A hybrid VR stepping motor has 8 main poles which have been castellated to have 5 teeth each. If the rotor has 50 teeth calculate the stepping angle.
A hybrid VR stepping motor has 8 main poles which have been castellated to have 5 teeth each. If the rotor has 50 teeth calculate the stepping angle.
Right Answer is:
1.8°
SOLUTION
Step angle of the hybrid stepper motor is given by
$\beta = \dfrac{{{N_r} – {N_s}}}{{{N_s} \times {N_r}}} \times {360^ \circ }$
Where
Ns = Number of stator teeth
Nr = Number of rotor teeth
Given that
Nr = 50
Ns = 8 x 5 = 40
∴ stepping angle can be calculated as
$\beta = \frac{{50 – 40}}{{50 \times 40}} \times {360^ \circ }$
β = 1.8°