Abstract
The purpose of this paper is to design an electric control system of stage loader which has clear logical relations and is easy to operate. The control system improved the working reliability of electric control system. Taking stage loader used in coal storage yard as an example, we introduce the mechanical structure and working principle of stage loader, mainly discuss about the components of electric control system, the action sequence of the actuator, electrical control PLC program .This paper pointes out that the use of step ladder instruction can make logical relations of action sequence clear and the use of state initialization instruction can make the state transitions among manual program, homing procedure, automatic continuous working procedure simple.
Published Version
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