Control y Monitoreo de un Variador de Frecuencia por Medio de un PLC y Software LABVIEW.

Abstract

A control and monitoring of a frequency changer has been carried out by means of a PLC and software Lab VIEW tobe use dat the Laboratory of a Mechanics Industrial Control of the ESPOCH. The module has been made for the future main tenance engineer, so that the students can improve their skills at the automation area de control and equipment monitoring, therefore they can apply their know led gewith devices such as PLC and frequency changer. A system of communication is included as a protocol of communication Modbus TCP/IP, getting communication among different element soft he module. Know ledge is strengthened on the program LabVIEW, and the bank of essay sof essays should have a computer connected to an et work. The first step is to installin the computer the software of PLC and LabVIEW to from and PLC their components. Then, the information of the computer is entered by means a serial cable. After that, the serial cables is taken away and the wireless is connected to the Access Point (previously for med), and by means the Ether net port is c onnected to the Access Point. From the computer the converter RS232/485 is connected to the frequency changer to the terminal points (+) and (–) for the communication Mod bus RTU. The development programin the LabVIEW covers the functions needs of different connected elements. By means of this process the changer frequency control was achieved with the acquired signals of PLC.