CONSTRUCTION LIFT SYSTEM AND A METHOD FOR CONTOLLING THE SAME

摘要

According to the present invention, provided are a lift system for a construction work and a control method thereof comprising: a main driving motor which is operated to move a lift car for construction up and down; an operating panel including a lever switch for enabling a driver to operate the lift car for construction, and a panel input part for inputting reservation floor information for reversing a floor where the lift car for construction is operated; a PLC unit for controlling the transfer of the lift car for construction by applying an ascending or descending operating signal about the lift car for construction using the reservation floor information inputted through the lever switch and the panel input part; an inverter unit connected to the main driving motor for controlling the operation state of the main driving motor by applying power supplied through a power cable from an electricity system in a separate construction site to the main driving motor according to an inverter control signal of the PLC unit; and a sensing unit including an encoder for sensing a rotation number of the main driving motor and for transferring a rotation number sensing signal to the PLC unit. [Reference numerals] (400) Line sensing part; (710) PLC controlling part; (720) PLC calculating part; (730) PLC storage part; (901,901a) Encoder; (903) Regenerative power wattmeter; (C2) Lever switch; (C3) Panel input part; (C4) Panel display; (D) Door switch; (LMT) Reference position switch