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    • 5. 发明专利
    • Control device
    • 控制装置
    • JP2009015448A
    • 2009-01-22
    • JP2007174296
    • 2007-07-02
    • Fanuc Ltdファナック株式会社
    • OKITA HAJIMETOYOSAWA YUKIOSONODA NAOTO
    • G05D19/02H02P29/00
    • G05B19/19G05B13/024G05B2219/34048G05B2219/37534G05B2219/41166G05B2219/41232
    • PROBLEM TO BE SOLVED: To provide a control device which correctly detects a natural frequency of a control object driven by a motor, and reduces the natural oscillation of the control object. SOLUTION: The control device 10 has: a control means to output a control signal which controls a servo motor 21; a frequency analysis means 12 which controls the control object while suppressing the natural oscillation of the control object containing the motor 21 and machinery driven by this motor 21 and analyzes components of the frequency contained in a torque instruction; an analysis control means 13 which controls execution or stop of this means 12; a detection means 14 which detects the natural frequency of the control object from an analysis result of the means 12; a band stop filter 15 to which a torque instruction J is input and which outputs an instruction J in which a component of the natural frequency is removed from the torque instruction J through a current control means 11c and a servo amplifier 20 to the motor 21; and a filter characteristic setting means 16 which sets the frequency to be removed based on the natural frequency detected by the detection means 14 to the filter 15. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种正确地检测由电动机驱动的控制对象的固有频率并减少控制对象的自然振荡的控制装置。 解决方案:控制装置10具有:输出控制伺服电动机21的控制信号的控制装置; 频率分析装置12,其控制控制对象,同时抑制包含电动机21的控制对象和由该电动机21驱动的机械的自然振荡,并分析包含在转矩指令中的频率的分量; 控制该装置12的执行或停止的分析控制装置13; 检测装置14,根据装置12的分析结果检测控制对象的固有频率; 输入转矩指令J的带阻滤波器15,并且通过电流控制装置11c和伺服放大器20向马达21输出从转矩指令J除去固有频率的分量的指令J; 以及滤波器特性设定单元16,其根据由检测单元14检测出的固有频率将滤波器的频率设定为滤波器15.版权所有(C)2009,JPO&INPIT