Control device and control method for changing operation according to motor temperature
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United States of America Patent
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May 22, 2018
Issued Date -
N/A
app pub date -
Apr 19, 2017
filing date -
Apr 26, 2016
priority date (Note) -
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Abstract
To provide a control device and control method capable of preventing overheating of both a master shaft and slave shaft. A control device for machine tools includes a master-shaft motor drive part, a slave-shaft motor drive part and a numerical control part that sends a master-shaft operation command to the master-shaft motor drive part, in which the master-shaft motor drive part drives the master-shaft motor based on the master-shaft operation command received from the numerical control part, the slave-shaft motor drive part drives the slave-shaft motor so as to synchronize with the master-shaft motor based on position feedback information received from the master-shaft motor, and the numerical control part creates the master-shaft operation command to change operation so as to restrict output of the master-shaft motor, upon the temperature of the master-shaft motor exceeding a first predetermined value, or the temperature of the slave-shaft motor exceeding a second predetermined value.
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