DVC 5370 Manual de instalação, operação e manutenção - Página 15
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Problem
Valve is moved
slowly
Compressed air source connection is not
Valve couldn't be
turned on/off
With air, but the solenoid doesn't work. •To inspect if the power is on.
Without position
The position of valve shaft hasn't been
signal
signal
Air leakage
Knocking sound
There's something wrong with gasket
Filled with water
6. Debugging: reason and solution
Reason
Lack of air source
The valve is not controlled by the
actuator effectively.
The exhaust hole is clogged or the
exhaust velocity is too slow.
opened.
Air pressure is not enough.
The interior of actuator is polluted.
detected by the detector.
detected by the detector.
Air source leaks from controller
continuously.
The globe valve is closed too fast.
seal.
•To inspect if the circuit of compressed air in valve
is opened.
•To inspect the supplied pressure.
•The flow is not enough.
•To inspect the supplied pressure of compressed
air.
•To replace with a pneumatic actuator of higher
specification.
•To inspect exhaust hole to clean clogging, and to
change silencer.
•To inspect the compressed air source passage of
controller.
•To increase supplied air pressure.
•To inspect compressed air pressure and pipeline.
•To adjust the height of detector.
•To inspect if the detector is normally connected
•To inspect if the detector is normally connected
with inductive pole.
•To inspect all the pneumatic connection of the
internal components in controller.
•To install a throttle valve on the air supply
interface of actuator to control the speed of air
source.
•To tighten lid and the screw on the base.
•If necessary, to change base, lid and gasket.
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Solution