Bytorent | Safety light curtain selection guide, accurately match industrial safety needs

Safety light curtain plays an important role in the field of industrial safety, and its core function is to accurately detect and effectively prevent personnel or objects from straying into dangerous areas, so as to effectively avoid accidental injury and equipment damage. With the advancement of the wave of Industry 4.0, the application scenarios of safety light curtains are expanding day by day, and their role in improving the safety of the operating environment is becoming more and more significant.

However, in the face of a wide range of safety light curtain products on the market, selection has become a major problem faced by many enterprises. In the complex market, how to select the most suitable safety light curtain products according to their actual needs? Please keep this safety light screen selection guide!

The basic principle and application of safety light curtain

The safety light curtain consists of a transmitter and a receiver, the transmitter emits infrared beams, and the receiver receives these beams. When the beam is blocked, the light curtain will immediately send a signal to trigger the safety control device (such as the emergency stop device) to stop the operation of the machine, so as to protect the safety of personnel or equipment.

Application scenario

Hazardous area protection: Used to protect operators from mechanical equipment, such as punching machines, injection molding machines, etc.

Entrance and exit monitoring: used to detect people or objects entering a specific area, such as automated warehouses, assembly lines, etc.

Object detection: Used to detect the presence or location of objects, such as object sorting on a conveyor belt.

Light curtain selection guide

Light curtain selection is a complex process that needs to consider many factors. When selecting a light curtain, how to ensure that the selected product can be adapted to the existing production equipment or safety system? It is recommended to start from the following dimensions and carefully consider.

1.Clarify security needs and risk assessment

Determine the safety level: Select the safety level of the safety light curtain according to the danger degree caused by the equipment to ensure that the selected safety light curtain meets the corresponding safety performance requirements. The selection criteria for safety levels are as follows:

Usually referred to as 'two' and 'four' light curtains, in fact, refers to the IEC 61496 standard type 2 and type 4 of these two light curtains. The second-level light curtain can generally reach the PLc level in ISO 13849, and some high-performance products can even reach the PLd level; The four-stage light curtain can reach the PLe level.

The higher the level, it means that the probability of dangerous failure is smaller, there is a risk of major casualties should choose a four-level safety light curtain, non-major casualty risk can choose a two-level safety light curtain.

Evaluate the type of protection: Select the appropriate optical axis spacing and protection height according to the part you want to protect (such as fingers, palms, bodies, etc.).

In general, to protect the fingers choose 10mm spacing, to protect the palm choose 20-30mm spacing, to protect the arm or body choose 40mm or greater spacing. It should be noted that when the safety distance is large, the above principles do not apply, but follow the principle that the equipment can be stopped before the human body reaches the danger source.

2.Consider equipment and environmental factors

Determine the shooting distance: according to the actual situation of the machine equipment to determine the linear distance between the transmitter and the receiver (shooting distance), as well as the required length and width of the light curtain, to ensure that the safety light curtain can fully cover the dangerous area.

Consider the signal output mode: there are many output modes of the safety light curtain, such as relay output, NPN output, PNP output, etc. Select an appropriate output mode based on the control system and interface requirements of the device.

Evaluate the installation environment: Select an appropriate installation method (such as side installation of L-shaped support, rotating steel tube support of base, etc.) and optical curtain material (such as plastic, metal, and optical fiber) based on installation space, light conditions, and electromagnetic interference.

Consider other interference factors: according to the use of the equipment environment, consider whether the safety light curtain needs to have anti-electromagnetic interference, anti-arc and laser interference, anti-Japanese light interference and waterproof and dustproof characteristics.

3.Focus on product performance and quality

Light curtain resolution: Select a safety light curtain with the right resolution to ensure that it can detect the smallest object size required for protection.

Light curtain response time: Pay attention to the response time of the safety light curtain to ensure that it can react quickly after detecting a danger signal to avoid accidental injury.

