Servo Motor | High Dynamic Response Drive

Key Advantages

Extremely low rotor inertia delivers breakthrough acceleration. Under the same torque output, its acceleration capability far exceeds conventional servo motors, perfectly meeting the demands of high-frequency repetitive handling. The highly Compact Mechanical Design not only saves internal equipment space but also reduces the overall weight of moving parts. Even under extreme dynamic changes, it maintains high-precision position and speed control, ensuring smooth trajectory tracking without step loss or oscillation.

Working Principle

Inside the stator, there are excitation and control windings that are 90° apart in space. When the control winding is connected to an AC voltage with the same frequency but a different phase from the excitation voltage, a rotating magnetic field is generated in the air gap. This field cuts the rotor conductors to produce electromagnetic torque, driving the rotor to rotate synchronously with the field. The core breakthrough of this Low Inertia AC Servo Motor lies in the ultra-lightweight rotor structure (such as a slender permanent magnet design). By drastically reducing mechanical inertia, the motor can respond to control signal phase changes within an extremely short electromechanical time constant, instantly generating high acceleration for high-frequency starts/stops and precise trajectory following.

Application Fields

1.Electronic packaging equipment: extremely high-acceleration micro-motion control for chip wire bonders.
2.Lithium battery electrode manufacturing: frequent rapid starts/stops for high-speed winding or die-cutting equipment.
3.Precision laser processing: fast trajectory tracking for laser scanning galvanometers.
4.Automated assembly lines: high-speed pick-and-place manipulators for high-frequency repetitive handling.

FAQ

Q1: Why must high-acceleration equipment use this Low Inertia AC Servo Motor?

A: Equipment acceleration depends on the ratio of output torque to load (including rotor) inertia. If the rotor is heavy, most torque is consumed overcoming its own inertia. A lightweight rotor outputs greater acceleration under the same torque for faster response.

Q2: Is this motor prone to oscillation during high-speed emergency stops?

A: No. Despite the low inertia, it must be paired with a servo drive featuring high response frequencies and advanced auto-tuning. The drive calculates optimal control gains in real-time to suppress mechanical resonance, ensuring fast and stable stopping.

Q3: Does the Compact Mechanical Design affect the motor's torque output?

A: No. By utilizing high-energy-density rare-earth permanent magnets, we maintain high torque density while reducing volume and weight, ensuring powerful performance within a compact installation space.

Technical Specifications