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:
Apr. 23, 2002
Filed:
Jan. 29, 2001
Nobuyasu Takaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A servo system controller which has a sequence controlling section and a servo controlling section , employs not only a current position of a servo motor but also other servo control data or a sequencer device as comparison data, and executes a comparing process for compares whether or not respective comparison data are in respective detection ranges to then output respective comparison results, increase and variation of a response time can be prevented until the comparison results are output from the change of the comparison data. A comparing process table memory is provided in the servo controlling section , and the comparing process is executed in synchronism with a calculation period of the servo controlling section , and a detection signal is output while the comparison data is within a detection range. In a machining apparatus utilizing the servo system controller, a tact time can be reduced without large increase of a cost. Also, if the increase and variation of a decision process time have an influence upon the machining precision, reduction in the machining precision can be prevented.