Operation (2) - Grundfos Control Mpc Montage- Und Betriebsanleitung

8.3.10 Pump 1-6, Pilot pump (1.3 - 1.10)
Pump 1
Description
The display shows the operational state of the individual pumps.
The displays for the pilot pump are only shown if such
pumps are installed.
The pumps can have different operating modes:
• Auto
Together with the other pumps in automatic operation, the pump
is controlled by the PI controller which ensures that the system
delivers the required performance.
• Manual
The pump is not controlled by the PI controller. In manual operation,
the pump has one of the following operating modes:
• Max.: The pump runs at a set maximum speed. This operating
mode can only be selected for variable-speed pumps.
• Normal: The pump runs at a set speed.
• Min.: The pump runs at a set minimum speed. This operating
mode can only be selected for variable-speed pumps.
• Stop: The pump has been forced to stop.
Besides information about the operating mode, you can read
various parameters in the status display, such as these:
• Actual operating mode
• Control source
• Speed (only 0 or 100 % are shown for mains-operated pumps)
• Power (only MPC-E/-EC)
• Energy consumption (only MPC-E/-EC)
• Hours (Operating hours)
• Temperature.
22

8.4 Operation (2)

In this menu, you can set the basic parameters, such as setpoint,
operating mode, control mode and individual pump control.
Related information
8.4.2 System operating mode (2.1.1)
8.4.3 Control mode (2.1.2)
8.4.4 Alternative setpoints (2.1.3)
8.4.6 Pump 1-6 (2.1.4.1 - 2.1.4.6)
8.6.5 External setpoint influence (4.1.3)
8.6.6 Setting of influence function (4.1.3.2)
8.4.1 Operation (2)
A
C
Operation
Description
At the left hand of the column, you can see the selected setpoint
1 (A), that is the value set in the display. At the right hand
of the column, you can see the actual setpoint (B), that is 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 measured value (outlet pressure) is shown as
the grey part of the column (C). See sections External setpoint
influence (4.1.3) and 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. You can select further settings: System operating
mode, Control mode, Alternative setpoints and Individual pump
control.
Setting range
Setpoint:
Closed-loop control: Measuring range of the primary sensor
Open-loop control: 0-100 %
Setting via the operating panel
Setpoint
• Operation > Set setpoint 1, open loop / Set setpoint 1,
closed loop.
Set the value.
Operating mode
• Operation
Select: Normal or Stop.
B