Safety Light Curtains

A：Dadisick safety light curtains are widely used in various industries such as stamping, hydraulic presses, injection molding machines, die-casting machines, packaging machines, paper cutters, industrial robots, bending machines, and personnel separation. Leuze also provides specialized waterproof and dustproof light curtains for bending machines, as well as light curtains for pneumatic presses and hydraulic presses.Dadisick safety light curtains are mainly applied in industries including hardware pressing, plastic injection, automation, and machinery equipment. You can visit the official Leuze website to see industry-specific application solutions that showcase a range of cases. In the hardware pressing industry, the use of photoelectric protective devices is particularly extensive and can be applied to pneumatic presses, hydraulic presses, oil presses, and large gantry presses. Leuze safety light curtains are designed to protect fingers, palms, and arms according to customer requirements, ensuring the personal safety of users.Measurement light curtains have wide applications in industries such as detection grids, volume measurement, alignment correction, spray coating, and traffic. In the traffic industry, it refers to vehicle separation light curtains. The intelligent light curtains with high technical content and measurement light curtains require technical calculation before pricing. Therefore, delivery of measurement light curtains may not be possible on the same day. However, our safety light curtains, including compact and ultra-thin ones, can generally be shipped on the same day.

A：In industrial production, various high-risk production equipment is used, such as punching machines, bending machines, and shearing machines. Without proper safety measures, these devices can easily cause accidents during operation, posing a serious threat to the personal safety of workers.In this era, which values talent, recruiting has become increasingly difficult. Every employee wants to work in a safe environment, so they choose workplaces where they feel secure. Therefore, it is necessary to prioritize the safety protection of dangerous machinery equipment.Optoelectronic protection devices are high-level safety protection devices that maximize the personal safety of workers and ensure safe production.With the installation of optoelectronic protection devices on equipment, employees can use these devices with peace of mind, no longer worrying about injuries to their hands or other body parts. Companies no longer have to worry about paying high compensation for employee injuries. This is beneficial for both parties.When we talk about optoelectronic protection devices, we are actually referring to safety light curtains. Safety light curtains are now widely used, and their prices are not as expensive as before. A set of light curtains typically ranges from a few hundred to one or two thousand dollars. Even if a workshop has more than ten devices, the cost is not significant compared to the hefty compensation required after an accident. It is definitely worth it.Since optoelectronic protection devices involve safety protection, it is important to find reliable and high-quality ones. For example, Dongguan Dadi Electronic Technology Co.,Ltd. has over 10 years of experience in the field of optoelectronic protection and leads the industry in terms of technology level. They have unique qualities in terms of quality and service, making them a trustworthy brand.

A：Good maintenance and care of a safety light curtain are crucial as they directly impact its lifespan and can even affect its safety functions. Therefore, proper maintenance is essential. Here are a few tips based on experience:Experience 1: Each grating should be regularly inspected and maintained, with dedicated personnel responsible for their care.Experience 2: Before starting work each day, it is important to check if the safety grating is powered on and functioning properly before operating the machine.Experience 3: Develop the habit of regularly cleaning the grating, especially the filter plate, to avoid oil stains and dust. If possible, it is recommended to provide a protective cover for the grating.Experience 4: When replacing or adjusting the mold on the machine, make sure to adjust the height and safety distance of the grating to the appropriate position after completing the task.Experience 5: Avoid stacking objects near the installation area of the grating to prevent accidental damage.Experience 6: It is advisable to have a professional inspection or maintenance of the grating performed annually. If any malfunctions occur, do not attempt to repair it yourself, but rather seek the assistance of a professional technician.

