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Title:
EMERGENCY STOP METHOD OF DRIVING SYSTEM THAT DRIVES A UNIT OF MOTOR WITH TWO OR MORE CONTROLLERS, AND ITS MOTOR CONTROLLER
Document Type and Number:
Japanese Patent JP2009072000
Kind Code:
A
Abstract:

To provide a method of performing emergency stop safely without providing a special signal line in an emergency stop method of a driving system that drives a unit of a motor with two or more controllers, and its motor controller.

The motor controller includes a master side controller 1 and a slave side controller 2. The master side controller 1 outputs a torque command to the slave side controller 2 to perform the torque control of the slave controller 2. In the emergency stop method of the driving system that drives a unit of a motor with the two or more controllers, an emergency stop processing section 23 of the master controller 1 zeroes a torque command to the slave controller 2 to immediately stop the master side controller 1, when an event requiring an emergency stop occurs in the master side controller 1.


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Inventors:
SATO KAZUO
Application Number:
JP2007238652A
Publication Date:
April 02, 2009
Filing Date:
September 14, 2007
Export Citation:
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Assignee:
YASKAWA ELECTRIC CORP
International Classes:
H02P3/18
Domestic Patent References:
JP2002052591A2002-02-19
JP2002052592A2002-02-19
JPH0393494A1991-04-18
JP2002095290A2002-03-29
JP2005102394A2005-04-14
JP2004025287A2004-01-29
JPH11356074A1999-12-24
JPH04365767A1992-12-17