Nominalgspeed

Speedmeasurementsystems-Solutionsforreversingandnon-reversingdrivesContentsOverviewoffrequencymeasurementmethods03Overview–Solutionsforreversingdrives04Overview–Solutionsfornon-reversingdrives06Oursolutionsforreversingdrives08Oursolutionsfornon-reversingdrives16Speedmeasurementsystemsinsideenclosures(GDMA)21Speedmeasurementsystemswithtachogenerators28AccessoriesPulsebandsforshafts29Bracketsforspeedpickups31Frictionwheelforshafts34Rubbercouplingandattachment35Linedrivers36Miscellaneousformulaeandinformationconcerningspeedmeasurementsystems37OverviewofSpeedmeasurementsystemsbasedonthefrequencymeasurementmethodSpeedmeasurementsystemsevaluatesignalsinwhichthefrequencyisproportionaltothespeed.
Thesesignalscaneitherbegene-ratedbymechanicallydrivenspeedpickupsorbycontactlessspeedsensors.
Theyareevaluatedbylimitvalueswitches,measuringtransducersormultifunctionaldevicesthatcanbeconnectedtoothersystems.
Thevisualisationsystemstaketheformofanalogueindicators.
PossibleapplicationsofthevariousfrequencymeasurementmethodsMechanicallydrivenspeedpickupscanbedirectlyflange-mountedontheendfaceofarotatingshaftusinganadapter.
Alternatively,theycanbeconnectedmechanicallytoashaftoraflywheelbymeansofafrictionwheel.
Contactlessspeedsensorsarecapableofsensingmovingferromagneticbodiesthathaveasuitablesurfacestructure.
Thesecouldtaketheformofgearwheelswithvarioustoothshapes,screwheads,drillholes,apertures,groovesorevenpulsebandsmountedonsmoothshafts(seepage29).
SpeedmeasurementandrotationaldirectiondetectionIfyoujustwanttomeasurethespeed,itissufficienttousespeedpickupswithonechannel.
However,ifyouwanttoimplementanadditionalfunctionfordetectingtherotationaldirection,youhavetohavetwooutputsignalswithaphaseoffsetof90°.
Thiscanbeachievedeitherbyusingtwosingle-channelspeedpickups/speedsensors(whichmustbepositionedpreciselyinrelationtooneano-ther)orbyusingonetwo-channelspeedpickup/speedsensorinstead.
Ifmechanicallydriventwo-channelspeedpickupsareused,thereisalreadyaphaseoffsetofexactly90°betweenthetwooutputsignals.
Dependingontheirtype,contactlesstwo-channelspeedsensorsareeitherpermanentlypre-setatthefactoryfortherelevantferromagneticmaterialmeasureortheycanbeadjustedduringinstallationbyrotatingthesensoruntila90°phaseoffsetisachieved.
Thedirectionofrotationcanbeevaluatedwithananalogueindicatorfeaturingintegratedrotationaldirectiondetection,amultifunc-tionaldeviceoranenclosedspeedmeasurementsystem(seepage21).
AnoverviewofthevariousfrequencymeasurementmethodsMechanicallydrivenspeedmeasurementContactlessspeedmeasurementSpeedsensorsdifference-HallprincipleSpeedsensorsmagneto-inductiveprincipleSpeedmeasurementwithpick-ups(withsupplyvoltage)Speedmeasurementwithtachogenerators(withoutsupplyvoltage)frequencymeasurementmethodsCharacteristicsofthedifference-HallprincipleSensorsavailablewithamulti-channeldesignAlsosuitableforverylowspeeds(7mm>5mmTemperaturerange-40.
.
.
+120°C-40.
.
.
+105°CDegreeofprotectionIP66,optionallyIP68IP66orIP67BackupNobackuppossibleIfeitherofthesensorsfails,speedmeasurementcanstillbeperformed.
However,itmaybenecessarytoswapthesignalconnections.
Inthiscase,rotationaldirectiondetectionisnolongerpossible.
Upto10devicescanbeconnectedperQoutput13Contactlessspeedmeasurementwithone2-channelsensor,typeFAHZ11(solutionD),orwithtwo1-channelsensors,typeFAJ11orFAH11(solutionF),withmultipleoutputs,speedmonitoringplusslipandoffsetmeasurementStandard:OneFAHZ11ortwoFAJ11/FAH11+multifunctionaldevice+analogueindicator(roundorsquare)SolutionDandsolutionFDescriptionofsystemTheFAHZ11andFAJ11/FAH11contactlessspeedsensorseitherdetectthespeedviaapulseband(seepage5,Fig.
1.
2)orviaagearwheel/flywheel(seepage5,Fig.
2.
1).
Thespeedsensorsemitasquarewavesignalateachoftheiroutputs,thefrequencyofwhichisproportionaltothespeed.
Inordertoimplementafunctionfordetectingtherotationaldi-rection,itisnecessarytohavetwooutputsignalswithaphaseoffsetthatisascloseto90°aspossible.
InthecaseoftheFAHZ11two-channelsensor,thiscanbeachievedbyrotatingthesensorinitsholder.
IftwoFAJ11/FAH11sensorsareused,theymustbothbepositionedpreciselyinrelationtooneanothersothatthedesiredphaseoffsetisestablishedbetweenthetwosignals.
Bothoutputsignalsfromthesensorswiththephaseoffsetof90°betweenthemarefedintotheNORISPEEDFMN6multifunctionaldevice,wheretheyareevaluated.
Thedeviceisfreelyparame-trisable.
