| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor-preventive maintenance device enabling an objective determination of an abnormality of a motor independently of a worker's skill and ability, thereby contributing to preventing the motor from suddenly failing. <P>SOLUTION: A motor-preventive maintenance device performs: obtaining an amount of operation (a load factor) of a motor from a motor drive device and a state amount of the motor (a coil temperature-rise value) that has correlation with the obtained amount of operation, from a sensor installed in the motor; collating a correlation evaluation model with evaluation-use data representing a relationship between a specific state amount and the amount of operation obtained during the operation of the motor to thereby determine a degree of coincidence between the evaluation-use data and correlation evaluation model; and monitoring an abnormality of the motor on the basis of the aforementioned degree of coincidence. <P>COPYRIGHT: (C)2012,JPO&INPIT |
