Closed Loop Stepper Motor Control System

The position of the motor is always monitored and then the driver automatically switches between 2 types of control depending on the situation.

Closed loop stepper motor control system.

Closed loop stepper motor system. For this reason closed loop controllers are also called feedback controllers. 110vac kl 11008 hybrid servo driver closed loop control. Ai servo is a closed loop stepper motor system developed by autonics.

A closed loop controller therefore has a feedback loop which ensures the controller exerts a control action to give a process output the same as the reference input or set point. The system offers accurate and precise position control through feedback from the integrated encoder. The motor system can control motion of multiple axes directly with network communication. Nema34 closed loop stepper motor system hybrid servo kit 32 bit dsp based 1128 oz in.

Common names for this architecture include closed loop stepper control or servo. Closed loop stepper systems supply the motor with just enough current to control the load and this results in much less audible noise than open loop setups. Stepper motor systems using closed loop control represent a small percentage of stepper motor applications but if loss of position could be catastrophic to the application yet the system requires high torque at low speed relatively simple architecture and relatively low cost compared to a true servo motor system a closed loop stepper might be the most appropriate solution. The aica series ai servo motors are ac powered 2 phase closed loop stepper motor system featuring integrated drivers and controllers.

The encoder feedback provides information of the current position of the motor in reference to the input pulse. The encoder is used as a feedback source in a position loop which adjusts the torque requirements in real time. Alphastep products are stepper motor based hybrid motors with a unique hybrid control system combining the benefits of open loop control and closed loop control. The encoder is also being used in a current loop to determine the proper electrical angle to apply to the motor.

To produce the test results shown in the plot of acoustic noise accompanying this article the acoustic noise of each system is measured in a soundproof chamber. Closed loop stepper motor.