Grundfos CU 301 Instrucciones De Instalación Y Funcionamiento página 19

5.3 Settings
The "Settings" menu in Grundfos GO Remote for CU
301 offers the possibility of setting operating
parameters.
5.3.1 Operating mode
Select one of the following operating modes:
• Max.
Pump operation is set to maximum speed,
regardless of the setpoint. The maximum speed is
set in the display Maximum
-1
value is 10,700 min ).
• Normal
Normal operating mode, meaning that pump
operation is based on the setpoint set in display
Setpoint.
Examples: Speed set in the display
sensor control.
• Min.
Pump operation is set to minimum speed, 3000
-1
min , regardless of the setpoint.
• Stop
The pump stops.
Related information
5.3.8 Maximum speed
5.3.2 Setpoint
5.3.2 Setpoint
5.3.2 Setpoint
Set the desired pressure in this display.
Setting range unit:
• 2.0 - 5.0 bar, 0.5 bar intervals
• 40-100 psi, 10 psi intervals.
Relation to other displays
The setting in the display Setpoint
the "Max." and "Min." settings in the display
mode.
Factory setting
3.0 bar (50 psi).
Related information
5.3.1 Operating mode
5.3.1 Operating mode
5.3.3 Analog input 1
Make the following settings according to sensor type:
• Sensor output signal: "-" (not active), 0-20 mA,
4-20 mA, 0-10 V, 2-10 V.
• Setting range unit: bar or psi.
Two CU 301 front covers are available, one for bar
and another for psi. This means that a bar front cover
can be replaced by a psi front cover.
speed. The default
Setpoint or
is overridden by
Operating
The pressure sensor must be replaced by
a sensor measuring the pressure in the
actual measuring unit.
When the front cover is replaced, the display
automatically changes from bar to psi or vice versa.
Relation to other displays:
The measuring unit appearing in the display
sensor 1 will be identical to the measuring unit in the
front cover.
Factory setting
Sensor output signal: 4-20 mA
Setting range unit: bar or psi. Automatically set by the
front cover.
Related information
5.2.2 Value, sensor 1
8. Technical data
5.3.4 Maximum pressure
The set maximum pressure equals the upper possible
setting of the setpoint pressure value.
5.3.5 Automatic restarting
Set the automatic restart time from stop to restart
attempt.
The following settings are available:
• "Enabled"
• "Disabled"
• 0 to 254 minutes.
Factory setting
"5 minutes".
5.3.6 Double restarting time
The following settings are available:
• "Enabled"
• "Disabled".
When you select "Enabled", the restart time set
doubles automatically for every 10 motor stops
caused by an alarm. The time doubles up to a stop
time of 4 hours. After 10 hours of operation without an
alarm, the restart time is automatically set to one of
the following:
• The time set in the "Time" field.
• 5 minutes (factory setting) if no setting was made
in the "Time" field.
Value,
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