Aswellasdetectingthespeed,italsodeterminestherotationaldirectionoftheshaftonthebasisofthephaseshiftbetweenthesignals.
Themultifunctionaldevicealsoofferssomeotherhandyfunctions:Foreachfrequencymeasurementchannel,thereisanintegratedmeasuringtransducerwithstandardisedfrequency-dependentanalogueoutputsignals(0.
.
.
5V,0…10V,2.
.
.
10V,+/-5V,+/-10V,0.
.
.
20mAor4.
.
.
20mA)toallowconnectiontoexternalsystems.
Thereareseveralprogrammablelimitvaluesforspeedmonitoring(e.
g.
engineslowdown,shutdown).
Thedevicecanbeeasilyadjustedviathebuttonsandintegrateddisplay.
TechnicalreferenceSolutionDFAHZ11FMN6SolutionF2xFAJ11/2xFAH11ProductReferencedatasheetSpeedsensorFAHZ11DB-FAHZ11SpeedsensorFAJ11/FAH11DB-FAJ11/DB-FAH11MultifunctionaldeviceFMN6DB-FMN6AnalogueindicatorNIx3-.
.
.
-U1AnalogueindicatorNIx3-.
.
.
-U2AnalogueindicatorNIx3-.
.
.
-U4AnalogueindicatorNIx3-.
.
.
-I1AnalogueindicatorNIx3-.
.
.
-I2DB-NIR3(round)DB-NIQ3(square)NIx3-.
.
.
-Ux/IxFMN6NIx3-.
.
.
-Ux/IxANORIMETER3analogueindicator(roundorsquare)withavol-tageorcurrentinputisconnectedtotheNORISPEED.
Variousversionsarepossible;seetableentitledTechnicalreference".
Theindicatorshowsthespeedandrotationaldirection(bypoin-tingtotheleftorright).
Ifaspeedlimitvalueisrequired,itcanbeindicatedbyanadditionalstatusLEDontheindicatororbymeansofaflashingpointer.
12345678+UB-UBNIR3+(BN)-(GN)Q1(WH)Q2(WH)12345678+UB-UBNIR3+(BN)-(GN)Q1(WH)FAHZ1112346785Q2(YE)FAJ11/FAH11FAJ11/FAH11ConnectiondiagramforsolutionD,examplescenarioinvolvingtheFAHZ11,FMN6andNIR3SupplyvoltageConnectiondiagramforsolutionF,examplescenarioinvolving2xFAJ11,FMN6undNIR3Forbothsolutions,wealsooffercompatibleaccessoriestofacilitatemountingontheshaftoronthegearwheel/flywheel.
Amoun-tingexampleforsolutionDcanbefoundonpage31.
AmountingexampleforsolutionFcanbefoundonpage32.
14Illuminationcontrol(eitherpolarity)Out2canbeconnectedinthesameway.
Illuminationcontrol(eitherpolarity)AnticlockwiseClockwiseNominalspeedfiringspeedOverspeedStatusSupplyvoltageIlluminationcontrol(eitherpolarity)Out2canbeconnectedinthesameway.
Illuminationcontrol(eitherpolarity)AnticlockwiseClockwiseNominalspeedfiringspeedOverspeedStatus15AnoverviewofthekeyadvantagesofthetwosolutionsanddifferencesbetweenthemSolutionDSolutionFwith2xFAJ11ApplicationSpeedpick-up:TheFAHZ11speedpickupfunctionsaccordingtothedifference-Hallprinciple.
Installationisdirection-specific.
Forthepurposeofinstallingandaligningthesensor,thescanobjectshouldideallybevisible.
Oncethesensorhasbeenpreciselyaligned,itout-putstwosquarewavesignalswithaphaseoffsetof90°betweenthem.
Speedpick-up:Easytouse:FAJ11speedpickupsrelyonthemagne-to-inductiveprinciple.
Installationoftheindividualsensorsisnotdirection-specific.
Therefore,thissolutionisusedwhenthescanobjectisnotfreelyaccessibleanditisdifficulttoalignasensorprecise-ly.
Nevertheless,bothsensorsmustbealignedforsensinginsuchawaythatthereisaphaseoffsetof90°betweenthetwosignals.
SpeedAlsosuitableforverylowspeeds:0.
2.
.
.
20,000HzRestrictionsapplyatveryhighandverylowspeeds:5.
.
.
10,000HzModulesizesm1tom3≥m2Toothfacewidth>7mm>5mmTemperaturerange-40.
.
.
+120°C-40.
.
.
+105°CDegreeofprotectionIP66,optionallyIP68IP66orIP67BackupNobackuppossibleIfeitherofthesensorsfails,speedmeasurementcanstillbeperformed.
However,itmaybenecessarytoswapthesignalconnections.
Inthiscase,rotationaldirectiondetectionisnolongerpossible.
16fornon-reversingdrivesOursolutionsSpeedmeasurementwithmechanicallydrivenspeedpickup,typeNADS3,optionallyavailablewithadditionalanaloguespeedsignalsand/orswitchingpointsforaspeedmonitoringfunctionStandard:Speedpickup+analogueindicator(roundorsquare)OptionI:Speedpickup+analogueindicator(roundorsquare)+measuringtransducerOptionII:Speedpickup+analogueindicator(roundorsquare)+limitvalueswitchDescriptionofsystemThemechanicallydrivenNADS3isatwo-channelspeedpickupthatemitstwosquarewavesignalsatitstwooutputswithapha-seoffsetof90°betweenthem.
Theoutputfrequencyisproporti-onaltothespeed.
