7 ND90 71 en
25
5.4.2 MAN
During this mode the valve position may be controlled
manually by using the keypad and pressing the
+
or
-
key. The position of the manually driven valve is not saved
in the memory of the controller, i.e. the valve will not return
to the same position after signal failure. However, the valve
may be driven back into position after signal failure by
using
+
and
-
keys. The manual control starts from the
current position of the valve after the MAN-mode is acti-
vated. In order to change the manual setpoint return to the
measurement monitoring view and go to target position
measurement. Press the
?
key shortly to activate the tar-
get position editing, text
TPOS
starts to blink and now you
are able to edit the setpoint by pressing
+
or
-
key. The
setpoint changes in 0.1 % increments/decrements in spite
of the selected unit and the valve starts to move immedi-
ately. A continuous push changes the setpoint faster. In
order to view other measurements, press the
?
or
=
key
and select a measurement. Repeat the previous steps if you
would like to alter the setpoint value again.
Fig. 20
Configuration, ND9000H and ND7000H
— brief push
HRTI
6
HRTI
6
HRTI
7
Fig. 21
Configuration, ND9000F
— brief push