1. A motor comprising:a stator including windings; and
a rotor rotated by a rotation field generated when drive currents are supplied to the windings;
wherein the windings include a first winding and a second winding, in which the first winding and the second winding are synchronously excited by the drive currents and connected in series;
the rotor includes a magnet pole, which includes a permanent magnet, and a flux toleration portion;
the flux toleration portion is opposed to the second winding at a rotational position of the rotor where the magnet pole opposes the first winding, and the flux toleration portion tolerates generation of a flux linkage resulting from a field weakening current at the second winding.