 3-phase
motorwhich provides directwayofdrive.Thereforethe producthasthe advantages oflow
powerconsumption,lownoise,free ofpollution andlittlerequirementofmaintenance.Itsmain
construction characteristicsare:
lThetraction sheavesideadoptsdouble-row self-aligning roller bearing
lThe adopted permanentmagnetsandthe dovetail groovearefixedtothe externalcircle
surface ofthe rotorbyhigh strengthadhesiveinordertoensurethatduringthe operation
course,itwill notdemagnetizeorpeeloffeven iftherotating torqueexceeds 2.5timesofthe
rated torque.
lThe brake systemconsistsoftwosetsofindependentworking armature,friction disc,
electromagnet and brake releasing micro-switch.
17
8
2
9
3
10
4
5
6

Picture1 ConstructionSketch ofthe TractionMachine
Ref. Description Ref. Description
1 Protecting plate 6 Front end cover
2 Traction sheave 7 Connectionbox
3 Anti-trippingrod 8 Brake
4 Forcing screwof traction sheave 9 Lifting hook
5 Retainer ring 10 Rear endcover
●Thisseriessynchronous permanent-magnetgearless traction machineadoptssingle
wrap method,andwrapping rateis2:1.Ifthe userhas specialrequirements,he can
checkwiththemanufacturer, sometypes ofthe machinealsocan be1:1.
●Encoderinstallation:oneissuitableforthe encoderwithsmallvoluteshaft (for
example1300 series ofthe GermanyHeidenhainCompany). Plug the encoderinto
the voluteholeson themainaxleofthe traction machine and fixitonthe mainaxle
withboltsand fixthe outside case byinternalexpanding onthe encoderbase.Our
company’sstandardencoderisERN487modemanufacturedbyGermany
HeidenhainCompany
2.2 Product designationmethod
WYJ140 ———
Tractionratio 2
Tractionratio2 1
Load capacitycode
400 stands for 400 kg
450 stands for 450 kg
630 stands for 630 kg
Speed code
4.0stands for 0.4m/s
10 stands for 1.0m/s
16 stands for 1.6m/s
Center height ofmachine
frame140mm
Traction machine
Permanent magnet excitation
Gearless drive

2.3 Maintechnical parametersoftheproduct
2.3.1 Tractiontechnical parametersof themachine
●Duty S5，40%load，start times180/h
●Traction sheavediameter Ф210mm
●Traction ratio 2:1
●The wrap angleoftractionrope aroundtraction sheaveissuggested tobe 180º.
●Diameterofthe tractionrope is Ф6.5，andsee attached table1forthe number oftraction
rope.
●Groovedistance 11mmwhen it issinglewrap.
●Max. permissibleaxleload 2000Kg
●Max.permissibletravelheight 60m（When thetravelheightisless than30m,the
compensation chainisnot necessary.）
●Balancefactor:0.5
●Ifthe operating conditions provided byusersdo notcomplywithaforesaid
requirements, consult the manufacturer beforecontractsaresigned.
2.3.2 Technicalparametersof drivemotorforthetraction machine
●Type permanent-magnet synchronousmotor
●Poles 10
●Insulation Class F
●Protection Class IP44
●Cooling formisIC00.
●Standard-configuration encoder（ERN487-2048）protection class:IP64.
●The heat inspectorfor the motor winding PTC120
●Voltage and frequencyofthe inverter 3phases，200/400V，50 60Hz
2.3.3 Technicalparametersof thebrake
●Braking torque see table5initem6.2.3.
●Voltage DC 200±10V
●Current seeitem4.3.2
●Workingair gap 0.1 0.2mm(factorysetting or after readjustment）
●Max working air gap 0.3mm
●Workcontinualrate 50%
2.4 Ambient conditionsforoperation
●not exceed 1000m。
●environmentaltemperature-5 40 。
●Underthe temperatureof20 ,the max.relativehumiditynotexceeds90%.Nocondition
ofdew condensate
●Ventilation shouldbe good enough toensurethatadequateheatcanbe dissipated
through convectionand radiation waves
2.5 Contentsof theproductpackage
●1unit oftraction machine.

