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Abstract
The SCADA-based AC motor monitoring and control system is a three-phase induction motor monitoring and control system. Motor speed regulation feedback is obtained from the tacho generator which is connected to the pulleys. The SCADA program manages inverter and microcontroller communications so that the process of monitoring the speed of an induction motor is done through a computer. Induction motor speed regulation using VSD as an inverter functions to adjust the source frequency so that the motor speed can be adjusted. Communication between VSD, PLC and SCADA uses the MODBUS protocol to monitor the performance of the induction motor. The main equipment uses ATV12HU22M3 inverter and CQM1H PLC. The CX-Programmer and CIMON software function to manage and monitor in real time the system. The results of the induction motor settings can be adjusted with VSD speeds ranging from 0-50 Hz. PLC as master control and SCADA function as distance controller.
Highlights
Abstrak— Sistem monitoring dan kontrol motor AC berbasis SCADA merupakan sistem monitoring dan kontrol kecepatan putaran motor induksi tiga fasa
Motor speed regulation feedback is obtained from the tacho generator
which is connected to the pulleys
Summary
Abstract— The SCADA-based AC motor monitoring and control system is a three-phase induction motor monitoring and control system. Pengaturan kecepatan motor induksi tiga fasa dapat dilakukan dengan empat cara yaitu dengan mengubah jumlah kutup, mengatur tegangan sumber, mengatur frekuensi sumber dan menambahkan tahanan luar (khusus untuk rotor belitan). Pengaturan kecepatan motor induksi yang bisa dilakukan dengan leluasa adalah dengan mengubah tegangan dan frekuensi sumber. Guna memudahkan pengontrolan kecepatan motor induksi tiga fasa, yang termonitoring dan memiliki data yang real time maka monitoring dan kontrol motor dihubungkan dengan sistem SCADA (Supervisory Control And Data Acquisition). Pada saat rotor berputar maka frekuensi rotor akan dipengaruhi oleh slip yang mengikuti persamaan di bawah ini: Pengaturan kecepatan motor induksi tiga fasa dapat dilakukan beberapa cara antara lain adalah [17]-[24]: a. Untuk dapat mengatur kecepatan motor induksi tiga fasa dengan variabel tegangan bisa dilihat pada persamaan torsi motor induksi sebagai berikut: 120. Untuk PLC dari pabrikan Omron sendiri memiliki beberapa macam tipe salah satunya yaitu PLC CQM1H Modular
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