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. 06, 1993
Filed:
Nov. 06, 1990
Applicant:
Inventors:
Mutuo Tokashiki, Narashino, JP;
Kazumasa Sugiyama, Funabashi, JP;
Sumio Kobayashi, Chiba, JP;
Hiroshi Sugai, Sakura, JP;
Kazuyuki Nakagawa, Ichikawa, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Keiyo Engineering Co., Ltd., Chiba, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
31856813 ; 318606 ; 318603 ;
Abstract
A motor driving control apparatus having a function for performing an individual test operation of a servomotor driving control apparatus or an inverter apparatus by generating test operation command in the control apparatus in place of a command from an external controller, whereby both a function check and a performance check can be performed to attain an improvement in reliability and case of operation.