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PLC-Based PID Method Extruder Temperature Control System for Microplastic Molding Machine
Original title: Sistem Kontrol Suhu Extruder Mesin Molding Microplastic Metode PID Berbasis PLC
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This Indonesian-language paper describes a PID-based PLC temperature control system for the extruder component of a small-scale plastic injection molding machine used for educational purposes. It is a mechatronics engineering paper unrelated to environmental microplastic contamination.
Intisari— Perkembangan teknologi yang semakin canggih pada industri percetakan barang berbahan plastik mengakibatkan bertambahnya permintaan jumlah produksi dalam waktu yang singkat. Salah satu cara mengatasi masalah tersebut adalah membuat mesin injeksi molding. Mesin molding microplastic merupakan mesin injeksi molding yang bertujuan untuk media pembelajaran dengan ukuran yang diperkecil akan tetapi prinsip kerja yang sama. Salah satu bagian dari mesin molding microplastic yang perlu diperhatikan adalah suhu pada extruder. Suhu pada extruder dipanaskan oleh band heater dan suhu harus terjaga di 180 °C agar material plastik yang digunakan dapat dilelehkan secara sempurna. Kendali suhu mesin molding microplastic menggunakan PLC (Programmable Logic Controller). Metode yang digunakan pada PLC adalah metode PID. Dari pengujian PID yang dilakukan didapatkan nilai Kp = 51.19, Ki = 0.0003, Kd = 1894030. Dan pada pengujian didapatkan perbedaan waktu untuk mencapai setpoint sebesar 2 menit lebih lambat dari pada band heater yang langsung diberikan tegangan AC 220 V.
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