Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MOTOR CONTROLLER AND MOTOR CONTROL METHOD
Document Type and Number:
Japanese Patent JP2019161924
Kind Code:
A
Abstract:
To prevent a movement object from colliding with a surrounding object, even when releasing a brake and moving the movement object manually.SOLUTION: A motor controller 10 controlling a servo motor 11 includes: an inverter 16 having multiple switching elements S; a motor control part 30 for driving the servo motor 11 by controlling the switching operation of the multiple switching elements S; a brake 18 imparting brake force to the servo motor 11; a brake control section 34 for controlling the brake 18; and a state acquisition part 32 for acquiring the rotational state of the servo motor 11. When the rotation amount per unit time of the servo motor 11 becomes a specified quantity or more, in a state where the motor control part 30 does not drive the servo motor 11 and the brake 18 is not actuated, the brake control section 34 actuates the brake 18.SELECTED DRAWING: Figure 1

More Like This:
Inventors:
FUJII SHOTA
SAITO SO
Application Number:
JP2018047528A
Publication Date:
September 19, 2019
Filing Date:
March 15, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FANUC LTD
International Classes:
H02P3/22
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi