Early warning motor

The utility model relates to a variable frequency motor, aiming at solving the defects that before no accident occurs, the existing pre-alarm equipment can not lead the operator to find problems in time so as to cause the accident. The adopted measures are as follows: an early warning motor consists of a rotor 1, a stator winding 2, a stator 3, a rotating shaft 4, bearing seats 5, a front end cover 6, a rear end cover 7, a fan 8 and a bearing 16, wherein a three-phase winding coil of the stator winding 2 is respectively provided with a winding temperature sensor 9; the front end cover 6 and the rear end cover 7 are respectively provided with a fixed hole 10, and the two bearing seats 5 are respectively provided with a hole 11; one end of a bearing temperature sensor 12 is fixedly connected with the fixed hole 10, and the other end thereof is arranged in the hole 11; the winding temperature sensor 9 and the bearing temperature sensor 12 are respectively connected with a PLC programmer 13, and an alarm 14 is co