Design of electrical control system of roadheader based on PLC

In view of problems of low reliability and high fault rate in traditional electrical control system of roadheader, an electrical control system of roadheader based on PLC was designed. General structure of the system was given, design of hardware and software and implementation of remote control of the system were introduced in details. The actual application shows that the system has stable and reliable running and complete protection functions, which meets working requirements of roadheader.