Hi guys, I have a serious problem with the connection of some Krispol roller shutters with a Starcus motor (radio-controlled by remote control). The problem is that there are 5x1.5 going from the roller shutters: L-main power, N-neutral, L-bottom (fiolter), L-top (red) and PE. In contrast, 4x1.5 YDY + ytdy 8x0.5 - not used - enter the box from the switchboard. Ultimately, the roller shutters are to be lowered when the alarm is armed (seasonal cottage). The roller shutters are radio-controlled from a remote control, but will also be primarily controlled by SATEL's INT-ORS.
At first the roller shutters were not to be there, then there was a change, nobody knew what wires to run and as a result I found the following situation:
.
The main problem was that one wire was missing and how to splice it sensibly and SAFELY!
I came up with this: (correct me if I am thinking wrong): bridge PE of roller shutters to ytda 3pcs x 0,5 >then in the switchboard connect each of the roller shutters to a separate RCBO for example, but put a 230V contactor behind them in case there is a potential on the wire then the controlled auxiliary contact would remove the voltage in the roller shutter?
It's too far away to run PE from other boxes or lamps and rip up so many walls.
I also wouldn't want to fit relays in the boxes as they will be plastered deep - crooked walls.
Day 3 of thinking about this and even in my dreams I can't think of anything safer.
What do you guys think?
At first the roller shutters were not to be there, then there was a change, nobody knew what wires to run and as a result I found the following situation:

The main problem was that one wire was missing and how to splice it sensibly and SAFELY!
I came up with this: (correct me if I am thinking wrong): bridge PE of roller shutters to ytda 3pcs x 0,5 >then in the switchboard connect each of the roller shutters to a separate RCBO for example, but put a 230V contactor behind them in case there is a potential on the wire then the controlled auxiliary contact would remove the voltage in the roller shutter?
It's too far away to run PE from other boxes or lamps and rip up so many walls.
I also wouldn't want to fit relays in the boxes as they will be plastered deep - crooked walls.
Day 3 of thinking about this and even in my dreams I can't think of anything safer.
What do you guys think?