A：DADISICK-QA series long-distance bi-directional safety light curtains are safety devices that utilize the principle of bi-directional projection. They are mainly used in applications that require coverage of larger areas, such as robotic automation production lines and automotive assembly lines. Compared to traditional safety light curtains, the DADISICK-QA series offers several advantages:1. Wide Coverage: Long-distance bi-directional safety light curtains can cover larger areas, replacing multiple sets of traditional safety light curtains, reducing equipment costs and the difficulty of installation and maintenance.2. Extended Range: Traditional safety light curtains typically have a range of a few meters, while long-distance bi-directional safety light curtains can reach tens of meters, meeting specific requirements.3. Fast Response Time: Due to the bi-directional principle, long-distance bi-directional safety light curtains have a very fast response time, detecting objects in milliseconds and ensuring the safety of operators and equipment.4. Strong Anti-Interference Capability: Long-distance bi-directional safety light curtains use digital signal transmission, effectively resisting the influence of electromagnetic interference and other sources of interference.Indeed, long-distance bi-directional safety light curtains have various advantages, including wide coverage range, extended operating distance, fast response time, and strong anti-interference capability. These features make them widely applied in industries such as robotic automation production lines and automotive assembly lines, where large areas need to be covered for safety purposes.

A：Safety light curtains are also known as safety light screens, safety light curtain sensors, infrared safety light curtains, photoelectric protectors, infrared photoelectric protectors, punch press photoelectric protection devices, etc.How to determine if a safety light curtain is in working mode?Many customers may have doubts when using a light curtain for the first time, wondering if it is installed correctly and if it is in normal working mode.Because the purpose of a safety light curtain is to protect personal safety, it must be taken seriously. So how can we determine if a safety light curtain is in working mode?When the safety light curtain is powered on, the emitter will flash three times and then remain on, indicating that it has entered the working mode. The receiver will have red and green lights flashing three times when powered on, indicating that it has also entered the working mode.What are the conditions for the safety light curtain to be working properly?When the emitter and receiver are in working condition, the emitter's red light remains on, and the receiver's green light is illuminated. When the light curtain is obstructed, there is no change in the emitter's indicator light, but the receiver's light changes from green to red, and the digital display shows the number of blocked light beams. When there is no obstruction, the receiver returns to its normal state with a constant green light.

DADISICK, a highly sensitive protective device, is increasingly showing strong momentum in the application of safety systems in the manufacturing industry. In some high-end manufacturing plants, large workstations have fully adopted two-dimensional or even three-dimensional protection systems.More production equipment, in situations where frequent intervention is required, will almost always choose to use safety light curtains as a solution after considering risks such as material splashing, sparks, and dust dispersion. The benefits of using safety light curtains are as follows:1. The technology industry chain of sensitive protective devices is mature, the product classification is clear, and various resolutions and safety performance levels can meet the requirements.2. Safety technology is developing rapidly, various aspects of improved technology are constantly breaking through, norms are constantly forming, and the future standardization path is clear.3. As an active defense technology, safety light curtains can achieve automatic reset in most cases, effectively solve the grounding problem in the production process, greatly reduce the complexity of operation, and improve production efficiency.DADISICK provides products such as safety light curtains and scanners. As a safety-sensitive protective device, safety light curtains bring convenience in use, but signal interference is also one of the problems that must be solved.Signal interference of safety light curtains usually comes from two aspects:1.Interference from the environment:If there is a reflective surface near the light beam emitted by the safety light curtain, passive reflection will cause the light curtain's receiving end to receive an erroneous reflected signal, making it impossible to detect intrusion in the protected area.2.Interference between adjacent light curtains:Due to the widespread use of safety light curtains in adjacent areas and the long protection distance of the light curtain components themselves, signal misalignment may occur between the transmitter and receiver of adjacent light curtains.Interference solutions for safety light curtains：In order to effectively avoid the above-mentioned types of interference, physical positioning and technical measures can be taken.Regarding the positioning of the safety light curtain relative to the reflective surface:[1] Reflective surface[2] Safety light curtain transmitter[3] Safety light curtain receiver[4] Half scanning angle[5] Minimum distance from the safety light curtain to the reflective surfacePhysical positioning:The safety light curtain itself has a fixed scanning angle. The specific parameters can be found in the light curtain technical manual. The positioning of the light curtain transmitter and receiver can also be determined according to working conditions. With these two sets of parameters, the minimum distance to prevent reflection interference can be calculated using trigonometric functions such as tangent (tan) or cotangent (cot).In the case of using multiple sets of adjacent light curtains, additional physical barriers can be used, or the installation order of the receiver and transmitter can be reversed to solve the signal interference between the light curtains.Use of multiple sets of adjacent light curtains:Technical measures:In addition to physical means, some models of safety light curtains also integrate coding functions, which can effectively prevent interference even if the physical installation positions are close to each other. The coding function enables the light curtain to work properly even when it is interfered by other light curtains. This function is particularly useful when the transmitter of one pair of light curtains may directly transmit light to the receiver of another pair of light curtains. As long as different coding is configured for the two pairs of light curtains, the mutual interference problem between them can be effectively solved.

