Method for determining the inertia factor of a motor assembly of a lift assembly

摘要

The method involves connecting an output of an electric motor assembly (38) through a suspension rope with a lift cage (12). An excitation signal with frequency in the range of 10-100 Hz is provided to the motor assembly and the motion of the motor assembly is detected to generate a motion signal accordingly. The moment of inertia factor of the electric motor assembly is determined based on the generated motion signal. Independent claims are included for the following: (1) method for adjusting control circuit; (2) control device; and (3) lift.