Hi I would like to fit a (motion sensor/IR sensor) sensor switch to a machine in my catering van. The machine is a 12v machine.
I would like to start the machine using the sensor switch and would like to work for 60 seconds. Once 60 seconds have passed, I’d like it to turn off.
however, it gets a little more complicated,I would only like it to turn off, if there is no power going to compressor (again 12v). If the compressor is getting power, I’d like to leave the machine on.
so once the sensor switch start, the machine would turn on:
it should only turn off if 60 seconds have passed and the compressors is NOT getting power.
If the compressor is getting power, the machine should stay on, until it (the compressor) stops getting power.
....And it gets more complicated...Above a certain temperature inside the machine, I would like it turn back on, the compressor will automatically kick back in.
Any ideas, and knowledge in how to set this up will be much appreciated. Ideally it will be a reliable system and have minimal circuit boards as I need something that’s I can rely on and will work in hot weather.
I will also have a bypass switch so I can control the power to the machine and compressor manually.(This is how I currently control the machine.)