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+--- Thread: KC868-A8 input 230V (/showthread.php?tid=2410)
KC868-A8 input 230V - oxc - 11-25-2022
Hello,
I want to use the outputs of a KC868-A8 to control 8 of my heating valves. They require 230V and not too much power, this should work fine.
However, I would like to use the inputs to read the state of the wall thermostats. These are usually connected directly to the valves, and are therefore delivering 230V if closed. Can you recommend a good way how I could connect these to the KC868-A8 inputs?
Thanks you!
RE: KC868-A8 input 230V - admin - 11-26-2022
KC868-A8's "INPUT" is digital input port, use by dry contact signal, or "0v" or "12v" voltage level signal. if you want to feedback AC230V, the easist way is find a small DC12v power supply. when this power supply have AC230V then will output DC12v, let it connect to KC868-A8's input port directly.
RE: KC868-A8 input 230V - craggy - 12-19-2022
I use these AC zero crossing detectors for this exact purpose. https://www.tindie.com/products/edwinrobotics/ac-mains-zero-crossing-detector/
They work perfectly with the DI inputs on the KC868-A8.
RE: KC868-A8 input 230V - admin - 12-20-2022
ok, if added "AC zero crossing detectors", it's no problem.