CYNDAR safety relay
CYNDAR safety relay is a special relay device, which is designed to provide a higher level of safety protection. It does not mean a "fault-free relay", but a relay that can make regular movements when a fault occurs to ensure the safe operation of the system. Safety relays are usually composed of several relays and circuits. By complementing each other's abnormal defects, they can achieve the complete function of a correct and low-false-action relay. It adopts a forced-guided contact structure inside, which can ensure safety even if the contact is fused.
The main functions of safety relays include:
1. Prevent electric shock: It can monitor the circuit status in real time. Once it detects that the human body is in contact with a charged body, it will immediately cut off the power supply, thereby effectively preventing electric shock accidents.
2. Prevent equipment damage: When the system fails or is abnormal, the safety relay can cut off the power supply in time to prevent the equipment from being damaged due to overcurrent, overvoltage, etc.
3. Prevent fire and explosion: In some special environments, such as the petroleum and chemical industries, safety relays can detect potential dangerous situations in time by monitoring changes in environmental parameters, and take corresponding measures to prevent fire and explosion accidents.
4. Provide emergency stop function: In some equipment that requires emergency stop, safety relays can provide emergency stop function. When the equipment fails or an accident occurs, the power supply can be cut off immediately to stop the operation of the equipment.
The working principle of the safety relay is based on the design of its internal circuit. It accepts safety input, and through the judgment of the internal circuit, it outputs the switch signal to the control circuit of the equipment in a deterministic manner. In short, safety relays are all dual-channel signal types. Only when the signals of both channels are normal can the safety relay work normally. During the working process, as long as any of the channel signals is disconnected, the safety relay will stop outputting until the signals of both channels are normal and reset before it can work normally. This design ensures the stability and reliability of the safety relay.
Safety relays have a wide range of applications, including but not limited to modern industrial automation and electrical control systems, workplace machine safety, etc. By providing a high level of safety protection, safety relays play an important role in ensuring the safety of equipment and personnel and achieving efficient
