Availability of logic that allows to manually set the timings purge steaming and cooling. As well as configuring for data operations. Thus, For example, selecting a program providing for the operator to do not purge in time and by the value of the gauge. The presence of alerting the operator. For example, if during an automatic cycle, the accident occurred, it is necessary inform the operator about it. Then the operator takes the installation in manual mode and completes the cycle under his own control. Find a Solution: The first step is to replace manual ball valves to supply pair in block form for automatically operated ball valves. Were selected ball valves are equipped with pneumatic actuators and limit switches in order to tap in the event of failure or for some reason neotkryvaniya it was able to identify this automation problem and inform the operator about the accident.
To drive the door lock and load valve in block form of cylinders were used, also equipped with position sensors or end- breakers – to identify emergency situations in case of failure or lock nezakryvaniya door. Control of pneumatic actuators was taken to using the terminal systems. On task required that the operation of steaming and cooling systems have the ability to control the pressure in block form. Namely: the completion of the operation should take place steaming and cooling to achieve some particular pressures. That is, as soon as the required pressure is reached, the operation is completed. For this purpose very well come contact gauges. The choice of automation Aries As the controller was chosen OWEN PLC 100 with two expansion modules MDVV. This equipment is ideal for automation unit form as all the input signals arriving at the controller input and output signals from the controller are discrete.
Also a big plus for the selection of the controller was that included with the controller is supplied free software for PLC programming and detailed instructions with a description and examples. Program PLC has been written with CoDeSys SFC and CFC. The program consists of a sequence of steps. In each step the analysis of the input signals from limit switches valves, cylinders and pin gauges. If input signals satisfy the condition, the output signal to control pneumatic and magnetic starters. At the end of the cycle of forming the foam block the program returns to the first step and stands in the standby mode as long as the operator presses the "Start" button. Also, for visualization and human-machine communication has been selected operator panel FE-320. This panel is used to display information about the sintering the block of foam and input time intervals for the operation of "blowing", "Steaming", "cool" and "push" as well as to select the configuration "Steaming" and "cool." For example, you can choose before starting the cycle of "cooling" is not on time, as indicated by the gauge. Changing these parameters allows to achieve better performance shop and product quality. Video of the block form can be look at the site of industrial automation VyatkStroyDetal GP.