The difference between open loop stepper motor and closed lo

time:2019-06-15 Browse:


The difference between open loop stepper motor and closed loop stepper motor


   Stepper motors can be divided into open loop stepper motors and closed loop stepper motors. Then the problem comes. What is the difference between an open-loop stepper motor and a closed-loop stepper motor?

   The fundamental difference between an open-loop stepper motor and a closed-loop stepper motor is whether it will feed back the current running status signal.

   The open-loop stepper motor has no feedback signal and is only executed in sequence. On the contrary, the closed-loop stepper motor feedback signal is based on the signal stepper motor driver to take corresponding action measures or signal feedback to the PLC, and the PLC determines the next program processing.

   In some cases, some people refer to closed-loop stepper motors as hybrid servo motors.

   Next, analyze the advantages of closed-loop stepper motors.

   First, closed-loop control improves the characteristics of the moment frequency.

   Second, under closed-loop control, the output power/torque curve is increased, and the current value is determined by the motor load. Therefore, even in the low speed range, the current can be fully converted into torque.

   Third, with closed-loop control, the stepper motor can be accelerated and decelerated automatically and efficiently.


 

Closed loop stepper motor

Closed loop stepper motor


Open loop stepper motor
Open loop stepper motor

 

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