Moniteur 50 Series SMART Positioners - Manual (Page 64)

Operation
4-2
Positioner SIPART PS2/SIPART PS2 PA
C79000-G7476-C150–01
4.3 Modes
Parameter value
Potentiometer setting [%]
Parameter number
and parameter name
Not initialized
(obtained with Preset)
1x
> 5 s
> 5 s
Display
Position [%]
Setpoint [%]
Position [%]
Setpoint [%]
Automatic
Mode
Manual
P manual operation
Configure
xx.xxxx
> 5 s
Change position
with
Change position
with
Preset
Fig. 4-2 Changing mode
Automatic mode is the normal mode. The initialized (and configured)
positioner automatically responds to changes in the setpoint and conti-
nuously tries to achieve the lowest possible system deviation.
The decrement and increment buttons have no functions.
At the top of the display the current position is displayed in percent.
The lower line shows the selected mode “AUT” on the left and the cur-
rent setpoint as a percentage on the right.
If you press the mode button briefly the instrument switches from auto-
matic mode to manual mode.
It is possible to move through the position range of the actuator manu-
ally using the increment and decrement buttons. The actuator is ad-
justed in progressively longer short steps. If at the same time you press
the previously unpressed increment or decrement button the actuator is
set with continuous travel.
Once you release the +/– buttons the actuator remains in its current
position. The internal setpoint is adjusted to the current manipulated
variable. Because the internal control loop is closed in manual mode,
the current position is retained even in the event of a leak.
The current position is shown on the display as a percentage. The
lower line shows the selected mode “MAN” on the left and the current
setpoint on the right.
Automatic mode
(AUT)
Manual mode
(MAN)