A：So far, high-quality safety light curtains have been advancing in terms of their application fields and related technological approaches. Professional technical methods have been widely used in various production and processing areas. Choosing and using high-quality safety light curtains is crucial to maximize their technological value. Therefore, it is important for users to understand how to select safety light curtains and ensure the quality of cooperation.Pay attention to measuring the effectiveness of technology and the corresponding quality of detectionThe accurate detection capability of high-level and reliable equipment itself determines the practical quality of subsequent product testing for users. Currently, photovoltaic quality assurance devices ensure more stable detection results. In addition, their optoelectronic safety protection devices and a series of CNC instruments are becoming more stable in the use process. They can effectively achieve synchronous operation and technical adjustment. Moreover, they can also use their self-diagnostic technology for error correction and validation. Only by doing so, can this high-quality safety light curtain accurately and safely detect and handle, thus maintaining the quality of detection by leveraging the stable and reliable technological advantages of the safety light curtain.Pay attention to the performance and quality of measurement technologyIt is reported that only with stable parameters and more stable results, can the safety light curtain lay a solid technical foundation for detection. Currently, the equipment that ensures the quality of the safety light curtain has more stable detection results. Moreover, its optoelectronic safety protection devices and a series of CNC instruments are becoming more stable in the use process. By relying on the self-diagnostic technology of these instruments, it is possible to correct errors and ensure consistency in detection. This allows the high-quality safety light curtain to accurately and safely respond, and through scientific detection methods, obtain accurate and consistent detection results to ensure the level of detection.In short, the purchase of high-quality safety light curtains needs to consider issues such as their quality and-sales guarantee. The professional service and accurate design of these instruments determine the quality of their practical use. Therefore, it is important to choose safety light curtains with high standards in terms of quality and corresponding measurement targets. This ensures that the accuracy of the safety light curtain's practical detection meets the application requirements, enabling it to easily meet the demands of precise detection.

A：Quantifying the resolution of safety light curtainsIn various types of safety light curtain products on the market, an important selection parameter is the resolution. The resolution is typically quantified in millimeters (mm), such as common values like 14mm, 20mm, 30mm, and so on. These quantified indicators represent the gap between the sensing functions of the safety light curtain sensors.Is it an intuitive classification or a misconception?According to different resolutions, safety light curtains are usually classified as finger, hand, and body protection types, which are used to indicate the most suitable application scenarios. However, this intuitive classification method is often misunderstood. Many designers believe that they can directly select the type of light curtain based on the body parts that can be injured by the hazard source. However, such a matching method often does not meet the requirements of standardsThe correct selection method for safety light curtains.According to the European standard EN ISO 13855, the minimum distance of safety light curtains from the hazard source should be calculated by taking parameters such as the resolution of the light curtain, installation method, and system's stopping response time into consideration. Different formulas apply for vertical, horizontal, and angled installations. Only by considering the resolution of the light curtain, positioning method, stopping response time, and distance from the hazard source in a comprehensive manner can we adhere to the standard and choose the correct method.For example, if the light curtain selection for a certain device is based on a matching method and a hand protection type is chosen. However, if the positioning of the light curtain in relation to the hazard source is restricted or if the system's stopping response time is too long, it is necessary to consider increasing the resolution of the light curtain to meet the requirements of EN ISO 13855.

