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ABSTRACT 锛歍he frequency converter-as one kind of controller controlling the rational speed of AC motor銆俫ets more and more extensive application锛宎nd the frequency converter Can be controlled by serial communication according to certain protoco1锛嶧or the purpose of improving the reliability and intelligence degree of control system of frequency converter锛宐ased on Visual C++programming environment锛宼his paper develops a plan controlling motor according to the specific request of Frequency converter锛寃hich realizes dynamically controlling the frequency鈥橲 param eters and real-time detecting the state of the Dong Yuan Frequency Converter etc锛嶵h e whole system is very convenient and practicable锛�
KEYWORDS锛� serial communication锛宖requency converter锛孷C++
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