Samson 3730 Series Mounting And Operating Instructions page 97

− Manually selected OPEN position (MAN)
Initialization mode for globe valves requiring OPEN position to be entered manually (see
section 7.5.3)
− Substitute calibration (SUb)
This mode allows a positioner to be replaced while the plant is running, with the least
amount of disruption to the plant (see section 7.5.4).
For normal operation, simply start initialization by pressing the INIT key after mounting the
positioner on the valve and defining the fail-safe position and setting the volume restriction.
The positioner only needs to work with its default settings. If necessary, perform a reset (see
the 'Operation' section).
Note
An initialization procedure in progress can be canceled by pressing the rotary pushbutton.
STOP is displayed for three seconds and the positioner changes to the fail-safe position
(SAFE). Clear the fail-safe position again over Code 0 (see the 'Operation' section).
The time required for the initialization proce-
dure depends on the actuator transit time,
which means that initialization can take a few
minutes.
After a successful initialization, the positioner
runs in closed-loop operation indicated by the
closed-loop operation icon.
A malfunction leads to the process being can-
celed. The initialization error is displayed ac-
cording to how it has been classified by the
condensed state (see the 'Malfunction' section).
EB 8384-4 EN
Start-up and configuration
Alternating readings
Initialization in progress
Icon depending on ini-
tialization mode select-
ed
Bar graph display indi-
cating the progress of
the initialization
Initialization successfully
completed. Positioner in
automatic mode ( )
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