Samson 3966, Монтаж и эксплуатация

Страница: 34 / 48

34 EB 3966 EN
Malfunctions
8 Malfunctions
Contact SAMSON's After-sales Service for
malfunctions not listed in the table (see sec
-
tion 10.1).
Note
8.1 Emergency action
The solenoid valve has a safety function.
Upon failure of the supply voltage, it
automatically closes (closed in the de-
energized state).
The plant operator is responsible for emer-
gency action to be taken in the plant.
Malfunction Possible reasons Recommended action
The solenoid valve does not
switch.
Incorrect terminal assignment. Check electrical connection.
Turn turnable gasket to external
pilot supply.
Connect port 9 and supply it
with compressed air.
Alternatively, turn the turnable
gasket to internal pilot supply.
The solenoid valve leaks to the
atmosphere.
Gasket slipped. Check that the formed seal and
O-rings are correctly seated.
Pilot pressure is insufficient and
an intermediate position of the
solenoid valve is reached (air is
constantly vented)
Check the pressure line.
Check the pressure line for
leakage.
Use a larger cross-section for
the pressure line.