Abstract
Mechanical hand is able to model people`s motions in many ways. Mechanical hand is able to do lots of works sucj as carrying,decorating,incising , spray-painting,and so on. This PLC design is to control hte mechanical hand by machanical hand teaching model ,using S7-200. This design includes PLC technique,position control technique,air powered technique,and the mechanical structure of the mechanical hand teaching modes is made from several machanical components including ball bearing screw mandrel, slider, cylinder and gas cramps.Siemens S-200 PLC is made up by several electronic components including stepper motor,stepper motor driver,sensos,limit switches and solenoid pilot actuated valve. The program is made up of sequense structure.Firstly I drew the flow chart and do the programming step by step.I need a PLC to control stepper motor by a main programming. I add a controlling programming of manually operation of the machanical hand. I carry out to control the machanical hand by the control panel by downloading the program to the PLC and make sure they communicate well.
Keywords:Program Logic Controler, mechanical hand, stepper motor driver, steppes motor, sensors, limit switches, solenoid pilot actuated valve