What are the advantages and disadvantages of stepper system (Stepper motor)


Stepper motor - DC current generates a magnetic field.It is constant current system. Torque drops off as a function of speed due to the number of rotor poles.

Advantages of Stepper motor

Simple design
Simple control
Excellent low speed torque
Excellent low speed smoothness
Lowe overall system cost

Disadvantages of Stepper motor

Torque decreases as speed increases
Constant current regardless of requirement
No method to overcome position loss