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:
May. 16, 2017
Filed:
May. 20, 2015
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Reginald A. Drake, New Hamburg, CA;
Angelo Bortolus, Mississauga, CA;
Marius G. Chis, Cambridge, CA;
John David Allan, Kitchener, CA;
Zhongyuan Cheng, Cambridge, CA;
Catalin Florin Gemanaru, Elmira, CA;
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
Motor drive diagnostic and control methods and apparatus are provided in which rectifier and inverter switching devices are individually monitored for malfunctions, and detected malfunctions initiate implementation of a safety function to signal a drive controller to shut down non-safety-related processing, to discontinue command pulse signaling to the switching devices, and to disable optical transmitters between the drive controller and the rectifier and inverter switches, and an input contactor or other switching circuit is opened to disconnect input power from the motor drive after implementation of the safety function.