Abstract

Along with science's and technology's development, the recent years, our

country's elevator production technology obtained the rapidly expand. Some elevator

factory unceasingly is also improving the design, the revision craft. The renewal

production renewal's elevator, the elevator mainly divides into the mechanical system

and the control system two major parts, along with the automatic control theory and

microelectronic technology's development, elevator's dragging way and the control

method has had the very big change, the exchange velocity modulation is the current

elevator dragging main development direction. At present the lift control system

mainly has three control modes: Following electric circuit control system (“early

installment elevator many black-white control system), PLC control system,

microcomputer control system. Because the black-white control system the failure

rate is high, the reliability is bad, control mode not nimble as well as consumed power

big and so on shortcomings, at present

has been eliminated gradually.

磁鈕ywo齐量s果

PLC elevator controllable -like programmer