Grundfos CONTROL MPC Installation And Operating Instructions Manual page 42

11.7.29 Analog inputs (4.3.8.1 to 4.3.8.7)
Fig. 70 Analog inputs
Description
In the displays 4.3.8.1 to 4.3.8.7, analog inputs can be set.
Each display is divided into three parts:
• Setting of input signal, for instance 4-20 mA
• Measured input value, for instance discharge pressure
• Measuring range of the sensor/signal transmitter, for instance
0-16 bar.
Setting range
It is possible to set the following parameters in each display:
• Not used
• Range of input signal, 0-20 mA, 4-20 mA, 0-10 V
• Measured input value
• Sensor range.
Setting via control panel
1. Mark the Settings menu with
2. Mark Secondary functions with
3. Mark Analog inputs with
4. Select the analog input with
5. Mark the setting of the analog input with
activate it with .
The activation is indicated by a check mark in the box.
If an analog input is deactivated, the display will
only show the top part, i.e. the setting of the
analog input.
If the input is activated, the middle part,
Note "Measured input value", will be shown. This
makes it possible to relate a function to the
analog input in another display. When the analog
input has been related to a function, CU 351 will
return to the display for setting of analog inputs.
Factory setting
Pressure boosting
Analog input Function
AI1 (CU 351) [51] Discharge pressure
Heating and cooling
Analog input Function
AI1 (CU 351) [51] These are selected in the start-up wizard
42
.
or , and press
or , and press .
or , and press .
or , and
11.7.30 Analog inputs and measured value (4.3.8.1.1 to
4.3.8.7.1)
Fig. 71 Analog inputs and measured value
Description
In the display Analog inputs and measured value (4.3.8.1.1 to
4.3.8.7.1), a function can be related to the individual analog
inputs.
Setting range
It is possible to select one function per analog input. For further
details, see section 12. Measuring parameters.
• Not used
• 0-100 % signal
• Inlet pressure
• Discharge pressure
• External pressure
• Differential pressure, pump
• Flow rate
• Tank level, discharge side
.
• Tank level, suction side
• System pressure
• Differential pressure, external
• Tank precharge pressure
• Differential pressure, inlet
• Differential pressure, outlet
• Return pipe temperature, external
• Flow pipe temperature
• Return pipe temperature
• Differential temperature
• Ambient temperature
• Power, pump 1 to 6
• Power, VFD.
Setting via control panel
1. Mark the Settings menu with
2. Mark Secondary functions with
3. Mark Analog inputs with
4. Select the analog input with
5. Set the range of the analog input with
.
The activation is indicated by a check mark.
6. Mark Measured input value with
Now the display 4.3.8.1.1 appears.
7. Select the input with
8. Press to return to display 4.3.8.1.
9. Set the minimum sensor value with
.
10. Set the maximum sensor value with
with .
.
or , and press
or , and press .
or , and press
or , and press
or , and press
or , and press .
or , and save with
or , and save
.
.
.