Relay Outputs; Setpoint Influence - Grundfos MAGNA3 Series Installation And Operating Instructions Manual

13.6 Relay outputs

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Home > Settings > Relay outputs
Relay outputs
Relay output 1
•
Relay output 2.
•
The relay outputs can be set to the following:
Not active
•
Ready
•
Alarm
•
Operation.
•
The pump incorporates two signal relays, terminals 1, 2 and 3, for
a potential-free alarm signal, ready signal and operating signal.
For further information, see section 5.5.1 Relay outputs.
Set the function of the signal relays, alarm signal (factory setting),
ready signal and operating signal, on the pump control panel.
The output, terminals 1, 2 and 3, is electrically separated from the
rest of the controller.
The signal relay is operated as follows:
Not active
•
The signal relay is deactivated.
Ready
•
The signal relay is active when the pump is running or has
been set to stop, but is ready to run.
Alarm
•
The signal relay is activated together with the red indicator
light on the pump.
Operation
•
The signal relay is activated together with the green indicator
light on the pump.

13.7 Setpoint influence

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Home > Settings > Setpoint influence
Setpoint influence
External setpoint function
•
Temperature influence.
•
13.7.1 External setpoint function
Range
4-20 mA [0-100 %]
0-10 V [0-100 %]
Control
0-20 % (e.g. 0-2 V)
20-100 % (e.g. 2-10 V)
The external setpoint function is an external 0-10 V or 4-20 mA
signal that will control the pump speed in a range from 0 to 100 %
in a linear function. See fig. 37.
External setpoint function
Before the "
enabled, the analog input must be set to "
Note
Note
setpoint influence
" via the "
See section 5.6 Analog input for external sensor.
rpm
Max.
Min.
0 2
Fig. 37 External setpoint function, 0-10 V
Setpoint = Min.
Setpoint = Min. ↔ setpoint
" can be
External
Assist
" menu.
V
10
29