Grundfos RADIOMODULE 2G4 - Controller (Controller Settings); Operating Range

Function of analog output
Actual speed
0 % 100 %
0 V 10 V
0 mA 20 mA
4 mA 20 mA
Sensor value
Minimum Maximum
0 V 10 V
0 mA 20 mA
4 mA 20 mA
Resulting setpoint
0 % 100 %
0 V 10 V
0 mA 20 mA
4 mA 20 mA
Motor load
0 % 100 %
0 V 10 V
0 mA 20 mA
4 mA 20 mA
Motor current
0 % 100 % 200 %
0 V 5 V 10 V
0 mA 10 mA 20 mA
4 mA 12 mA 20 mA
Limit-exceeded function
Output not active Output active
0 V 10 V
0 mA 20 mA
4 mA 20 mA
6.12 "Controller" ("Controller settings")
The gain (Kp) and integral time (Ti) are preset from the factory. However, if the factory setting is not the optimum setting, you can change the
gain and integral time:
1. Set the gain (Kp) within the range from 0.1 to 20.
2. Set the integral time (Ti) within the range from 0 to 3600 seconds.
If you select 0 seconds, the controller functions as a P-controller.
You can set the controller to inverse control. This means that if you increase the setpoint, the speed is reduced. In the case of
inverse control, set the gain (Kp) within the range from -0.1 to -20.
6.13 "Operating range"
Set the operating range as follows:
1. Set the minimum speed within the range from fixed minimum speed (5) to user-set maximum speed (2).
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