Stator and Rotor
The stator houses three-phase windings that generate a rotating magnetic field when the drive outputs alternating current. The rotor is typically constructed from high-performance permanent magnet materials; it generates torque under the influence of the magnetic field, driving the motor's rotation. The precision fit between the stator and rotor determines the motor's output performance and operational efficiency.
Mechanical Structure
This includes components such as the motor shaft, bearings, front and rear end shields, and the motor housing. The shaft transmits mechanical power, while the bearings support the rotor for smooth, high-speed operation. The housing protects internal components and aids in heat dissipation. To ensure operational precision, the rotor typically undergoes dynamic balancing to minimize vibration and noise.
Detection System
This is a key feature distinguishing B&R servo motors from standard motors. A high-resolution encoder or resolver is typically mounted at the rear of the motor to monitor rotational speed, position, and direction in real time, feeding this data back to the servo drive. The drive continuously adjusts control commands based on this feedback-creating a closed-loop control system-to achieve high-precision positioning and stable operation.
