Temporary start-up of electric pump
When the buttons MODE and "-" are pressed simultaneously, the pump is started up at the frequency FP and this
operating status remains while the buttons are pressed.
When the pump ON or pump OFF command is activated, the relative notification is shown on display.
Pump start-up
When the buttons MODE, "-" and "+" are pressed simultaneously for 2 seconds, the pump is started up at the
frequency FP. This operating status remains until SET is pressed. When SET is pressed again, the user exits the
manual mode menu. When the pump ON or pump OFF command is activated, the relative notification is shown on
display.
When the pump is controlled in manual mode, if no flow is detected for a time of 2 min, the dry running operation
intervenes and the pump is switched off, indicating the error BL on the display.
Inversion of direction of rotation
When the buttons SET and - are pressed simultaneously for 2 seconds, the pump changes direction of rotation. The
function is also enabled when the motor is running. Not available on type M/M inverters.
6.4.1 FP: Test frequency setting
This displays the test frequency in [Hz] and enables modification by means of the buttons "+" and "-".
The default value is FN – 20% and can be set between FL and FS.
6.4.2 VP: Display of pressure
System pressure measured in [bar] or [psi] depending on measurement system selected.
6.4.3 C1: Display of phase current
Phase current of electric pump in [A].
If the maximum allowed current is exceeded, the current value shown on the display will start to blink between normal
display and reverse. This representation indicates a pre-alarm condition which foresees the probable tripping of the
overload protection on the motor. In this case it is necessary to check the correct setting of the maximum current of
the RC pump, see paragraph 6.5.1 and the electric pump connections.
6.4.4 PO: Display of the power delivered
Displays the power absorbed by the power supply line in [kW].
6.4.5 RT: Setting the direction of rotation
This parameter is present only on type M/T and T/T inverters.
If the direction of pump rotation is incorrect, it can be inverted by changing this parameter. In this menu item, use
buttons + and – to activate and display the two possible states "0" or "1". The phase sequence is shown in the
comment line on display. The function is also enabled when the motor is running.
If it is not possible to see the direction of motor rotation after entering manual mode, proceed as follows:
Start up the pump at frequency FP (pressing MODE and + or MODE + -)
o
Turn on a utility and check the pressure
o
Without changing collection, modify parameter RT and the pressure again.
o
The correct RT parameter is that which generates a higher pressure.
o
6.4.6 VF: Flow display
See paragraph 6.2.1
6.5 Installer menu
From the main menu, press and hold "MODE" & "SET" & "-" simultaneously until "RC" appears on display (or use the
buttons + or – in the selection menu). This menu enables the display and modification of various configuration
parameters. The MODE button enables the user to scroll through the menu pages, while buttons + and – enable
respectively to increase and decrease the value of the parameter concerned. To exit the current menu and return to
the main menu, press SET.
6.5.1 RC: Electric pump rated current setting
Rated current absorbed by the electropump in Ampere (A).
Insert the absorption declared by the manufacturer on the data plate of the electropump.
When the value is modified, the parameter symbol starts to blink, indicating that the value has changed. The
modification will be effective only when [SET] or [MODE] is pressed or when the menu is changed. If you do not press
any key after having changed the parameter and leave the page by timeout, the change will not be effective.
In the case of type M/T and T/T inverters, pay attention to the type of connection used for the windings.
If the parameter entered is lower than the correct value, the error "OC" is displayed during operation as soon
as the set current exceeds the current set value for a set time interval.
If the parameter entered is higher than the correct value, the current sensitivity protection will trip
inadvertently over the motor safety threshold.
ENGLISH
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