Fibaro Dimmer2 - 230V input for S1, S2 possible?

[Innerand 0]

Hello,

 
I wonder what the potential of Sx is? I have an existing wiring for a remote/impulse switch in the hall and would like to replace it with a dimmer2.

However, the manual says that Sx must be connected via the switch to input S1 or S2 which would require me to add some wires.
Would it also be possible to use 230V (L) on the switch inputs S1 or S2?

Many thanks and best regards,
innerand

[Brors94 115]

I think sx actually is the same as N if I remember right. 

Please login or register to see this image.

/monthly_2023_12/image.png.d01a0847c1c72a7963c61f09b77e90b2.png" />From manual. 

[Martin_N 154]

@Innerand

If you insist on activating phase L, you must choose the RELAY module, not the dimmer.

[Paul Ruskin 1]

Sx seems to be live, or close.

 

Which makes the wiring of Sx to Neutral as shown in the diagrams a puzzle, because when I did it, it blew the fuse that I had inline.

 

Can anyone explain?

 

Paul

[Martin_N 154]

@Paul Ruskin What values was the fuse, what did you have attached for the consumption? I assume that we still have two wiring wiring as in the pictures.

[Paul Ruskin 1]

I had some problems tripping a circuit breaker, so I tried on a test setup (different dimmer with fewer black bits!).  3A fuse and 5W LED.  Dimmer 2 connected as per diagram above in Brors94's post.

 

Blew the fuse twice until I stopped trying to make Sx neutral.  Sx measures as full live volts on a multimeter, too.

 

There's a post elsewhere on  the Forum saying that the Sx is basically live.  That's consistent with the way other Fibaro devices work (eg Roller Shutter) where they are presumably short of terminals, so you connect the other end of the switches to live.

 

Paul

[Martin_N 154]

@Paul Ruskin If you have it connected exactly according to the picture, then I guess there will be a problem with the LED. It is either defective or not dimmable.

For verification, I recommend connecting a classic halogen bulb

.

[Paul Ruskin 1]

 @Martin_NThere's no problem with the LED.  If I don't connect Sx to Neutral, the fuse doesn't blow, and the dimmer works fine with the LED load.

 

I've found a post where someone had the same problem

 

 

Does anyone know what the input circuitry of the Dimmer 2 looks like?

 

Paul

[Paul Ruskin 1]

3 minutes ago, Paul Ruskin said:

 @Martin_NThere's no problem with the LED.  If I don't connect Sx to Neutral, the fuse doesn't blow, and the dimmer works fine with the LED load.

 

I've found a post where someone had the same problem

 

 

Does anyone know what the input circuitry of the Dimmer 2 looks like?

 

Paul

 

@Martin_N 

 

OK, problem solved I think.

 

The connection between N and Sx is for the 2 wire connection.  I was using a 3 wire connection, with a Neutral, and it definitely doesn't work in that case!

 

Thanks for responding.

 

Paul

[Martin_N 154]

ah... confession is a mitigating circumstance

Happy holidays, Merry Christmas.