The original DC drive system of the C roller table of the hot rolling mill is introduced, and the problems existing in the DC drive system are analyzed. The characteristics of the roller table drive system and the requirements of the roller table speed control system are discussed. According to the transformation requirements, the roller table U/f AC variable frequency speed control drive system and PLC control system are designed, and the control software flow chart is given. Compared with the original DC drive system, this design scheme can greatly improve the system operation level and meet the needs of the overall technical level development of the hot rolling mill. Keywords: technical transformation, control system, variable frequency speed regulation
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