Shelly 1 Gen 4 and garage door

[Sirtho]

Hi, tried to connect a Shelly 1 GEN 4 on a garage door motor without success. It acts like an ON/OFF switch and it would need to be something like 0,5” contact only. With the reed connected as below, when opening the door (click on Shelly in homey pro), it opens the door a few centimeters (it stops as soon as the reed loose contact).

If someone have any clue how to have this to work

I’m using the 24v from the garage door.

Here is the wiring I have:

From Left to right:

O / I : to door switch (1 & 3 on below picture)

SW / L : to door reed

L / N : to 24v (1 & 4 on picture below)

Thanks!