Samson 3969, Монтаж и эксплуатация

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EB 3969 EN 39
Malfunctions
8 Malfunctions
8.1 Troubleshooting
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. Alterna-
tively, 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.
Contact SAMSON's After-sales Service department for malfunctions not listed in the table.
Note
8.2 Emergency action
The solenoid valve has a safety function. Up-
on failure of the supply voltage, it automati-
cally closes (closed in the de-energized
state).
The plant operator is responsible for emer-
gency action to be taken in the plant.