Servo motor phase finding method, device, driver and storage medium
By performing DC braking and determining the displacement direction during the servo motor phase-finding process, the problem of stall detection during servo motor phase-finding is solved, thus achieving accuracy and reliability in servo motor phase-finding and avoiding phase-finding errors caused by encoder direction errors.
CN115473468BActive Publication Date: 2026-05-26CHINA LEADSHINE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA LEADSHINE TECH CO LTD
- Filing Date
- 2022-08-26
- Publication Date
- 2026-05-26
Smart Images
Figure CN115473468B_ABST
Abstract
This invention discloses a servo motor phase-finding method, apparatus, driver, and storage medium. The method includes: performing a first DC braking and determining the braking angle corresponding to the completion of the first DC braking as a first braking angle; determining a second braking angle for a second DC braking based on the first braking angle and the direction of a first displacement generated during the first DC braking process; completing the second DC braking based on the second braking angle and determining the second displacement generated during the second DC braking process; determining the phase-finding result or determining whether the servo motor is stalled based on the first displacement and the second displacement. By determining the phase-finding result of the servo motor or determining whether the servo motor is stalled based on the first displacement and the second displacement, the problem of inaccurate phase-finding caused by stalling during the current servo motor phase-finding process is avoided.
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