1. The safety light curtain with no level is not a safety product, and it has not adopted any safety technology. We can understand it as a group of ordinary photoelectric switches connected in series. Even if it is of good quality and durable, once a certain internal device is damaged, loosened or fails due to accidental factors such as power failure, there is no guarantee what will happen. For example, we cannot guarantee whether the output relay will be in the closed state or the open state.
2. The secondary safety light curtain adopts some safety technologies, and it is a product with European secondary safety certification. He uses a single channel without redundant circuits. Because of the loop self-check function, the occurrence of a fault can be found in the next detection loop and appropriate protection actions can be taken. The problem is that if multiple faults occur cumulatively, it may cause problems such as loop self-check errors or output errors. Therefore, it is clearly stipulated in European standards that the press cannot use secondary safety protection products;
The third and fourth level safety light curtains also use safety technology, and are dual-loop redundant, real-time cross-checking. Any failure will be found immediately and the correct safety protection actions will be taken. Even if the light curtain is completely damaged, it can ensure the personal safety of personnel from harm. European standards stipulate that pressure machine tools can only use four-level safety protection products
Welcome to the safety grating丨safety light curtain丨Cyndar website, our company is located in the economic center of China-guangzhou, which has a developed economy, developed traffic and dense population.
Main business: Shenzhen Baiyinhui Technology Main business: photoelectric protection device, safety grating, safety light curtain, punch protector, infrared protector, photoelectric hand guard, safety carpet, safety edge, obstacle avoidance laser scanner, navigation laser scanning instrument.
