gefran TPD32-EV-...-4B - Page 213

—————— Instruction manual ——————
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 4)
 Forthemax.fullscalevalues,refertoparagraph6.16.3PID function
5)
 Withascalingfactorof1.0andTune value inpXX=1,10Vor20mAcorrespond
to Speed ratio=20000.
Tune value inp XX Finetuningoftheinputwhenthemax.signaldoesnotexactlycorrespondtotherated
value.Exampleseebelow.
Auto tune inp XX Automaticnetuningoftheinput.Ifthiscommandisgiven,Tune value inp XXisauto-
maticallyselectedsothattheinputsignalpresentcorrespondstothemax.variablevalue,
suchastheSpeed base value.Twoconditionsarenecessaryforautomaticnetuning:
  Inputvoltagegreaterthan1Vorinputcurrentgreaterthan2mA
  Positivepolarity.Thevaluefoundisautomaticallysetfortheotherdirectionfor
theTPD32-EV...4Bconverters.
Note:Theautomaticallycalculatedvaluecan,ifnecessary,bemodiedmanually
viaTune value inp XX.
Input X lter FilteringofanaloginputXmeasurement.
Offset inp XX Iftheanalogsignalhasanoffsetorifthevariableassignedtotheinputalreadyhasavalue
althoughthereisnoinputsignalpresent,thiscanbecompensatedviatheOffset inp XX.
Theconverterisfactorysetsothatanalogvaluesas+10V/-10V.
Witheldbusoperation(Option),theInput XX signparameterspeciesthesignfortherotationdirection.
Ifaparameterisalreadyinternallyassigned(e.g.ifSpeed ref 1isautomaticallyconnectedwiththerampoutput
whentherampisenabled),itwillnolongerappearinthelistofparametersthatcanbeassignedtoananaloginput.
TheInput XX sign +andInput sign -parameterscannotbeaddressedviatheserialinterface.
Example 1: Thespeedreferencevalueofadriveisdenedwithanexternalvoltageof5V.Withthis
valuethedriveshouldreachthemax.allowedspeed(setviaSped base value).
 AsparameterScale input XXthescalingfactor2isentered(10V:5V)
Example 2: Anexternalanalogreferencereachesonlymax.9.8Vinsteadof10V.
 AsparameterTune value inp XX1.020isentered(10V:9.8V).
 ThesameresultwouldhavebeenobtainedviatheAuto tune inp XXfunction.Theap-
propriateparameterswouldhavetobeenteredinthemenuofthekeypad.Themaximum
possibleanalogvalue(inthiscase9.8V)wouldhavetobepresentattheterminalwith
apositivepolarity.Thekeypadwilladjustthe“Tunevalue”automaticallyiftheEkey
ispressed.