IMPLEMENTATION OF SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM FOR AC SERVOMOTOR USING PLC

Abstract

automation scheme for control of three-phase AC servomotor and monitoring of its parameters. A control method for Servomotor has been designed and tested for a position precision application under varying load conditions (varying torque). The control of servomotor in three basic modes i.e. position, speed and torque modes is achieved through PLC programming, Supervisory Control and Data Acquisition (SCADA) and Human Machine Interface (HMI) control. Monitoring of servomotor parameters is realized by configuring the application software for servo-drive. The real time data related to servo amplifier (drive) and servomotor such as output of position encoder, torque developed by servomotor, power input to motor, etc. are accessed for supervisory control of servo-drive. The easy accessibility and availability of drive data coupled with the software to manipulate, analyze and process the information becomes a powerful tool for accessing precision applications involving servomotor control. A...