57
Controller Menus
continued
3position controller
1. Press the button
in the menu
3pos. controller setup
.
2. The menu
3pos. controller
is password
protected.
Press
and enter your password.
3. The name of the controller is highlighted in
yellow. The current actual value is shown
below this and the setpoint is shown next to
that.
4. To change the internal setpoint, select the
green input field.
5. The current value appears in the input mask.
The on-screen keyboard can be used to
modify this.
6. Use the arrow buttons to select Automatic mode, Stop or Manual mode.
The type of operation that is set is shown in yellow above the arrow buttons.
7. In manual mode, a mask with buttons opens. Use the buttons to open or close the
valve continuously. The selected button is highlighted and the lamps to the left of
the buttons indicate the valve lift.
8. The controller parameters can be entered for the PID controller in the input fields
P
(Proportional),
I
(Integral) and
D
(Differential).
9. The current value appears in the input mask. The on-screen keyboard can be used to modify this.
10. Below the status display
Enabled/Disabled
and the controller that has been set, the actual value
(X), the setpoint (W), the manipulated variable (Yw) and the position feedback signal (Yx) are
graphically represented as a bar graph.
Note
Only the internal setpoint can be set in this menu.
When the switch position is toggled from Automatic mode to Stop, the current manipu-
lated variable (Yw) of the controller is transferred. This only applies when operating as a
positioner.
If a position feedback signal is parametrised, the controller functions as a positioner.
If there is no position feedback signal parametrised, or if this sensor is faulty, the con-
troller functions as a 3-pos. stepping controller.
The 3-point controller functions as a PI controller.
An I part is a mandatory requirement.
If the softstart is activated, the status is shown by the Int. setpoint.
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