Abstract: Along with the development of science and technology, intelligent motor controllers are applied in power plant extensively more and more. Taking the intelligent motor controller of type 3UF50 SIMOCODE manufactured by SIEMENS and type ST500 manufactured by Suzhou Intelligent Company as examples, their function features and the operation experience in Laicheng Power Plant were introduced respectively in this article.

Key words: intelligent motor controller, SIMOCODE, ST500