●Accessories:one encoderconnecting cable(which isintegratedwiththestandard
encoder ERN487-2048).
●One copyofuser’smanualfortraction machine and one copyofuser’smanualfor
encoder.
●Partsoptionalbycustomers:bed plate,diversion sheave(deflectionsheave), etc.as per
the order contract.
●User’sspecialrequirementsshouldbe specifiedinthe appendixattached tothe
contract when the contract ismade.
●Inordertoavoidincreasingthe manufacturer’scostand affecting deliverytime,itwill
be better ifuserscanmake selectionwithinthe specified scopeofsupply
3Handlingand Storageof Product
3.1 Storage
●The tractionmachine shouldbe stored inan enclosed place whichisdry,dustless,
well ventilated and without apparent vibrations.
●If the machine hasbeen stored formorethan 3months,itshouldbe operated on two
oppositedirections formorethan 10 minutes atthe speedof20r/mintodistributethe
lubricating grease evenlyinthe bearing inorder toavoidthe bearing being rusted
3.2 Lifting
●The lifting hookisonlyusedforlifting thetractionmachineand itsbedplate;any other
weightsmust not beadded
Picture2productlifting sketch
4Installation
4.1 Preparationspriortothemachineinstallation
●Whentheboxes areopened,checkthe goodsbyvisualtosee iftheyareintact. If
thereisdamage,and even if itisurgentlyneeded,do notinstalland operatethe
damaged machine
●Beforeinstallationofthemachine,calculatepermissibleload ofthe base and
foundation toseeiftheyaresatisfied.
●The baseandfoundation mustbe firmand hardenough toensurethe machinecan be
operatedunder allpermissibleload range.
●The planeness ofthe ground wherethe machine willbe installed shouldnotexceed
0.2mm.
●The machine mustbe installed inaclosed roomwhererelativesafetyprotection
measures can be observed.Ifthe machineneedstobe installed inapit, the pitshould

be waterproofbecause ifthe machine issoaked inwater,itmaycause destructive
damage.
●The feetofthe traction machine shouldbe fixed withthe M16 boltof12.9grade
intensity(feet installation).The spanner tightening torque is320N.m
4.2 Preparationspriortoelectrical connections
●The electricalconnection shouldbe connected by qualifiedelectrician afterthe
machine isinstalled.
●Switch offallcircuits(including attached orauxiliaryones)beforeconducting any
connectionoperations, especiallybeforeopening theconnectionbox.
●Beforeputting intooperation,insulation resistance ofthe motorand brakemagnet
shouldbe tested with500Vmegohmmeter. It’svalue shouldbe bigger than 0.5MΩ. If
the value islowerthan0.5MΩ,the coil shouldbe heated and dried.Working
frequencypowercan be used toheatitand itsvoltage value shouldbe 5%lowerthan
the rated voltage value ofthe motorand 30%lowerthan the rated voltage ofthebrake.
Observethe heating statemomentarily. The outsidecase surfacetemperatureshould
not exceed 80
●The permanent electricconnection shouldensurereliableconnection no looseness.
●Noexternalmaterials,dustand humidityairwillbe allowedtoenterintothe
connectionbox.Therefore,strictinspection shouldbe done beforeconnections and
locked the cableconnectorafterconnections tosealthecableentranceafterthe
cableenter intothe connection box
Operatestrictlysubjecttothefollowingsaferules toavoidpersonalinjuryor
machinerydamage.
●Switch offpower source.
●Anydevices thatcan activatethe machine bycausaltouches shouldbe closed or
locked.
●Makesurethat the power source has been separatedwithsafedevices.
●The circuitthatcanbring highvoltage(higherthan 1000V)shouldadoptdependable
groundingor short circuit.
●Neighboring operating componentsshouldtakesafedevices or protectivecover.
●The cableconnectorforthe machine iswaterproofandinaccordancewith
requirementsofEMC.
●Max.allowablevoltage ascending rateforterminalswhich areintheterminalbox is
1.3kV/μs,and max.voltage is1.3KV.Ifabove-mentioned values arepossibly
exceeded,afiltershouldbe installed oran externalreactorshouldbe connected in
series.The filterorreactorwill substantiallyincreasethe insulationlifeofthemotor,
but alsowillreducethe max. rotating torque ofthe motor by3~5%
●The insulating criterion forthe motoris700V,which isalso the maximumDC bus bar
voltage that the 400Vfrequencyconverter can reachinstantaneously