A：The through-beam light curtain, also known as an infrared light curtain, light curtain, or photoelectric protection device, is widely used in industrial production.The working principle of a through-beam light curtain is as follows: The emitter emits light, which is received by the receiver, forming a beam of light. The internal circuit processes the ON/OFF status of the beam to trigger actions as stopping the equipment or issuing a safety alert.Through-beam light curtains find applications in various fields including punch presses, shearing equipment, metal cutting devices, industrial robots, injection molding machines, filter presses, automated welding lines, and automated assembly lines.Characteristics of the photoelectric grating: It has a compact design, making it convenient for transportation and installation. It offers various installation methods, providing flexibility and convenience. The photoelectric grating has a self-checking function, ensuring higher safety. It also has the ability to resist water, light interference, and magnetic interference.Some general parameters include a protection height ranging from 30-2000mm, beam pitch options of 10mm, 20mm, 40mm, etc., protection distance ranging from 0-2000mm, response time less than 10mm, and a through-beam configuration. The casing is rated IP65 for protection.In industrial production, the use of photoelectric gratings can effectively prevent safety accidents, eliminate risks for operators and third parties, reduce accident costs, improve company productivity, protect employee safety, and promote stable company development.

A：An increasing number of people have come to realize the importance of using safety grids to protect the personal safety of operators.But now there are more and more manufacturers producing safety light curtains in the market, and people are facing a serious problem: which brand of safety light curtain should they choose?Safety light curtains are used for safety protection. If the quality of the safety light curtain is not guaranteed and it is not sensitive or unresponsive during use, operators may mistakenly believe that the light curtain is still functioning when it is not, leading to an increased risk of safety accidents. Such a protective measure not only fails to achieve the expected effect but can also be counterproductive. It would be a case of diminishing returns.To judge whether a safety light curtain manufacturer is good or not, generally, the following aspects are considered:1. R&D and manufacturing experience: Particularly for high-tech products, the accumulation of technical expertise takes time. Therefore, it is essential to consider the years of experience of a safety light curtain manufacturer in research and development and production.2. Excellence of the after-sales team: During the installation of safety light curtains, various issues may arise both before and after the purchase. Some technical requirements may need guidance from professional technicians. If the after-sales team is not competent, it can lead to delays in project completion and inefficient problem resolution, wasting valuable time.3. Product pricing: When purchasing products, it is natural to seek affordability without compromising quality. In situations where raw material prices are similar, if a manufacturer lacks sufficient production capabilities, the resulting products may not only have mediocre quality but also be priced higher. This is because inefficient production processes and scheduling can lead to increased costs.DADISICK has been involved in the field of safety light curtains for over a decade and has accumulated rich experience in both research and development and production capabilities. The company ensures the quality of its products. Currently, DADISICK offers safety light curtains that have a relatively high cost-performance ratio. The after-sales team is strong and capable of handling any unexpected situations. Moreover, DADISICK currently holds a significant market share in China and enjoys a high level of recognition.

A：Type 2 safety light curtains have the following characteristics:1. Low cost: Type 2 safety light curtains are generally affordable compared to higher level light curtains.2. Performance: Type 2 light curtains typically utilize a single CPU processor for their operation.3. Dual safety channel outputs: They provide two separate output channels for enhanced safety redundancy and reliability4. Self-diagnosis or external periodic testing: Type 2 light curtains can perform self-diagnosis or be externally tested at regular intervals to check for any faults or malfunctions.5. Fault exclusion method for safety performance: These light curtains employ fault exclusion techniques to ensure that they maintain their safety performance even in the presence of potential faults or failures.6. Application range: Type 2 safety light curtains are suitable for use in situations or machines where the risk of injury is moderate or low. They are commonly used in automated production equipment, material handling devices, and similar applications.Type 4 safety light curtains have the following characteristics:1. Higher cost: Type 4 safety light curtains are generally more expensive compared to lower level light curtains due to their advanced features and performance.2. Performance: Type 4 light curtains typically utilize dual CPU processors for increased processing power and reliability.3. Dual safety channel outputs: Similar to Type 2 light curtains, they provide two separate output channels for enhanced safety redundancy and reliability.4. More reliable control, less susceptible to interference: Type 4 light curtains are designed to be less affected by ambient light or other sources of interference, ensuring more reliable operation.5. Self-diagnosis and advanced fault detection: They incorporate self-diagnosis capabilities for fault checking and may have additional features such as higher-level redundant fault cross-checking.6. Application range: Type 4 safety light curtains are suitable for use in high-risk environments or machines where the potential for serious injury is greater. They provide effective protection for dangerous areas.

