Hormann ProMatic Gate Opener - Adapting 220V to 24V for Wall Bell Button: Current Ampere Advice

Question

I wanted to open and close the gate with the Hormann ProMatic motor via the bell button on the garage wall. I know where I should connect 24V + and - in the engine. What I want to do is from the electrical switchboard (because I have cables routed in the walls) to pass the 220V current through...

sosarek · Accepted Answer

Well, and in the linked topic you have clearly written where to connect the bell button, so I don't understand why you are messing with some additional power supply?

sosarek · Answer

The bell button does not require power, at least you know what you want to do - probably not really.

lpawliko · Answer

Ok, that's different because I really don't know.

I want to use the bell button on the wall to open and close the garage door. The drive does not have its 24V in its modules, it expects it at the input from the outside from what I have read and in this drive I have two terminals + and - with the description that they are for 24V and they are responsible for the open/stop/close impulse.

Maybe I'll start like that then. Are you able to help somehow?

sosarek · Answer

What exactly is the drive - the central unit? The bell push works on a short-circuit principle and does not require any power supply.

lpawliko · Answer

Hormann ProMatic.

Inputs + and - as in the picture:

The topic has already been discussed, for example, here:
https://www.elektroda.pl/rtvforum/topic2172563.html
https://forum.supla.org/viewtopic.php?t=3674

That's why I thought my idea was good, but when I wanted to buy this "converter" 220 to 24 in the store, I didn't know the answer to the question "what power? How many amperes?". Now I have found a record in the manual that "the permissible load of the drive by all accessories is max. 100 mA in total". And what I do is defined as an additional element.

lpawliko · Answer

Ok, I thought so too, that I connect the bell cable with + and - from the drive and if I short them, it will work, but no, because there is no voltage or anything on these wires, the drive itself does not generate anything. The man from the drive said that an external source of these 24V is needed, hence my combinations.
However, if you maintain that it is only about a short circuit between + and -, then I will look and see, maybe you need to switch one of the DIPs on the board to make it work.

sosarek · Answer

WHERE have I ever written that? - you have everything explained, even in the picture you attached ...

lpawliko · Answer

You know what, you pushed me to check the shorting of those wires again and it worked, I don't know why the gate man didn't want to. Bizarrely, he messed me up terribly and suggested an external clasp.
Works.

Sorry to take up your time and thanks a lot for your help.

sosarek · Answer

He probably wanted to press some wireless button with an additional receiver, a regular bell does not require any power supply, only shorting the appropriate pins.

lpawliko · Answer

Thanks again.

Added after 2 [minutes]:

Problem solved. To give a close/stop/open impulse, it is enough to short-circuit two low-voltage cables connected to the pins with an external bell switch as shown in the figure above.

[Solved] Hormann ProMatic Gate Opener - Adapting 220V to 24V for Wall Bell Button: Current Ampere Advice

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Post #11

Didn't find an answer? Ask Artificial Intelligence

Topic summary