Final Switching Device. (Machine Safety) Machine's safety-related control system that interrupts the machine primary control element circuit when the output signal switching device goes to the OFF-state.
(Machine Safety) Abbreviation for Final Switching Device. Component of a safety-related control system that interrupts the circuit to the machine primary control element when the output signal goes to the OFF-state.
The persistent inability to attain or maintain adequate genital lubrication or swelling responses resulting in personal distress. FSD includes problems associated with sexual desire, arousal, orgasm and pain.