Photoelectric Safety Protection Device

★ Excellent self-verification capability: If the protective safety screen malfunctions, it guarantees that incorrect signals are not transmitted to the governed electrical devices.

★ Robust anti-interference capacity: The system possesses excellent resistance to electromagnetic signals, strobe lights, welding arcs, and ambient light sources;

★ Simplified installation and debugging, straightforward wiring, and attractive design;

★ Surface mount technology is employed, offering exceptional seismic resilience

★ It conforms to lEC61496-1/2 standard safety grade and TUV CE certification.

★ The corresponding time is short (<10ms), and the safety and reliability performance is high.

★ The dimension design is 35mm*51mm.

★ The safety sensor can be connected to the cable (M12) through the air socket.

★ All electronic components adopt world-renowned brand accessories.

The safety light curtain primarily comprises two components: the emitter and the receiver. The emitter sends out infrared beams, which are caught by the receiver, forming a light barrier. When an item interrupts this barrier, the receiver instantly reacts through its internal control circuit, instructing the machinery (such as a press) to halt or alert, thereby safeguarding the operator and ensuring the machinery's safe and standard operation.

On one side of the light curtain, multiple infrared emitting tubes are installed at uniform intervals, with an identical number of infrared receiving tubes arranged similarly on the opposite side. Each emitting tube aligns perfectly with a corresponding receiving tube, both mounted in a straight line. In the absence of any obstructions between an infrared emitting tube and its corresponding receiving tube, the modulated light signal sent by the emitter reaches the receiver without issue. Upon receiving the modulated signal, the internal circuit outputs a low level. However, if an obstacle is present, the modulated signal from the emitter cannot reach the receiver as intended. Consequently, the receiving tube does not get the signal, and the internal circuit outputs a high level. When no objects interrupt the light curtain, the modulated signals from all emitting tubes reach their respective receiving tubes across the barrier, causing all internal circuits to output low levels. By evaluating the status of these internal circuits, the system can determine whether an object is present or absent.

1. Consider the operator's specific environment and activity. For machines like paper cutters, where the operator frequently enters and is close to the hazardous zone, accidents are more likely. Hence, a light curtain with a smaller optical axis spacing (e.g., 10mm) should be used to safeguard fingers.

2. Similarly, if the frequency of entering the danger zone is lower or the distance is greater, you can opt for protection that covers the palm (20-30mm spacing).

3. To protect the arm, choose a light curtain with a moderately larger spacing (40mm).

4. The upper limit of the light curtain spacing is designed to protect the entire body. Opt for the light curtain with the largest spacing (80mm or 200mm).

This should be determined based on the specific machinery and equipment, drawing conclusions from actual measurements. Be mindful of the difference between the safety light curtain's height and its protective height. [Height of the safety light curtain: the total height of the light curtain's structure; Protective height of the safety light curtain: the effective protection range when the light curtain is operational, i.e., effective protection height = optical axis spacing * (total number of optical axes - 1)

The through-beam distance, the gap between the transmitter and the receiver, should be decided based on the actual conditions of the machinery and equipment to select a suitable light curtain. After setting the through-beam distance, consider the cable length required as well.

This must align with the signal output method of the safety light curtain. Some light curtains may not be compatible with the signal outputs of certain machinery, necessitating the use of a controller.