Note:
For standard operation, after the
positioner is mounted on the valve and the
volume restriction has been set and the
fail-safe position has been checked over
Code
P2
, start initialization over Code
P15
to ensure the optimal functioning of the
positioner.
The positioner works with its standard set-
tings (default settings)
.
WARNING!
During the initialization, the control valve
moves through its entire travel/angle of ro-
tation range. Therefore, do not start initial-
ization while a process is running, but only
during start-up, when all shut-off valves are
closed.
Start initialization by activating Code
P15
as follows:
Turn
until Code
P15
appears
Press
button six seconds long,
6-5-4-3-2-1
- is counted down on the display.
Initialization has started, the display
blinks!
Note:
The time required for the initialization
procedure depends on the actuator transit
time and can take a few minutes.
Initialization successfully
completed, positioner runs
in closed loop operation
After a successful initialization, the
positioner runs in closed loop operation in-
dicated by the
closed-loop operation
icon and control position in % predeter-
mined by the reference variable on the dis-
play.
A malfunctioning leads to the process being
interrupted. The
fault icon appears on
the display. See section 7.6 for details.
Canceling initialization
The initialization can be canceled by pressing
. The positioner then moves to the fail-safe
position (indicated by
S
on display).
First initialization:
A new zero calibration
can be started directly afterwards.
Initialization following the first initializa-
tion:
Cancel the fail-safe position and return
to original operating mode.
To cancel the fail-safe position, proceed as
follows:
When
P0
status indication mode of the dis-
play is selected:
Press
,
ESC
appears.
Turn
,
RST
appears.
Press
to reset the fail-safe position.
The positioner runs again using its original
settings.
42
EB 8384-1 EN
Start-up
%
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