公开(公告)号：US20190235960A1

公开(公告)日：2019-08-01

申请号：US16258935

申请日：2019-01-28

申请人： FANUC CORPORATION

发明人： Sou Saito ,  Tsutomu Shikagawa

IPC分类号： G06F11/14 ,  H02P27/06 ,  G01R19/165 ,  H02M5/458 ,  G06F12/16

CPC分类号： G06F11/1441 ,  G01R19/16528 ,  G06F12/16 ,  H02M5/4585 ,  H02P27/06

摘要： A motor driving device includes: a rectifier circuit for rectifying an AC input voltage supplied from an AC power supply to a DC voltage; a smoothing capacitor for smoothing the rectified DC voltage; a relay that outputs a contact signal when the input voltage is input to the rectifier circuit from the AC power supply; an input voltage detector for detecting the input voltage; a capacitor voltage detector for detecting the capacitor voltage; a volatile first storage; a nonvolatile second storage; and a backup start determiner for determining whether or not to start a backup operation of transferring the information stored in the first storage to the second storage, based on at least one of the contact signal, the input voltage and the capacitor voltage.

公开(公告)号：US10054640B2

公开(公告)日：2018-08-21

申请号：US15202707

申请日：2016-07-06

申请人： FANUC CORPORATION

发明人： Sou Saito ,  Tsutomu Shikagawa

IPC分类号： G01R31/00 ,  G01R31/327 ,  H02P3/22

CPC分类号： G01R31/3278 ,  H02P3/22

摘要： A motor driving device includes, a DB current calculation unit which calculates a DB current flowing through a DB circuit, based on the motor rotational speed and intrinsic parameters for a motor and the DB circuit, a Joule heat calculation unit which calculates a Joule heat resulting from a DB current, based on the DB current, a storage unit which stores a table defining the relationship between the DB current at the start of DB and the Joule heat resulting from an arc generated in a relay depending on the DB current, an integration unit which integrates the Joule heat resulting from an arc at the start of DB, the Joule heat resulting from a DB current, or the sum of these Joule heats, every time DB is performed, and a comparison unit which outputs the comparison result between the resultant integration value and a predetermined reference value.

公开(公告)号：US20170108071A1

公开(公告)日：2017-04-20

申请号：US15289238

申请日：2016-10-10

申请人： FANUC CORPORATION

发明人： Sou Saito ,  Tsutomu Shikagawa ,  Kiichi Inaba

IPC分类号： F16D66/02

CPC分类号： F16D66/022 ,  B60T17/221

摘要： A motor drive apparatus includes: a motor current detection unit; a brake release determination unit that determines that the brake is not released when the motor current detected when the motor is operated under a predetermined load by application of a voltage to a brake coil is larger than a current for when the brake is normally released; a brake coil voltage change unit that changes a voltage applied to the brake coil when it is determined that the brake is not released to a larger value; a change history storage unit that stores the voltage after being changed and change date and time; and a life prediction unit that calculates a predicted life of the brake apparatus based on the voltage after being changed and the change date and time and the previously stored failure-time brake coil voltage.

公开(公告)号：US20170063205A1

公开(公告)日：2017-03-02

申请号：US15241243

申请日：2016-08-19

申请人： FANUC CORPORATION

发明人： Minoru Kobayashi ,  Tsutomu Shikagawa ,  Kiichi Inaba

IPC分类号： H02K11/33

CPC分类号： H05K7/209 ,  H05K7/20163 ,  H05K7/20418

摘要： An apparatus with a motor drive device is provided with a support plate including an opening part for supporting the motor drive device. The support plate includes a first edge part around the opening part and a second edge part on the opposite side of the first edge part. The motor drive device includes a first recessed part formed on one end part in a predetermined direction, and a second recessed part formed on the other end part on the opposite side of the one end part. The first edge part is inserted into the first recessed part, and the second edge part is inserted to the second recessed part.

摘要翻译： 具有马达驱动装置的装置设置有支撑板，该支撑板包括用于支撑马达驱动装置的开口部。 支撑板包括围绕开口部分的第一边缘部分和在第一边缘部分的相对侧上的第二边缘部分。 马达驱动装置包括形成在一个预定方向的一个端部上的第一凹部和形成在该一个端部的相反侧的另一个端部的第二凹部。 第一边缘部分被插入到第一凹进部分中，并且第二边缘部分被插入第二凹进部分。

公开(公告)号：US20170016958A1

公开(公告)日：2017-01-19

申请号：US15202707

申请日：2016-07-06

申请人： FANUC CORPORATION

发明人： Sou Saito ,  Tsutomu Shikagawa

IPC分类号： G01R31/327 ,  H02P3/22

CPC分类号： G01R31/3278 ,  H02P3/22

摘要： A motor driving device includes, a DB current calculation unit which calculates a DB current flowing through a DB circuit, based on the motor rotational speed and intrinsic parameters for a motor and the DB circuit, a Joule heat calculation unit which calculates a Joule heat resulting from a DB current, based on the DB current, a storage unit which stores a table defining the relationship between the DB current at the start of DB and the Joule heat resulting from an arc generated in a relay depending on the DB current, an integration unit which integrates the Joule heat resulting from an arc at the start of DB, the Joule heat resulting from a DB current, or the sum of these Joule heats, every time DB is performed, and a comparison unit which outputs the comparison result between the resultant integration value and a predetermined reference value.

摘要翻译： 马达驱动装置包括：DB电流计算单元，其基于马达旋转速度和电动机和DB电路的固有参数来计算流过DB电路的DB电流;焦耳热计算单元，其计算焦耳热量 基于DB电流的DB电流存储一个存储单元，该存储单元存储定义DB开始时的DB电流与根据DB电流在继电器中产生的电弧产生的焦耳热之间的关系的表格，积分 单元，其在DB开始时积分由电弧产生的焦耳热，由DB电流产生的焦耳热，或每次执行DB时这些焦耳热的总和以及输出比较结果的比较单元 合成积分值和预定参考值。

公开(公告)号：US09021873B2

公开(公告)日：2015-05-05

申请号：US13887826

申请日：2013-05-06

申请人： Fanuc Corporation

发明人： Tsutomu Shikagawa ,  Yasuyuki Matsumoto

IPC分类号： G01M19/00 ,  G01M13/00 ,  G01L5/28 ,  B25J9/16 ,  G05B19/406

CPC分类号： G01M13/00 ,  B25J9/1674 ,  G01L5/28 ,  G05B19/406 ,  G05B2219/41279

摘要： A brake abnormality diagnosis device which diagnoses an abnormality in a brake of a brake-equipped motor provided in a robot or a machine tool, includes: an abnormality diagnosis unit which performs a diagnosis as to whether or not there is an abnormality in the brake, while the motor is excited and the brake is activated; and an output unit which, if it is diagnosed that there is an abnormality in the brake, notifies the abnormality in the brake without interrupting the excitation of the motor and without releasing the brake.

摘要翻译： 一种用于诊断设置在机器人或机床中的配备制动器的马达的制动器的异常的制动器异常诊断装置，包括：异常诊断单元，其对制动器中是否存在异常进行诊断， 而电机被激励并且制动器被激活; 以及输出单元，如果被诊断出制动器存在异常，则在不中断马达的励磁而不释放制动的情况下通知制动器中的异常。