Application A rolling gate is to be converted to automatic operation. European standards require that the main closing edge must be safeguarded. The standard method is to install a safety edge.
1. Profile A suitable profile must first be selected. The most important criterion here is the over travel of the profile. The over travel specified by the manufacturer must be greater than the stopping path of the gate. The geometry of the profile is the second most important aspect and must be adapted to the gate panel. The standard rolling gate profile OSE-P 25 75 01 is a suitable profile for this application, as its over travel is sufficient for the majority of rolling gates and it also features the required geometry. The aluminum rail ALU-2509 is used as mounting rail.
2. Sensors and Control Unit The choice of control unit depends on the gate control system used. Since many control systems can analyze the sensor signals directly, a simple reversing-contactor control is used here. This in turn requires the use of an external control unit for the safety edge. The OSE-C 2323 meets with the requirements. Sensor types OSE-R 1100 and OSE-T 1100 must be used, as the profile has an 11 mm chamber.
3. Accessories End stoppers should be used to protect the safety edge in its lower limit position. These stoppers must not be fitted inside the clear gate width. Type OSE-B 5518 stoppers are suitable for this profile. The sensors are connected in the junction box (AC 1101) on the gate and connected to the control unit via a three-wire coiled cable (AC 1000).
4. Connection to the Gate Control System The Stop signal for the safety edge must interrupt the self-holding function of the gate. The gate may only be operated in dead-man mode if the safety edge does not work. The gate must be reversed when the signal to rise is given. In the lower limit position, the rise signal from the safety edge should be interrupted via a prelimit switch, otherwise the gate could be opened by actuation of the limit position.
5. Adjustment of the Limit Switches The limit switches must be readjusted as a result of using the safety edge. The sensing chamber should not be crushed in the limit position
