Controller and controller of rolling mill
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United States of America Patent
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Aug 12, 2014
Grant Date -
Jul 5, 2012
app pub date -
Sep 16, 2009
filing date -
Sep 16, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A controller restraining overcorrections which occur upon manual intervention in operation of an equipment controller. The controller includes a driving device which drives equipment to perform mechanical work, a computation element which computes a target value related to an action of the equipment, an automatic controller which outputs an automatic control signal for the driving device based on the target value so that the equipment becomes stable. The controller also includes a manual intervention control unit which outputs a manual correction signal for the driving device in response to a manual intervention. A manual correction unit makes a determination as to whether there is an overcorrection based on the automatic control signal and the manual correction signal, and outputs to the driving device a product obtained by multiplying the manual correction signal output from the manual intervention unit by a prescribed gain regulation value.
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