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        Significance of finder safety relay

        文章出处:芬德电子科技 / 作者:芬德电子科技 / 发表时间:2024-01-03

        Manufacturers in various manufacturing industries at home and abroad have always attached importance to safety and protection in the manufacturing process. With the continuous improvement of production capacity, manufacturers have higher and higher requirements for equipment automation, and machines and equipment are becoming more and more complex and faster. Therefore, manufacturers have higher and higher requirements for the safety of these machines. We should not only ensure safety and reliability, but also ensure flexibility and maintainability. This puts forward certain requirements for the correct and reasonable design and selection of safety components. Finder safety relay also has a place in domestic and foreign markets.


        Because the safety control system must provide highly reliable safety protection means, it can avoid the unsafe state of the machine to the greatest extent, protect the production equipment and personal safety, prevent the occurrence of malignant accidents and reduce losses. The system provides safety protection for machines and equipment during startup, shutdown, process disturbance and normal maintenance operations. Once the machine itself is in danger, or the danger is caused by human factors, the system will respond immediately and output the correct signal to make the machine stop safely, so as to prevent the occurrence of danger or the spread of accidents. A very important device in the safety system is the relay, and the finder safety relay plays a very important role.


        In machines with safety requirements, ordinary relays or PLC are widely used as control modules to monitor safety functions. On the surface, such a machine can ensure safety under certain conditions. However, when ordinary relays and PLCs fail due to their own defects or external reasons (such as contact welding, electrical short circuit, processor disorder, etc.), they will lose their safety protection functions and cause accidents. Finder safety relay avoids many problems.

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        We can use the finder safety relay to establish a safety loop. In the last century, with the emergence of safety relays, more and more applications in various industrial equipment. It can be used to control a single safety function and is suitable for small safety control systems. Its safety output usually has relay contact output or transistor output. No matter which output structure is adopted, the finder safety relay can ensure at least two channel control outputs. When one output channel fails, the other redundant channel can still ensure the safety function of the safety relay and check the faulty channel in time. This control method has moderate cost and can achieve a high level of safety.