Power supply management device and machine tool having the power-supply management device
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United States of America Patent
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May 9, 2017
Grant Date -
Jul 18, 2013
app pub date -
Sep 30, 2011
filing date -
Oct 1, 2010
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Abstract
The present invention provides a power-supply management device which can efficiently connect and disconnect power supply to an electric-powered section, and a machine tool including the power-supply management device. The power-supply management device (101) detects a synchronization command of a control program, and compares an operation time of the electric-powered section between synchronizations in each control system which is a synchronization target by the synchronization command on the basis of the detected synchronization command. Then, the power-supply management device (101) disconnects the power supply to the electric-powered section belonging to the control system except the control system having the maximum operation time of the electric-powered section between the synchronizations, and restarts the power supply at the end of the synchronization in each control system.
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