30
EB 3135-1 EN
Start-up and operation
6.1.5
Mounting the actuator
Î
See Fig. 3
1. Place the electric actuator (10) onto the
connecting piece (8) of the valve and fas-
ten with the coupling nut (10.2). Observe
the tightening torques specified in sec
-
2. Connect the supply voltage to the electric
actuator (see section 6.1.6).
6.1.6
Connecting the actuator
Connection of the electric actuator to the
supply voltage is described in the associated
mounting and operating instructions of the
electric actuator. See associated actuator
documentation.
6.1.7
Configuring the actuator
The electric actuator versions with positioner
as well as electric actuators with process
controller can be adapted to the control task.
Configure the actuator as described in the
associated actuator documentation.
For electric control valves with positioner, an
initialization needs to be performed after the
initial start-up (see associated actuator docu-
mentation).
Note
6.1.8 Quick check
The Type 2488 Valve combined with an elec
-
tric actuator with fail-safe action
(Type 5x25-x and TROVIS 5x25-x) is certi
-
fied as DIN tested according to
DIN EN 14597.
SAMSON valves are delivered ready for
use. To test the valve's ability to function, the
following quick checks can be performed:
Travel motion
The movement of the actuator stem must be
linear and smooth.
Î
Open and close the valve, observing the
movement of the actuator stem.
Î
Apply the maximum and minimum con-
trol signals to check the end positions of
the valve.
Î
Check the travel reading at the travel in-
dicator scale.
Fail-safe action for electric actuators and
electric actuators with process controller
with fail-safe action
Î
Switch off the supply voltage.
Î
Check whether the valve moves to the
fail-safe position.