4.3 Electrical connection
4.3.1 Connectionof terminal boxof thetraction machine
ElectromagnetconnectstoDC
powersupply(+,-)
Wiringofmicroswitchof
electromagnetinlet(C1,NC1,C2,NC2)
WiringinletofPTC heat detector
Entryofpowersupply cableand
groundingwirefor traction
machine(U,V,W)
Picture3Connection diagramofconnectionbox for traction machine
●Inordertoensurethatthe motormagnetwillnotbe demagnetized permanentlydue to
overheat, causing damageorperformance deterioration ofthe motor,itisnecessary
toconnectthe PTCdetectorstothe correspondingcontrolcircuits,so thattheycan
disconnectthe powersupplyinthe possibleshortesttimeincaseofoverheat
occurrence.
●Max. operating voltage ofPTCheat detectorsshouldnot exceed 25V.
●Max.allowableoperatingtemperatureofthe permanentmagnetis150 ,but
irreversibleloss ofmagneticperformance willoccuratthistemperature,which will
haveadverse effecton theoperation performance ofthe motor.Inordertoimproveits
reliability, PTC heat detector isset to120 .
●The reliableearthingmustbe providedforthemotorinordertoensureitssafe
operation.
●Inordertopreventthe maincables (outputcablesofthe converter) from causing any
electromagneticradiation and interference tothesurrounding environmentand
protectthe signaltransmission cables(cables connectingthe encoderwiththe
frequencyconverter) fromthe electromagneticradiation and interference,the main
cables shouldbe as shortas possibleandshouldbethe shielded 3-corecables.The
bothendsofmetalsheathofthe shielded cableshouldtwistand then connectto
groundatthe sametime.The currentdensityofthemaincableshouldnotexceed
7A/mm2, and itslinevoltage drop shouldnot exceed0.3V
●3-phasewindingsinthe motorhavebeen connected in Y”connectionandthree
lead-out lines areprovided
●Inthe adjacent3-phase winding of the motor,thereis3PTC heatdetecting elements
connected witheach otherinseries,anditsfunction temperatureis120.When

