One of the key safety features of relays is their built-in self-diagnosis capabilities. Modern safety relays continuously monitor their own functioning, checking for internal issues such as contact wear, wiring problems, or faults in the control logic. This self-monitoring can help detect potential malfunctions before they affect the larger system. In case of any faults, the relay can trigger an alarm or take corrective actions, such as shutting down the system to prevent further damage or unsafe conditions. This proactive approach minimizes the risk of failure, ensuring that any problems are identified and addressed promptly.