Anomaly diagnosis apparatus and anomaly diagnosis method

Abstract

An anomaly diagnosis apparatus includes a command generation unit that generates a command value to specify the operation of a motor or a drive machine, a drive control unit that performs feedback control on the motor based on a control gain so that the operation of the motor or the drive machine follows the command value, a data switching unit that switches selected time-series data by selecting data from time-series data indicating the state of the motor or the drive machine, based on the result of a comparison between a control bandwidth determined from the control gain and a threshold determined from the drive machine, and an anomaly determination unit that determines an anomalous state of the motor or the drive machine, based on the selected time-series data.

Dependencies are inferred from the claim text.