externalvoltage of2.5Visapplied,corresponding resistancevalues atdifferent
temperatures areshowninTable1
Table1The inspecting temperatureand resistance corresponding tableofPTCheat
detector
Resistance of3PTCheatdetecting
elementsconnectedwitheachother
inseries (Ω) ≤300 ≤1650 ≥3990 ≥12000
Temperatureinthe corresponding
winding (℃) 25 115 125 ≥135
4.3.2 Connectionof thebrake electromagnet connection box
●The electromagneticcoilinthe brake electromagnetshouldbe connected withDC
voltage.Whenthe brake isrequired torelease,quickresponse excitation voltage of
DC200±10Vshouldbe electrified until the power supplyisswitched off.
●Forthe connection ofthe brake,itisnecessarytouse 2-corecablewithits
cross-section ≥0.75mm2and itsinsulating withstand voltage≥500V
●The connectionterminalsofelectromagneticcoil and2micro-switches areinside the
connectionbox,and thereshouldbe no dust, humidityand othersobjectsinside the
connectionbox duringconnecting(see picture3).
●The connection terminalofbrakingmicro-switch shouldbe connected in
normally-closed state, namelywhen the brakeisinbraking state(the electromagnetic
coilisde-energized), the twogroupsswitchcontactsareinclosed state,and when the
electromagneticcoil ofthebrake isenergized (the brake isreleased), the twogroups
switch contactsofthe braking micro-switch areinopen state
●The currentis0.3Awhenthe excitationvoltageforbraking electromagneticcoilis
DC200V.
●Forthe interrupting capacityofmicro-switch,the voltagedoes notexceed AC250V,
current doesnot exceed 0.5A
●The actuation position ofthe braking micro-switch can be implementedbythe
adjustingbolt ofbrake switch.
4.3.3 Encoderconnection
●Beforethe encoderisconnected ordisconnected withthe frequencyconverter,power
supplied tothe frequencyconverter must be turned offinorder toavoidany damages
tothe inverter and encoder.
●WYJ140 series traction machinesmaybe provided withawiderange ofoptional
encodersso thatcan selectdifferent inverters.Onordering,usersshouldselect
corresponding encoderaccording tothe usedfrequencyconverter,orselectthe
frequencyconverteraccordingtothe used encoder.Ifusersfeeldifficulttodetermine
it, theyshouldconsult the manufacturer ofthe frequencyconverter.
●The standardlengthofthesignalcableofencoderis10m.It alsocan be provided as
per users’requirements, but the max lengthcannot exceed10m
●Inordertopreventthe interferetothesignalcableofencoderfromthe cableof
traction machine,the powersupplycableoftraction machines andsignalcableof
encodersshouldbe laidseparately.
5Commissioningof traction machine
●Commissioning oftractionmachine isactuallytoensureoptimumadaptation between
frequencyconverterandtraction machine.Thereforeitisnecessarytohaveagood
understandingand abundantexperiences tothe frequencyconverterin
commissioning and use

●Afterinstallation and electricalconnections ofthetraction machine arefinished,check
carefullywhetherthe fixingand electricalconnectionofthemachine isreliableand
correct.
●Afterchecking and noerrorsarefound,beforesuspendingthe carand
counterweights, enter related parametersofthe machineintothe frequencyconverter,
and enablethe frequencyconvertertosupplypowertothe motoratno load.Inthis
case,the motorand frequencyconvertershouldbe inself-learningstatus.The
frequencyconverterreadsoutrelatedparametersofthe motorand relativeposition
values ofmagneticfields ofthe stator androtor ofthe motor.
●Afterself-learning,supplypowerinnon-load statetocheckwhetherthe self-learning
iscompletedcorrectly.Afterconfirmation,suspend the carandcounterweights.
During commissioning,the learning had betterbecarriedoutthreeorfourtimes.
Checkifthe nonconformance ofmagnetic-fieldpositionreadingsofthe statorand
rotor isveryslight.
●Asdifferentusersselectthe frequencyconverterfromdifferentsuppliersand types,
the actual operationandcommissioning shouldbeconducted strictlyaccordingtothe
operation manualssuppliedby the frequencyconvertermanufacturer. Ifthereareany
problemsduring the commissioning,please contactthe frequencyconverter
manufacturer intime.
●Inordertoreducethe braking noise beforeleaving factory,thereisslightgapbetween
the brakeshoeand brakewheelrim.During the firstself-learning,friction existsand
the stateisnotrealno-loadstate.Therefore,afterfirstlearning,run the machine atno
loadfor3minorlongerbeforeasecond learning can be started.Or otherwise,the
current on loads willbe increasedby10 15%
6Commissioningof brake mechanism
6.1Descriptionof brake mechanism
1
2
3
4
5
6
7
8
9
10
Ref Description Ref Description
1 Electromagnetcore6 Adjustingbolt ofbrakingmicro-switch
2 Armature 7 Jamnut
3 Friction disk 8 Brakingmicro-switch
4 Thread bushing 9 Protecting ring
5 Lead-out line of electromagnetcoil 10 Lockbolt
Picture4 Brake mechanismdiagram
Brake When theelevatorisleveling,de-energizedorininspection offailure,the electromagnetis
underde-energized state,the armaturepushes the disc underthe functionofspring,and itbrakes
bythe friction between thefriction disc,armatureand electromagnetcore.Asthe frictiondisc and

