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11.1.2 Pump in constant-curve control mode
In constant-curve control mode, the pump performance will lie
between the maximum and minimum curve of the pump. See fig.
Fig. 28
Pump in constant-curve control mode
Setting to maximum curve
• Press
continuously to change over to the maximum curve
of the pump. The top light field flashes. When the top light field
is on, press
for 3 seconds until the light field starts
flashing.
• To change back, press
continuously until the desired
setpoint is indicated.
Example
Pump set to maximum curve.
Figure
shows that the top light field is flashing, indicating
maximum curve.
Fig. 29
Maximum curve duty
Setting to minimum curve:
• Press
continuously to change over to the minimum 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 change back, press
continuously until the desired
setpoint is indicated.
Example
Pump set to minimum curve.
Figure
shows that the bottom light field is flashing, indicating
minimum curve.
Fig. 30
Minimum curve duty
11.1.3 Start/stop of pump
Start the pump by pressing
or by continuously pressing
until the desired setpoint is indicated.
Stop the pump by pressing
. When the pump is stopped, the
"Stop" text next to the button is on. The pump can also be
stopped by continuously pressing
until none of the light fields
are on.
You can also stop the pump with Grundfos GO or via a digital
input set to "External stop". See section
11.1.4 Resetting of fault indications
Reset a fault indication in one of the following ways:
• Via the digital input if it has been set to "Alarm resetting".
• Briefly press
or
on the pump. This will not change the
setting of the pump.
A fault indication cannot be reset by pressing
or
if the
buttons have been locked.
• Switch off the power supply until the indicator lights are off.
• Switch the external start/stop input off and then on again.
• With Grundfos GO.
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Note
If you have stopped the pump by pressing
and
the "Stop" text on the control panel is illuminated, you
give it free to operation by pressing
again.
If you have stopped the pump by pressing
, you
restart it by pressing
or by using Grundfos GO.
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