APPARATUS FOR PLANNING MAINTENANCE OF ELECTRIC MOTOR

摘要

PURPOSE: A preventative maintenance apparatus of an electric motor is provided to objectively determine an error of the electric motor by using an index of coincidence of a correlation evaluation model and data for evaluation. CONSTITUTION: A control input obtaining member obtains a control input of an electric motor(1) from an electric motor driving device(2). A state quantity obtaining member obtains quantity of state of the electric motor through a sensor. A correlation evaluation model memory member memorizes the control input and a correlation evaluation model. A coincidence determination member determines an index of coincidence of the correlation evaluation model and data for evaluation. An error monitoring member senses an error of the electric motor based on the index of coincidence.