the mainaxleofthe traction machinearecoaxialrotation, the mainaxlebrakes.
Normal release Whenthe tractionsheaveprepares torotateor isrotating, the electromagnet coil
isenergized,and the armatureand ironcorewillpull inwiththe function ofelectromagneticforce
and overcomes the pressureforce ofthe brake spring andreleasethe brakewheelrim, friction disk
and the mainaxlerotatecoaxially.
●The functionofthe brakingmicro-switch istodeterminatethatifthe brakeisunder
releasing stateorbraking state.The terminalofthe switch shouldbe connected tothe
control circuitofthe motor.Asitissafetyswitch,when the usersneed,the brakecan
be functionedas one part ofthe up travelcar over-speed protectioncomponents.
●Brakemechanismconsistsoftwogroups ofseparateoperation mechanisms,and
each group consistsofelectromagnet, armature,spring,friction disc and thread
bushing.If one group ofoperation mechanism isdamaged,the othergroupisstill in
effect toensurethe safetyofthe elevator operation
6.2Commissioningof brake mechanism
●The brake issettorated braking torque beforedelivery. Generally,usersdo notneed
toreadjust it.
●Asthe twogroupsofoperation mechanismsarefixed bythe same4lockbolts,each
group operation mechanismcannot be disconnectedindependently.
●The ratedbraking torqueofbrake, referstothebrakingtorque of allthe brakes on the
traction machinesis2.5timesofthe torque when the machine isatratedtorque.For
WYJ140 series tractionmachines,itadopts2groupsofbrakes,so the rated braking
torque ofbrakereferstothe braking torqueofone group electromagnetis1.25 times
ofthe torqueofthe ratedtorque oftractionmachine.
6.2.1Adjustment of airgapamongfriction disc,armatureandelectromagnet core
Step 1 loosen the4threadbushingson one brake,Step2: tighten4lockboltscompletelytoenablethe
do notloosen the thread bushingsonanotherbrakebraking surfacesofthe friction disc topressonthe armature
and electromagnet corefully
Step 3 loosen 4lock boltsto angle72 degreesanticlockwise,Step4: tighten the 4thread bushingscompletely.
at thistime, thegapbetween the friction surfaceof thefrictionAt thistime, one brakeisalreadyadjusted.Use
discandthetwobraking surfacesarearound0.15mm,measurethismethodtoadjust another brake.

the gapbetween frictionsurfaceand ironcorebyfillergauge.
Phenomenon Reason Disposalmethod
withfriction noise too small
gap AsperStep3toloosen anticlockwise 4lockboltstoone smallangle, then doas per step 4.
Nofriction sound,but
too loudwhen brake
and release too biggap
Loosen anticlockwise4thread bushings toasmall angle,
then tightenthe 4lockboltscompletely.
●The sizeofbrake gap has directeffecton the brakenoises and the reliability,it should
be adjusted carefullyand intime.When itisgreaterthan 0.2mmorthe noiselevelis
increasedsubstantially, it isnecessarytodo adjustment
●Ifthe brake can notopenfully,which willmake the brake plateofthebrake disc
overheatingtoreduce brakingtorque oreven lead tocarbonization andpeeling off
duringthe operation.Besides,itwill alsopossiblycause overload ofthe motor, and
thus the motorwilloverheat, which willdrivethe protection circuittofunctionorwill
leadtomalfunctioningor even damages
●Afteradjusting the brakegap,the brakingmicro-switch shouldbe adjustedtothe
status whichismentionedinthe item4.3.2.
●The encoder base ofthetraction machineisfixedonthe iron coreofbrake, soloosen
the encodereachtimebeforeadjusting brake.Fixthe encoderafteradjusting the
brake, and thepositionofthe encoder ischanged, sothe self-learning isnecessary.
6.2.2Adjustment of braketorque
The brakeisalreadyadjusted tothe ratedbrake torque,please see the table3.Usersdo
not need toreadjust it.
Table3
Specificationsoftraction
machine
Rated torque
of traction
machine
(N.m)
Braketorqueof
brake
(N.m)
WYJ140-XX-320-2 115 145
WYJ140-XX-400-2 132 280
WYJ140-XX-450-2 160 280
WYJ140-XX-630-2 225 280
7Emergencyrescue
Asthereisno hand wheelandmanualrelease device,the emergencyrescue mustbe
executed byusingemergent power supply.
●The emergentrescuecan be done byusing the potentialenergy.When the motorhas
stoppedrunningoritrunsataspeed below5%ofitsrated speedand the brake is
underreleasing state,short-circuitconnectthe 3lead-interminalsofthe motor. The
short circuitmustbeimplemented bycontactor, and make surethatthe3lead-in
terminalsandoutput endofinverter areinthe statues ofopen circuit.
●Additionally, do notreplace the normalbrake function withthe short-circuiting of
motor’slead-interminals, which isonlyan optionalemergent rescue measure.
8Protectionandmaintenance of theproduct
8.1 8.1Routineinspectionand maintenance of theproduct
●Afterthe productisputintooperation,itshouldbemade routine inspection,certain

