Operating instructions

Zero calibration has started, the display
blinks!
The positioner moves the control valve to the
CLOSED position and recalibrates the inter
-
nal electric zero point.
When the zero calibration has been suc
-
cessfully completed, the positioner returns to
closed loop operation (status indication).
Canceling zero calibration
The zero calibration can be canceled by
pressing . The positioner then moves to
the fail-safe position (indicated by
S on the
display).
A new zero calibration can be started di
-
rectly afterwards.
7.8 Reset
The positioner is in closed-loop operation
after the initialization has been successfully
completed.
A reset causes an initialization to be can
-
celed and all parameters settings are reset to
the default settings (refer to section 8).
When
P0 status indication mode of the dis
-
play is selected:
Press down for six seconds, the display
counts down
6-5-4-3-2-1 and ESC appears
on the display.
Turn ,
RST appears on the display.
Press to reset parameters to their default
settings.
7.9 Manual adjustment
The valve position can be moved as follows
using the Manual adjustment function:
Turn until Code P14 appears.
Press down for six seconds, the display
counts down
6-5-4-3-2-1.
–
The manual set point (w man) is indicated
on the display of an initialized positioner.
–
The lever position in degrees in relation to
the longitudinal axis is indicated on the
display of a positioner that has not been
initialized.
Turn .
– Initialized positioner:
The manual set point is adjusted in steps
of 0.1 %. You can move the valve con-
trolled within its range.
– Positioner that has not been initialized:
By adjusting the manual set point, the
valve is only moved in one direction un
-
controlled.
Press to deactivate the manual adjust
-
ment function.
Note: The Manual adjustment function can
only be exited as described. The positioner
does not automatically exit this function and
return the display to the status indication
mode after the positioner has not been oper
-
ated for three minutes.
44 EB 8384-1 EN
Start-up