Problem
|
Possible Error
|
Solution
|
Actuator does not react to
electrical control signal
|
There is no supply pressure
at the actuator
|
Supply the right pressure to
the actuator
|
Actuator does not react good
to electrical control signal
|
There is sufficient supply
air pressure but insufficient supply air capacity
|
Take care the supply air
tubing has the right dimensions
|
Supply pressure too low,
causing pilot operated solenoid valve to fail
|
Check that supply pressure at
the actuator and solenoid is sufficient to operate the actuator
|
Solenoid valve is not mounted
properly
|
Check the solenoid valve
mounting
|
Speed control throttle (if
present) blocks air flow
|
Turn the speed control more
open
|
Manual override (if present)
on the Solenoid Valve is locked
|
Unlock manual override on the
solenoid valve
|
Air leakage between actuator
and solenoid valve
|
Sealing between solenoid
valve and actuator is not mounted air tight
|
Reassemble solenoid valve
taking care, that all seals are in place
|
Double-acting actuator will
only move to “open” position
|
Actuator has wrong
Solenoid valve configuration
|
Mount a solenoid valve
suitable for double acting Actuators (4/2 or 5/2 function)
|
Check that conversion plate
on solenoids, that have both 3/2 and 5/2 functions, is in the right position
|