I’m trying to make an automated steam turbine so replacing what the governor would do with a plc. it’s hand drawn based off the software of studio 5000 using ladder logics and rungs. This isn’t for real world use I’m just trying to create a complex program
I’m a little lost as plc programming is not my strong suit at all. I’ll break down what I’ve got so far and if anyone is able to give insight that would be great.
Step 1) PLC is going to use Input 1 to turn on a boiler that will feed steam to the turbine
Step 2.) lubrication of the system so that it doesn’t run dry and destroy itself. This part will run the entire time the turbine runs and will only stop lubricating when the machine is off.
Step 2 .) let’s start up the machine using input 2. I’m a little confused with this part when Im programming it. Am I able to just throw it straight on a rung With a lubrication output so that both can run and stop simultaneously?
Step 3.) opening my steam admission valve. When I open It should stay open as long as the turbine is running in safe working conditions. Let’s say that 4000 rpm is what it’s rated at. I’m a little confused as to where or what I need to put into the program so that the valve would close if it passed 4000rpm. Not fully closed but could go anywhere from 0% opened to 100% opened and anywhere in between. As it should regulate and not shut down. Is that even possible?
Step 4.) when I create an emergency shutdown protocol which would be my trip system, would I have to link it to my lubrication and turbine operation (input 2)? Or would I need a whole new input for that?