| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tension control method for a cold rolling mill for performing rolling while winding up a belt-like material with a coiler as imparting prescribed tension to the material which is unwound with an uncoiler by arranging a rolling mill between the uncoiler and the coiler, and to provide an apparatus therefor. <P>SOLUTION: When performing the tension control by detecting an electric current which is made to flow to a motor for driving the coiler and controlling a torque current on the basis of the value of the torque current determined by vector calculation, the torque current is compensated on the basis of control system switching signal. <P>COPYRIGHT: (C)2004,JPO |
