The illuminator emits a plurality of invisible infrared beams, and the photoreceptor receives the infrared beam from the illuminator to form a rectangular detection light curtain. The entire set of gratings is detected by beam-by-beam scanning. Any opaque object larger than a certain size (such as a part of the operator's human body, opaque workpiece, etc.) invades the light curtain area, causing shading. When the safety grating detects the shading, it will enter the "abnormal" state within 20ms of the response time - the interrupt output (such as the relay from the closed to the open state, the transistor enters the cut-off state, etc.).

Safety grating use:

Used in industrial robots, injection molding machines, packaging equipment, paper cutting machines, filter presses, automation equipment, welding and running water. Can be used for detection and theft prevention.