Single beam photoelectric safety switches

The L4000 photoelectric safety switch system comprises the UE401 safety evaluation unit, to which up to 4 L4000/L400 sensors (sender/receiver combinations) can be connected as single pairs or up to 8 sensors can be connected in cascade.

The UE401 safety evaluation device is the connecting link between sensors and machine controller.

Colour LEDs provide in-situ information on operational status. The indication of status and error messages on the 7-segment display of the UE401 safety evaluation unit allows rapid diagnostics. The possibility of connecting 4 individual sensor pairs or 8 sensors, the range of versions providing the right scanning range for the specific application, the suitability for outdoor applications, and the use of deflector mirrors also allow for the solution of complex protection tasks.