Title:
送り軸モータおよび主軸モータを有する工作機械の制御装置
Document Type and Number:
Japanese Patent JP5612058
Kind Code:
B2
Abstract:
A control apparatus includes a converter for converting an AC voltage to a DC voltage, a feed shaft motor inverter for converting the DC voltage to an AC voltage for a feed shaft motor, a main spindle motor inverter for converting the DC voltage to an AC voltage for a main spindle motor, a power outage detection unit for detecting a power outage of the AC power supply, a voltage detection unit for detecting the DC voltage, and a control unit which, upon power outage of the AC power supply side, outputs a feed shaft motor deceleration command to the feed shaft motor inverter and outputs, to the main spindle motor inverter, a main spindle motor acceleration command when a DC voltage is greater than an upper limit and a main spindle motor deceleration command when the DC voltage is less than a lower limit.
Inventors:
置田 肇
田嶋 大輔
田嶋 大輔
Application Number:
JP2012247348A
Publication Date:
October 22, 2014
Filing Date:
November 09, 2012
Export Citation:
Assignee:
ファナック株式会社
International Classes:
H02P3/00; B23Q15/00; G05B19/18; H02J9/00; H02J9/06; H02P5/74
Attorney, Agent or Firm:
Aoki 篤
Tsuruta Junichi
Tomohiro Minamiyama
Kawai Chapter
Ken-ichi Nakamura
Tsuruta Junichi
Tomohiro Minamiyama
Kawai Chapter
Ken-ichi Nakamura