Control system modernization of core manufacturing machine PGM20

Predstavil bom možnost posodobitve krmilja na stroju za izdelavo jeder, ki se uporabljajo pri croning postopku formanja (oblikovanja) ulitkov. Obstoječe krmilje, je izvedeno s kontaktorji KO, kar predstavlja težje delo vzdrževalcem, posledično pa tudi večje število zastojev. Po študiju literature, sem se odločil za uporabo krmilnika S7-200 proizvajalca Siemens. Po izbiri krmilnika, sem določil tehnološke zahteve, pri katerih sem izločil nekatere funkcije stroja, ki niso več v uporabi. Nato je sledila izdelava osnovne strukture koračnega krmilja, ter funkcijskega diagrama. Naslednja stopnja je bilo pisanje programa, z uporabo programa STEP7I am going to present an option of upgrading the machine control for the manufacture of cores used in croning formating castings process. The existing controller is carried out by contactors KO which is presenting harder work for maintainers, and consequently a greater number of setbacks. After studying literature I decided to use S7-200 controller from manufacturer Siemens. After selecting the controller, I selected certain technological requirements and I eliminated some of the features of the machine that are no longer in use. Then followed the production of the basic structure of the stepper control and functional diagram. The next stage was writing a program using the STEP7