Operation; System Operating Mode (2.1.1) - Grundfos CONTROL MPC Installation And Operating Instructions Manual

11.5 Operation (2)

In this menu, the most basic parameters can be set, such as
setpoint, operating mode, control mode and forced control of
pumps.
11.5.1 Operation (2)
A
C
Fig. 15 Operation
Description
The column shows the setting range. In closed-loop control, it
corresponds to the range of the primary sensor, here 0-16 bar.
In open-loop control, the setting range is 0-100 %.
At the left hand of the column, the selected setpoint 1 (A) is
shown, i.e. the value set in the display. At the right hand of the
column, the current setpoint (B) is shown, i.e. the setpoint acting
as reference for the PI controller. If no kind of external setpoint
influence has been selected, the two values will be identical. The
current measured value (discharge pressure) is shown as the
grey part of the column (C). See sections 11.7.5 External setpoint
influence (4.1.3) and 11.7.6 Setting of influence function (4.1.3.2).
Below the display is a menu line for setting of setpoint 1 and
selection of operating mode, including the operating modes
Normal and Stop. It is possible to select further settings: system
operating mode, control mode, setpoints for closed and open loop
as well as individual pump control.
Setting range
Setpoint:
Closed-loop control: Measuring range of the primary sensor
Open-loop control: 0-100 %
Setting via control panel
Setpoint:
1. Mark the Operation menu with
2. Mark Setpoint 1 with
.
3. Save with .
Operating mode:
1. Mark the Operation menu with
2. Mark operating mode Normal or Stop with
Save with .
Further settings:
1. Mark the Operation menu with
2. Mark Further settings with
3. Select one of the settings below with
:
• System operating mode (see section 11.5.2).
• Control mode (see section 11.5.3).
• Setpoints (see section 11.5.4).
• Individual pump control (see section 11.5.6).
Factory setting
The setpoint is a value suitable for the system in question.
Thefactory setting may have been changed in the start-up menu.
18
B
.
or . Set the value with
.
or .
.
or , and press
or , and press

11.5.2 System operating mode (2.1.1)

Fig. 16 System operating mode
Description
Control MPC can be set to six different operating modes. Normal
is the typical setting. See section 11.4.3 Operating mode (1.2.1).
The performance of the operating modes Max., Min., User-
defined and Emergency run can be set in the Settings menu.
In the display shown, it is possible to go directly to the Settings
menu in order to set the pump performance or the setpoint.
Setting range
It is possible to select the operating modes Normal, Max., Min.,
User-defined, Stop and Emergency run.
Setting via control panel
1. Mark the Operation menu with
2. Mark Further settings with
3. Mark System operating mode with
.
4. Select the desired operating mode by marking one of the lines
with check boxes with
5. In order to set the performance in min., max., user-defined
duty or emergency run, mark the desired line at the bottom of
the display, and press
See sections 11.7.33 Min., max. and user-defined duty
(4.3.14) and 11.7.25 Emergency run (4.3.5).
Factory setting
Normal.
or
.
.
or , and press
or , and press
or , and press .
.
.