variable-frequency driveの例文
- Direct torque control ( dtc ) , which developed after the field - oriented control , is a novel and high - performance control strategy for ac variable - frequency drives
- Data acquisition card pcl813 gathers the data transmitted by the testing scene ’ s each sensor , and then the data are transmitted to the industrial personal computer ( ipc ) by the data bus pci of ipc , rs232c realizes the serial communication between the ipc and lower position machine plc , plc controls the performance examination system of agricultural products processing machines , rs485 realizes the serial communication between plc and the variable - frequency drive ( vfd ) , vfd changes the alternative variable frequency motor ’ s frequency , thus which control the flow of raw materials
