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:
Nov. 08, 2022
Filed:
Oct. 19, 2020
Fanuc Corporation, Yamanashi, JP;
Takaki Shimoda, Yamanashi, JP;
Satoshi Ikai, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A servo motor controller is provided which enables an offset to be set more easily and accurately, in comparison to the conventional technique. A servo motor controller for controlling a servo motor of an industrial machine includes: a position detection unit that detects a position of the servo motor; a magnetic-pole detection unit that detects a magnetic-pole phase of the servo motor; and a phase calculation unit that determines a calculation-based phase based on position data of the servo motor and magnetic-pole gap information of the servo motor. The servo motor controller is configured to acquire an offset relationship between the magnetic-pole phase detected by the magnetic-pole detection unit and the calculation-based phase determined by the phase calculation unit, after a reference position is passed through.