Samson S2000 Instructions d'exploitation Page 56

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 124
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 55
7 Start-up – Settings
WARNING!
Mount the positioner, keeping the following
sequence:
1. Remove protective film from pneumatic
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 on display after connecting the
electrical auxiliary power:
Note: The start-up can also be performed
without the connected bus network, provided
a DC voltage source (9 to 32 V) is con-
nected at the bus connection terminals.
Make sure a sufficiently protected source is
used for intrinsically safe positioners!
4
tEStinG runs across the display and then
the fault alarm icon appears and blinks
on the display when the positioner has
not yet been initialized. The reading in
-
dicates the lever position in degrees in
relation to the longitudinal axis.
Reading when the
positioner has not yet been
initialized
4
If Code 0 appears on the display when a
positioner has been initialized. The
positioner is in the last active operating
mode.
WARNING!
The actuator stem moves while the start-up
settings are being performed.
Do not touch the actuator stem or obstruct it
to avoid risk of injury to hands or fingers.
NOTICE
Perform the start-up settings in the same se
-
quence as listed (section 7.1 to section 7.6).
Note: The positioner performs a test in the
start-up phase while following its automa
-
tion task at the same time. During the
start-up phase, operation on site is unre
-
stricted, yet write access is limited.
7.1 Defining the valve closed
position
To adapt the positioner to the operating di-
rection of the actuator, set slide switch to AIR
TO OPEN or AIR TO CLOSE .
4
AIR TO OPEN = Signal pressure opens
the valve, for fail-safe position: actuator
stem extends/fail close
4
AIR TO CLOSE = Signal pressure closes
the valve, for fail-safe position: actuator
stem retracts/fail open.
NOTICE
The AIR TO OPEN (AtO) setting always ap
-
plies to double-acting actuators.
For checking purposes:
After successfully completing initialization,
the positioner display should read 0 % when
56 EB 8384-4 EN
Start-up Settings
Vue de la page 55
1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 123 124

Commentaires sur ces manuels

Pas de commentaire