Digital input ghost detection
My house has eltako teleruptors for lighting system(24v pulse switches a relay which turns on the light).
I've attached the unipi 1.1 to this system and it works perfect.
The only problem is when I push a switch where a dimmer is connected to(eltako eud12d-uc https://www.eltako.com/fileadmin/downloads/en/_datasheets/Datasheet_EUD12D-UC.pdf) I get a signal on my other inputs(the led of 2 inputs on the unipi light up faintly).
I didn't connected the 2 switches (which are connected to the dimmers) to the unipi.
Is there anything I can do about this problem?
Maybe something extra to the input signal?
can you share a schematics of the connections?
i've tried to create a schematics of my system:
So if I push button SW1 I get a signal on my unipi this works perfect.
No if I push SW2 the led of D1 lights faintly but it is enough to trigger the port.
The cable of all the switches is a SVV cable(don't know how it's called in english https://www.my-electro.be/product/svv-f2-sturingskabel-12x08/)
These are routed trough the whole house and passes every switch. One of the cables has +24V the others are connected to a relay or a dimmer.
What I'm trying to do is to intercept a push to one of my switches in house.
I hope my explanation is sufficient to understand what the problem is :)
Excellent @sennevds, thanks for the schematics! I see you use external power supply for the DI. Can you please send a photo of the jumper settings (JP2-JP5)?
@martin-kudláček I've set them to use external power like in the manual:
I don't thing this has something todo with the unipi itself because the input signal of SW1 works perfect. I think because of the way the dimmer works it generates some sort of a signal which is picked up by the unipi. So I think I need to filter the signal to only get a "pure" 24v signal
@Martin-Kudláček do you know a good way to eliminate these false positives? Maybe an extra circuit before the input of the Unipi 1.1?