Grundfos E-pumps

Grundfos E-pumps
3
Setting up the pump
Factory setting
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 pump performance
curve.
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).
Setpoint setting
Set the desired setpoint by pressing or .
The light fields on the control panel will indicate the
setpoint set.
Pump in control mode "Controlled" (pressure
control)
Example
Figure 27 shows that the light fields 5 and 6 are yellow,
indicating a desired setpoint of 3 bar (43.5 psi).
The setting range is equal to the sensor measuring
range (see sensor nameplate).
6
[bar]
E-pumps
Setting via the control panel
The pump control panel (fig. 25 or 26) 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).
Light fields
Buttons
3
0
Fig. 27 Setpoint set to 3 bar (pressure control)
Pump in control mode "Uncontrolled"
TM00 7743 0904
Example
In control mode "Uncontrolled", the pump performance
is set within the range from min. to max. curve.
See fig. 28.
Indicator lights
TM00 7600 0304
H
Fig. 25 Control panel, single-phase pumps, .5 Hp - 1.5 Hp
(0.37 kW - 1.1 kW)
Light fields
Buttons
Q
TM00 7746 1304
Fig. 28 Pump performance setting, control mode
"Uncontrolled"
Indicator lights
TM02 8513 0304
Fig. 26 Control panel, three-phase pumps, 1 Hp -30 Hp
(0.75 - 22 kW)
25