Does the stepping motor and servo motor have self-locking?
When the motor is stopped, if the load has a reverse torque on the shaft of the motor, the motor will inevitably turn. Just as the motion is produced, the servo itself produces torque to restore the position of the motor. And the response speed is very much related to the adjustment of the servo parameters. For example, if the motor is too soft, the response is slow, and if the machine is too hard, it can cause a shock. In general, ac servo so-called rest, is a state of dynamic balance, the motor is always in a slight shake, just when the amplitude of rock is small enough (1-5 of the encoder resolution), can be considered to be static. When a large external force is suddenly added to the motor, the range of the wobble increases abruptly and then gradually responds. Vibration and response speed are the problems that must be noted in the use of ac servo in precision process control. The step motor has enough current when there is no load at all, so there must be a torque. However, when the external force is greater than the holding torque, lead to the motor shaft position changes, even if the external force, stepping motor will not return to its original position, this is the biggest trouble in stepper motor use - out of step.
No, the step servo has a self-lock, not a power switch.No, the step servo has a self-lock, not a power switch.
Normally the electricity is self-locking. Of course, the lock can be removed and controlled as needed.
