... ): Precise speed sensorless vector control technology realizes AC motor decoupling, enabling the DC motorization of operation control. ... Speed stabilization precision: ± 0.2% 0.25Hz controllable motor stable operation with 150% rated torque. Different names: 变频器,周波数インバータ,可変周波数ドライブ, ... Drive,AFD,Adjustable Speed Drive,ASD,AC Motor speed controller,AC Motor Drive,Variable Voltage Variable Frequency,VVVF, ...