Detección de fallas de control y programación de un PLC S7-1200 en un sistema de arranque con arrancador suave en el laboratorio de mantenimiento correctivo-Facultad de Mecánica

Abstract

This Curricular Integration Research sets as an objective the implementation of a circuit that allows the detection of control and programming failures by means of a PLC S7 1200 in a starting system with soft starter in the automatic control module of the Corrective Maintenance Laboratory of Faculty of Mechanics. In order to do this, first, the proper functioning of the elements were verified, where the thermal relays and a timer were dismantled, to optimize space, then the selection and installation of a circuit for the detection or control and programming failures were carried out, the electronic elements that were implemented are the PLC 1215C DC/DC/DC, the soft starter Sirius 3RW40, router and the ultra Slim relay, The circuit wiring was performed under the 1EC 60757 standard, the programming of the control fault and error programming in TIA Portal software under the 1EC 61131 standard, the HMI was programmed in DOPSoft which allows to execute industrial processes from the screen, furthermore, two different ways of communication between the PLC and the computer were used, the communication through the ethernet ort and the online communication. Programming blocks have been made for the following processes: start-up system under normal conditions, start-up system with control failure, start-up system with programming failure and fault history log. The simulation of the control fault is overheating and the programming fault is a restart, these are recorded and exported in a .csv format in order to analyze and make decisions.