78 EB 8331-4 EN
Malfunctions
15.3 Emergency action
The valve, on which the electric actuator with
fail-safe action is mounted, is moved to its
fail-safe position upon power supply failure
(see section3.1).
The plant operator is responsible for emer-
gency action to be taken in the plant.
Emergency action in the event of valve fail-
ure is described in the associated valve doc-
umentation.
Tip