ABB 3HNA024871-001 编码器模块

3HNA024871-001 is a controller, its essence is the AC motor equivalent to the DC motor, respectively, the speed, the magnetic field two components of independent control. By controlling the rotor flux linkage, and then decomposing the stator current, the torque and magnetic field components are obtained, and orthogonal or decoupled control is realized by coordinate transformation.

In addition, this controller adopts a change tap type design, the autotransformer is made into multiple fixed taps, and the relay or thyristor (solid state relay) as the switch, automatically change the tap position, so as to achieve the stability of the output voltage. This design makes the controller has the advantages of simple circuit, wide voltage regulation range (130V-280V) and low price. However, its voltage stability accuracy is relatively low (±8 ~ 10%), and the working life may also be short. Therefore, it is mainly suitable for home to air conditioners and other equipment power supply.