The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2020
Filed:
Jul. 28, 2017
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Inventors:
Assignee:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 21/02 (2006.01); G05B 15/02 (2006.01); G05D 3/12 (2006.01); H02K 11/21 (2016.01); G05B 19/402 (2006.01);
U.S. Cl.
CPC ...
G05B 21/02 (2013.01); G05B 15/02 (2013.01); G05D 3/127 (2013.01); G05B 19/402 (2013.01); G05B 2219/41141 (2013.01); G05B 2219/41418 (2013.01); H02K 11/21 (2016.01);
Abstract
A motor controller includes memory, and processing circuitry that controls a motor based on a position command and based on a position detection value corresponding to a detected position of the motor, calculates a tolerance position error in a successive manner based on the position command and based on a control parameter used to control the motor, calculates a position error maximum threshold that depends on the tolerance position error, detects an abnormality based on the position error maximum threshold, and triggers an indication when the abnormality is detected.