gefran TPD32-EV-...-4B - Page 347

—————— Instruction manual ——————
347
Base omega Valuein[rpm]correspondingtothemaximumangularspeedofthewinder/unwinder
(motorshaftside).
 Vp=πxΦminxωxR
 where:
 Vp=peripheralspeed
Φmin=winderminimumdiameter(mm)
ω=motorangularspeed
 R=reductionratio
ω=Vp/πxΦminxR=400/(3.14x0.1x0.5)=2547rpm
 Baseomega=set2547rpm.
Ref speed thr Linespeeddetectingthresholdin%.
 When“Linespeed”islowerthan“Linespeedthr”thediametercalculationisdisabled.
When“Linespeed”ishigherthanthethreshold,thediametercalculationisenabledwith
aninitialltercorrespondingtoDiam init lterforthetimesetinDiam stdy delay.
AttheendofthistimethelterissettoDiam lter.
 Maximumlinespeed=400m/min.Linespeedthr=5%(thediametercalculationis
automaticallyenabledat20m/min).
Setting of the parameters in the SPEED DEMAND menu
 PARAMETERS
  OPTIONMenu
   ————>Torquewinder
    ————>Speeddemand
Speed demand En Enablingofthespeedreferencecalculation;setEnable
Winder side Selectionofthewinding/unwindingside.Selectiontobecarriedoutonlyifthedigital
inputsarenotset. 0=up, 1=down
W gain Settingofthespeedreferencegainusedfortheloopsaturation.Parametergivenasa
percentageoftheincrease/decreaseoftheangularspeedreference.
W gain=30%(setthisstartingvalue)
W offset Offsetsettingonthespeedreferenceforthewinder/unwinderinitialphasewithastopped
line.Parameterin[rpm].
W offset=50rpm(checkwiththematerial)
Offset acc time Settingoftheinitialphaserampwithastoppedmachine.Parameterin[s].Theacctime
referstotheparameterspeed base value
W target Parameternumberwhichthespeedreferencehastobeaddressedto.Inordertoobtainthe
realnumbertobesetitisnecessarytoadd+2000H(8192decimal)totheparameternumber.
W target:set2asaspeedreference:
  OPTIONMenu
   ————>Torquewinder
    ————>Speeddemand
     ————>Wtarget=8235
 Paragraph10.2.“List of the high priority parameters’ showsthatSpeed ref 2hasthe
decimalnumber43.Inordertoobtainthevaluetobeenteredadd8192decimal(xed
offset):8192+427=8235