gefran TPD32-EV-...-4B - Self Tuning of the Speed Regulator

—————— Instruction manual ——————
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5.3.5.2 Self tuning of the speed regulator
Speed Self tuningidentiesthetotalInertiavalueatthemotorshaft(Kg*m
2
),thefrictionvalue(orLosscom-
pensation)inN*mandcomputestheProportionalandIntegralgainsofthespeedregulator.
Warning ! Thisprocedurerequiresfreerotationofthemotorshaftcoupledtotheload.Start/Stopcom-
mandisdisregarded,thereforeitcannotbeusedondriveswithlimitedtravel.
Caution ! ThetestisperformedusingthetorquelimitvaluesetinTest T curr limparameter.Thetorque
isappliedstepwise,withnoramp(prole),thereforethemechanicaltransmissionmustnot
havesignicantbacklash,anditmustbecompatiblewithoperationatthetorquelimitset
in Test T curr limparameter.Theusercanreducethetorquelimittoasuitablevaluevia
theTestTcurrlimparameter.
note ! - Applicationwherethesysteminertiacoupledtothemotorshaftismuchhigherthan 
 themotorinertiavalue,increasetheTest T curr limparametertoavoid“Timeout”error.
- Thisprocedureisnotsuitableforusewith“hoist”or“elevator”drives.
PreliminaryoperationbeforethecorrectexecutionoftheSpeedselftuningprocedureistheappropriatecalcula-
tionoftheTorque constparameter.
Setthemotornameplatedataparametrs:
Motor max speed Setthemaximummotorspeedvalue
Flux weak speed Motor max speed percentagewheretheuxweakeningrangestarts.(Crossoverpoint)
T Current limit +/- Setthenominalmotorcurrentvalue
Motor nom ux SettheMotornomuxinAmps.
Max out voltage Setthemaximumarmaturevoltagevalue
Withspeedregulatorselftunigperformed,theaboveparametersvaluecanbechangedaccordingtotheapplica-
tionwithoutTorque constparametermodication.
- Setthemotorshaftdirection:ForwardorReverseviatheFwd-Rev spd tuneparameter
- SelectthetorquecurrentvaluetobeusedduringthetestviatheTest T curr limparameter
TO EXECUTE SELF TUNING,enterSTARTUP\Selftuningmenu.
- Startexecutionbyentering“Start”.
TheprocedureperformsanaccelerationtestatthetorquelimitvaluesetinTest T curr lim parameteruptoa
speedthreshold,thenadecelerationtestwithnotorqueapplied(coasting)downtozerospeed.
Thespeedthresholdis33%ofthelowestinthefollowing:
- Speed base value
- Speed max pos or Speed max neg accordingtodirectionofrotation.
Theproceduremaytakeafewminutes,dependingoninertiaandfrictionvalues.
Basedoninertiaandfrictionvalues,thedrivewillcalculatethespeedloopgains(Speed PandSpeed Ipa-
rameters).
Ifmanualadjustmentarerequired(incaseofvibrations,etc.)theseshouldbeappliedtotheintegralgainSpeed I
[%].Incaseself-tuningofspeedregulatorisnotsatisfactory,refertomanualtuningprocedureinsection5.3.6.