Main Causes Why Home-made PC Electric Control System for Mine Hoisters Has Not Achieved All-PC and the Way to Deal with the Situatio

This paper expounds the developing course and present situation of home made PC electric control system for mine hoisters and points out main causes why the PC electric control system has not achieved all PC. The countermeasures to make it all PC are put forward. Finally, system achieved method of the braking system of mine hoisters controlled by PC is introduced.