Speed Control System of a Three-Phase Motor on a Paper Shredding Machine Using a VFD

Agustiawan Agustiawan; wan Muhammad Faizal; Muammar Nazli; M. Aprinizar Prajuna; Heri Susanto; Rozy Mulyadi

Agustiawan Agustiawan Politeknik negeri bengkalis
wan Muhammad Faizal Politeknik Negeri Bengkalis
Muammar Nazli Politeknik Negeri Bengkalis
M. Aprinizar Prajuna Politeknik Negeri Bengkalis
Heri Susanto Politeknik Negeri Bengkalis
Rozy Mulyadi Politeknik Negeri Bengkalis

Keywords: Paper shredding, PLC, VFD, Three- phase motor

Abstract

Paper waste is one of the major components of the waste problem in Indonesia. Recycling serves as an effective solution to this issue, with the paper shredding process being a crucial stage in paper waste treatment. This study aims to design and test a paper shredding system that utilizes a three-phase motor controlled by an open-loop system based on a Programmable Logic Controller (PLC) and a Variable Frequency Drive (VFD). The VFD is used to regulate the motor’s frequency and voltage according to operational needs, while the PLC functions as the main control unit that manages the motor’s on-off operations. The use of a VFD allows the motor to operate with soft start and soft stop features, enhancing system safety and performance. Test results show that the system is capable of maintaining stable motor speed, both under no-load and load conditions, with an average speed variation of less than 1%.