Somfy J4 WT Façade Blind Drive Causes TV Receiver Interference on Shared 230V Circuit

Hello

I have external roller shutters and facade blinds - all items have Somfy drives and are controlled at the moment with blind switches. There is a 4 wire cable from each drive to the switch box to the same box for 230V power from the socket circuit. I don't have the slightest problem with the external roller shutter drives everything works fine ( some of these drives are integrated into Domoticz using Blebox Shutterbox also works without a problem ) however I do have problems with the facade blind drives which interfere with the TV receiver.
The drives for the façade blinds themselves function correctly controlling the blind with a Hager B.square blind switch , Somfy J4 WT drives , when releasing the up or down control button the TV is switched off briefly. The power supply for the sockets as well as for the façade blinds in this room is drawn on one circuit and connected from one fuse in the distribution board. The blinds are controlled purely electrically using blind switches - no philosophy. The Somfy technical support debacle started with explaining why the power circuits in the house are not shielded. The blinds fitters think I should have Somfy Inis Uno VB control switches (from the connection diagram I can't see that it matters maybe some electronics inside ? I don't know, it's hard to find anything on the web).

Thank you in advance for any information that will guide me to the source of the problems or errors in the installation .
Best regards
M.K.

MarekKubica wrote:

I have problems with façade blind drives which are interfering with the TV receiver.

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More specifically, what are they interfering with? Terrestrial TV reception or anything else? Maybe you have a poor broadband antenna amplifier?

xury wrote:

MarekKubica wrote:

while I have problems with façade blind drives that interfere with the TV receiver.

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More specifically, what are they interfering with? Terrestrial TV reception or anything else? Maybe you have a poor broadband antenna amplifier?

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I don't have terrestrial TV , kids watched VOD via BR player.

Welcome,

MarekKubica wrote:

when releasing the up or down control key there is a brief shutdown of the TV.

What kind of TV is it? I had, or actually still have, the same problem at a friend's house where I hung a TV on the wall a few years ago. I ran the wires in the wall in one trough (power, HDMI, USB, etc. ) Since then, if the lights are switched on, there is a momentary disappearance (about 1 s) of the image on the TV. The screen goes black for a while and then everything returns to normal. Friends are not bothered by this so I have not looked for a solution. The TV is an older model LG plasma.

Greetings.

Try powering the t.v. from an extension cable from another room.

bhtom wrote:

Hello,

MarekKubica wrote:

when releasing the up or down control key, the TV shuts off briefly.

What kind of TV is this? I had, or actually still have, the same problem at a friend's house where I hung a TV on the wall a few years ago. I ran the wires in the wall in one trough (power, HDMI, USB, etc. ) Since then, if the lights are turned on, there is a momentary disappearance (about 1 s) of the image on the TV. The screen goes black for a while and then everything returns to normal. Friends are not bothered by this so I have not looked for a solution. The TV is an older model LG plasma.

Greetings.

.

I have a similar situation with the cables (power and HDMI) ie they are run in a trough together in the wall , the TV is an old model Sony Bravia .
The blinking itself does not bother me terribly much, I control the blinds rather only occasionally. I am rather worried whether interference from the drive could finish off some equipment , I would rather understand the nature of this phenomenon or find out where I went wrong with the electrical installation .

Regards
M.K.

Added after 2 [minutes]: .

Zbigniew 400 wrote:

Try powering the t.v. from an extension lead from another room.

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I will do some tests today. I'll check if the interference only affects the TV or if, for example, you'll see some flickering on the lamp next to the TV.
I will separate the HDMI cable from the power supply , and then try to power the TV from another circuit.

Regards
M.K.

I have made several tests and still have no idea what could be the cause of the problems described.
The first test was to separate the HDMI cables from the 230V power cables and this did nothing, the picture still goes out for a while after releasing the blind switch. In addition, I connected a bedside lamp to the same socket as the TV and did not notice the slightest flickering or dimming of the light on the bedside lamp . Finally using an extension cord I connected the TV to another circuit and only then did the interference disappear.
I am able to switch the power supply of the facade blind to the garden light supply circuit but will this cause interference to other appliances ? What is the cause of the TV going out , could any other appliances be affected ?

This ranges from poor connections in the boxes to too much instantaneous consumption in a given circuit.

Fit a power filter at the roller shutter.

sosarek wrote:

From poor connections in the cans to too much instantaneous draw in a given circuit.

Hello
I have 4 different sockets connected to the power supply circuit of these sockets , all plugged in via WAGO distributed with 3G2.5 cable , as for the momentary consumption I am just wondering why there is no interference at the start of the motor (starting currents ), interference in the operation of the TV appears only when the blind switch is released. In addition, I have not noticed any dimming or blinking of the lamp when it is connected to the same circuit. Somfy J4 WT 10Nm drive powered by 230V current 1A which is not too much .

Regards
M.K.

Check the key itself in that case - swap it with another one to try it out.

Zbigniew 400 wrote:

Install the power filter at the roller shutter.

Hello
Could you recommend something compact ? What would be able to fit in a roller shutter and be IP65 at least?

Best regards
M.K.

resistor and capacitor in series clipped onto the contacts of the roller shutter switch.
I can't remember the component values, you'll find them on the internet as this is a common way of dealing with this problem.

Additional information received from Somfy - these motors have built-in electronics and filters in the housing and they informed me that I should rather look for errors in the electrical installation. Now I have some time off and I will try to check this part of the installation, check how the roller shutters will behave when controlled with Blebox - shutterbox, install ferrite filters. After the weekend I will try to upload new information.