Motorized Fts Skylight Roller Blinds: Fabric Tension Dual Motor System (FTS) electric skylight shades and angle openings with an FTS allows complete control, using solar shading or blackout fabrics.
Fabric tension systems hardware consists of dual motorized tubes, fabric secured between 2 tubes with cable or industrial webbing. Standard FTS Systems have fabric rolling off the top of the tube (closest to the window) with the motors R/R. Motor speed is 20 RPM.
The controller operates each motor independently to maintain the dynamic (moving) tension. The final (static) tension is then set to eliminate sagging when the fabric is fully closed.