protectionand maintenance tomake thegearless tractionmachine operatenormally.
See Table4for the routineinspection contentsandthe relativemaintenancemethod
Table4 Routine inspection contentsand relativemaintenance method
Checkparts Check
cycle Checkcontents Maintenance method
External
surface Six months Isit clean? Clean thedustfromthe
machine surface(neverwash
it withwater)
Exposed
fasteners Six months Isit loose? Tighten the loose fasteners
electrical
connections
Six
months Havethe terminalscomeloose? Are
the cables damaged?
Tighten the looseterminals
and replace the damaged
cable.
Bearing noise
Six
months Listen tocheckifthereareany unpitchedsoundsexceptharmonic
sound?
Replace bearing if itisvery
serious.
Encoder Six
months Has the fixingofthe shaft andshell comeloose? Tighten it again.
Traction
sheave
Six
monthsBewearing seriously? Replace the traction sheave when the tractionforceisnot
enough.
Brake 1month
Isthe braketorque notbigenough?
Arethereanyblackcarbonized things
on the brakewheelrim?The
thickness ofbrake plateisless than
3mm?
Maintainaccording tothe
item8.2.
8.2Inspection andmaintenance of brake
8.2.1Cleaning thecarbonizedthingson thefriction plateandthesurfacesofthetwobraking
surfaces
●Afterlong timerunning ofthe gearlesstractionmachine,the brake platesurfacewill
be carbonized and hassomeblackcarbonized thingsleft on the surfacesofthe brake
plate, armatureand the iron corebecause oflong timefriction amongthe brake plate,
armatureand the iron core,which willaffectthe traction machinetoreduce itsbrake
torque.Ifthereisanyphenomenonlike above,the surfaces ofthe brake plate,
armatureandiron coremust be cleanedand maintained intime
●The friction discconsistsofsplined disc and brakeplate.When the thicknessofthe
brakeplatewhichisadhered onthe friction discislessthan 3mm,the friction disc
shouldbe replacedtoensurethe safeoperationofthe lift.
●Beforecleaning thecarbonized things,the elevatormustbe stoppedinordertoavoid
anyaccidents
●It isnotallowedtooperatethe traction machine during the gapadjustment. Atthis
time,the positionofthe encoderischanged duetothe adjustmentofbrake.The
self-learning isnecessaryafter bothofthe brakes arewell adjusted.
Themaintenance stepsof thebrake as follows
●Lift the car, and then removethe wireropes fromthetraction sheave.
●Dismantlethe encoder,then disconnectthe lead-outlines of electromagneticcoil and
braking micro-switchfromthe connectionbox.
●Whendisconnectthe brake,please loosenthe 4lockbolts,thentakeoutthe whole
brakeandreplace thefriction disc.
●Installthe newbraketothe tractionmachine,adjustthe airgapsamongthefriction
disc, armatureand electromagnet coreaccording toitem6.2.1.
●Installthe encoder after theadjustment ofbraking gap, then do the self-learning.

