Inverter Flying Start Control Method [Invention]

The invention combines software and hardware to ensure accurate and fast detection of motor running speed under any condition.

Ensure that the motor can start up quickly and smoothly after unexpected shutdown.

Methods for self-learning function of floor and position correction of elevators for building construction [Invention]

A method of building construction hoist self-learning floor functions by applying traditional elevator integrated controller to building construction hoist and removing floor switches for space considerations, then self-learning floor functions by a series of operation of maintenance switch, well self-learning switch, floor confirmation switch and maintenance slow switch.Without the floor switch, the floor function of the elevator for building construction can be realized.

A position correction method is also disclosed which, when the position of the elevator deviates, directly brings the elevator to the actual floor platform position and uses self-learnt data to correct it, resulting in a significant increase in operational efficiency compared with traditional practices.