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Title:
ERROR JUDGMENT VALUE SETTING METHOD, MOTOR CONTROL DEVICE, AND ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2006/001480
Kind Code:
A1
Abstract:
A control unit of a motor driver automatically operates a linear motion device according to a given drive condition. An error judgment value setting unit samples the peak of the current supplied to the linear motor during the automatic operation. According to the peak value sampled, an error judgment value used for detecting an error of the linear motion device is set. For example, the error judgment value can be set at the peak value multiplied by about 1.2 to 1.4 and more preferably, by 1.25 to 1.3. Thus, it is possible to automatically set an error judgment value in accordance with the drive condition of the linear motion device.

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Inventors:
Shoda, Kazuo c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
Nomura, Yuki c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
Nagato, Yoshifumi c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
Application Number:
PCT/JP2005/011971
Publication Date:
January 05, 2006
Filing Date:
June 29, 2005
Export Citation:
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Assignee:
THK CO., LTD. (11-6, Nishi Gotanda 3-chome Shinagawa-k, Tokyo 03, 14185, JP)
Shoda, Kazuo c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
Nomura, Yuki c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
Nagato, Yoshifumi c/o THK CO. LTD. (11-6, Nishi Gotanda 3-chome, Shinagawa-k, Tokyo 03, 14185, JP)
International Classes:
H02P7/00; (IPC1-7): H02P7/00
Foreign References:
JPH0962343A1997-03-07
JP2003348900A2003-12-05
JP2003134900A2003-05-09
US4663576A1987-05-05
Attorney, Agent or Firm:
Sera, Kazunobu (Acropolis 21 Building 6th floor, 4-10 Higashi Nihonbashi 3-chom, Chuo-ku Tokyo 04, 10300, JP)
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