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Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/172859
Kind Code:
A1
Abstract:
The present invention addresses the problem of, when an abnormality has occurred in one detector, switching to feedback control based on a detector in which an abnormality has not occurred.　This motor control device 100 is provided with a first abnormality detection unit 115 that detects an abnormality in a separate detector 154 as the detector or a feedback cable 1541 thereof, a second abnormality detection unit 116 that detects an abnormality in an encoder 151 of a motor as the detector or a feedback cable 1511 thereof, and a switching unit 111 that switches from full-closed control to semi-closed control, or to control using only the separate detector. When either of the first abnormality detection unit 115 or the second abnormality detection unit 116 has detected an abnormality, the switching unit 111 switches to control using only any detector in which an abnormality has not occurred.

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Inventors:
MORIHASHI RYOU (JP)
IKAI SATOSHI (JP)
Application Number:
PCT/JP2022/004309
Publication Date:
August 18, 2022
Filing Date:
February 03, 2022
Export Citation:
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Assignee:
FANUC CORP (JP)
International Classes:
H02P29/028
Foreign References:
JP2007272720A2007-10-18
JPS60154110A1985-08-13
JP2010271854A2010-12-02
JP2018207695A2018-12-27
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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