Italtecnica Sirio Instrucciones De Uso página 20

 ELECTRIC PUMP CONNECTION
Before carrying out the electrical connection, is necessary to properly prepare the cables with special crimp terminals. Connect the two
power supply wires to the green bi-polar terminal on the pump motor, marked with the word "MOTOR"; then connect the earthing cable to
one end of the double earth terminal, using special eyelet terminals. The crimping of the terminals must be carried out by specialised
personnel, using proper pliers.
The device is fitted with an output short circuit protection.
The recommended cable section is 1.5 mm
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cable section of 2.5 mm . The type of electrical cable must correspond to the conditions of use (use in domestic rooms, dry or wet, for
installation indoors or outdoors).
Where an excessive cable length (over 80 metres) is used, it is recommended to insert a dV/dT filter to limit peak current voltage and
safeguard the durability of the motor, particularly the windings.
Also observe the installation limits as declared by the manufacturer of the electric pump connected to Sirio
- SIRIO ENTRY AND SIRIO ENTRY XP (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.
IT
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for cable lengths up to 30 metres; for lengths greater than 30 metres it is recommended to use a
1X230Vac
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
EN F DE
EARTH
MOTOR
EARTH
MOTOR
3X220Vac
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