Light curtain durability: Consider the service life and anti-interference ability of the safety light curtain, and select high protection grade (such as IP65, IP67) products according to dust, humidity and other factors in the environment to ensure reliable quality, stable performance and durability of the light curtain.

Brand and after-sales: Choose well-known brands of safety light curtain products, and pay attention to its after-sales service system, to ensure that in the process of use can get timely technical support and maintenance services.

Baidoen GM series safety light curtain product highlights

Bytorent GM series safety light curtain can be widely used in automated production lines, warehousing and logistics, machinery equipment and tools, automotive industry and other requirements for the setting of personal protection of dangerous equipment, to provide efficient and reliable safety protection.

1. Complete models: A full range of products GM1 (two-level light curtain), GM2/GM3 (four-level light curtain) complete specifications and models, perfect for all kinds of complex and changeable industrial application scenarios.

2. High safety: The protection height can reach 150mm-1800mm, which can stop the operation of related equipment immediately when the human body or object is detected to enter the dangerous area covered by it, effectively preventing accidents.

3. High flexibility: can be customized according to different workplaces and requirements, easily adapt to diverse industrial safety and protection needs, suitable for a variety of mechanical equipment and production lines.

4. High sensitivity: With excellent high sensitivity, it can quickly identify objects entering the protected area, and immediately trigger the alarm signal to ensure a rapid and accurate safety response.

5. Easy installation: The safety light curtain is easy to install, only need to fix the transmitter and receiver in the appropriate position, and then connect through the cable.

6. Strong anti-interference ability: The product has good resistance to electromagnetic signals, stroboscopic lights, welding light and other interference sources.

7. High dustproof and waterproof rating: IP67 waterproof and dustproof rating, good sealing, upper and lower sealing cover isolation using encryption design, suitable for use in harsh environments.

8. Perfect self-test function: it can monitor the electronic circuit of the sensor in real time to ensure that different mechanical equipment sends out wrong signals.

9. Durable: The shell is made of all-metal material, supporting the working ambient temperature of -10~+55. The unique design makes the product have high vibration and impact resistance, reliable and durable, and not easy to age.

How to select Bytorent safety light curtain

The Bytorent GM series safety light curtain includes GM1, GM2 and GM3 products, of which GM1 belongs to the secondary safety light curtain, while GM2 and GM3 are the quaternary safety light curtain, and the whole series of products has more than 200 models.

So, how to choose the most suitable model among the many safety light curtains? You can filter from the product model naming rules. First of all, the selection diagram of GM1 (secondary light curtain) for reference:

Looking at the selection drawing alone may be difficult to understand, next we take the safety light curtain model 'GM1-2-10-050-H' as an example to explain in detail:

①-- 'GM1', which means the product series is GM1.

②-- 'None', indicates that the model is Transceiver set.

③-- None: indicates that the model is optical synchronization.

④-- '2' indicates that the safety level is Type 2.

⑤-- '10', indicating that the beam gap is 10mm.

⑥-- '0150', indicating that the protection height of this model is 150mm.

⑦-- 'H', indicating that the product detection distance of this model is 0.1-1.0m.

⑧-- None: the output type is PNP.

In order to meet the safety protection needs of different industrial scenarios, each model of the GM series safety light curtain has been optimized and upgraded for specific safety protection needs, so there are also large and small differences in parameter configuration, and users need to carefully consult the product specifications when selecting.

The Bytorent safety light curtain specification lists the full range of product models, product features and functions, safety information, installation guidelines, operation and maintenance recommendations. Enter the official website (http://www.bytorent.net/) or the QR code of 'Data Download' at the end of the identification document for access.

With the continuous innovation of science and technology, the functions of the Bytorent safety light curtain are increasingly rich, and the performance is also continuously optimized and upgraded. In the future, Torent technology will continue to enable industrial safety production with more efficient and flexible safety solutions, providing a solid guarantee for the continuous safety and stability of the production process.