gefran TPD32-EV-...-4B - Setting of the Speed Zero Logic; Speed-Up Function

—————— TPD32-EV ——————
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- ViatheSet ux / if parameter(FLUXREGULATIONmenu)thecalculationofthecurveparameterswill
becarriedout.EnterthisparameterthenpressENTtoexecutethecalculation.
 Theprocedurerequiresafewseconds.
- Settheoperatingmodeoftheeldcontrol(Constant current / Voltage control),setthevalueofFlux
current max at100%andsavetheparameters.
- ChangingofMax out voltage or Motor nom uxneedanewcurvetuning.
Speed-up function
Withloadshavingahighmomentofinertiaitispossibletocheckthejumpsduringthespeedchanges.Theycan
bereducedusingthefunction“Speed-up”.Thegures5.3.7.3and5.3.7.4showtheinuenceofthisfunction.
Figure 5.3.7.3: Above: Actual spd; Below: Motor current jumps with the speed
changes due to a high moment of inertia. The function Speed-up is not active.
Figure 5.3.7.4: Above: Actual spd; Below: Motor current. The same drive with
Speed -up function active.
Parameters used in the example:
Speed up base  14ms
Speed up gain  50%
Speed up lter 20ms
Setting of the speed zero logic
- Thespeedzerologicisfactorysetasdisabled.Seesection6.7.2,“Speedzerologic”,foradescriptionof
thedrivebehavior.
- DisableoftheI-sectionofthespeedregulatorwithn=0:
I-sectiondisabled:      Enable spd=0 I=Enabled
I-sectionenabled:      Enable spd=0 I=Disabled
note!  Whenthemotorisatastop,itispossibletoavoidthecreepofthedrivedisablingtheIsec-
tion.Inthiscasewhenthemotorisatastop,itcannotreceiveanyloadandthereforethis
functionisnotsuitableforallapplications!
- SuppressionoftheP-gainsetviaSpd=0 P gain:
- IfthereferenceisaboveRef 0 level:   Enable spd=0 R=Enabled
- Iftheref.and/orthereactionareabove Ref 0 level:  Enable spd=0 R=Disabled
note! Enable spd=0 RisactiveonlywhenEnable spd=0 Pisenabled.