I have 3 compressors connected to a tank. For example, the air pressure always remains at 6 bar inside the tank. The problem here is that the tank powers 5 rams, and I want it to provide power as needed, that is, to run 2 if the needs are high, and if they are low, I operate only one, which must be The number of hours per day is divided by 3, which means that each compressor must operate 8 hours per day, I want to make a servo
How compressors will recognize, do you need more power?
what does it means?
that's depend to the rams. when 3 or more rams are working i should operate 2 compressors, when < 3 i should operate only one
i meant it should be automatic
That just shifts the questions that @b707 was asking, it doesn't answer it. So I'll ask. How do you know when 3 or more rams are working?
Do you need to consider what to do when you need to take a compressor off line for service?
OK, now tell us how each compressor knows when to turn on! Is there a single pressure sensor that turns them all on? Or does each compressor have it's own pressure sensor switch?
by a pressure sensors or something like that
there is a single sensor in the tank, the mecanisme of the compressors makes the compressors work as the tank need, so i need to know how i can make them drop the consommation and devide the work between them.
i need to make them consume less energy and devide the work between them.
Have you actually done the study to show that there will be a savings by running one compressor for a longer time is cheaper that running three compressors for a short time?
that's depend to the number of the rams when you use a single one you don't have to run all the compressors for example one compressor is enough. and the compressors should work the same time i mean devide the time between them equaly
So you have not done a cost/benefit analysis.
However all the sensors are there for your Arduino to use, and it can use SSR for each contactor to control a compressor. what is completely lacking is how are you telling the Arduino which of the three rams is being used. The rest of the logic is pretty simple.
I use a compressor on which the pressure switch is replaced by an Arduino. This was one of my first projects.
The main goal was to be able to turn on and off the compressor remotely, as well as regulate the pressure limits on it by radio.
Has been operating since 2018, in 24/7 mode.
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