Rotation speed control method of controllable speed crane driver and crane driver

摘要

speed control method of controllable speed crane drive motor and crane drive a method according to the invention of controlling a motor speed rotation of a controllable speed crane drive comprises receiving a speed instruction lifting (omega 'm), formation of a final speed instruction (omega m) using initial information containing the lifting speed instruction (omega' m); and using the final lift speed instruction (omega m) as a speed instruction for the rotational speed of the controllable speed crane drive motor. the method also comprises monitoring a position derivative of a real cable force value (df / dz). the initial information for forming the final speed instruction (omega m) comprises the position derivative of the actual cable force value (df / dz).