Safety light curtain consists of a light emitter and a light receiver, can effectively detect any opaque objects exceeding the detection accuracy when entering the light curtain area. Safety light curtain adopts light curtain and controller separate design. It can be used with the controller, also can be directly connected to the PLC and safety relays, and cooperates with the machine tool control system to achieve automatic stop function in dangerous situation. ATO can offer AC 110-220V controllers according to customer needs. When the safety protection device fails, make sure that safety light curtain don't send the wrong signals to the controlled equipments.
Applications: Safety light curtain is an advanced laser sensor that protects the staffs around dangerous machinery and equipment. It can be apply to paper cutting machine, conveyors, assembly line, woodworking machinery, leather machinery, forging machine, punching and shearing machine, press machine, milling machine, drilling machine, welding machine, CNC, elevator, automation equipment, handling equipment and so on.
|Light curtain mode
|Distance of optical axis (K) *
|Number of beams *
||6, 8, 10~72
||6, 8, 10~32
||4, 6, 8~72
||6, 8, 10~32
||4, 6, 8~32
||4, 6, 8~72
|Protection height (H)
||K*(Number of beams-1)
||30~3000mm or 30~6000mm
||30*30*J mm (J is the length of light emitter/light receiver.)
||10000Lux (angle of incidence≥5°)
||DC 12/24V, AC 110-220V (relay output)
||NPN/PNP, input current 500mA, voltage drop≤1.5V, reverse polarity, short-circuit, overload protection.
||All the optical axis are receiving (show green).
||Light emitter: Power supply indicator is red. Light receiver: Output indicator is green (through), output indicator is red (block).
||Special infrared LED
||Circular air outlet with a special connection cable, 4 core wire for light emitter, 5 core wire for light receiver.
||Shell: Aluminum alloy, end cover: ABS.
|Resistant to ambient light
||Natural light: receiving surface 3000Lx. Sunlight: receiving surface 10000Lx.
||Operating: -10℃~40℃ (do not freeze). Storage: -25℃~55℃.
||Operating: 35-85%RH, storage: 35~95%RH.
||TUV, CE, RoHs, ISO9001:2015
Dimensional drawing (unit: mm):
Safety light curtain output signal selection:
Tips: How to select safety light curtains?
- Protection height: It is the protection height of the dangerous area. It is based on what kind of mechanical equipment the customer will use. For example, the punching machine has a large tonnage and the protection height needs to be larger.
- Distance of optical axis: Refers to the distance between the transmitting tubes of safety light curtain, the shorter the distance, the smaller the test object, the higher the safety factor. Generally 10mm distance is enough to protect fingers, 20mm distance is enough to protect palm, 40mm distance is enough to protect arm.
- The number of beams: Safety light curtain beam has the same protection height. When in same protection height, the greater the number, the smaller distance of optical axis, the smaller objects, the higher security. In general, the number of beams is a decisive factor for pricing the safety light curtain.
- Dimensions: The commonly dimension is 30*30mm, using for punching machine and other equipments.
- Output mode: There are five general output modes, such as NPN output, PNP output, relay output, digital output and analog output. It is to be set based on customer requirements.
- Installation: Steel pipe support installation and side-mounted mode.