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