Integrated protection controller for wireless intelligent motor

Abstract

The invention discloses an integrated protection controller for a wireless intelligent motor. The integrated protection controller comprises a DSP processing center, a power supply, a DI input unit, a DO output unit, a dot-matrix color LCD, a ZigBee wireless network, a 485 bus communication network, a 232 serial communication network, an AO output unit and a keyboard; wherein the ZigBee wireless network, the 485 bus communication network and the 232 serial communication network are respectively connected with the centralized control, monitor and display device of an upper computer. The power supply adopts 380VAC alternating current which is converted through an AD converter after passing through a voltage acquisition device and a current transformer. The DSP processing center is connected with a start-stop button and an emergency stop button. Compared with the prior art, the integrated protection controller has the advantages that on-site construction and wiring are not required, so that cables can be reduced; the construction and the networking are simple, later maintenance to the equipment can be simplified, intelligent control can be realized, failures can be predicated, eliminated and examined on line in real time, the production capacity can be improved, and the cost can be saved.

Description

Technical field: [0001] The invention relates to a motor protection device. Background technique [0002] The motor protector is a new type of electronic multifunctional motor comprehensive protection device developed in the last ten years. It integrates low-voltage protections such as over (light) load protection, phase loss, over (under) voltage, locked rotor, leakage, grounding and three-phase unbalance protection. It has high setting accuracy, power saving, sensitive action and reliable operation. And other advantages, it is an ideal substitute for traditional thermal relays. It is usually composed of several parts such as current sensor, comparison circuit, DSP or single-chip microcomputer, and export relay. At present, there are foreign products such as AB and Schneider on the market, and there are many domestic brands such as Zhuhai Tuopu and Yada. It should be said that domestic motors Protector manufacturers have been developed in the past 10 years, and are now in...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a wireless intelligent motor integrated protection controller to overcome the problems of laying a large number of cables, digging trenches, and erecting bridges in the prior art, increasing costs, high maintenance costs, and difficult troubleshooting. The amount of information collected is small, real-time monitoring is impossible, and intelligence cannot be achieved.

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