ELECTRIC MOTOR WITH BRAKE

摘要

An electric motor with a brake, having a function as a holding brake, includes a brake resistor including three resistors. In a normal state, the brake resistor is such that the three resistors are connected together at ends on one side and at ends on another side and are connected to a brake DC power supply in parallel to each other. In an emergency or an event of an emergency stop, the brake resistor is such that the three resistors are connected together at the ends on one side to form a Y-connection and the ends on another side that are not connected together are electrically connected to the output end of a stator coil of an electric motor or an end having a potential equal to that of the output end.

主权项

1. An electric motor with a brake, the electric motor having a function of a holding brake, the electric motor comprising
a brake resistor that includes three resistors, wherein in a normal state, the brake resistor is such that the three resistors are connected together at ends on one side and at ends on another side and are connected to a direct-current power supply in parallel to each other, and in an emergency or in an event of an emergency stop, the brake resistor is such that the three resistors are connected together at the ends on one side to form a Y-connection and the ends on another side that are not connected together are electrically connected to output ends of a stator coil of the electric motor, respectively, so as to form pairs.