Roller shutter controller - slats angle error over time

[mneek 0]

Hi,

mostly I am just tilting venetian blinds 0° -> 90° and 90° -> 0° instead of opening them. Over time it happens, I believe due to the small errors in timing, that the slats angle is not correct anymore. Usually I notice it, when the slats do not close completely anymore and this can take from a few weeks to a couple of months to be noticeable. Then I have to go to the device settings, correct the slats angle rotation to minimum and rotate them to "90°", then set the correct time and close it to 0° and it is fine again for a few weeks.

 

Can I somehow do that with a scene, maybe some delay to not look for an angle but for a set time? Ideally, every time the slats go to 0°.

[m.roszak 781]

Shutters will correct slats angle staring point after normal movement of the shutter, its one motor controlling both angle and position.

If you just move the shutter up and down the error will be compensated, there is no way of keeping the timing correct for the whole device life (speed changes depending on the temperature, dust and a lot of other factors during lifecycle).

Maybe just make a scene which will open them up to 10% and close again fully once in a week and thats that. 

[mneek 0]

I understand the error comes from timing. I often angle them just 30° so yes, with fully opening the error would not be that visible.

 

Blinds should be stopped with physical switch on the motor instead of when reaching the 0°, that would be the best solution if possible (and this is what I do when I correct the slats angle rotation time). But I can try with that 10% opening next time.

[m.roszak 781]

Full closure will guaratnee the sychronisation, so hitting bottom limit switch (or upper should also work).

So upening the whole blind just a bit and then closing it fully should allign that. 

[mneek 0]

So I understand opening/closing and slats angle as two different settings. Therefore my scenes first close the blinds (in case they are open more than e.g. 30%) and then set slats angle to 0°. Is this the correct way?

[m.roszak 781]

Just Close action will allign that, regarless of the next slats control position.

As the bottom position (end limit switch) means closed shutter and the slats - this is the moment motor has absolute position 0, any position change from that moment between end limit switches will work on timing.
So reaching full bottom position from time to time will be enough.