Withthissolution,theNADS3iseitherdirectlyflange-mountedontheendfaceofarotatingshaftusinganadapter(seepage7,Fig.
2.
2andpage35)orismechanicallyconnectedtoashaftoraflywheelbymeansofafrictionwheel(seepage7,Fig.
1.
1andpage34).
TheNADS3isconnectedtoaNORIMETER3analogueindicatorfeaturingafrequencyinput.
Variousversionsarepossible;seeta-bleentitledTechnicalreference".
Forthepurposeofindicatingthespeed,eitheroutputQ1orQ2canbeused.
Theindicatorshowsthespeedoftheshaft.
Ifaspeedlimitvalueisrequired,itcanbeindicatedbyanadditionalstatusLEDontheindicatororbymeansofaflashingpointer.
Thescalecanbedesignedforthepointertomoveeithertotherightortotheleft.
OptionI:Ifoneormoreanaloguespeedsignalsarerequiredinadditiontothespeedindicationfunction(e.
g.
foracontroller),extraVF5measuringtransducerswithafrequencymeasurementinputcanbeconnectedtotheNADS3.
Thesemeasuringtransdu-cersprovidestandardisedfrequency-dependentanalogueout-putsignals(0.
.
.
10V,2.
.
.
10V,0.
.
.
20mA,4.
.
.
20mA).
TechnicalreferenceOptionII:Ifadditionalswitchingpointsarealsorequired,e.
g.
forautomaticspeedmonitoring(engineslowdown,shutdownetc.
),additionalRF5limitvalueswitcheswithafrequencymeasure-mentinputcanbeconnectedtotheNADS3.
Eachoftheselimitvalueswitchescanbeusedtosetafreelyselectableswitchingpointwithinthespecifiedspeedrange.
Naturally,anyofthedeviceslistedunderoptionsIandIIcanbecombinedwithoneanother.
Itisalsopossibletousemultiplein-dicators.
Atotaloftendevices(i.
e.
anycombinationofindicators,measuringtransducersandswitchingdevices)maybeconnec-tedtoeachchannelofoneNADS3.
However,thenumberofcon-necteddevicesmaybesubjecttorestrictionsinindividualcasesifthelineistoolongandtherearehighlevelsofinterference.
ProductReferencedatasheetSpeedpickupNADS3DB-NADS3AnalogueindicatorNIR3-.
.
.
-F1DB-NIR3(round)AnalogueindicatorNIQ3-.
.
.
-F1DB-NIQ3(square)MeasuringtransducerVF5DB-VF5LimitvalueswitchRF5DB-RF5SolutionGSolutionGOptionI:OptionII:NADS3NIx3-.
.
.
-F1VF5RF5N/C+UB-UBNADS3NIR3+(BN)-(GN)Q1(WH)Relay(BK)567125673412OutputOutput+_+_mA+_Q+_Q+_Output34Q2(YE)N/C12345678N/OVF5RF5NIx3VF5RF517ConnectiondiagramforsolutionG,examplescenarioinvolvingtheNADS3,VF5/RF5andNIR3OptionIIOptionIStandardSpeedmeasurementwithmechanicallydrivenspeedpickup,typeNADS3,withmultipleoutputs,speedmonitoringplusslipandoffsetmeasurementStandard:Speedpickup+multifunctionaldevice+analogueindicator(roundorsquare)SolutionHDescriptionofsystemThemechanicallydrivenNADS3isatwo-channelspeedpickupthatemitstwosquarewavesignalsatitstwooutputswithaphaseoffsetof90°betweenthem.
Theoutputfrequencyisproportionaltothespeed.
Withthissolution,theNADS3iseitherdirectlyflange-mountedontheendfaceofarotatingshaftusinganadapter(seepage7,Fig.
2.
2andpage35)orismechanicallyconnectedtoashaftoraflywheelbymeansofafrictionwheel(seepage7,Fig.
1.
1andpage34).
OneorbothoftheoutputsignalsfromthespeedpickuparefedintotheNORISPEEDFMN6multifunctionaldevice,wheretheyareevaluated.
Thedeviceisfreelyparametrisable.
Aswellasde-tectingthespeed,italsodeterminestherotationaldirectionoftheshaftonthebasisofthephaseshiftbetweenthesignals.
Themultifunctionaldevicealsoofferssomeotherhandyfunctions:Foreachfrequencymeasurementchannel,thereisanintegratedmeasuringtransducerwithstandardisedfrequency-dependentanalogueoutputsignals(0.
.
.
5V,0…10V,2.
.
.
10V,+/-5V,+/-10V,0.
.
.
20mAor4.
.
.
20mA)toallowconnectiontoexternalsystems.
Thereareseveralprogrammablelimitvaluesforspeedmonitoring(e.
g.
engineslowdown,shutdown).
Thedevicecanbeeasilyadjustedviathebuttonsandintegrateddisplay.
ANORIMETER3analogueindicator(roundorsquare)withavol-tageorcurrentinputisconnectedtotheNORISPEED(variousversionsarepossible;seetableentitledTechnicalreference").
Theindicatorshowsthespeedoftheshaft.
Ifaspeedlimitvalueisrequired,itcanbeindicatedbyanadditionalstatusLEDontheindicatororbymeansofaflashingpointer.
Thescalecanbede-signedforthepointertomoveeithertotherightortotheleft.
ProductReferencedatasheetSpeedpickupNADS3DB-NADS3MultifunctionaldeviceFMN6DB-FMN6AnalogueindicatorNIx3-.
.
.
-U1AnalogueindicatorNIx3-.
.
.
