Italtecnica Sirio Manuel D'instructions page 7

- SIRIO ENTRY (single-phase pump):
Sirio Entry can only be fitted on single-phase 230Vac electric pumps, already provided with capacitor.
When wiring up the device it is necessary to check the terminals inside the pump to ensure they are connected as prescribed by
the manufacturer of the pump. The figure below shows a typical example of connection:
- SIRIO (three-phase pump):
Sirio can be fitted on three-phase pumps with a 230Vac power supply therefore a delta configuration.
When used with a submerged pump the motor must be ordered from the manufacturer with a factory-installed delta connector.
When installing external pumps, at the time of electrical connections, ensure that the terminals inside the electrical enclosure of the
motor are connected as shown in the following figure:
AUXILIARY CONTACT CONNECTOR
WARNING: The remote connector is insulated from the network power by a "main" type insulation (basic insulation
according to EN 60730-1). Any circuit which will be connected to this terminal, will acquire the same insulation grade
from the network power. For this reason the connection must be carried out using a cable type that can guarantee the
additional insulation.
SETTING OF "AUXILIARY CONTACT" PARAMETER = "1" –Exchange function in the pressurisation units.
When the "AUXILIARY CONTACT" parameter is set on "1" the Sirio is set to work
independently (single system) or to dialogue with another partner device as part of a twin
pump pressurisation unit, depending on whether the connection cable is used. If the device
is set to work independently no connection is required. On the other hand, if the Sirio is
connected to another unit to create a pressurisation group, follow the wiring diagram
shown here; for further information on the operation as part of twin pump pressurisation
units see the "PRESSURISATION UNITS" section in the appendix.
MOTOR
1X230Vac
MOTOR
3X220Vac
Sirio is fitted with a special connector for an auxiliary contact so that additional
functions can be exploited by interfacing the device with external equipment. The
function of the auxiliary contact depends on the setting of the "Auxiliary Contact"
parameter described in the paragraph on programming. The three operational modes,
relevant functions and connection methods are described below.
AUXILIARY CONTACT
CONNECTOR
8
EARTH
EARTH