Kabushiki Kaisha Yaskawa Denki

Atsushi Imadu

Yasuyuki Takei

Kazuhide Takao

In a method of automatically setting the vibration suppression filter, when a vibration detection portion detects a vibration A, a state variable frequency analysis portion analyzes the frequencies of data from a state variable trace portion to calculate a vibration frequency A, and the frequency characteristics of the vibration suppression filter is set based on vibration frequency A. A vibration level store portion stores the vibration level before the automatic setting of the vibration suppression filter, a filter setting selection portion compares the vibration level after the automatic setting with the vibration level before the automatic setting A. When the vibration level after the automatic setting is larger than the vibration level before the automatic setting, restoring of the setting of the vibration suppression filter to the state before the automatic setting Aand/or reducing the gain of a servo control portion.

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Fukuoka, Japan

Atsushi Imadu