-U2AnalogueindicatorNIx3-.
.
.
-I1AnalogueindicatorNIx3-.
.
.
-I2DB-NIR3(round)DB-NIQ3(square)TechnicalreferenceSolutionHNADS3NIx3-.
.
.
-U1/I1/I2FMN6Tap-offpointalsopossibleatQ2SupplyvoltageIlluminationcontrol(eitherpolarity)Upto10devicescanbeconnectedperQoutput12345678+UB-UBNADS3NIR3+(BN)-(GN)Q1(WH)12346785Relay(BK)Q2(YE)18ConnectiondiagramforsolutionH,examplescenarioinvolvingtheNADS3,FMN6andNIR3Contactlessspeedmeasurementwithone1-channelsensor,typeFAH11orFAJ1,optionallyavailablewithadditionalanaloguespeedsignalsand/orswitchingpointsforaspeedmonitoringfunctionStandard:FAJ11orFAH11speedsensor+analogueindicator(roundorsquare)OptionI:FAJ11orFAH11speedsensor+analogueindicator(roundorsquare)+measuringtransducerOptionII:FAJ11orFAH11speedsensor+analogueindicator(roundorsquare)+limitvalueswitchDescriptionofsystemTheFAH11andFAJ11contactlessspeedsensorseitherdetectthespeedviaapulseband(seepage7,Fig.
1.
2)orviaagear-wheel/flywheel(seepage7,Fig.
2.
1).
Thespeedsensorsemitasquarewavesignalattheiroutputs,thefrequencyofwhichisproportionaltothespeed.
TheoutputsignalfromthesensorsisconnectedtoaNORIMETER3analogueindicatorfeaturingafrequencyinput.
Variousversi-onsarepossible;seetableentitledTechnicalreference".
Theindicatorshowsthespeedoftheshaft.
Ifaspeedlimitvalueisrequired,itcanbeindicatedbyanadditionalstatusLEDontheindicatororbymeansofaflashingpointer.
Thescalecanbedesignedforthepointertomoveeithertotherightortotheleft.
OptionI:Ifoneormoreanaloguespeedsignalsarerequiredinadditiontothespeedindicationfunction(e.
g.
foracontroller),extraVF5measuringtransducerswithafrequencymeasurementinputcanbeconnectedtothesensor.
Thesemeasuringtransdu-cersprovidestandardisedfrequency-dependentanalogueout-putsignals(0.
.
.
10V,2.
.
.
10V,0.
.
.
20mA,4.
.
.
20mA).
TechnicalreferenceOptionII:Ifadditionalswitchingpointsarealsorequired,e.
g.
forautomaticspeedmonitoring(engineslowdown,shutdownetc.
),additionalRF5limitvalueswitcheswithafrequencymeasure-mentinputcanbeconnectedtothesensor.
Eachoftheselimitvalueswitchescanbeusedtosetafreelyselectableswitchingpointwithinthespecifiedspeedrange.
Naturally,anyofthedeviceslistedunderoptionsIandIIcanbecombinedwithoneanother.
Itisalsopossibletousemultiplein-dicators.
Atotaloftendevices(i.
e.
anycombinationofindicators,Tap-offpointalsopossibleatQ2ProductReferencedatasheetSpeedsensorFAH11DB-FAH11SpeedsensorFAJ11DB-FAJ11AnalogueindicatorNIR3-.
.
.
-F1DB-NIR3(round)AnalogueindicatorNIQ3-.
.
.
-F1DB-NIQ3(square)MeasuringtransducerVF5DB-VF5LimitvalueswitchRF5DB-RF5SolutionISolutionIOptionI:OptionII:FAH11/FAJ11NIx3-.
.
.
-F1VF5+RI5RF5SupplyvoltageIlluminationcontrol(eitherpolarity)Out2canbeconnectedinthesameway.
Illuminationcontrol(eitherpolarity)AnticlockwiseClockwiseNominalspeedfiringspeedOverspeedStatusNIR3FAH11/FAJ11+UB-UBQ1(WH)+(BN)-(GN)567125673412OutputN/ON/COutput+_+_mA+_Q+_Q+_3412345678NIx3VF5RF5RF5VF519measuringtransducersandswitchingdevices)maybeconnec-tedtoeachchannelofoneNADS3.
However,thenumberofcon-necteddevicesmaybesubjecttorestrictionsinindividualcasesifthelineistoolongandtherearehighlevelsofinterference.
ConnectiondiagramforsolutionI,examplescenarioinvolvingtheFAH11/FAJ11,VF500orRF5andNIR3OptionIIOptionIStandardContactlessspeedmeasurementwithone1-channelsensor,typeFAH11orFAJ11,withmultipleoutputs,speedmonitoringplusslipandoffsetmeasurementStandard:FAJ11orFAH11speedsensor+multifunctionaldevice+analogueindicator(roundorsquare)DescriptionofsystemTheFAH11andFAJ11contactlessspeedsensorseitherdetectthespeedviaapulseband(seepage7,Fig.
1.
2)orviaagear-wheel/flywheel(seepage7,Fig.
2.
1).
Thespeedsensorsemitasquarewavesignalattheiroutputs,thefrequencyofwhichisproportionaltothespeed.
TheoutputsignalfromthesensorisfedintotheNORISPEEDFMN6multifunctionaldevice,whereitisevaluated.
Thedeviceisfreelyparametrisableanddetectsthespeedonthebasisofthesignalfrequency.
Themultifunctionaldevicealsoofferssomeotherhandyfunctions:Foreachfrequencymeasurementchannel,thereisanintegratedmeasuringtransducerwithstandardisedfrequency-dependentanalogueoutputsignals(0.
