公开(公告)号：US11527986B2

公开(公告)日：2022-12-13

申请号：US16952821

申请日：2020-11-19

Applicant: SEMES CO., LTD.

Inventor： Jun Beom Lee ,  Yeong Jae Choi

IPC: H02P29/028 ,  H02P23/20 ,  B65G1/04

Abstract: An apparatus includes a servo motor being configured to drive a traveling part for transferring an object along a traveling rail, a servo driver being configured to control an operation of the servo motor with adjusting a torque of the servo motor according to a load level, an overload determination unit being configured to check a degree of overload of the servo driver and a motion controller being configured to generate a speed signal and a speed profile according to a transfer command which a control unit of controlling an operation of the traveling part transmits thereto, the motion controller generating either a normal speed profile when the servo driver is not at an overload state or a corrected speed profile when the servo driver is at the overload state, and transmitting the speed signal and the speed profile to the servo driver.