A：In industrial production, safety has always been a pressing issue. Many machinery and equipment pose high risks and pose a significant threat to the personal safety of operators. Various accidents, big and small, have been occurring frequently in the mechanical industry. However, with the emergence of through-beam safety light curtains (also known as safety light grids or photoelectric protective devices), this problem has been effectively addressed.DADISICK Safety Light Curtain is a protective device used to ensure equipment safety in production, providing maximum protection for the personal safety of operators and enabling safe industrial production.DADISICK Safety Light Curtain has a wide range of applications, and its main components include: emitter, receiver, signal cable, controller, and mounting brackets.Emitter: primarily used to emit infrared beams.Receiver: primarily used to receive the infrared beams emitted by the emitter.Signal cable: used to transmit the control signals returned by the safety light curtain.Controller: responsible for supplying power to the emitter and receiver, as well as processing the light transmission and obstruction signals generated by the receiver's infrared beams to generate control signals.Mounting brackets: brackets used during the installation process of the safety light curtain. They include L1 type brackets, L2 type brackets, J-type reinforced brackets, and N-type aluminum cantilever brackets (T-type iron cantilever).

A：Punch presses are widely used in the manufacturing industry. During operation, punch presses require power to be applied to the worktable where the workpiece is placed. Operators need to position and adjust the workpiece. Without protective devices on the punch press, operators are at risk of injury from the high-speed descending punch.To ensure the safe operation and production of the equipment and protect the personal safety of operators, punch presses need to be equipped with safety protection devices. However, conventional safety devices such as limit switches rely on human observation to control their activation, which often fails to achieve the desired level of protection.Safety Light CurtainTo effectively and quickly eliminate the high-speed inertia of punch presses, installing an infrared optoelectronic protective device (also known as a safety light curtain or safety light screen) is an ideal choice.The optical emitter and receiver of the optoelectronic protective device detect and output detection result information through a controller. When other objects or the operator's body enters the working area of the punch press, the light curtain formed between the emitter and receiver detects the anomaly. The on/off signal of the light curtain is processed by internal circuitry and transmitted to the PLC or alarm circuit through a transmission line, enabling equipment shutdown or triggering a safety alarm. It effectively prevents safety accidents.Currently, DADISICK excels in performance and stability in the market of infrared optoelectronic protective devices. It has a high level of recognition in the industry and is relatively trustworthy and recommended. The selection and purchase of infrared optoelectronic protective devices for punch presses are crucial for industrial production safety and personal safety and should be approached with caution.

A:A zone safety light curtain is a type of safety device that uses invisible beams, such as infrared or laser beams, to monitor whether there are people or objects entering a hazardous area. Its purpose is to protect personnel and equipment. Without such safety measures in place, people and equipment in hazardous areas may be at risk of serious injury or even death. Installing zone safety light curtains can effectively prevent such incidents from occurring. Therefore, it is crucial to install zone safety light curtains in hazardous areas.In addition, area protection safety grids can also help businesses comply with relevant safety regulations and standards, such as the Occupational Safety and Health Administration (OSHA) standards in the United States. These regulations and standards require companies to take necessary measures to ensure the safety of employees and the public, and to prevent accidents from occurring. Therefore, installing area protection safety grids in hazardous areas is also a demonstration of a company fulfilling its social responsibility.In summary, the DADISCHER QSA series of area protection safety grids not only effectively protect the safety of personnel and equipment but also help businesses comply with relevant regulations and standards, fulfilling their social responsibility.Area protection safety grids can be classified into single-sided, double-sided, and three-sided, primarily based on the direction of beam transmission.Single-sided grids are typically suitable for scenarios where only one side needs protection, such as robot operation areas, conveyor belts, and automated assembly lines.Double-sided grids are applicable to scenarios where both sides need protection, such as bidirectional conveyor belts and bidirectional assembly lines.Three-sided grids are used in scenarios where three sides need protection, such as rotating equipment, material elevators, and three-dimensional shelves.In practical applications, it is important to choose the appropriate type of area protection safety grid based on the specific requirements and characteristics of the scene, ensuring the safety and reliability of the system.