Display Of Actual Setpoint; Display Of Operating Mode; Display Of Actual Value; Display Of Actual Speed - Grundfos CRE Installation And Operating Instructions Manual

6.2.1 Display of actual setpoint

Without sensor
Tolerance: ±2 %
This display shows the actual setpoint and the external setpoint in
% of the range from minimum value to the setpoint set, see
section 8. External setpoint signal.

6.2.2 Display of operating mode

This display shows the actual operating mode (Stop, Min., Normal
(duty) or Max.). Furthermore, it shows where this operating mode
was selected (R100, Pump, BUS, External or Stop func.). For
further details about the stop function (Stop func.), see section
6.3.8 Setting of stop function.

6.2.3 Display of actual value

Without sensor
The actually measured value of a connected sensor will appear in
this display.
If no sensor is connected to the pump, "–" will appear in the
display.

6.2.4 Display of actual speed

Tolerance: ±5 %
The actual pump speed will appear in this display.

6.2.5 Display of input power and power consumption

14
With pressure sensor
Tolerance: ±2 %
With pressure sensor
Tolerance: ±10 %
This display shows the actual pump input power from the mains
supply. The power is displayed in W or kW.
The pump power consumption can also be read from this display.
The value of power consumption is an accumulated value
calculated from the pump's birth and it cannot be reset.

6.2.6 Display of operating hours

Tolerance: ±2 %
The value of operating hours is an accumulated value and cannot
be reset.

6.3 Menu INSTALLATION

6.3.1 Selection of control mode

Without sensor
Select one of the following
control modes (see fig. 16):
• Controlled,
• Uncontrolled.
If the pump is connected to a bus (see section
9. Bus signal), it is not possible to select the
Note
control mode via the R100.
The desired performance is set in section 6.1.1 Setpoint setting.

6.3.2 Setting of controller

In this display, the gain (K ) and the integral-action time (T
p
built-in PI controller can be set if the factory setting is not the
optimum setting:
• The gain (K ) is set within the range from 0.1 to 20.
p
• The integral-action time (T ) is set within the range from 0.1 to
i
3600 s. If 3600 s is selected, the controller will function as a
P controller.
Furthermore, it is possible to set the controller to inverse control
(if the setpoint is increased, the speed will be reduced). In the
case of inverse control, the gain (K
from –0.1 to –20.
With pressure sensor
Select one of the following
control modes (see fig. 16):
• Controlled,
• Uncontrolled.
) of the
i
) must be set within the range
p