Grundfos CUE Series Installation And Operating Instructions Manual page 18

10.3.10 Control mode (8/16)
Select the desired control mode. See section 10.7.1.
• Open loop
• Constant pressure
• Constant differential pressure
• Proportional differential pressure
• Constant flow rate
• Constant temperature
• Constant level
• Constant other value.
The possible settings and the factory setting depend on the pump
family.
The CUE will give an alarm if the control mode selected requires
a sensor and no sensor has been installed. To continue the
setting without a sensor, select "Open loop", and proceed. When
a sensor has been connected, set the sensor and control mode in
menu INSTALLATION.
10.3.11 Rated flow rate (8A/16)
This display appears only if the control mode selected is
proportional differential pressure.
Set the rated flow rate according to the pump nameplate:
3
• 1-6550 m /h
10.3.12 Rated head (8B/16)
This display only appears if the control mode selected is
proportional differential pressure.
Set the rated head according to the pump nameplate:
• 1-999 m
10.3.13 Sensor connected to terminal 54 (9/16)
Set the measuring range of the connected sensor with a signal
range of 4-20 mA. The measuring range depends on the control
mode selected:
Proportional differential pressure:
• 0-0.6 bar
• 0-1 bar
• 0-1.6 bar
• 0-2.5 bar
• 0-4 bar
• 0-6 bar
• 0-10 bar
• Other.
18
Constant differential pressure:
• 0-0.6 bar
• 0-1.6 bar
• 0-2.5 bar
• 0-4 bar
• 0-6 bar
• 0-10 bar
• Other.
Constant pressure:
• 0-2.5 bar
• 0-4 bar
• 0-6 bar
• 0-10 bar
• 0-16 bar
• 0-25 bar
• Other.
Constant temperature:
• –25 to 25 °C
• 0 to 25 °C
• 50 to 100 °C
• 0 to 150 °C
• Other.
If the control mode selected is "Constant other value", or if the
measuring range selected is "Other", the sensor must be set
according to the next section, display 9A/16.
10.3.14 Another sensor connected to terminal 54 (9A/16)
This display only appears when the control mode "Constant other
value" or the measuring range "Other" has been selected in
display 9/16.
• Sensor output signal:
0-20 mA
4-20 mA.
• Unit of measurement of sensor:
bar, mbar, m, kPa, psi, ft, m
3
gal/h, gal/m, gal/s, ft /min, ft
• Sensor measuring range.
The measuring range depends on the sensor connected and the
measuring unit selected.
10.3.15 Priming and venting (10/16)
See the installation and operating instructions of the pump.
The general setting of the CUE is now completed, and the start-
up guide is ready for setting the direction of rotation:
• Press OK to go on to automatic or manual setting of the
direction of rotation.
10.3.16 Automatic setting of the direction of rotation (11/16)
Warning
During the test, the pump will run for a short
time. Ensure no personnel or equipment is in
danger!
Before setting the direction of rotation, the CUE
will make an automatic motor adaptation of
Note
certain pump types. This will take a few minutes.
The adaptation is carried out during standstill.
Constant flow rate:
3
• 1-5 m /h
3
• 2-10 m /h
3
• 6-30 m /h
3
• 15-75 m /h
• Other.
Constant level:
• 0-0.1 bar
• 0-1 bar
• 0-2.5 bar
• 0-6 bar
• 0-10 bar
• Other.
3 3 3
/h, m /min, m /s, l/h, l/min, l/s,
3
/s,°C, °F, %.