ELEKTRISCHES SYSTEM ZUR STEUERUNG MINDESTENS EINES TORS ODER EINER TÜR ODER EINES ÄHNLICHEN ELEMENTS DES ELEKTRISCH BEWEGTEN TYPS

摘要

An electrical control safety system is provided comprising two photocells or equivalent sensors applied on a sliding gate, the two photocell systems being composed respectively of at least two transmitters and two receivers, and the control safety system being cyclically able to make the first photocell system operate during a first operating time interval while the second photocell system is disabled, and being cyclically able to make the second photocell system operate, during a second operating time interval, subsequent to the first time interval, while the first photocell system is disabled.