gefran TPD32-EV-500 series - Page 334

—————— TPD32-EV ——————
334
Status 3:
 ThesystemreachesthisstatusifthecommandSpeed match=1andtheStartcommandaregiven.
 StartingfromaStopcondition,ifthesecommandsaregiven,themotorspeedreferenceissetwith:W refer-
ence = [± Line speed x (Min dia ÷ Roll dia) ± (W gain % * W offset)] x Spd match gain
 whereW offsetisforcedto0witharamptimesettoSpd match acc.
 IfduringaStatus3functioningperiodthecommandSpeed match issetatzero,theStatus4isforced.
 IfduringaStatus3functioningperiodthesystemreceivesaStopcommand(Startdrive=0),theStatus5
isforced.
Status 4:
 ThesystemreachesthisstatusifstartingfromtheStatus3thecommandSpeed match issetatzero.
 Itusuallyhappenssimultaneouslywiththecuttingandcoilchangecommand.
 Inthisstatusthemotorspeedreferenceissetto:
W reference = ± Line speed x (Minimum diameter ÷ Roll diameter) ± ( W gain % + W offset)
 alltheinternalramptimesforthereferencecalculationaresetatzero.
 IfduringaStatus4functioningperiodthesystemreceivesaStopcommand(Startdrive=0),theStatus5
issetatzero.
Status 5:
ThesystemreachesthisstatusthroughtheStatus2,3,and4ifitreceivesaStopcommand(Startdrive=0).
 Itusuallyhappens:
 a) afteranautomaticswitchinginordertostoptherotatingcoil.
  ThespeedreferenceissetatzerowitharamptimesettoSpd match dec.
  TheparameterW offsetisimmediatelysetatzeroinordertoslowdownthecoilstartingfrom 
 thepresentspeed
 b) Afterthelinestopifthetensionhastoberemoved(inthiscasethedrivehastobedisabled).
 Anyway,whenthespeed=0hasbeenreached,thesystemswitchesautomaticallytotheStatus1.