Grundfos Conex DIA-1 Montage- Und Betriebsanleitung Seite 35

11.6.2 Selection and configuration of a switching
controller
1. Select the line "switching ctrl." using the [Up] and
[Down] buttons, and press [OK] to change to the
"switching ctrl." menu.
2. Select the line "limit/2-position" using the [Up]
and [Down] buttons.
3. Press [OK] to jump to the "relay 1" menu
automatically.
4. Using the [Up] and [Down] buttons, select one of
the following options:
– off
– limit contact
– interpulse controller (2-position)
– pulse frequency controller (2-position).
If a limit contact/two-position controller has been
selected, another limit contact/two-position controller
may be selected. An additional three-position
controller cannot be selected.
– After the configuration of the first two-position
controller/limit contact (relay 1) has been
completed, press [OK] to jump to the "relay 2"
menu.
If a three-position step controller has been selected,
no additional limit contact or two-position controller
can be selected.
Two-position and three-position step controllers:
As regards controller behaviour, one of the following
types of control can be selected:
• P: proportional controller (not with three-position
controller)
• PI: proportional-plus-integral controller
• PID: proportional-plus-integral-plus-derivative
controller (not with three-position controller).
As regards the setpoint, the following applies:
• With selected internal setpoint, adjustments
within the measuring range are possible.
• With externally selected setpoint, the operator
can choose between the standard current outputs
0-20 mA and 4-20 mA.
11.6.3 Selection and configuration of the
continuous controller
The continuous controller can always be used.
1. Select the line "cont.controller" from the
"controller" menu using the [Up] and [Down]
buttons, and press [OK] to switch to the
"cont.controller" menu.
2. The control direction can - similarly to
two-position controllers - be set to either upward
control (downward violation of setpoint) or
downward control (upward violation of setpoint).
See section 11.6.2 Selection and configuration of
a switching controller.
3. As regards controller behaviour, either of the
controller types P, PI, PID can be selected.
See section 11.6.2 Selection and configuration of
a switching controller.
• As regards the setpoint, the following applies:
– With selected internal setpoint, adjustments
within the measuring range are possible.
– With externally selected setpoint, the operator
can select between the standard current
outputs 0-20 mA and 4-20 mA.
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