Advantages and disadvantages of stepper motor
Top advantages of stepper motor
1.Flexibility
because of special constructions of steppers motor provides constant torque so that stepper motor used in a wide range.
2.Greater Torque
if servo motor and stepper motor same size then at the lower speed stepper motor torque greater than servo motor torque.
3.Lower cost than servo motor
for the position control and speed control in the stepper motor no needs any close loop feedback system. so costs are reduced than servo motor.
4.Stepper motor has a long-life
stepper motor maximum moving part frictionless. so used moving component bear long time.
5.stepper motor consider being safer
stepper motor considered to be safer because of any break occurred in machine immediate stepper motor stopped.
6.Best Low-Speed Torque
stepper motor provides the best low-speed torque, which means stepper motor drive many different loads without any additional use of gearing or gearbox mechanisms.
7.Reliability
stepper motors are very reliable because the maximum portion frictionless so stepper motors long life.
Top Disadvantage of stepper motor
1.Low Efficiency
stepper motor efficiency too lower.
2.Relation between torque and speed
in stepper motor torque is inversel proportional to the speed hence slightly changed in torque rapid change in speed.
3. Stepper Motor Very Noisy
At moderate speeds to high speed stepper motor create very noises.
4.Lower Torque to inertia ratio
Stepper motor having lower torque to inertia ratio means stepper motor speed can not accelerate on loads very rapidly .
5.Low accuracy
when compared stepper motor and servo motor we observe stepper motor accuracy lower than servo motor.
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