MOTOR HAVING BRAKE

PURPOSE:To provide the motor having a brake, which can suppress the workload of an electromagnetic brake at the OFF time of a voltage and can stop the rotation of the rotor readily in the short time, at the low cost. CONSTITUTION:Capacitors 7 are connected to stator coils 1a of a motor 1 when a power supply is OFF, with normally closed contact points 2b of an electromagnetic contactor 2 for a main circuit. Thus, the motor l is operated as the self-excited induction generator. Part of rotating energy caused by inertial rotation is absorbed by the motor 1 itself. Thus, the proper distribution of the absorbed amount of the rotating energy can be automatically obtained between the motor itself 1 and an electromagnetic brake 4. The workload of the electromagnetic brake can be sufficiently suppressed without the delay in stopping time.