Title:
METHOD FOR TRANSMITTING INFORMATION IN CONTROLLER AND METHOD FOR DETECTING ABNORMALITY IN ENCODER
Document Type and Number:
WIPO Patent Application WO/2019/031219
Kind Code:
A1
Abstract:
A robot has a motor and processes a workpiece. The robot has: a controller for outputting speed commands and command position information; an encoder; a position sensor for outputting, as a difference signal, the amount of positional displacement of the workpiece W relative to a prescribed position; a servo driver for controlling the motor upon receiving the speed command, an output signal from the encoder, and the difference signal; and a safety unit for detecting abnormalities in the encoder. When the servo driver controls the motor on the basis of the speed command, the output signal, and the difference signal, the servo motor transmits the difference signal to the controller. The controller adds a correction value based on the difference signal to the command position information, generates new command position information, and transmits said new command position information to the safety unit.
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Inventors:
KINUGASA YASUHIRO
AIMI KEI
AIMI KEI
Application Number:
PCT/JP2018/027585
Publication Date:
February 14, 2019
Filing Date:
July 24, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B25J19/06; B25J13/00; G01D5/12; G01D5/244
Domestic Patent References:
| WO2018079075A1 | 2018-05-03 |
Foreign References:
| JP2011192015A | 2011-09-29 | |||
| JP2010152595A | 2010-07-08 | |||
| JPH10315173A | 1998-12-02 | |||
| JPH11129186A | 1999-05-18 | |||
| JP2013000833A | 2013-01-07 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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