Back to results
US 11,163,272 B2Granted
Servo parameter adjustment device and servo parameter adjustment method
AssigneeOMRON Corporation
InventorsKenji Nakajima, Mamoru Egi, Yasushi Ono, Fumiaki Sato
Life of this patent
Estimating the term…
Abstract
In order to improve usability during parameter adjustment, this adjustment device performs a simulation in which a set value of a servo parameter received during a slide operation period of a slider bar is reflected in a FFT analysis result of response characteristics of speed control or position control, and the simulation display of the frequency characteristics and phase characteristics is updated on the adjustment screen.
Claims16
A servo parameter adjustment device, comprising:
- a processor, configured to:
- display an adjustment screen for adjusting a servo parameter set in a servo control device of a motor that drives a control target;
- receive a set value of the servo parameter which is variable according to an operation direction and an operation amount associated with a slide operation of a slider bar displayed on the adjustment screen;
- perform an FFT analysis of a response characteristic of a speed control or a position control of the motor performed according to a predetermined servo parameter and generates graph data of a frequency characteristic and a phase characteristic for displaying an FFT analysis result of the response characteristic on the adjustment screen;
- and
- display the frequency characteristic and the phase characteristic in a predetermined area of the adjustment screen based on the generated graph data,
- wherein the processor performs a simulation in which a set value of the servo parameter received during a slide operation period of the slider bar is reflected in an FFT analysis result of the response characteristic of the speed control or the position control and generates graph data of the simulated frequency characteristic and phase characteristic,
- the processor updates a display of a frequency characteristic and a phase characteristic of the adjustment screen based on graph data of the simulated frequency characteristic and phase characteristic, and
- the processor searches from a low frequency area for a peak frequency at which a gain value related to the speed control reaches a peak from graph data of the frequency characteristic, and sets and displays the searched peak frequency as an initial value of the slider bar, which is operated by a slide operation, of a servo parameter to be adjusted.
6 more elements
A servo parameter adjustment method comprising:
- a step that displays an adjustment screen for adjusting a servo parameter set in a servo control device of a motor that drives a control target;
- a reception step that receives a set value of the servo parameter which is variable according to an operation direction and an operation amount associated with a slide operation of a slider bar displayed on the adjustment screen;
- a calculation step that performs an FFT analysis of a response characteristic of a speed control or a position control of the motor performed according to a predetermined servo parameter and generates graph data of a frequency characteristic and a phase characteristic for displaying an FFT analysis result of the response characteristic on the adjustment screen;
- and
- a display control step that displays the frequency characteristic and the phase characteristic in a predetermined area of the adjustment screen based on the generated graph data generated by the calculation step,
- wherein the calculation step performs a simulation in which a set value of the servo parameter received during a slide operation period of the slider bar is reflected in an FFT analysis result of the response characteristic of the speed control or the position control and graph data of the simulated frequency characteristic and phase characteristic,
- the display control step updates a display of a frequency characteristic and a phase characteristic of the adjustment screen based on graph data of the simulated frequency characteristic and phase characteristic, and
- the display control step searches from a low frequency area for a peak frequency at which a gain value related to the speed control reaches a peak from graph data of the frequency characteristic, and sets and displays the searched peak frequency as an initial value of the slider bar, which is operated by a slide operation, of a servo parameter to be adjusted.
5 more elements
Dependencies are inferred from the claim text.