A digital control system with graphic language and its application to variable speed drives

To realize various types of control equipment in the field of power electronics, a digital control system has been developed that provides excellent flexibility in both hardware and software. A graphic language, CPL, for power electronics has been developed to improve productivity and maintainability. The adoption of a man-machine interface and communication functions permits easy use for various applications. By using CPL, a control system can be realized by a control engineer with no programming skill.<
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