Boring machine spindle and feed motor to high-speed operation, why should the first low-speed start
Low-speed low-power motor due to the system inertia is small, the rotor speed and stator magnetic field speed difference is relatively small, and more direct start
Feed motor is generally stepping, but also because of the impact of inertia, starting speed will make the machine lost step, and thus greatly affect the feed accuracy, for servo, then will allow more steep acceleration, but the cost is much higher
First said spindle, the motor power high speed, if the direct start, at the moment of the moment due to the existence of moment of inertia, the equivalent of stall operation, easy to burn the motor or burn the drive.
