Can a vector motor perform stop and start moves similar to a servomotor?
A vector motor can indeed perform stop and start moves similar to a servomotor. The primary difference between a vector motor and a servomotor (other than the electrical differences) is the vector motors rotor inertia. Vector motors use a variation of the standard squirrel cage rotor motor. Its rotor consists of steel laminations and aluminum or copper bars. The laminations and bars add mass to the rotor. The vector motor also has a larger diameter rotor than that of the servomotor as well. This larger diameter along with the rotors mass adds to the vector motors moment of inertia. The vector motors moment of inertia is generally larger than that of a servomotor. The larger inertia limits the acceleration that the vector motor can provide, but does not prevent the motor from starting and stopping repeatedly when properly sized.