.
.
5V,0…10V,2.
.
.
10V,+/-5V,+/-10V,0.
.
.
20mAor4.
.
.
20mA)toallowconnectiontoexternalsystems.
Thereareseveralprogrammablelimitvaluesforspeedmoni-Technicalreferencetoring(e.
g.
engineslowdown,shutdown).
Thedevicecanbeeasilyadjustedviathebuttonsandintegrateddisplay.
ProductReferencedatasheetSpeedsensorFAH11DB-FAH11SpeedsensorFAJ11DB-FAJ11MultifunctionaldeviceFMN6DB-FMN6AnalogueindicatorNIx3-.
.
.
-U1AnalogueindicatorNIx3-.
.
.
-U2AnalogueindicatorNIx3-.
.
.
-I1AnalogueindicatorNIx3-.
.
.
-I2DB-NIR3(round)DB-NIQ3(square)SolutionJSolutionJFAH11/FAJ11NIx3-.
.
.
-U1/I1/I2FMN6SupplyvoltageIlluminationcontrol(eitherpolarity)Upto10devicescanbeconnectedperQoutput12345678+UB-UBNIR3+(BN)-(GN)Q1(WH)12346785FAH11/FAJ1120ConnectiondiagramforsolutionJ,examplescenarioinvolvingtheFAH11/FAJ11,FMN6andNIR3ANORIMETER3analogueindicator(roundorsquare)withavol-tageorcurrentinputisconnectedtotheNORISPEED(variousversionsarepossible;seetableentitledTechnicalreference").
Theindicatorshowsthespeedoftheshaft.
Ifaspeedlimitvalueisrequired,itcanbeindicatedbyanadditionalstatusLEDontheindicatororbymeansofaflashingpointer.
Thescalecanbedesignedforthepointertomoveeithertotherightortotheleft.
SupplyvoltageIlluminationcontrol(eitherpolarity)Out2canbeconnectedinthesameway.
Illuminationcontrol(eitherpolarity)AnticlockwiseClockwiseNominalspeedfiringspeedOverspeedStatus21insideenclosuresSpeedmeasurementsystemsGDMAenclosedspeedmeasurementsystemscomprisetwospeedpickups,oneormoreindicatorsplusafullyprewiredevaluationelectronicsunit,whichisinstalledinsideacontrolcabinet.
Wecanalsosupplythecomponentsindividuallyonrequest.
Inthiscase,thecustomerisresponsibleforcarryingouttheinstallationandwiringwork.
Thesystemsareavailableinthreedifferentversionsandcanbeusedwithreversingaswellasnon-reversingdrives.
Thesameenclosureisusedforallversions(GDMA1-1,GDMA2-1andGDMA3-1).
Theversionsdifferintermsoftheevaluationelectronicsunitthatisinstalled.
Theindividualcomponentsaremountedontop-hatrailsinsidetheenclosure.
Thecableoutletislocatedinthebaseoftheenclosure.
Pleasenotethatcertaininstalledsystemcomponentsdonotcurrentlyhaveapprovalsfromshipbuildingclassificationsocieties.
300mm260mm120mm200mmBottom8mmGDMA1-1enclosedspeedmeasurementsystemwithonemeasuringtransducerandadirectionofrotationswitchTopDesignationComponent-A1DirectionofrotationswitchDV40(noshipbuildingapproval)-A2MeasuringtransducerVF5-K1,-K2RelayN010-206Bottomview220mm22GDMA1-1circuitdiagramTodetectthedirectionofrotation,itisnecessarythatthepickup2isoffset(d)againstthefirstoneby1/4toothpitch(t).
Example:t=20mm,1/4t=5mmd=5mmIftheindicationwithdirectionofrotationisinwrongway,exchangetheconnection(+)and(-)fromtheindicators.
!
Imaxisforallindicators!
23300mm260mm120mm200mmBottom8mmGDMA2-1enclosedspeedmeasurementsystemwithonemeasuringtransducer,adirectionofrotationswitchandtwolimitvalueswitches(zero-speedswitch,lockswitch)TopBottomview220mmDesignationComponent-A1DirectionofrotationswitchDV40(noshipbuildingapproval)-A2MeasuringtransducerVF5-A3LimitvalueswitchRF5.
.
.
-R2.
.
.
-A4LimitvalueswitchRG51-A-K1,-K2,-K3RelayN010-206.
.
.
24GDMA2-1circuitdiagram(part1/2)GDMA2-1circuitdiagram(part2/2)Todetectthedirectionofrotation,itisnecessarythatthepickup2isoffset(d)againstthefirstoneby1/4toothpitch(t).
Example:t=20mm,1/4t=5mmd=5mmIftheindicationwithdirectionofrotationisinwrongway,exchangetheconnection(+)and(-)fromtheindicators.
!
Imaxisforallindicators!
RotationDirectionBinary/Max5AZeroSpeedBinary/Max5ASpeed=0Connectiondiagrammincaseofusingatwinpickup25300mm260mm120mm200mmBottom8mmGDMA3-1enclosedspeedmeasurementsystemwithonemeasuringtransducer,adirectionofrotationswitchandthreelimitvalueswitches(zero-speedswitch,lockswitch,speedswitch)TopBottomview220mmDesignationComponent-A1DirectionofrotationswitchDV40(noshipbuildingapproval)-A2MeasuringtransducerVF5-A3LimitvalueswitchRF5.
.
.
-R2-.
.
.
-A4LimitvalueswitchRG51-A-A5LimitvalueswitchRF5.
