Setpoint Setting - Grundfos CRE Instrucciones De Instalación Y Operación

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