Samson 3730-2, Монтаж и эксплуатация

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EB 8384-2 EN 63
Start-up and settings
7 Start-up and settings
Risk of malfunction due to incorrect sequence
of mounting, installation, and start-up.
Keep the following sequence.
1. Remove the protective film from the pneu-
matic connections.
2.
Mount the positioner on the control valve.
3. Connect the supply air.
4. Connect the electrical power.
5. Perform the start-up settings.
Reading after connecting the electrical pow-
er supply:
tEStinG runs across the display and the
fault alarm icon appears and blinks on the
display when the
positioner has not been
initialized . The reading indicates the lever
position in degrees in relation to the mid-ax -
is.
Reading when the positioner
has not yet been initialized
Code 0 is displayed when a positioner has
been initialized . The positioner is in the last
active operating mode.
Risk of injury due to the actuator stem ex-
tending or retracting.
Do not touch or block the actuator stem.
The positioner performs a test in the start-up
phase while following its automation task at
the same time.
During the start-up phase, operation on site
is unrestricted, yet write access is limited.
Perform the start-up settings in the same se-
quence as described (section 7.1 to sec -
tion 7.6).
7.1 Defining the fail-safe posi -
tion
Define the fail-safe position of the valve
(0 %) taking the valve type and the actua
-
tor's direction of action into account. Position
the AIR TO OPEN/AIR TO CLOSE slide
switch accordingly:
−
AIR TO OPEN setting
Signal pressure opens the valve, e.g. for
a fail-close valve
The AIR TO OPEN setting always applies to
double-acting actuators.
− AIR TO CLOSE setting
Signal pressure closes the valve, e.g. for
a fail-open valve
For checking purposes: after successfully
completing initialization, the positioner dis -
play must read 0 % when the valve is closed
and 100 % when the valve is open. If this is
not the case, change the slide switch position
and re-initialize the positioner.
NOTICE !
WARNING !
Note