Italtecnica Nettuno 3P-13A Manuel D'instruction page 40

REGULATION OF STOP FREQUENCY (AUTOSET FUNCTION)
After setting up the system for normal conditions of use (pump fully primed, no air present, correct direction of
rotation), if the pump does not stop automatically on closure of the utilities, the autoset function may be started up to
automatically calculate the stop frequency value.
To start the autoset procedure:
2.5 BAR
Stand-by
AUTOSET
delivery
AUTOSET pending
0.0BAR 30 Hz
AUTOSET Complete
Correctly!
AUTOSET not
Completed-Error
"Stop frequency" manually as explained in the next section.
MAIN MENU STRUCTURE
The main menu shows the operational values of the system: pressure, current frequency of
the motor, input voltage, output current of the motor and internal temperature of the inverter.
It is also possible to select the language.
2.5 BAR 0 Hz
Stand-by
1) switch the inverter to stand-by by pressing the central key
0 Hz
2) open one of the valves to completely discharge all pressure from the
system
press and hold the "Autoset" key for 5 seconds
3)
Close
4) close each valve on delivery and press the central key to start the
autoset function
5)
wait until the device starts the motor and attempts to calculate the
correct value of the stop frequency on the basis of the characteristics
of the pump and the set operating pressure
6) if the outcome is positive, the confirmation screen is
displayed. Press the central key again to return to the main
operation screen
7) if the autoset procedure fails, when the device is unable to determine
the correct stop frequency, the relative error screen is displayed.
Attempt to repeat the procedure after verifying correct operation of
the pump and correct entry of the set point value. If the outcome is
still unsuccessful, adjust the parameters "Minimum frequency" and
Vin = 380V
Ta=30° C
Tm=24° C
U(A) V(A)
0.0 0.0
40
Language
W(A)
English
0.0