Grundfos MAGNA3 Installatie- En Bedieningsinstructies pagina 19

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Beschikbare talen

External forced max. or min. curve

The pump can be forced to operate on the max. or min. curve via

the digital input.

Select the function of the digital input on the pump control panel

or with the Grundfos GO Remote.

4.5.3 Analog input

See fig. 10, pos. 3.

The analog input can be used for the connection of an external

sensor for measuring temperature, pressure, flow or other

parameter. See fig. 15.

It is possible to use sensor types with 0-10 V or 4-20 mA signal.

The analog input can also be used for an external signal for the

control from a BMS system or similar control system. See fig. 16.

When the input is used for the heat energy meter, a

temperature sensor must be installed in the return pipe.

If the pump is installed in the return pipe of the system, the

sensor must be installed in the flow pipe.

If the constant-temperature control mode has been enabled

and the pump is installed in the flow pipe of the system, the

sensor must be installed in the return pipe.

If the pump is installed in the return pipe of the system, the

built-in temperature sensor can be used.

The selection of sensor type (0-10 V or 4-20 mA) can be changed

on the pump control panel or with the Grundfos GO Remote.

Fig. 13 Analog input for external sensor, 0-10 V

Fig. 14 Analog input for external sensor, 4-20 mA

Fig. 15 Examples of external sensors

Fig. 16 Examples of external signal for the control via

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