.
.
-R2-K1,-K2,-K3,-K4,-K5RelayN010-20626GDMA3-1circuitdiagram(part1/3)GDMA3-1circuitdiagram(part2/3)Todetectthedirectionofrotation,itisnecessarythatthepickup2isoffset(d)againstthefirstoneby1/4toothpitch(t).
Example:t=20mm,1/4t=5mmd=5mmIftheindicationwithdirectionofrotationisinwrongway,exchangetheconnection(+)and(-)fromtheindicators.
!
Imaxisforallindicators!
Connectiondiagrammincaseofusingatwinpickup27GDMA3-1circuitdiagram(part3/3)RotationDirectionBinary/Max5AZeroSpeedBinary/Max5ASwitchSpeedBinary/Max5AGE14RQ+-PRQ4+-5GE12141228withtachogeneratorsSpeedmeasurementsystemsSpeedpickupswithtachogeneratorsandnosupplyvoltageOnsomesystems,thereisnopowersupplyavailableforspeedpickupsatthemeasuringpoint.
Insuchcases,tachogeneratorsareusedbecausetheydonotrequireasupplyvoltage.
Onceagain,thisapplicationallowsyoutocreatetwokindsofspeedmeasurementsystem:thosewithandthosewithoutarotationaldirectiondetectionfunction.
Wherenecessary,limitmonitoring(e.
g.
ignitionspeed,overspeed)canbeimplementedforbothkindsofsystembyusinglimitvalueswitches(e.
g.
typeRW5).
CombinationsofdevicesforspeedmeasurementsystemswithoutrotationaldirectiondetectionThefollowingtypesoftachogeneratoroutputanACvoltagesig-nal:GE121,GE122,GE120,GE14-09,GE14-10andGE14-91.
Theycanbeusedinconjunctionwithmoving-coilindicatorswithnosupplyvoltage,e.
g.
typesPRQ96,RQ96orR60.
CombinationsofdevicesforspeedmeasurementsystemswithrotationaldirectiondetectionOurGE1214tachogeneratorsfeatureanintegratedrotationaldi-rectiondetectionfunction.
Theycanbeusedinconjunctionwithmoving-coilindicatorswithnosupplyvoltage,e.
g.
typePRQ96.
Connectiondiagram,examplescenarioinvolvingGE14.
.
.
undRQ96Connectiondiagram,examplescenarioinvolvingGE1214.
.
.
undPRQ96SchraubklemmenACvoltageforfurtherprocessing(e.
g.
limitvalueswitch)ModernisationofexistingsystemsWealsomoderniseexistingspeedmeasurementsystemsbyaddingourcomponents.
Tachogeneratorsthatarealreadyinusecanbeconnectedtoourmodernelectroniccomponents.
Iflinedriversareinstalled,evencoilsensorswithanACvoltagesignalcanbeusedtogetherwithourevaluationelectronics.
Thesesensorscanalsobeconnecteddirectlytoacompatibleindicatorfeaturingafrequencyinput(typesNIx3-.
.
.
-F2orNIx3-.
.
.
-FD2).
Similarly,analogueindicatorsfromtheNORIMETER3productfamilycanbeusedinexistingsystems.
Tachogeneratorsareoftenstillpresent,forinstance.
TypeGE1214can,forexample,beusedwithindicatorsoftypeNIx3-.
.
.
-G0.
SolutionKGE14/GE12xRQ096SolutionLGE1214PRQ096+/-polarityaccordingtorotationaldirectionACvoltageforfurtherprocessing(e.
g.
limitvalueswitch)29PulsebandsforshaftsAccessoriesPulsebandsasasubstituteforgearwheelsPulsebandsareastraightforwardsolutionforcontactlesssensingincaseswherenogearwheelcanbeaccessedforthispurpose.
Thepulsebandisplacedaroundtheshaftandfastenedwithatightener.
Acontactlessspeedsensorisalignedwiththepulsebandbymeansofamountingdevice(seepages31and32)andsensesthewelded-onpulseblocks.
PropertiesofpulsebandsPulsebandscanbesuppliedforshaftdiametersof50mmto635mm.
Inthecaseoflargerdiameters,splitpulsebandscanbeused.
Theshaftdiameterdetermineshowmanywelded-onpulseblocksthereare.
Toensurethatthepitchiseven(particularlyinthevici-nityofthetightener),youmustspecifytheshaftdiameterprecisely(+/-0.
3mm)whenplacingyourorder.
Themaximumpermissiblecircumferentialvelocityis15m/s.
Atvelocitiesof10m/sorabove,acovermustbeinstalledforsafetyreasons.
PulsebandIB1-1forshaftdiametersof150.
.
.
635mmCheeseheadscrewM4x45Pulseblock10x8x30mmLargestdistance20mm10mm8mm9mmmax.
2000mm50mmSpringwasherA4.
3WasherA4.
3Bolt6x50mm30mmHexagonnutM4Drawingnumber:42.
282.
5PulsebandIB3-1forshaftdiametersof50.
.
.
150mmmax.
472mmFastenedwithhoseclipPulseblock4x4x20mm50mmD/2+20mmDrawingnumber:42.
282.
6TightenerIB1-11splitpulsebandforshaftdiametersof636.
.
.
1272mm(D+1)x∏-2(max.
4000mm)8mm10mm9mm50mmBolt6x50mm30mmtDrawingnumber:42.
282.
40130IIB3-3pulsebandforshaftdiametersof50.
.
.
