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:
Jan. 20, 2009
Filed:
Jun. 19, 2006
John M. Kasunich, Mayfield Heights, OH (US);
Daniel Pixler, West Bend, WI (US);
Brian T. Concannon, Menomonee Falls, WI (US);
Michael J. Melfi, Euclid, OH (US);
Semyon Royak, Beachwood, OH (US);
Mark M. Harbaugh, Richfield, OH (US);
John M. Kasunich, Mayfield Heights, OH (US);
Daniel Pixler, West Bend, WI (US);
Brian T. Concannon, Menomonee Falls, WI (US);
Michael J. Melfi, Euclid, OH (US);
Semyon Royak, Beachwood, OH (US);
Mark M. Harbaugh, Richfield, OH (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
A system and method for protecting a motor drive unit from an associated motor includes a motor drive unit protection system. The motor drive unit protection system includes at least one switch configured to be connected between a motor drive unit and a plurality of motor leads of the motor driven by the motor drive unit. The motor drive unit protection system also includes a controller configured to monitor the motor drive unit or the motor to determine a fault condition indicative of the motor potentially operating as a generator. Upon determining the fault condition, the controller is configured to cause the at least one switch to connect the plurality of motor leads together to protect the motor drive unit from the motor when the motor is operating as a generator.