Install Instructions

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5.7 Electrical connection for external sensor
Fig. 23 Example electrical connections for external sensor
* Common ground for both pressure and temperature signal.
* Power supply (screened cable): SELV or PELV.
5.8 Priority of settings
The external forced-control signals will influence the settings
available on the pump control panel or with Grundfos GO
Remote. However, the pump can always be set to max. curve
duty or to stop on the pump control panel or with Grundfos GO
Remote.
If two or more functions are enabled at the same time, the pump
will operate according to the setting with the highest priority.
The priority of the settings is as shown in the table below.
Example: If the pump has been forced to stop via an external
signal, the pump control panel or Grundfos GO Remote can only
set the pump to max. curve.
As illustrated in the table, the pump does not react to external
signals (max. curve and min. curve) when it is controlled via bus.
For further details, please contact Grundfos.
TM04 7156 1610
PIN 1 2 3 4
Wire color Brown Grey Blue Black
Output
4 to 20 mA
+ not used - not used
Output
2 x 0 to 10 V
+
Pressure
signal
-*
Temperature
signal
1
3
4
2
Priority
Possible settings
Pump control
panel or
Grundfos GO
Remote
External
signals
Bus signal
1 Stop
2 Max. curve
3Stop
4Stop
5Max. curve
6Min. curve
7Start
8Max. curve
9Min. curve
10 Min. curve
11 Start