Description Of The Parameters And Screen Pages - Italtecnica Sirio Instrucciones De Uso

DESCRIPTION OF THE PARAMETERS AND SCREEN PAGES
MAIN MENU:
These screen pages are accessible when the device is on.
1.0 BAR
40Hz
1.0 BAR
Stand-by
V= 230V
I= 5.0A
Ti= 35° C
Ta= 35° C
Language
EN
INSTALLER PARAMETERS:
These parameters can be found on hidden pages and usually they should only be changed in the installation phase. To access these pages
switch the device to Stand-by and keep the "+" and "-"buttons pressed down together for 5 seconds. Once you have entered the hidden menu,
use the"<<" and ">>" buttons to scroll the pages and the "+" and "-" buttons to change the parameters. To return to the main page press the
button in the centre. Some parameters may not be displayed if the relative function is not enabled.
Pmax
3.0 BAR
through it falls below the minimum values (approx. 2 litres/minute) irrespective of the pressure reached in the system.
Dp.start
0.5 BAR
minimum differential settable between Pmax and Pmin is 0.3 Bar, with the recommended value being at least 0.5 Bar.
P.dr.ru.
0.5 BAR
P.Limit
9.0 BAR
Pmax2
9.0
BAR
Dp.stop
0.5 BAR
IT
Main screen page: when Sirio is operating correctly, the first line of the display shows the instantaneous
pressure detected by the system; the second line shows the current frequency of the motor. From here, it is
possible to scroll through the main menu using the arrows, or put the system in "Stand-by" by pressing the
central "on-off" key
When Sirio is in stand-by, the pump will not start up even if the pressure drops below the "Pmin" value set. To
exit stand-by, press the central button again. By holding down the "+" button, the pump is brought up to the
maximum operating speed, overriding the dry running protection (use this function to fill the pump on initial
start-up).
Voltage and current screen: on this page of the menu it is possible to view the input voltage to the inverter and
the current absorbed by the motor. The value of the output current to the motor may differ from the value of the
input current as the inverter modulates both frequency and voltage.
Temperature screen: this displays the ambient temperatures inside the inverter and the IGBT power module.
The values of these temperatures contribute to the intelligent power management which limits the value of the
maximum frequency of the motor when the pre-alarm thresholds are reached.
Language: The language used for the menus and the alarm messages can be selected by the user. Use the + and
– buttons to alter the parameter setting.
Pmax: this parameter enables entry of the set-point value of the device. It is a constant pressure value required
by the system (maximum pressure). During its operation Sirio regulates the revs of the electric pump to adapt
them to the actual required flow-rate, therefore maintaining the constant pressure of the system. When it is
necessary to set the Pmax to a value higher than the maximum pump head, motor shut down on valve closure is
only guaranteed if the flow switch is activated, as Sirio switches off the pump when the flow of water passing
Delta P start-up: this parameter sets the delta negative of pressure compared to Pmax for the start-up of the
pump. On opening of any type of utility, the pump will not start-up until the system pressure has fallen below
Pmax by a value equal to the delta set in this parameter. After the motor is started up, the operating rotation
speed is controlled to maintain the pressure value as close as possible to that set in the parameter Pmax. The
Dry-running pressure: this parameter only affects operation with the flow switch deactivated. Define the
minimum pressure value below which, with the motor at maximum frequency, the protection against dry-
running triggers.
Pressure limit: this parameter sets the threshold for the overpressure protection intervention.
The overpressure protection intervention stops the inverter until the user resets it.
Pmax2: this parameter enables entry of the secondary set-point of the device. When the auxiliary contact (or the
auxiliary I/O board input) is closed externally, the pressure value set in Pmax2 becomes the new set-point,
according to which Sirio regulates the revs of the electric pump.
Delta P stop: this parameter sets the positive pressure delta compared to Pmax for immediate shutdown of the
pump. During normal operation, when the valves close, the pump stops after a time set in the parameter "stop
delay". In any case, if the system pressure exceeds the Pmax value of a delta greater than that set in this
parameter, the pump will stop immediately to avoid overpressure which may damage the system.
EN F DE
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E RU PT GR CZ SK NL RO