gefran TPD32-EV-...-4B - Flux Limits

—————— Instruction manual ——————
159
In use Tcur lim + Statusmessage,indicatingtheusedvalueofthecurrentlimitforthepositivetorque
directionasapercentageof Full load curr.
In use Tcur lim - Statusmessage,indicatingtheusedvalueofthecurrentlimitforthenegativetorque
directionasapercentageof Full load curr.
Current lim red Settingofthearmaturecurrentlimit,as%ofFullloadcurr,whentheTorquereduct
functionisactive.
Torque reduct Selectionfortorquereduction.Thisfunctioncanbeassignedtoafreelyprogrammable
digitalinput.Whenthetorquereductionfunctionisactive,thecurrentlimitchanges
accordinglybythepercentagedenedwiththeCurrent lim redparameter.
 High  Torquereductionnotactive
 Low  Torquereductionactive
ExampleofthefunctionoftheCurrent lim redandTorque reductparameters.
T current limit (orT current lim +/-)=80%
Current lim red=70%
Torque reduct=High(notactive) Currentlimit=80%
Torque reduct=Low(active)  Currentlimit=70%
ThevalueforT current limit canbesetintheSTARTUP\Limitsmenu.
6.5.3 Flux limits
LIMITS
Flux limits
[467] Fluxcurrentmax[%]
[468] Fluxcurrentmin[%]
Parameter description No.
Value
Standard
Conguration
min max
Factory
American
Factory
Standard
Flux current max [%]
467 P468 100 100 100 */**
Flux current min [%]
468 0 P467 5 5 -
*Thisparametercanbesetonaprogrammableanalogicoutputs.
** Thisparametercanbesetonaprogrammableanalogicinput.
Thelimitsregardingtheeldcurrentaresetinthissubmenu.
Flux current max PercentageofmaximumeldcurrentaccordingtotheMotor nom uxparameter.
 Themax.value(100%)correspondstothecirculationintheeldcircuitofthemotor,
ofacurrentequaltothevaluesetinMotor nom ux.
 IfanycurvehasbeensetviaI eld cnst parameter,thevariationofthisparameterinu-
encestheeldcurrentinalinearway.
 (seeFlux/ifcurvesection5.4.5)
Flux current min PercentageofminimumeldcurrentaccordingtotheMotor nom ux parameter.
 Itsvaluestatesthecirculationintheeldcircuitofthemotor,ofaminimumcurrent
comparedtothevaluesetinMotor nom ux.
 Thevaluesethereaffectthethresholdofthe“Fieldloss”alarmindication.The
thresholdisthehalfof Flux current min.