| 摘要 |
<p>PURPOSE:To control meandering without mutually switching two systems while using sensors and load difference signals. CONSTITUTION:The difference of loads of a work side roll and a drive side roll is calculated by a computing element 21, and calculations of proportion(P), proportion+integral(PI), or proportion+integral+differential(PID) is calculated by a load difference controller 1. On the other hand, the moving amount corresponding to a signal detected by a meandering sensor is obtained by a computing element 20, and the deviation of this computed value from a reference value Ref is obtained by a computing element 23. Further, a meandering controller 2 controls the roll gap based on the signal resulting from P or PI operation.</p> |