150mmTheIB3-3pulsebandisadoublepulseband,whichcanbeusedfordualspeedmeasurements(backup)orforspeedmeasurementplusrotationaldirectiondetection.
Toenablespeedmeasurementplusrotationaldirectiondetection,two1-channelspeedsensorsarealignedwiththedoublepulsebandbymeansofamountingdevice(seepage32)sothattwooutputsignalsaregeneratedwithaphaseoffsetof90°betweenthem.
max.
472mmPulseblock4x4x20mmD/2+20mmFastenedwithhoseclip75mmDrawingnumber:42.
282.
62HexagonnutM4PulseblockPulseblockSurfaceFe/Zn25cBDIN50962TightenerSpringwasherA4.
3WasherA4.
331BracketsforspeedpickupsAccessoriesMountingexampleinvolvingmountingdeviceHW1-63orHW1-125,consistingofanglebracketWI31-1andholderHA8-1orHA8-2plusonespeedsensorTheHW1-…mountingdevicehasbeendevelopedforusewithspeedsensorsinconjunctionwithpulsebandsorgearwheels.
Itisattachedtoanevensurfacedirectlyontheshaft.
Thespeedsensor(e.
g.
FAHZ11)issecuredintheanglebracketbymeansoftwonuts.
Toprotectthespeedpickupfromdamage,thebracketispivot-mountedintheclampingspigotusingalatchingmechanism.
Thismeansthatthepickupandanglebracketcanpivottothesideifaforeignobjectenterstheairgapbetweentheshaftandpickup.
Inaddition,theclampingdeviceenablesthespeedsensortobeoptimallyalignedwiththepulseband.
TightenerClampingdevice80mm1.
0±0.
5mmAbletopivotinbothdirectionsHW1-63=63mmHW1-125=125mm36mmDuringinstallation,itisimportanttoensurethatthespeedsen-sorpointstothecentreofthepropellershaft.
Theclampingspi-gotoftheanglebracketcanberotatedtofacilitatethis.
Oncetheinstallationpositionofthespeedsensorhasbeensetviatheclampingdevice,itmustfixed.
ShaftradiusD/2+105bis130mmD100mm80mm11mm14mm40mm5mm46mm1mm50mm30mmAttention:Forsafetyreasons,acoverisrequiredifthecircumferentialvelocityexceeds10m/s.
Drawingnumber:42.
282.
21MountingdevicetypeHW1-63HW1-12532MountingexampleinvolvingmountingdeviceHW1-.
.
.
(induplicate),consistingofanglebracketWI31-1andholderHA8-1orFU9-1plustwospeedsensorsfordirectionofrotationdetectionTheHW1-…mountingdevicehasbeendevelopedforusewithspeedsensorsinconjunctionwithpulsebandsorgearwheels.
Itisattachedtoanevensurfacedirectlyontheshaftsothatthepulsebandorgearwheelcanbescannedbysensors.
Bothspeedsensors(e.
g.
2xFAJ11)areattachedtothebracketbymeansofnuts.
Inorderfortherotationaldirectiontobedetected,attentionmustbepaidtotheinstallationdifferenced":Thesecondsensorisinstalledsothatthereisanoffsetof1/4toothpitchtbetweenitandthefirstsensor.
Thisresultsina90°phaseshiftbetweenthetwooutputsignals(seeexampleinfigurebelow).
Thebracketispivot-mountedintheclampingspigotusingalatchingmechanism.
Thismeansthatthepickupandanglebracketcanpivottothesideifaforeignobjectenterstheairgapbetweentheshaftandpickup.
TightenerAbletopivotinbothdirectionst80mm36mmHA=shaftdiameterD+210bis260mmClampingdeviceHolderHA8-1(H=63mm)FU9-1(H=125mm)Theinstallationdifferenced"dependsontheshaftdiameterD"andthenumberofpulseblocksz"d100mm80mm14mm40mm1mm50mm30mm5mm46mm11mmAnglebracketWI31-11.
0±0.
5mmDrawingnumber:42.
282.
22Dα=90zd=Az90ztan.
MountingdevicetypeHW1-63HW1-1253318mm2mm35mm50mm52mm100-0.
2mm7mm11mm29mm12mm4-0.
5mmR14mm2mm40mmH11R248mmH36+0.
5mm20mm40-0.
5mm20mm40-0,5mmM6R14mm91mm70mm80±0.
2mm32mm15±0.
2mm5mmR2R5.
5R3R10HolderHA8-1fortachogenerators(drawingFU9-1onrequest)Drawingnumber:HA8-1DrawingFU9-1onrequestHoldertypeHeightHHA8-163mmFU9-1100-125mmBoltBOSCM83410H6mmFrictionwheeltypeRR99FrictionwheelforshaftsAccessoriesFrictionwheelsareattachedtotheshaftandthespeedispassedontothemmechanically.
Thespeedisthenrecordedusingaspeedpickup(e.
g.
typeNADS3),thepinofwhichissecuredinthefrictionwheelbymeansofaclampingscrewconnection.
Africtionwheelcanonlybeusediftheshaftisfreelyaccessible.
23mmDrawingnumber:55.
311.
D=99mm35RubbercouplingandattachmentAccessoriesSpeedpickupsareconnectedtotheshaftbymeansofarubbercouplingandanattachment.
sd2adLL+13mm10mmbd160°ScrewLockingplateScrewsecuredbyapunchmark60°t3t2t1d4d2dDdLd2saScrewCoupl.
d1bOrderno.
M1224181411M3x10DIN63Nr.
2103,2AN2-2GShaftDdd2d4t1t2t3von22.
.
.
