Implementation of turret system control with induction motor on CNC lathe using PLC Siemens S7-200

摘要

CNC lathe is popular automatic machine tools, which basically requires Programmable Logic Controller (PLC) for the mechanical motion of the machine. This paper discuss the initial implementation of PLC-CNC in controlling the AC induction motor as rotation servo of the lathe turret. The implementation was mainly tested on CNC lathe machine with 4 different conditions that is 270 rpm, 240 rpm, 210 rpm and 180 rpm respectively. The lowest average error is 5.4%, obtained on 180 rpm.