公开(公告)号：US20180107170A1

公开(公告)日：2018-04-19

申请号：US15843432

申请日：2017-12-15

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Koji IWAHASHI ,  Satoshi SUESHIMA ,  Yasushi KIBE ,  Takeshi UEDA

IPC: G05B9/03 ,  H02P3/06 ,  G05B99/00 ,  H02P6/06

CPC classification number: G05B9/03 ,  G05B19/0423 ,  G05B99/00 ,  G05B2219/15117 ,  H02P3/06 ,  H02P6/06 ,  H02P6/08 ,  H02P2207/05

Abstract: An electric motor drive control system includes an electric motor drive control device, a manual command device connected to the electric motor drive control device, a radio that performs radio communication with a telecommunication device that is a radio connection destination, and processing circuitry that sets a radio communication mode in which the radio responds to a radio connection request from the telecommunication device to establish a radio connection, the radio communication mode being set when the manual command device issues no manual command.

公开(公告)号：US20170294861A1

公开(公告)日：2017-10-12

申请号：US15634173

申请日：2017-06-27

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Koji IWAHASHI ,  Satoshi SUESHIMA ,  Tetsuo YANAGIMOTO ,  Yuto KUBO ,  Yuki KAWAFUCHI

IPC: H02P27/06 ,  G05B19/418 ,  F21V8/00 ,  G08B5/36

CPC classification number: H02P27/06 ,  G02B6/0045 ,  G02B6/0068 ,  G02B6/0075 ,  G05B19/418 ,  G05B2219/32128 ,  G08B5/36

Abstract: An LED indicator 4 connected to industrial machinery including an inverter 1, includes: an LED substrate 8 into which a display control signal according to a state relating to the industrial machinery is input; and a plurality of displays 31, 32, and 33 configured to display in a lighting state corresponding to a state of the industrial machinery, on the basis of the display control signal input by the LED substrate 8. The plurality of displays 31, 32, and 33 each include a partially circular-arc shape, and are generally arranged in an approximately annular shape. The plurality of displays 31, 32, and 33 include the two displays 31, 32 that generally configure a half ring at one side of the approximately annular shape, and the one display 33 that generally configures a half ring at the other side of the approximately annular shape.

公开(公告)号：US20150102797A1

公开(公告)日：2015-04-16

申请号：US14513216

申请日：2014-10-14

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hirofumi KINOMURA ,  Joji EBISU ,  Koji IWAHASHI

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M5/297

Abstract: A matrix converter includes: a power convertor that includes a plurality of bidirectional switches configured to control a conducting direction using a plurality of switching elements; a command generator configured to generate a control command for a PWM control on the plurality of switching elements; and a commutation controller configured to perform a commutation control on the plurality of bidirectional switches in a case where the control command changes. In a case where the control command changes during execution of the commutation control, the commutation controller executes a handover step for handover to a next commutation control and then executes the next commutation control from a step in a course of the next commutation control.

Abstract translation: 矩阵转换器包括：功率转换器，其包括被配置为使用多个开关元件来控制导通方向的多个双向开关; 命令发生器，被配置为产生用于所述多个开关元件的PWM控制的控制命令; 以及换向控制器，被配置为在所述控制命令改变的情况下对所述多个双向开关执行换向控制。 在执行换向控制期间控制命令改变的情况下，换向控制器执行切换步骤，以切换到下一个换向控制，然后在下一个换向控制的过程中从一个步骤执行下一个换向控制。

公开(公告)号：US20240333191A1

公开(公告)日：2024-10-03

申请号：US18733842

申请日：2024-06-05

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Koji IWAHASHI ,  Satoshi SUESHIMA ,  Toshiaki TSURUDA

IPC: H02P27/06

CPC classification number: H02P27/06

Abstract: A power conversion system includes: a plurality of power modules; and a control module connected to the plurality of power modules, wherein the control module includes: a current source configured to supply a switch drive current; and a main switch configured to cut off the switch drive current supplied by the current source in response to an external abnormality detected outside the power conversion system, wherein each module of the plurality of power modules includes: power conversion circuitry configured to output electric power; a power-off switch configured to cut off the electric power from the power conversion circuitry in response to a disappearance of the switch drive current supplied by the current source; and an input cutoff switch configured to cut off the switch drive current to the power-off switch in response to an internal abnormality detected inside the module, and wherein the current source and the main switch are connected to the power-off switch and the input cutoff switch for each of the plurality of power modules to provide a series connection including the plurality of power modules.