Abstract
Can programme controller control system relatively relay and control system advantage obvious one-chip computer, At present, PLC high dependability , abundant order collect extremely with their , programming method , strong function , fine performance , able to bear abominable ability of environmenting good of figure, have already become and used the most extensive industrial control equipment in the industry controlled field. The research object originally designed- metal cutting lathe , adopt PLC to control because of the above reason..
While studying this metal lathe, confirm the overall design plan of the control system at first, and then confirm the types and I/O components of PLC, and then design the electric apparatus control system principle picture of the motor,design the mechanical manual procedure of unit of metal cutting, the whole machine full-automatic procedure,fault alarm and signal show the procedure, operate the computer to debug. The control system originally designed can make the metal cutting lathe have the whole machine full-automatic , the unit is semi-automatic , three kinds of manual working ways of unit , make, start , stop in advance , stop promptly , go backwards and count etc. and operate the function promptly in advance. Have every power head , check organization and transfer to location organization online / choose the function off-line, have ultra beat protect , short out protection , overload protection , is it press function of protecting etc. to lose. Is it adopt " jump footwork " that counselor develop to design originally, every manual design plan that procedure separates each other of unit, the introduction used in the manual operation button and PLC that controls of every unit sparingly greatly is clicked.
Keyword: Control system , PLC , design plan , working way , operation function , footwork of jumping