Control locations and operating modes 43Operating modes of the driveThe drive can operate in several operating modes with different types of reference.The mode is selectable for each control location (Local, EXT1 and EXT2) inparameter group 19 Operation mode.The following is a general representation of the reference types and control chains.The page numbers refer to detailed diagrams in chapter Control chain diagrams.Motor feedbackconfiguration(p 647)Speedreferencesource selectionI(p 644)Speed controller(p 650)Speed referencesource selectionII(p 645)Speed referenceramping andshaping(p 646)Speed errorcalculation(p 649)Torquereferencesource selectionand modification(p 651)Referenceselection fortorque controller(p 653)Frequencyreferencesource selectionand modification(pp 656)Torquecontroller(p 655)DTC motorcontrol modeScalar motorcontrol modeSpeed referencescaling(p 662)Diametercalculation(p 663)Torque limitation(p 654)Tension control(p 664)Dancer control(p 664)Winder torquetrim chain(p 667)Tension to speedcorrection(p 662)Frequencyreferencemodification(p 657)Operating modeselection(p 652)Load feedbackand positioncounterconfiguration(p 648)