gefran TPD32-EV-500 series - Figure 6.11.5.2: Allowed Area for Encoder 2 Pulses and Motor Max Speed

—————— TPD32-EV ——————
190
Flux weak speed Speedvalueasapercentageof Motor max speed,whentheVoltagecontrolphasestarts.
TheFlux weak speed parameter,whenthespeedfeedbackcontrolisenabled(Enable
fbkcontr=Enabled),isusedtounderlinethefactthatduringtheVoltagecontrolphase
thearmaturevoltageandthefeedbacksignalarenotproportional.Ifthedriveworks
withaconstanttorqueonthewholeregulationrange(Flux reg mode =ConstantCur-
rent),itisnecessarytoinsertthefactoryset100%value.
Speed fbk error Max.allowederrorexpressedasapercentageofthemax.outputvoltage(Max out
voltage).BymeansofMax out Voltage,Flux weak speedandMotor max speed a
relationbetweenmotorspeedandarmaturevoltageisobtained.Ifadifferencehigher
thanSpeed fbk erroroccursaSpeed fbk lossfailureoccours.
Tacho scale Finescalingofthespeedfeedbackusingatachometeranaloggenerator(Speed fbk sel
=Tacho).Itisamultiplierofthereadtachvoltage.
 Forexample:
 Analogtach=60V/1000rpm,motortoprunningspeed3000rpm.
 Maximumtachvolts=(60V/1000rpm*3000rpm)=180VDC.
- Setdip-switchS4for181.6V(seetable4.4.3)
- Setthetachoscaleparameter=181.6V/180V=1.01
-
FineadjustthevalueofTachoscaleifthe180VDCtachvoltageisnotperfectlyreached.
Speed offset Offsetscalingofthefeedbackcircuit.
Encoder 1 pulses NumberofpulsesperrevolutionofthesinusoidalencoderconnectedtotheXE1connector.
Encoder 2 pulses NumberofpulsesperrevolutionofthedigitalencoderconnectedtotheXE2connector.
TheEncoder2pulsesandMotormaxspeedshallbeinsidetheallowedareashownin
gure6.11.5.2
Motor max speed [PAR 162]
Encoder 2 pulses [PAR 169]
aerA dewollA
6000
0
3000
0 2000
1000
2000
4000
5000
1000 008100610021008004 1400600200
Par 162 = 6000 rpm (max.)
Par 169 = 100 ppr (min.)
Par 162 = 1465 rpm
Par 169 = 100 ppr (min.)
Par 162 = 300 rpm
Par 169 = 500 ppr
Par 162 = 8 rpm
Par 169 = 977 ppr
Par 162 = 300 rpm
Par 169 = 976 ppr
100
500
1500
500
When Par 175
= 700V or greater,
Par 162 min.
= 500 rpm
Figure 6.11.5.2: Allowed area for Encoder 2 pulses and Motor max speed
Refresh enc 1 Enablethemonitoringoftheencoder1(connectorXE1)connectionstatus,inorderto
detectaspeedfeedbacklossalarm.
 Whenanalarmisdetect,thekeypadwillshown„Speedfbkloss“.Encoder 1 state
providestheindicationofencoder1connectionstatus.Theparametercanbeprogrammed
onadigitaloutput.ThisfunctionisactivatesettingEnable fbk contr=Enabled.