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:
Oct. 08, 2024
Filed:
May. 14, 2021
Applicant:
Fanuc Corporation, Minamitsuru-gun, JP;
Inventors:
Naoya Nishinaga, Yamanashi-ken, JP;
Kenta Yamamoto, Yamanashi-ken, JP;
Assignee:
FANUC CORPORATION, Yamanashi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 23/24 (2016.01); H02P 23/14 (2006.01); H02P 27/08 (2006.01); H02P 29/028 (2016.01);
U.S. Cl.
CPC ...
H02P 23/24 (2016.02); H02P 23/14 (2013.01); H02P 27/085 (2013.01); H02P 29/028 (2013.01);
Abstract
When the rotation direction of a motor is determined by a connection determination unit not to match a rotation command, the phase sequence of a current detection signal and the phase sequence of a voltage command are changed by a phase sequence change unit, or the positive/reverse polarity of an encoding signal outputted from an encoder is inverted by the phase sequence change unit, whereby the rotation direction of the motor controlled by a motor control device can match the rotation command.