Garage door opening on power restore... Topic is solved

[galinette]

Hi,

I have added a Fibaro Smart Implant to my garage door controller. It works very well for opening, closing, and retrieving the door state, using two outputs and one input.

However, I noticed after a power cut that when the power goes back, the door opens... And this happens only with the Fibaro installed. This means, that at startup, the module sends an impulse on the outputs.

Any idea how to avoid this??

Thanks!

[lumjajo]

Much easier to use a ESP Device as most of the garage doors are a simple low power switch.
Other than that whats said in the configuration file with Action on Power up?

[galinette]

There is no such option controlling action on Power Up.

I contacted Fibaro, they acknowledged that relays shortly close at power-up. Which means, that the use in a Garage Door, although recommended in the manual, is totally unsecure.

[Egregius]

Why would you even want to open a door to your home with domoticz?
I do just the opposite: I switch of the power to the garage door opener. It's acting like a two factor authentication.
You need access to my wifi, access to my floorplan and know the pincode of the door opener. Good luck with that.

[lost]

I have added a Fibaro Smart Implant to my garage door controller...

Considering all the reported issues/bugs, this one should IMO be renamed "dumb implant".
Well, I have a qubino dry relay that drives open/close and S2 input reports status. This one have config restored on power outage.

[galinette]

Why would you even want to open a door to your home with domoticz?

It’s my garage, not my home. You can’t access the home from it. And I want to open it to guests when they arrive.

And no, I would not let a zwave dumb implant open my home. My two home items not connected to domoticz are the door lock, and the alarm system

I do just the opposite: I switch of the power to the garage door opener. It's acting like a two factor authentication.
You need access to my wifi, access to my floorplan and know the pincode of the door opener. Good luck with that.

You are nearly as paranoid as my dad. Just build a concrete wall each time you close it. You then have a triple factor auth, the third one being a sledgehammer.

[galinette]

Considering all the reported issues/bugs, this one should IMO be renamed "dumb implant".
Well, I have a qubino dry relay that drives open/close and S2 input reports status. This one have config restored on power outage.

The garage opener has 24V power source inside the extension box, so the implant was a perfect choice... are there 24V DC dry contact modules available other than smart implant? Apparently, the Qubino is 24V compatible, but not dry contact, and the Fibaro 222 has dry contacts, but is 220V only.

[fargle]

I have one of these, and checked it on an oscope.
The output spike at power-up is very short and seems more like a power stabilization issue rather than a logic pulse. If the controller input is a high impedance, ie over-sensitive, that could also make it prone to pick up this type of interference.

I would try either a 0.1 microfarad cap paralleled across the "relay" contacts to reduce hf transients, or similarly, a 10KOhm resistor to reduce the circuit impedance. Or both! Can't hurt to try. Since these devices are often used with garage door openers, the false triggering would seem to point to an issue in your installation.

I made a homebrew device do to the same job last year, intending to eventually replace it with the Smart Implant. But I'm sticking with my old one....if the Implant had used mechanical relays instead of semiconductor equivalents, this transient wouldn't even get through.

[lost]

The garage opener has 24V power source inside the extension box, so the implant was a perfect choice... are there 24V DC dry contact modules available other than smart implant? Apparently, the Qubino is 24V compatible, but not dry contact, and the Fibaro 222 has dry contacts, but is 220V only.

Exact same situation: ZMNHND1 Is dry contact that can be 220Vac or 24Vdc powered. You can even include/test it using 220V in your home before mounting in the opener box using 24V. Very convenient module.

I1 input can't be used for sensing (on Qubino relay modules, I1 is usually linked internally to relay command) but in my case I2 worked flawlessly using the opener control board relay output that can be used to drive external devices (like sensors/lights) while door is opened. Just had to set a pull-up to 24V as this one also looked to be a dry contact (even if at 1st sight/unloaded, this looked to be 0/24V because of some residual voltage: I presume it's a static relay as this is not supposed to switch high power).

I setup the Qubino before the dumb-implant was available, about 2 years ago. At the time, this was the only module able to drive the door in // of pushbutton command as well as sensing opener board open/close status + able to use 24Vdc internal to opener.