Operating Instructions RolloTube I-line RolloTube I-line ILIS/ ILIM F. Tepaße Updated March 11, 2024 14:35 Follow Download PDF Download Quick Start Guide Related articles Operating Instructions RolloTube I-line DuoFern ILFS / ILFM Operating instructions C-line tubular motors CLIS/CLIM Why does the roller shutter motor switch off after prolonged and frequent operation? Control tubular motor actuator externally. Button or switch for external control?