What is the key function of interlocks in safety systems?

The key function of interlocks in safety systems is to ensure safe operation. Interlocks are mechanisms designed to prevent certain actions or processes from occurring unless specific safety conditions are met. This could involve preventing the operation of machinery if a safety guard is not in place, or ensuring that equipment can only be operated in a safe sequence. By enforcing these conditions, interlocks significantly reduce the risk of accidents and hazardous situations. They play a crucial role in protecting both personnel and equipment by halting operations when unsafe conditions are detected, thus promoting the overall safety of the system.