A stepper motor is an electromechanical device which converts electrical pulses into discrete mechanical
movements. The shaft or spindle of a stepper motor rotates in discrete step increments when electrical
command pulses are applied to it in the proper sequence.The stepper motor has a step angle of 5.625 degrees (64 steps per revolution) with a 64:1 ratio gearbox giving an effective 4096 pulse per revolution
1. The rotation angle of the motor is proportional to the input pulse.
2. The motor has full torque at standstill(if the windings are energized)
3.Precise positioning and repeatability of movement since good stepper motors have an accuracy of – 5%
of a step and this error is non cumulative from one step to the next.
4. Excellent response to starting/stopping/reversing.
Very reliable since there are no contact brushes in the motor. Therefore the life of the motor is simply
dependant on the life of the bearing.
5.The motors response to digital input pulses provides open-loop control, making the motor simpler and
less costly to control.
6.It is possible to achieve very low speed synchronous rotation with a load that is directly coupled to the
7.A wide range of rotational speeds can be realized as the speed is proportional to the frequency of the
See the datasheet below for the motor specification.