公开(公告)号：US20240309925A1

公开(公告)日：2024-09-19

申请号：US18264929

申请日：2022-03-23

申请人： FANUC CORPORATION

发明人： Hitoshi ISHIDA

IPC分类号： F16D66/00 ,  F16D121/22 ,  H02P29/024

CPC分类号： F16D66/00 ,  H02P29/024 ,  F16D2121/22

摘要： A brake control device for controlling a power-off brake device, the brake control device comprising: a power supply controlled so as to output a voltage or so as not to output a voltage in accordance with a power supply control signal; a brake control unit for outputting a brake control signal; an opening/closing unit for opening/closing an electric circuit between the power supply and the brake device in accordance with the brake control signal; a state detection unit for outputting a state detection signal indicating the potential state of the electric circuit between the opening/closing unit and the brake device; an abnormality detection unit for detecting whether or not an abnormality has occurred on the basis of a combination of the details of the brake control signal and the details of the state detection signal; and a power supply control unit for outputting, as the power supply control signal for the power supply, an output-off signal for controlling the power supply so as not to output a voltage when the abnormality detection unit determines that an abnormality has occurred.

公开(公告)号：US20240056003A1

公开(公告)日：2024-02-15

申请号：US18264758

申请日：2022-03-24

申请人： FANUC CORPORATION

发明人： Hitoshi ISHIDA

IPC分类号： H02P3/04 ,  F16D65/18

CPC分类号： H02P3/04 ,  F16D65/18 ,  F16D2121/22

摘要： A brake control device for controlling a brake device of the non-excitation-actuated type includes: a power supply; a brake control unit outputting a brake control signal; an opening/closing unit opening and closing a circuit between the power supply and brake device according to the brake control signal; a state detection unit outputting a state detection signal indicating an electric potential state of a circuit between the opening/closing unit and the brake device; an abnormality detection unit detecting whether an abnormality is absent or present based on a content of the brake control signal and a content of the state detection signal; a brake lock switch connected between input terminals of the brake device to be connected in parallel with the brake device; and a brake lock switch control unit closing the brake lock switch when the abnormality is detected by the abnormality detection unit.

公开(公告)号：US20180287519A1

公开(公告)日：2018-10-04

申请号：US15925478

申请日：2018-03-19

申请人： FANUC CORPORATION

发明人： Hitoshi ISHIDA

IPC分类号： H02P3/12 ,  H02P15/00 ,  G01R19/15 ,  G01R19/165

摘要： Provided is a motor drive device including: a current detector that detects a current flowing through a power line supplying power to a brake-equipped motor; and a controller that controls the brake-equipped motor based on the current value detected by the current detector. The controller includes a determination part that determines, when actuating the brake-equipped motor whose brake is in a braking state, states of the power line and the brake-equipped motor, based on the current value detected by the current detector after applying a voltage between the power lines. The controller outputs a release instruction signal for releasing the brake when the determination part determines that the states are normal.