Control system and method for switching pivot stands in a...

Details Control system and method for switching pivot stands in a... Control system and method for switching pivot stands in a...

B - Operations, Transporting

21

B

B21B 37/00 (2006.01) B21B 37/52 (2006.01)

Patent

CA 2074119

ABSTRACT OF THE DISCLOSURE In a master speed regulator system for a multi- stand rolling mill, a control system and method for switching a pivot stand via a bumpless transfer back and forth from the second stand to the last stand depending on the phases of the mill and while the mill is operating. A microprocessor is used for recalculating the master speed reference B1, the integral values for the master speed reference integral controller, and the outputs for the tension/automatic gauge integral controllers for the new pivot state based on conditions of the previous pivot state.

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