30mmM8128,42516,55,5+0,5über30.
.
.
38mmM12181338268+1über38.
.
.
50mmM162417453210+1über50.
.
.
85mmM202921533912+1über85.
.
.
130M243525634814+1AttachmentwithlockingplateRubbercouplingKG2-1Drawingnumber:53.
001Drawingnumber:53.
04350mm22.
5mm22.
5mmM410F7mm10F7mmScrewtoDIN55320mm21mmM4RubberwithShoreAhardnessParallelpin2.
9mmm6toDIN7StainlesssteelwheelbushingSoitcanreceivetheupperattachments,themachineshaftheadmustbeprovidedwiththerelevantcentreholeinaccordancewithDIN332,sheet2.
TechnicaldataforLV3/LV31linedriversPrincipleNoisesignalsat90dBarefilteredoutbyasymmetricalinput.
Linedriversincreasethesignalby20dB.
ConnectionIfethecableshieldingisconnectedtotheenclosureofthepickup,connectioAisnotrequired.
MountingTS32mountingrailtoDINEN50035orTS35top-hatrailtoDINEN50022DimensionsSeeillustrationaboveInputACvoltageorpulses:LV3:20mV.
.
.
20V,Ri=10kLV31:600mV.
.
.
60V,Ri=60kOverloadcapacity:2.
5xOutputSquarewavesignalSupplyvoltageUS10.
.
.
32VDC,max.
5%harmoniccontent(fromNORISspeedmeasuringtransducer)SwitchingvoltageCorrespondsroughlytoUSMax.
switchingcurrent50mAFrequencyrange1Hzto10kHzVoltagepeaksMax.
2ms,2.
5xUSCurrentconsumption20mA+switchingcurrentOperatingtempera-ture0.
.
.
+70°CStoragetemperature-45.
.
.
+85°CClimatictestIEC60068-2-30Vibrationrating10gIEC60068-2-6,characteristiccurve2(10.
.
.
100Hz)EnclosureFlame-retardantgreenMakrolonDegreeofprotectionIP20,terminalsIP00Weight<100g36LinedriversAccessoriesLinedriversareusedtoboostthelevelofasignalprovidedbyaspeedpickuportachogeneratorandtoproduceadefinedsignalshape(squarewave)throughpulseshaping.
Thisresultsinahighersignal-to-noiseratioduringtransmission,therebyincreasingthetransmissionrange.
LV3.
.
.
+-QFA.
.
.
A70mm61mm17.
5mm134567ContuctstudsA6,3x0,846mm37concerningspeedmeasurementsystemsMiscellaneousformulaeandinformationTheformulaebelowareintendedtoassistwiththeprocessofdimensioningthespeedmeasurementsystem.
F=60n·pF=60n·zF=frequencyin[Hz];n=max.
speedin[rpm],z=numberofteeth,p=numberofpulses,k=numberofpulseblocksModulesizeandcircumferentialvelocityM=zdtM=modulesize;dt=pitchcirclediameterinmm,z=numberofteeth,p=pitch,V=circumferentialvelocityin[m/s]V=60x1000d·π·nCalculatingthenumberofpulseblocksforthevariouspulsebandsForpulsebandIB3-1forshaftdiametersof50.
.
.
150mmK=9dW·πOptimumnumberofpulseblocksforpulsebandForpulsebandIB1-1forshaftdiameters150.
.
.
636mmOptimumnumberofpulseblocksforpulsebandK=30dW·πMaximumnumberofpulseblocksforpulsebandK=20dW·πForpulsebandIB1-11forshaftdiameters636.
.
.
1272mmIftheshaftdiameterexceeds636mm,splitpulsebandIB1-11isused.
OptimumnumberofpulseblocksforpulsebandK=30dW·πMaximumnumberofpulseblocksforpulsebandK=20dW·πWeproducethepulsebandsaccordingtocustomerrequirementssothattheyhavetheappropriatenumberofpulseblocks.
Ifthelengthexceeds635mm,splitpulsebandsareused.
Ifthereisanunevennumberofpulseblocks,twopulsebandswithdifferentlengthsarepro-duced.
Ifpossible,anevennumberofpulseblocksshouldalwaysbeselectedand,likewise,twopulsebandsofthesamelength.
OrderinginformationMountingsituation:SpaceavailableAccessoriesrequiredWhataccessoriesdoyouhavealreadyOneortworotationaldirectionstobeindicated(rotationaldirectiondetection)SpeedofshaftDiameterofshaftHowmanyspeedindicatorsarerequiredSizeofspeedindicatorsAreotherspeed-dependentcontactsrequired(e.
g.
overspeed,ignitionspeed)Ifthereisagearwheel:NumberofteethModulesizeWhatmaterialisthegearwheelmadeofApprovalsClassificationFrequency,speed,numberofteethItisimportanttospecifythefrequencyforthepurposeofcalibratingthemeasuringtransducersandlimitvalueswitchesorsothatthemultifunctionaldevicecanbeprogrammed.
Thefrequencycanbecalculatedwiththefollowingformulae:If2-channelsensorsareused,themodulesizemustbeidentified.
Themodulesizedetermineshowthetwosensorelementsarepositi-onedinsidethesensoratthefactorysothatthereisaphaseoffsetof90°betweenthetwooutputsignals.
Atcircumferentialvelocitiesof10m/sorabove,safetyprecautionsmustbetaken(protectivecoveroverpulseband).
M=πpsep=s+edtF=60n·k38NotesPR-DMA-EN_V01.
00-01/2014-Errorsandomissionsexcepted.
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