ABB SensyTemp TSA101, Инструкции по безопасности

Страница: 7 / 22

Terms and definitions
SM/TSP/SIL-EN SensyTemp TSP 7
5 Terms and definitions
Terms Definitions
Dangerous failure A failure that has the potential to place the safety-related system in
a dangerous state or render the system inoperative.
Safety-related system A safety-related system carries out the safety functions that are
required to achieve or maintain a safe state, e.g., for a system.
Example: A pressure meter, a logics unit (e.g., limit transmitter) and
a valve constitute a safety-related system.
Safety-related
functions A specified function that is carried out by a safety-related system
with the goal, under consideration of a defined dangerous incident,
of achieving or maintaining a safe state for the system. Example:
limit temperature monitoring.