公开(公告)号：US20110215748A1

公开(公告)日：2011-09-08

申请号：US12968491

申请日：2010-12-15

申请人： Makoto Saruwatari ,  Hiroaki Narita

发明人： Makoto Saruwatari ,  Hiroaki Narita

IPC分类号： H02P1/18

CPC分类号： G05B23/00 ,  H02P1/18 ,  Y10T307/625

摘要： An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A portion for supplying power during a power failure, a power failure detection circuit, and a motor power supply switching circuit are provided in a module detachably coupled to the electric actuator. When failure of primary power is not detected, the power is sent to the electric actuator by the motor power supply switching circuit. When failure of the primary power is detected, secondary power is sent to the electric actuator by the motor power supply switching circuit. In addition, notification of the power failure is sent from the module to the control board of the electric actuator, via a relay connector. After being notified of the power failure, the control board reads a specified aperture during a power failure from a memory, and drives the motor with secondary power from the module as the energy source, thereby setting the aperture of the valve to the aperture during a power failure.

摘要翻译： 提供具有与用作普通电动致动器或具有紧急关闭功能的电致动器相同的构造的电致动器。 在电动执行器可拆卸地连接的模块中设置有在断电期间供电的部分，断电检测电路和电动机电源切换电路。 当未检测到主电源故障时，通过电机电源切换电路将电力发送到电动执行机构。 当检测到主电源故障时，二次电源由电动机电源切换电路发送到电动执行机构。 另外，通过中继连接器将电源故障的通知从模块发送到电动执行器的控制板。 在通知电源故障之后，控制板从存储器发生电源故障时读取指定的光圈，并将来自模块的次级电源的电动机作为能量源驱动，从而在一段时间内将阀的孔径设置为孔径 电源（检测）失败。

公开(公告)号：US20110215749A1

公开(公告)日：2011-09-08

申请号：US12968499

申请日：2010-12-15

申请人： Makoto Saruwatari ,  Hiroaki Narita

发明人： Makoto Saruwatari ,  Hiroaki Narita

IPC分类号： H02P1/18 ,  H02J9/06

CPC分类号： G05B23/00 ,  H02P1/18 ,  Y10T307/625

摘要： An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A power failure detection circuit, a portion for supplying power during a power failure, a motor power supply switching circuit, a power failure control signal generation circuit, and a control signal switching circuit are provided in a module detachably coupled to the electric actuator. When failure of the primary power is not detected, the motor power supply switching circuit and the control signal switching circuit send the primary power and a signal indicative of a setting of an aperture of a valve of the electric actuator, respectively, to the electric actuator. When failure of the primary power is detected, the motor power supply switching circuit and the control signal switching circuit send the secondary power and the signal indicative of the setting of the aperture during a power failure to the electric actuator.

摘要翻译： 提供具有与用作普通电动致动器或具有紧急关闭功能的电致动器相同的构造的电致动器。 电力故障检测电路，电源故障时供电的部分，电动机电源切换电路，停电控制信号生成电路以及控制信号切换电路设置在与电致动器可拆卸地连接的模块中。 当没有检测到主电源的故障时，电动机电源切换电路和控制信号切换电路分别将电力执行器的主电源和表示电动致动器的阀的开度的设定信号发送到电致动器 。 当检测到主电源故障时，电动机电源切换电路和控制信号切换电路将电力故障期间的二次电力和指示孔径设定的信号发送到电致动器。

公开(公告)号：US20110215747A1

公开(公告)日：2011-09-08

申请号：US12968464

申请日：2010-12-15

申请人： Makoto Saruwatari ,  Hiroaki Narita

发明人： Makoto Saruwatari ,  Hiroaki Narita

IPC分类号： H02P1/18

CPC分类号： G05B23/00 ,  H02P1/18 ,  Y10T307/625

摘要： An electric actuator is provided having the same configuration whether used as an ordinary electric actuator or as an electric actuator having an emergency shutoff function. A relay connector is provided in an electric actuator. When a module for supplying power during a power failure is connected, a first drive output signal generated by a motor drive circuit is relayed to the module and a motor power switching circuit is provided in the module. When the AC power supply does not fail, the first drive output signal sent from the electric actuator is selected; when the AC power supply fails, the second drive output signal generated by the motor drive circuit is selected and is sent to the AC motor of the electric actuator, via the relay connector.

摘要翻译： 提供具有与用作普通电动致动器或具有紧急关闭功能的电致动器相同的构造的电致动器。 在电致动器中设置有中继连接器。 当连接用于在断电期间供电的模块时，由电动机驱动电路产生的第一驱动输出信号被中继到模块，并且在模块中提供电动机功率切换电路。 当交流电源不失败时，选择从电动执行机构发出的第一驱动输出信号; 当交流电源出现故障时，选择由电机驱动电路产生的第二驱动输出信号，并通过继电器连接器发送到电动执行器的交流电机。