fail-safe control

fail-safe control

A type of control that automatically puts the controlled device in a safe condition if the control system should ever fail. For example, if one or two circuits fail, the third takes over.
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References in periodicals archive ?
The actuator assembly also includes a hydraulic reserve tank used for pressure, flow control and re-injection, providing accurate positional, modulating, and fail-safe control of the larger main valve.
The G-1AMPx-LTCH latching relay output module is designed to provide fail-safe control by latching the last output contact state prior to power-down.
The PSR-FSP2/2x1 and PSR FSP/2x1 process safety relays are described by the company as safe interposing relays specifically designed to operate with fail-safe controls in process applications.
The PSR-FSP process safety relay from Phoenix Contact (Middletown, PA) is a safe coupling relay specifically designed to operate with fail-safe controls in process applications.
"Many of our 8-bit MCUs include integrated oscillators with fail-safe controls, power sequencers, a power-on reset, and a brown-out and a low-voltage detector," noted Microchip's Schmidt.
Mtcr running for about 20 min at sublegal temperatures, one of the fail-safe controls succeeded in performing its function, and the system shut down.