Sensors for Elevators

Contemporary glass elevators are synonymous with modern architecture and innovative design. They require state-of-the-art threshold detection specifically designed for elevator doors to ensure passenger safety and comfort.

Pepperl+Fuchs ultra-low profile, AL21 series light curtains are available in a compact, 9 mm wide housing—our smallest—for easy mounting. The A21 light grid’s beam correspondence is automatically set to obtain maximum resolution with beams that automatically change as the distance between the transmitter and receiver move farther apart, allowing detection of small targets even at near zero separation. The AL21 light curtain maintains a three-fold beam configuration even as the elevator door closes (at zero separation).

Photoelectric sensors emit a narrow beam and monitor the threshold of an elevator door with a reflector or receiver as a reference. They provide a simple and cost-effective method to secure the elevator door. Extra narrow housings enable the light curtain installation in confined locations in the door frame. AC/DC supply sensors are available as well as features that include high ambient light immunity and tamper-proof housings.