Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ERROR DETECTION METHOD AND MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/001479
Kind Code:
A1
Abstract:
A control unit of a motor driver feedback-controls current supplied to a linear motor according to a detection value of a linear encoder. An error detection unit monitors current supplied to the linear motor and detects an error of a linear motion device according to its waveform. When an error is detected, an alarm is sent to a user by means of a lamp, a buzzer, an e-mail, or the like. Thus, it is possible to rapidly and accurately detect an error of the linear motion device.

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/JP2005/011970
Publication Date:
January 05, 2006
Filing Date:
June 29, 2005
Export Citation:
Click for automatic bibliography generation   Help
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:
H02P25/06; H02P29/00; (IPC1-7): H02P7/00
Foreign References:
JPH0962343A1997-03-07
JP2003348900A2003-12-05
US4663576A1987-05-05
Attorney, Agent or Firm:
Sera, Kazunobu (Acropolis 21 Building 6th floor, 4-10 Higashi Nihonbashi 3-chom, Chuo-ku Tokyo, 103-0004, JP)
Download PDF: