Motor controller and method for controlling motor
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsYusuke OKA, Tadashi OKUBO, Katsumi OUCHIDA
Life of this patent
Estimating the term…
Abstract
A motor controller includes memory, and processing circuitry that controls a motor based on a position command and based on a position detection value corresponding to a detected position of the motor, calculates a tolerance position error in a successive manner based on the position command and based on a control parameter used to control the motor, calculates a position error maximum threshold that depends on the tolerance position error, detects an abnormality based on the position error maximum threshold, and triggers an indication when the abnormality is detected.
Claims20
A motor controller, comprising:
- memory;
- and
- processing circuitry configured to control a motor based on a position command and based on a position detection value corresponding to a detected position of the motor, calculate a tolerance position error in a successive manner based on the position command and based on a control parameter used to control the motor, calculate a position error maximum threshold that depends on the tolerance position error, detect an abnormality based on the position error maximum threshold, and trigger an indication when the abnormality is detected.
A method for controlling a motor, comprising:
- controlling the motor based on a position command and based on a position detection value corresponding to a detected position of the motor;
- calculating a tolerance position error in a successive manner based on the position command and based on a control parameter used in the controlling the motor;
- calculating a position error maximum threshold that depends on the tolerance position error;
- detecting an abnormality based on the position error maximum threshold;
- and
- triggering an indication when the abnormality is detected.
Dependencies are inferred from the claim text.