OptidriveODP‐2UserGuideRevision1.30
www.invertekdrives.com
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8 ExtendedParameters
8.3. ParameterGroup4–HighPerformanceMotorControl
Incorrectadjustmentofparametersinmenugroup4cancauseunexpectedbehaviourofthemotorandanyconnected
machinery.Itisrecommendedthattheseparametersareonlyadjus tedbyexperiencedusers.
Par ParameterName Minimum Maximum Default Units
P4‐01 MotorControlMode 0 2 2 ‐
Selectsthemotorcontrolmethod.Anautotunemustbeperformedifsetting0or1isused.
0:SpeedControlwithTorqueLimit(vector)
1:TorqueControlwithSpeedLimit(vector)
2:SpeedControl(EnhancedV/F)
P4‐02 MotorParameterAuto‐tuneEnable 0 1 0 ‐
Whensetto1,thedriveimmediatelycarriesoutanon‐rotatingautotunetomeasurethemotorparametersforoptimumcontrol
andefficiency.Followingcompletionoftheautotune,theparameterautomaticallyreturnsto0.
P4‐03 VectorSpeedControllerProportionalGain 0.1 400.0 25.0 %
SetstheproportionalgainvalueforthespeedcontrollerwhenoperatinginVectorSpeedorVectorTorquemotorcontrolmodes
(P4‐01=0or1).Highervaluesprovidebetteroutputfrequencyregulationandresponse.Toohighavaluecancauseinstabilityor
evenovercurrenttrips.Forapplicationsrequiringbestpo
ssibleperformance,thevalueshouldbeadjustedtosuittheconnected
loadbygraduallyincreasingthevalueandmonitoringtheactualoutputspeedoftheloaduntiltherequireddynamicbehaviour
isachievedwithlittleornoovershootwheretheoutputspeedexceedsthesetpoint.
Ingeneral,higherfrictionloadscantolerat
ehighervaluesofproportionalgain,andhighinertia,lowfrictionloadsmayrequire
thegaintobereduced.
P4‐04 VectorSpeedControllerIntegralTimeConstant 0.000 1.000 0.050 s
Setstheintegraltimeforthespeedcontroller.Smallervaluesprovidea fasterresponseinreactiontomotorloadchanges,atthe
riskofintroducinginstability.Forbestdynamicperformance,thevalueshouldbeadjustedtosuittheconnectedload.
P4‐05 MotorPowerFactorCosØ 0.50 0.99 ‐ ‐
WhenoperatinginVectorSpeedorVectorTorquemotorcontrolmodes,thisparametermustbesettothemotornameplate
powerfactor
P4‐06 TorqueControlReference/LimitSource 0 5 0 ‐
WhenP4‐01=0,thisparameterdefinesthesourceforthemaximumoutputtorquelimit.
WhenP4‐01=1,thisparameterdefinesthesourceforthetorquereference(setpoint).
0:FixedDigital.Thetorquecontrollerreference/limitissetinP4‐07
1:AnalogInput1.Theoutputto
rqueiscontrolledbasedonthesignalappliedtoAnalogInput1,whereby100%inputsignallevel
willresultinthedriveoutputtorquebeinglimitedbythevaluesetinP4‐07.
2:AnalogInput2.TheoutputtorqueiscontrolledbasedonthesignalappliedtoAnalogInput2,whe
reby100%inputsignallevel
willresultinthedriveoutputtorquebeinglimitedbythevaluesetinP4‐07.
3:Fieldbus.TheoutputtorqueiscontrolledbasedonthesignalfromthecommunicationsFieldbus,whereby100%inputsignal
levelwillresultinthedriveoutputtorquebeingli
mitedbythevaluesetinP4‐07.
4:Master/Slave.TheoutputtorqueiscontrolledbasedonthesignalfromtheInvertekMaster/Slave,whereby100%input
signallevelwillresultinthedriveoutputtorquebeinglimitedbythevaluesetinP4‐07.
5:PIDCo
ntrollerOutput.TheoutputtorqueiscontrolledbasedontheoutputofthePIDcontroller,whereby100%inputsignal
levelwillresultinthedriveoutputtorquebeinglimitedbythevaluesetinP4‐07.
P4‐07 MaximumMotoringTorqueLimit/CurrentLimit P4‐08 500.0 150.0 %
WhenoperatinginVectorSpeedorVectorTorquemotorcontrolmodes(P4‐01=0or1),thisparameterdefinesthemaximum
torquelimitorreferenceusedbythedriveinconjunctionwithP4‐06.
WhenoperatinginV/FMode(P4‐01=2),thisparameterdefinesthemaximumoutputcurrentthedrivewi
llprovidetothe
motorbeforereducingtheoutputfrequencytoattempttolimitthecurrent.
P4‐08 MinimumMotoringTorqueLimit 0.0 P4‐07 0.0 %
ActiveonlyinVectorSpeedorVectorTorquemotorcontrolmodes(P4‐01=0or1).Setsaminimumtorquelimit,wherebythe
whentheOptidriveisenabled,itwillalwaysattempttomaintainthistorqueonthemotoratalltimeswhilstoperating.
NOTE:Thisparametershouldbeusedwithextremecare,asthedriveoutputfrequencywillincreasetoachievethetorque
level,andmayexceedtheselectedspeedreference
P4‐09 GeneratorModeMax.TorqueLimit(MaximumRegenerativeTorque) 0.0 200.0 100.0 %
ActiveonlyinVectorSpeedorVectorTorquemotorcontrolmodes(P4‐01=0or1).Setsthemaximumregeneratingtorque
allowedbytheOptidrive
P4‐10 V/FCharacteristicAdjustmentFrequency 0.0 P1‐09 0.0 Hz
WhenoperatinginV/Fmode(P4‐01=2),thispar ameterinconjunctionwithP4‐11setsafrequencypointatwhichthevoltage
setinP4‐11isappliedtothemotor.Caremustbetakentoavoidoverheatinganddamagingthemotorwhenusingthisfeature.
P4‐11 V/FCharacteristicAdjustmentVoltage 0 P1‐07 0 V
UsedinconjunctionwithparameterP4‐10
P4‐12 ThermalOverloadValueRetention 0 1 0 ‐
0:Disabled.
1:Enabled.AllOptidrivesfeatureelectronicthermaloverloadprotectionfortheconnectedmotor,designedtoprotectthe
motoragainstdamage.Aninternaloverloadaccumulatormonitorsthemotoroutputcurrentovertime,andwilltripthedriveif
theusageexceedsthethermallimit.WhenP4‐12isdi
sabled,removingthepowersupplyfromthedriveandre‐applyingwill
resetthevalueoftheaccumulator.WhenP4‐12isenabled,thevalueisretainedduringpoweroff.