ENADE Engenharia Mecânica Practice Questions - ENADE Engenharia Mecânica - Exame Nacional De Desempenho Dos Estudantes Exam

A single component fault does not lead to the loss of the safety function, and the fault is detected at or before the next demand upon the safety function, or accumulation of undetected faults does not prevent safety action. The system relies entirely on single-channel electromechanical relays with periodic manual calibration intervals. Safety functions are integrated solely via software without hardware redundancy or positive-action electromechanical contacts. The occurrence of a single electrical short-circuit immediately permits machine cycling if an optical sensor is illuminated.