Setpoint Setting - Grundfos CRE Notice D'installation Et De Fonctionnement

6.1.1 Setpoint setting

Set the desired setpoint of the pump by pressing
green light fields on the control panel indicate the setpoint set.
Pump in constant-pressure control mode
The following example applies to a pump in an application where
a pressure sensor gives a feedback to the pump. If the sensor is
retrofitted to the pump, you must set it up manually as the pump
does not automatically register a connected sensor. See section
Analog inputs"
7.5 " .
Figure 31 shows that the light fields 5 and 6 are activated,
indicating a desired setpoint of 116 psi (3 bar) with a sensor
measuring range from 0 to 232 psi (6 bar). The setting range is
equal to the sensor measuring range.
Fig. 31 Setpoint set to 116 psi (3 bar), constant pressure
control
Pump in constant-curve control mode
In constant-curve control mode, the pump performance lies
between the maximum and minimum curve of the pump. See fig.
32.
H
Max.
Min.
Fig. 32 Pump in constant-curve control mode
22
Setting to maximum curve:
• Press
or . The
of the pump (top light field flashes). When the top light field is
on, press
• To go back, press
indicated.
Example: Pump set to maximum curve.
Figure 33
maximum curve.
H
Fig. 33 Maximum curve duty
Setting to minimum curve:
• Press
of the pump (bottom light field flashes). When the bottom light
field is on, press
flashing.
• To go back, press
indicated.
Example: Pump set to minimum curve.
Figure 34
the minimum curve.
H
Fig. 34 Minimum curve duty
Q
continuously to change over to the maximum curve
for 3 seconds until the light field starts flashing.
continuously until the desired setpoint is
shows that the top light field is flashing, indicating the
Q
continuously to change over to the minimum curve
for 3 seconds until the light field starts
continuously until the desired setpoint is
shows that the bottom light field is flashing, indicating
Q