公开(公告)号：US20240162845A1

公开(公告)日：2024-05-16

申请号：US18549175

申请日：2022-03-09

Applicant: FANUC CORPORATION

Inventor： Tetsuro MATSUDAIRA ,  Yoshinori SAKAI ,  Shuuji KUDOU ,  Yoshikiyo TANABE ,  Toshihiro FUJIMORI

IPC: H02P27/08 ,  H02M1/00 ,  H02P29/024

CPC classification number: H02P27/08 ,  H02M1/007 ,  H02P29/024 ,  H02P2201/07

Abstract: A motor control device includes a DC/DC converter that steps up or steps down a voltage of a direct current power source and performs charging, while controlling an inrush current to a smoothing capacitor; a monitor circuit for the output of the DC/DC converter; and a control part that turns the operation of the DC/DC converter on and off, and turns the DC/DC converter off when the monitor circuit has detected an abnormality.

公开(公告)号：US20150212496A1

公开(公告)日：2015-07-30

申请号：US14608713

申请日：2015-01-29

Applicant: FANUC Corporation

Inventor： Yoshikiyo TANABE ,  Hisashi MOMOTANI ,  Yoshiki HASHIMOTO

IPC: G05B9/02 ,  F16P3/12 ,  H02P3/04 ,  G05B19/048 ,  G05B19/406

CPC classification number: G05B9/02 ,  F16P3/14 ,  G05B19/0428 ,  G05B19/048 ,  G05B19/406 ,  H02P29/0241

Abstract: A servomotor control device includes a servomotor control circuit for controlling an inverter such that an alternating current is supplied to a servomotor when receiving a safety signal, and for controlling the inverter such that the alternating current is not supplied to the servomotor when not receiving the safety signal, and a servomotor monitoring circuit for stopping the servomotor by stopping transmission of the safety signal to the servomotor control circuit when determining to stop the servomotor, and for stopping the servomotor by disconnecting supply of a direct current to the inverter with a power source disconnect circuit and stopping the transmission of the safety signal to the servomotor control circuit when determining that at least one of the power source disconnect circuit, the safety signal, and the servomotor control circuit is not normal.

Abstract translation: 伺服电动机控制装置包括：伺服电动机控制电路，用于控制逆变器，使得当接收到安全信号时交流电被提供给伺服电动机，并且用于控制逆变器，使得在不接收到安全性时不向伺服电动机提供交流电 信号和伺服电动机监视电路，用于通过在确定停止伺服电动机时停止向伺服电动机控制电路传输安全信号，并且通过断开电源与逆变器的供电来停止伺服电机而停止伺服电机，电源断开 并且当确定电源断路电路，安全信号和伺服电动机控制电路中的至少一个不正常时，停止向伺服电机控制电路传输安全信号。

公开(公告)号：US20220355484A1

公开(公告)日：2022-11-10

申请号：US17788798

申请日：2021-01-18

Applicant: FANUC CORPORATION

Inventor： Tetsuro MATSUDAIRA ,  Yoshikiyo TANABE

IPC: B25J9/16 ,  G01R19/165

Abstract: A controller of a robot includes: a voltage detecting portion that detects a power-source voltage input from a power source; and a determining portion that determines, on the basis of the power-source voltage detected by the voltage detecting portion, whether to perform power-outage processing that guarantees the operation, wherein the determining portion includes a first timer that starts a clock at a point in time when the detected power-source voltage becomes equal to or less than a first threshold voltage that guarantees the operation and makes a determination for performing the power-outage processing in the case in which the power-source voltage does not exceed the first threshold voltage before the time measured by the first timer achieves a prescribed time that is longer than one cycle of the power-source voltage.

公开(公告)号：US20160031086A1

公开(公告)日：2016-02-04

申请号：US14811868

申请日：2015-07-29

Applicant: FANUC Corporation

Inventor： Yoshikiyo TANABE ,  Yoshiki HASHIMOTO

IPC: B25J9/16

CPC classification number: B25J9/1694 ,  Y10S901/01 ,  Y10S901/02 ,  Y10S901/46 ,  Y10S901/50

Abstract: A mobile collaborative robot includes a force sensor which is provided on a robot support on a carriage, a robot information acquisition unit which acquires robot information including posture information of the robot main body and load information of a load acting on the robot main body, a force calculation unit which calculates the external force acting on the robot support based on the robot information, and a judgment unit which judges that the mobile collaborative robot has come into contact with a human when a difference between the external force detected by the force sensor and the external force calculated by the force calculation unit is above a predetermined value α or when a difference between the amount of change in the detected external force and the amount of change in the calculated external force is above a predetermined value α1.

Abstract translation: 移动协同机器人包括提供在滑架上的机器人支撑上的力传感器，机器人信息获取单元，其获取包括机器人主体的姿势信息和作用在机器人主体上的负载的负载信息的机器人信息， 力计算单元，其基于所述机器人信息来计算作用在所述机器人支撑体上的外力;以及判断单元，其判断所述移动协作机器人与所述力传感器检测到的外力之间的差与所述人力 由力计算单元计算出的外力高于预定值α，或者当检测到的外力的变化量与所计算的外力的变化量之间的差异高于预定值α1时。

公开(公告)号：US20210191377A1

公开(公告)日：2021-06-24

申请号：US17108126

申请日：2020-12-01

Applicant: FANUC CORPORATION

Inventor： Satoshi MATSUMOTO ,  Yoshikiyo TANABE

IPC: G05B23/02

Abstract: A control apparatus for controlling an industrial machine includes a deterioration diagnostic unit that has a diagnostic function, which is repeatedly executed at predetermined timing, for diagnosing deterioration of each component of the industrial machine and outputs an alarm signal in response to deterioration equal to or more than a predetermined level in each component, an alarm control unit that outputs a stop command to the industrial machine based on the alarm signal and informs that the industrial machine is in an alarm stop state, and a cancellation operation receiving unit that receives the cancellation operation for cancelling the alarm stop state regardless of deterioration of each component. The deterioration diagnostic unit cancels the alarm stop state brought on by the diagnostic function based on the cancellation operation, and allows the industrial machine to operate until the diagnostic function is executed next.

