17.10.1 Setting two sensors for differential
measurement
In order to measure the difference of a parameter
between two points, set the corresponding sensors as
follow:
Parameter
Analog input
for sensor 1
Analog input for
sensor 2
Pressure,
option 1
Differential
pressure, inlet
Differential
pressure, outlet
Pressure,
option 2
Pressure 1,
external
Pressure 2,
external
Flow Pump flow Flow, external
Temperature Temperature 1 Temperature 2
If you want to use the control mode
"constant differential pressure", you must
choose the function Feedback sensor for
the analog input of both sensors.
17.11 Built-in Grundfos sensor
Pump variant Built-in Grundfos sensor
TPE3, TPE3 D ●
TPE2, TPE2 D -
You can select the function of the built-in sensor in
the Built-in Grundfos sensor menu.
Set the Built-in Grundfos sensor via the Assisted
pump setup menu. See section Assisted pump
setup.
If you perform the setting manually in the advanced
control panel, you must enter the Analog inputs
menu under the Settings menu in order to access the
Built-in Grundfos sensor menu.
If you perform the setting manually via Grundfos GO,
you need to enter the menu for the Built-in Grundfos
sensor under the Settings menu.
Function
You can set the built-in sensor to these functions:
• Grundfos diff.-pressure sensor
- Not active
- Feedback sensor
- Setpoint influence
- Other function.
Factory setting
See section Factory settings.
Related information
17.46 Assisted pump setup
35. Factory settings
17.12
Pt100/1000 inputs
Pump variant Pt100/1000 inputs
TPE3, TPE3 D ●
TPE2, TPE2 D ●
Function
Terminal
3)
Pt100/1000 input 1, setup 17 and 18
Pt100/1000 input 2, setup 18 and 19
3)
See section Connection terminals, advanced functional
module, FM 300.
For some pumps, the built-in temperature sensor is
connected to Pt100/1000 input 1 (terminals 17 and
18).
Set the Pt100/1000 input for a feedback sensor via
the Assisted pump setup menu. See section
Assisted pump setup.
If you want to set a Pt100/1000 input for other
purposes, you can do this manually.
You can set the analog inputs via the Setup, analog
input menu. See section Setup, analog input.
If you perform the manual setting via Grundfos GO,
you need to enter the menu for the Pt100/1000 input
under the Settings menu.
Function
You can set the Pt100/1000 inputs to these functions:
• Not active
• Feedback sensor
• Ext. setpoint infl.
See section External setpoint function
• Other function.
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