gefran TPD32-EV-500 series - Control Logic; Diameter Initialization; Initial Phase

—————— TPD32-EV ——————
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6.17.5 Control logic
Thischapterdescribesthemostcommonlogicsequences:
1. Diameterinitialization
2. Initialphase
3. Automaticswitch
4. Coilstop
5. Jogfunction
Diameter initialization
Thissequenceiscarriedoutbeforethestartingofawinder/unwinderbothwithacoilinitialphasewhentheline
isstoppedandduringanautomaticswitching.
ThediametervaluesetinRoll diameterdependsontheparametersDiam preset 0,1,2,3andonDiam preset sel.
 If2-4differentvaluesofthestartingdiameterhavebeenset,theselectionhastobecarriedoutviasome
programmeddigitalinputssuchasDiam preset sel 0andDiam preset sel 1,orviatheparameterDiam
preset sel.
 Ifthevalueofthestartingdiameterissetviaananaloginput,setDiam preset sel=3.
 EnabletheparameterDiam resetforatimelongerthan20ms.
 Resetthedigitalinputstatusbeforethestart.
Initial phase
Thissequenceiscarriedoutinordertostarttheinitialphasewithastoppedline.
Torque winder En
Start (drive)
Diam reset
Figure 6.17.9: Initial phase with a stopped line
 Initializethediametervalueasstatedabove.
 Enablethetensioncontrolandgivethestartcommandtothedrive.
 Ifthespeedreferencecalculationiscarriedoutinsidethedrive(Speed demand en=Enable)theinitial
phaseisstartedwiththereferencesettoW offsetandwitharamptimeOffset acc time.
Nowthelinecanbestarted.