公开(公告)号：US20200287474A1

公开(公告)日：2020-09-10

申请号：US16789166

申请日：2020-02-12

Applicant: FANUC CORPORATION

Inventor： Yoshikiyo TANABE ,  Satoshi MATSUMOTO

IPC: H02M5/458 ,  H02M7/537

Abstract: A power supply according to the present disclosure includes: a step-down circuit which has at least one pair of positive/negative step-down switching elements; at least one pair of positive/negative inductors to which voltage is applied via the step-down switching element, and one pair of positive/negative output capacitors which are connected in series and charged by electrical current passing through the inductor, and steps down input voltage and then outputs; an inverse-conversion circuit which has a plurality of inverse-conversion switching elements, and inverse-converts output voltage of the step-down circuit into alternating current; and a control circuit which controls switching of the plurality of step-down switching elements so that the output voltage of the step-down circuit becomes a desired voltage.

公开(公告)号：US20190148935A1

公开(公告)日：2019-05-16

申请号：US16165595

申请日：2018-10-19

Applicant: FANUC CORPORATION

Inventor： Nozomu HASEGAWA ,  Yoshikiyo TANABE

IPC: H02H9/06

Abstract: A surge protective circuit is connected between a single-phase AC power source and an apparatus that operates with electric power supplied from the AC power source to suppress an overvoltage applied from the AC power source to the apparatus. The surge protective circuit includes: a first constant-voltage device and a first discharge device connected in series between a first ground terminal and a non-ground-side terminal of the AC power source; and a second constant-voltage device and a second discharge device connected in series between a second ground terminal and a ground-side terminal of the AC power source. A midpoint between the first constant-voltage device and the first discharge device and a midpoint between the second constant-voltage device and the second discharge device are connected.

公开(公告)号：US20150316111A1

公开(公告)日：2015-11-05

申请号：US14699041

申请日：2015-04-29

Applicant: FANUC Corporation

Inventor： Yoshikiyo TANABE ,  Yoshiki HASHIMOTO

IPC: F16D65/14

CPC classification number: B60T13/748 ,  B60T17/18 ,  F16D63/002 ,  F16D65/14 ,  F16D2121/20 ,  H02P15/00 ,  H02P29/0241

Abstract: A brake drive control circuit of a servo motor which detects malfunction of a semiconductor circuit at the brake drive control circuit, that is, a brake drive control circuit which connects two semiconductor circuits in series to a brake and uses a voltage detection circuit which detects the presence of voltage which is applied to the brake by brake signals turning the semiconductor circuits on/off so as to detect test pulses in the voltage which is applied to the brake due to test pulses which are included in the brake signals and turn the semiconductor circuits off for instants during an operation for disengaging the brake and detect malfunctions of the semiconductor circuits by the detection of the test pulses.

Abstract translation: 伺服电动机的制动驱动控制电路，其检测制动驱动控制电路上的半导体电路的故障，即将两个半导体电路串联连接到制动器的制动驱动控制电路，并使用电压检测电路， 通过制动信号使半导体电路接通/断开而施加到制动器上的电压的存在，以便检测由于包含在制动信号中的测试脉冲而施加于制动器的电压的测试脉冲，并转动半导体电路 在用于分离制动的操作期间的时刻断开，并且通过检测测试脉冲来检测半导体电路的故障。

公开(公告)号：US20210146983A1

公开(公告)日：2021-05-20

申请号：US17099559

申请日：2020-11-16

Applicant: FANUC CORPORATION

Inventor： Tetsuro MATSUDAIRA ,  Toshihiro FUJIMORI ,  Yoshikiyo TANABE

IPC: B62B3/16 ,  B62B3/14

Abstract: A stackable control device is equipped with a plurality of casters provided on a side of a bottom surface, and a support member provided on an upper surface and configured to support a control device that is stacked on a side of the upper surface. Two from among the plurality of casters sandwich the support member of a control device that is stacked on the side of the bottom surface.

公开(公告)号：US20200220482A1

公开(公告)日：2020-07-09

申请号：US16717922

申请日：2019-12-17

Applicant: FANUC CORPORATION

Inventor： Yoshikiyo TANABE ,  Katsuhiro WATANABE

IPC: H02M7/797 ,  H02M7/06 ,  H02M7/539

Abstract: A power supply includes: a rectifier circuit which has a plurality of rectifier switching elements, and separately extracts a positive voltage and a negative voltage for every phase from a primary power source of three-phase alternating current, respectively; a smoothing circuit which has a pair of smoothing capacitors connected in series to each other to be charged by the rectifier circuit, and a plurality of smoothing inductors respectively arranged between the rectifier circuit and the smoothing capacitors; a inverter circuit which has a plurality of inverter switching elements and inverts output of the smoothing circuit into alternating current; and a control circuit which controls switching of the plurality of rectifier switching elements so that output voltage of the smoothing circuit becomes a desired voltage, and electrical current flowing to each phase of the rectifier circuit becomes a desired electrical current.