Novel lift door control system

Abstract

The invention provides a novel lift door control system. The novel lift door control system comprises a machine room upper computer and a motor and frequency converter integrated machine, wherein themachine room upper computer is provided with a +24V port, a CANBUS+ port, a CANBUS- port and a +24V public port. The motor and frequency converter integrated machine comprises a motor and a frequencyconverter. The frequency converter is connected with the motor. The frequency converter is provide with a +24V port, a CANBUS+ port, a CANBUS- port and a +24V public port. The connection between the ports of the machine room upper computer and the ports with the same names of the frequency converter is realized through lift car traveling cables. The bottom of the motor is provided with a containing groove. The frequency converter is arranged in the containing groove. The motor is a 24V permanent magnet synchronous motor. By means of the scheme, through the motor and frequency converter integrated scheme, the 24V low-voltage motor is adopted, the creep distance is reduced, the rectifying link in a traditional scheme is omitted, the 24 power supply is directly adopted, many cables in the traditional scheme are omitted, the cost for wire harnesses is saved, the on-site tedious wiring is omitted, use is easier, and meanwhile reliability is increased.

Description

technical field [0001] The invention relates to the field of elevator control devices, in particular to a novel elevator door control system. Background technique [0002] In the traditional door machine control system, it consists of two parts: the elevator machine room and the elevator car roof, which are electrically connected through accompanying cables. The elevator machine room is equipped with a power distribution box and an elevator system control host; the elevator car top includes an elevator car top communication board, a special inverter for the elevator door machine, and an AC220V series motor. The accompanying cables include "mains L line", "mains N line" and communication protocol cables, among which "mains L line" and "mains N line" supply power for "special inverter for elevator door machine", and the communication protocol The cable is responsible for transmitting the communication protocol between the "computer room host computer" and the "elevator car to...

AI Technical Summary

Problems solved by technology

[0005] In the traditional solution, the AC-DC-AC hardware topology is used, and the motor is a high-voltage motor with a voltage of 220V, which requires a relatively large voltage support as a whole, and the safety factor is relatively low. There are also many cables, which lead to cumbersome wiring and insufficient reliability during specific installation, and more equipment is involved, which further increases the cost

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