gefran TPD32-EV-500 series - Page 296

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PID target AddressoftheparameterwhichcontainsthevaluetobeusedasPIDtarget.Toobtain
therealsettablevalue,itisnecessarytoadd+2000H(8192decimal)totheparameter
number.
PID out scale MatchingfactorofPID output.Itsvaluedependsontheparametertowhichtheregula-
toroutputisaddressed.
ThroughtheparameterPID target itispossibletoselectwhichpointofthedrivewillbeaddressedforoutput
signaloftheregulation.Theselectableparametersarethoseassignedaswritingparameters(WorR/W)indi-
catedintheparaghraph10.2.“List of high-priority parameters’”.Theunitsarethoseindicatedinthenotesat
theendoftheparagraph.
Programmingexampleofthespeedreference1(parameterSpeed ref 1)onPID target:
MenuOPTION
 ————>PID
  ————>PIDtarget
   ————>PIDtarget=8234
PID target mustbesetaccordingtothenumberoftheparametertowhichitwillbeassociated,choosingitfrom
theparagraph10.2.“Listofhigh-priorityparameters’”(Speed ref 1 hasthedecimalnumber42).Toobtainthe
valueitmustbeaddedthedecimalnumber8192(xedoffset):
8192+42=8234.
note: Whentherampfunctionhasbeenenabled,Speedref1willbeautomaticallyprogrammed
onitsoutput.TohaveitavailableitisnecessarytosetparameterEnableramp=disable.
Speed ref 1 willbesetinRPMx4,consideringthatPID output assumesvaluesincludedbetween0....10000,
itisnecessarytosetappropriatelythecalibrationthroughPID out scale.
CalculationofPID out scale:
IfitisnecessarythatPID output,atitsmax.value=10000,correspondsatspeedreference=2000rpmitis
necessarytoset:
PID out scale =(2000x4)/10000=0.8
ItispossibletoreadthesetvalueofSpeed ref 1 intheappropriateparameterofthemenuINPUT VARIABLES
/ Speed ref.
note: ThevalueofPIDoutscalewillbedenedaccordingtothesystemwhichisbeingcontrolled.
Forabetterunderstanding,pleaserefertotheparagraph“Applicationexamples”.