I recently bought from amazon a 106" motorised projector screen, It was cheap at £90 but thought id give it a go. i decided to mount this in the ceiling. The screen came with a radio frequency remote and physical controls in line with the power lead. The lead to the motor is removable and i noticed it had 4 wires. I also knew one of the wires had to be an earth, so it must be a three wire motor ( i have to admit this was all guess work) Anyway I looked into the Fibaro roller shutter module, and that is setup to work with three wire motors, and I couldnt resist giving it a go, so i ordered it on a bit of a whim.
anyway the projector screen arrived and i spent the best part of two days ripping up the floor above to fit it into the ceiling. got everything fitted and the screen working on the original controller and remote. then the fibaro arrived.
I snipped the wiring loom and cut out the OEM controller and radio receiver, and stripped the wires back to see what I had.
from the plug to the controller i had,
pretty standard stuff (in the uk), From the controller to the motor I had
my thoughts at this time (with no testing equipment, dont shout at me):
greet yellow will be earth
Brown will be live motor in one directrion
Blue is likley to be motor neutral because why change the colour of neutral?
Black will probably be live motor other direction, so thats how i wired up the module.
anyway, I switched it on, assigned it to the smart things, hub, and pressed down and the screen moved all the way down to the limit switch, perfect, now for up, pressed the button and… nothing
the screen stayed down, i played with differnt device types and setting the motor to learn, but the motor wouldnt work, eventually i had to assume the wiring was in correct.
I figured if anything was going to be swapped around, it would be blue and black, black used to be the colour of neutral in the uk, but again it was more of a guess. anyway, swapped the colours around, swithed it on and voilla! the screen worked as expected.
the only thing i did was change the way its wired, so that when the screen is open it shows as on, and when the screen is closed, it shows as off. Currenlty this works with a dimmer device type, does anyone know of one that works better? i did find one in a search but it didnt seem complete. ill try to attach some images below.