The radar motion detector is sensing the person who is approaching to the door and opens the door immediately. After the passaging, the door closes automatically. The automatic closing time can be adjusted as per demand. The safety of the passing-by person is basically performed by the control system, which is checking and modulating the movement and the position of the door-wing in every phase of the movement, using an encoder drive. When the door wing is impinge by an obstacle, the ODS barrier sensor function stops the door immediately, and makes the door-wing moved to the opposite direction. It makes impossible to happen that the barrier-free door automation would close the door-wing by accident and would cause damage to anybody. The intelligent control electronics can also be connected to a fire alarm system. When it alarms, the door-wings are opening, ensuring free escape. After the fire alarm is over, normal mode resumes. If it is necessary to keep the door open for freight or other reasons, with the COM-K program switch this function can be selected.  he drive of the automatic is not self-closing, so in case of power failure, the door-wings can be opened and closed by a manual force.