How to Elvox 40547 + Nuki Opener – (Soldering required)

Discussion
1

Hi guys!

After countless tries with Nuki Generic Bus, I wasn’t able to get the Opener working… but I was able to craft a solution for all of you, who can solder two wires :slight_smile:

  1. First you need to disassemble the 40547 from the wall and remove the circuit board by removing the two screws

  2. On the right side, find the 2nd button from below and solder the BLUE and PURPLE cable of nuki to the button pads.

  3. Reassembly the board to the housing and screw it back on the wall

  4. Install the cables like before, just add the NUKI Wires like in the following picture:
    grafik

  5. Open the Nuki App and configure a “Generic ANALOG” Device

Your Opener should now recieve door rings, execute Ring-to-open / manual door opening. The door opening will be done by simulating a button press by short cutting the button.
To make use of the ringing supression, put the second switch on the right side of your 40547 to mute and configure the Nuki Opener as a chime

I hope that can help you guys out :slight_smile:

Cheers

2 Likes
2

For step 2.:
grafik

3

Hello,

thanks for your instructions. :slightly_smiling_face:

I have just completed the installation following these instructions. Opening the door works perfectly. However, the opener does not recognize the ringing and therefore the Ring to Open does not work.

As described in the picture above, I connected the yellow cable to the 12V connection and the black cable to the CH connection.

Do you have any idea why this is not working for me?

5

@Stefan_Moslinger
Can you try to switch yellow and black?
After I rechecked my ring, I recognized I use Black with 12V and Yellow with CH

6

thank you for your fast anwser. Now i switched Black into 12V and Yellow into CH but it dosn’t work.

The Elvox ring, but Nuki Opener doesn’t open the door.
If i manually click the OPEN Button in the Nuki App, the Nuki Opener opens the door.

1 Like
7

Hey, I tried it too; and opening works fine for me, but the ring detection doesn’t; as far as I can see, the yellow cable at CH should be enough or optional black in the right terminal with M; I measured with the multimeter and only get 1.4 mV when ringing from CH (but maybe I’m measuring wrong / missing something), I think this is too low for the detection. Does anyone have any ideas? Otherwise I will write to the support.

8

did you write the support? have you heard anything from them? i have an elvox 40547 and want to install nuki opener here. but since several people have troubles with ring detection, i am insecure about buying it.

9

I did write the support - but the model isn’t officially supported, so they couldn’t really help; hope I would get some information here though. But unfortunately, nothing new yet.

10

thanks for your fast reply!