Light Synchronization Safety Light Curtain

★ Excellent self-verification function: If the safety screen guard malfunctions, it ensures that no incorrect signal is transmitted to the controlled electronic devices.

★ Robust anti-interference capability: The system possesses excellent resistance to electromagnetic signals, flickering lights, welding arcs, and ambient light sources.

★ Utilizes optical synchronization, simplifying wiring, and reducing setup time.

★ Employs surface mounting technology, providing exceptional seismic resistance.

★ Complies with IEC61496-1/2 safety standards and TUV CE certification.

★ Features a short response time (≤15ms), ensuring high safety and reliability.

★ Dimensions are 25mm*23mm, making installation easy and straightforward.

★ All electronic components use globally recognized brand parts.

The safety light curtain primarily comprises two components: the emitter and the receiver. The transmitter sends out infrared beams, which are captured by the receiver to create a light curtain. When an object intrudes into the light curtain, the receiver quickly responds through its internal control circuitry, causing the equipment (like a punch press) to halt or trigger an alarm to safeguard the operator and maintain the equipment's normal and safe functioning.

Several infrared emitting tubes are positioned at regular intervals on one side of the light curtain, with an equal number of corresponding infrared receiving tubes arranged similarly on the opposite side. Each infrared emitter aligns directly with a matching infrared receiver. When no obstructions exist between the paired infrared tubes, the modulated light signals from the emitters successfully reach the receivers. Once the infrared receiver detects the modulated signal, its associated internal circuit outputs a low level. Conversely, if obstacles are present, the infrared signal cannot reach the receiver tube, and the circuit outputs a high level. When no objects interfere with the light curtain, all modulated signals from the infrared emitters reach their corresponding receivers, resulting in all internal circuits outputting low levels. This method allows the system to detect the presence or absence of an object by evaluating the internal circuit outputs.

1. Consider the specific working environment and the operator’s activities. For machinery like paper cutters, where the operator frequently enters the hazardous area and is closer to it, the risk of accidents is higher. Thus, the optical axis spacing should be relatively small. For example, use a 10mm spacing light curtain to protect fingers.

2. If the frequency of entering the danger zone is lower or the distance to it is greater, you can opt for a light curtain designed to protect the palm, with a spacing of 20-30mm.

3. For areas requiring arm protection, a light curtain with a slightly larger spacing, around 40mm, is appropriate.

4. The maximum limit for the light curtain is to protect the entire body. In such cases, choose a light curtain with the widest spacing, such as 80mm or 200mm.

The protection height should be determined based on the specific machine and equipment, with conclusions drawn from actual measurements. Note the difference between the height of the safety light curtain and its protection height. The height of the safety light curtain refers to its total physical height, while the protection height is the effective range during operation. The effective protection height is calculated as: optical axis spacing * (total number of optical axes - 1).

The through-beam distance, the span between the transmitter and the receiver, should be determined according to the actual setup of the machine and equipment to select a suitable light curtain. After deciding on the through-beam distance, consider the length of the cable required.

The signal output type of the safety light curtain must match the machine's requirements. If the signals from the light curtain do not align with the machine’s input, a controller will be needed to adapt the signals appropriately.

Choose between an L-shaped bracket or a base rotating bracket based on your specific needs.