Motor controller having a function of suppressing vibrations
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United States of America Patent
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Oct 24, 2017
Grant Date -
Sep 1, 2016
app pub date -
Feb 24, 2016
filing date -
Feb 27, 2015
priority date (Note) -
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Abstract
A motor controller according to one aspect of the present invention is a motor controller for controlling a servo motor that drives a machine, including: a position command unit for outputting a position command of the machine; a position detector for detecting the position of the machine; a position controller for generating a motor velocity command based on the position command output by the position command unit and the machine position detected by the position detector; and a velocity controller for controlling the motor velocity in accordance with the motor velocity command, and is constructed such that the position controller includes a filter F(s) that approximates the inverse characteristic of the transfer characteristic from the motor velocity command to the machine velocity.
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