8.2.2Commonfaultsandtroubleshooting of brake mechanism
phenomena Causes Solutions
Insufficient brake
torque
1.Oil grease ordirtythingsexist
on the brakewheelrim
2.Frictionplateisexcessively
worn
1. Removethe grease ordirt
2. Replacethe frictiondisc
Brakecannot be
released or
cannot
holdafteritis
released
1.Nopowersuppliedtobrake
magnet coil.
2.brakegap istoo largeortoo
small
3. voltage istoo low
4.brakearmatureassemblyis
seized
5. Excessiveheating
1. Checkthewireconnection.
2. checkandadjust the brakegap
3.checkwhetherthe voltage is＜165VDC
4. Eliminatethe causes
5. checkifthe voltage istoo high
Delayinbrake
release 1. Too large brake gap
2. Too low voltage 1. checkandadjust the air gap
2. checkwhether the voltage＜165VDC
Brakecannot be
appliedordelays
inapplyingthe
brake
1.Afterturning offthe switch,
highresidualvoltage existson
the coil
2.brakearmatureassemblyis
seized
3.Frictionplateisexcessively
worn
1. Checkresidualvoltage on the coil
2. Eliminatethe causes
3. replacethe frictiondisc
Too loud noiseis
produced when
brakeisreleased
or applied
Too bigbrake gap
Checkandadjustthe airgap
8.3Replacementof traction sheave
Step 1: Disconnect the forcing screw oftraction sheave
(number 4intable1) and retainer ring (number 5).
Step 2:Asshowed inpicture5, thereisamat which diameter
isno morethan 65mmbetween retainer ringand mainaxle,
tighten 3pcs ofM10 boltsevenly, then takeout the traction
sheavefromthemainaxle.
Step 3: Put the new tractionsheavetothe main
axle, install the retainer ringand then tighten bybolts.
mat
bolt M10

Picture5. sketch oftractionsheavedisassembly
9Sparepartslist
Ref Partsdescription Remarks
1 Traction sheave According totheloadcapacityand wrapping ofwireropesaround traction
sheave.
2 Bearing ofencoder
end Deep grooveball bearings6312-2RS。
3 Bearingoftraction
sheaveend Self-aligning roller bearing2215
4 Encoder ERN487-2048manufactured byHeidenhain,orotherencodersspecified by
customers.
5 Brakeplate Non-asbestostype material withhigh friction coefficient.
6 Braking
micro-switch V4NS
10 QualityWarranty
●The manufacturershall provide maintenanceand repairfree ofcharge within18
months fromthedateofBill ofLading.Themanufacturerwillprovide lifelong
maintenance service atpropercostforthe damages arising after18 months or
causeddue tootherfactorsratherthan the faultsofthe manufacturerwithinthe
warrantyperiod.
11 Thismanual maybe subjecttorevision ortheproductmaybe subjecttochangewithoutnotice.
Please contact the manufacturer

Appendix1 Installation size and parameters ofmotor
Type Load
Speed Power RevFrequency Cur. Torque
Rope BL Weight
(kg) (m/s) (kW) (r/min) (Hz) (A) (N·m) (kg)
WYJ140-6.3-320-2 320 0.63 1.36 114 9.5 3.6 114 265 590 125
WYJ140-4.0-400-2 400 0.4 1 72 6 3.3 132 295 620 160
WYJ140-10-450-2 450 1 3 182.4 15.2 8 160 295 620 160
WYJ140-16-450-2 450 1.6 4.8 291.6 24.3 12.2 160 295 620 160
WYJ140-10-630-2 630 1 4.3 182.4 15.2 11.5 225 335 660 180
WYJ140-16-630-2 630 1.6 6.9 291.6 24.3 17.5 225 335 660 180

WYJ140 Series
SynchronousPermanent-MagnetGearless Traction Machine
●地址:浙江省宁波市东吴镇
Add:DongWuTown,NingBo.China
●邮编 P.C:315113
●电话 TEL：[phone]+86-0574-88336012
●传真 FAX：[phone]+86-0574-88489056
●Website:http://www.xinda-group.com
●E-mail: [e-mail]
[e-mail]