Torque and speed control of three - phase induction motors via profibus network

In this study, the remote control of induction motor have been implemented by using Profibus network. The design is composed of central control, AC motor and Profibus network which provides the communication between them. The control of the motor has been designed as a feedback control. The control data is obtained by the usage of motor speed data that is received via network, and this data is transferred to the motor through network backbone. In this design, real-time control system has been applied, and hence for a sensitive control that perform soft starting and stop operation which is suitable intended use of the motor have been obtained. By reason of high velocity data transfer of Profibus, the position errors due to the network delay have occured at lower ratio.