ABNORMALITY DIAGNOSIS DEVICE FOR ELECTRIC MOTOR EQUIPMENT, ABNORMALITY DIAGNOSIS METHOD FOR ELECTRIC MOTOR EQUIPMENT, AND ABNORMALITY DIAGNOSIS SYSTEM FOR ELECTRIC MOTOR EQUIPMENT

摘要

This abnormality diagnosis device for electric motor equipment is provided with a monitoring diagnosis unit for diagnosing abnormalities of an electric motor and a power transmission mechanism on the basis of a monitoring result of current flowing through a power supply line of the electric motor. The monitoring diagnosis unit is provided with: an analysis unit for performing frequency analysis on the current; and an abnormality diagnosis unit for diagnosing the abnormalities of the electric motor and the power transmission mechanism from the result of the frequency analysis.