2006•Mechanical & Electrical Engineering MagazineRequires access

The design of frequency control and PLC control in the bridge crane

Wang Xiong-hai

Abstract

An application of frequency control and PLC control technique in the electricity control system of bridge crane was introduced. In order to operate more stably and more safely,the crane adopt to control design of step speed regulation to every drive electric engine.The function of protection、alarm and recovery processing to PLC control program was also(represented.)

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Key concepts: Bridge (graph theory), Engineering, Control (management), H bridge, Control engineering, Electricity, Control system, ALARM