Multi Speed Control Rolling Rhythm of the Discharge Roller
This article introduces the use of Siemens S7-400 PLC to control the output of variable frequency drives at different speeds,in order to achieve multi stage speed changes in the discharge roller conveyor.The PLC is used to automatically control the rolling rhythm at different positions and states,verifying the reliability of the rolling rhythm control technology.The goal of controlling the rolling rhythm is achieved through the switching of multiple speeds and the speed changes and pauses when the billet reaches the entrance of the rolling mill.
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