Setting The Product; Factory Settings; Setting By Means Of Control Panel; Setting Of Operating Mode - Grundfos CRE Instructions Manual

6. Setting the product

6.1 Factory settings

6.1.1 Pumps without factory-fitted sensor
The pumps have been factory-set to control mode uncontrolled. The
setpoint value corresponds to 100 % of the maximum pump
performance (see data sheet for the pump).
6.1.2 Pumps with pressure sensor
The pumps have been factory-set to control mode controlled. The
setpoint value corresponds to 50 % of the sensor measuring range
(see sensor nameplate).

6.2 Setting by means of control panel

The pump control panel, see the figure below, incorporates the
following buttons and indicator lights:
• Buttons, and , for setpoint setting.
• Light fields, yellow, for indication of setpoint.
• Indicator lights, green (operation) and red (fault).
3
2
Control panel, three-phase pumps, 20-30 hp
Pos. Description
1 Buttons
2 Indicator lights
3 Light fields

6.3 Setting of operating mode

Settings available:
• Normal
• Stop
• Min.
• Max.
Start/stop of pump
Start the pump by continuously pressing
is indicated. This is operating mode Normal.
Stop the pump by continuously pressing
fields are activated and the green indicator light flashes.
Setting to Min.
Press continuously to change to the min. curve of the pump
(bottom light field flashes). When the bottom light field is on, press
for 3 seconds until the light field starts flashing.
To return to uncontrolled or controlled operation, press
continuously until the desired setpoint is indicated.
28
Min. curve duty
Setting to Max.
Press
light field flashes). When the top light field is on, press
seconds until the light field starts flashing.
To return to uncontrolled or controlled operation, press
continuously until the desired setpoint is indicated.
1
Max. curve duty

6.4 Setpoint setting

Set the desired setpoint by pressing the button
The light fields on the control panel will indicate the setpoint set.
See examples in the sections on pump in control mode controlled
(pressure control) and pump in control mode uncontrolled.
Related information
6.4.1 Pump in control mode controlled (pressure control)
6.4.2 Pump in control mode uncontrolled
6.4.1 Pump in control mode controlled (pressure control)
Example
The figure below shows that the light fields 5 and 6 are activated,
indicating a desired setpoint of 3 bar. The setting range is equal to
the sensor measuring range (see sensor nameplate).
until the desired setpoint
until none of the light
Setpoint set to 3 bar, pressure control
H
Q
continuously to change to the max. curve of the pump (top
H
Q
[bar]
6
3
0
for 3
or .