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：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：US20150340960A1

公开(公告)日：2015-11-26

申请号：US14719697

申请日：2015-05-22

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Shigenori TAKAYAMA ,  Satoshi SUESHIMA ,  Keisei INOKI

IPC: H02M5/297

CPC classification number: H02M1/32 ,  H02H3/05 ,  H02H7/0844 ,  H02H7/1216 ,  H02M5/297

Abstract: A power conversion apparatus includes a power converter to directly convert AC power having a frequency into AC power having a different frequency. A gate driver drives the power converter. A gate drive signal generator generates a gate drive signal supplied to the gate driver. Two cutoff devices are coupled between the gate driver and the gate drive signal generator, and supply or cut off the gate drive signal to the gate driver based on a command from an external apparatus. At least one of the two cutoff devices generates a feedback signal. An analyzer determines whether the one cutoff device has an abnormality based on the command and the feedback signal. A cutoff controller controls another one of the two cutoff devices to cut off the gate drive signal to the gate driver when the analyzer determines that the one cutoff device has the abnormality.

Abstract translation: 电力转换装置包括电力转换器，用于将具有频率的AC电力直接转换成具有不同频率的AC电力。 门驱动器驱动电源转换器。 栅极驱动信号发生器产生提供给栅极驱动器的栅极驱动信号。 两个截止装置耦合在栅极驱动器和栅极驱动信号发生器之间，并且基于来自外部装置的命令将栅极驱动信号提供或切断到栅极驱动器。 两个截止装置中的至少一个产生反馈信号。 分析器基于该命令和反馈信号来确定一个截止装置是否具有异常。 当分析仪确定一个截止装置具有异常时，截止控制器控制两个截止装置中的另一个切断装置将栅极驱动信号切断到栅极驱动器。

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.

公开(公告)号：US20240006974A1

公开(公告)日：2024-01-04

申请号：US18251350

申请日：2021-10-26

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Shinsuke KAJIWARA ,  Mio KISAKI ,  Taiga AKIYAMA ,  Satoshi SUESHIMA ,  Takeshi HORIBE ,  Kazumasa IKEDA

IPC: H02M1/00

CPC classification number: H02M1/0009 ,  H02M1/0067

Abstract: A power conversion system comprises: a plurality of power conversion devices; and a master controller capable of communicating with the plurality of power conversion devices by a serial communication channel. The master controller transmits the same control command to the plurality of power conversion devices by serial communication via the serial communication channel, and the plurality of power conversion devices each perform power conversion from the primary side to the secondary side on the basis of the same control command.