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22.11 – 5806712_07
13 ELECTRICAL WIRING
For the installation requirements refer only to the wiring diagram supplied with the unit. The wiring diagram along with the manuals must be kept in
good condition and always available for any future servicing on the unit.
THE CABLE GLANDS ARE NOT SUPPLIED WITH THE UNIT
This equipment is compliant with IEC 61000-3-12 provided that the short circuit power S
sc
is greater than or equal to R
sce
x S
equ
in the point of interface between the user's
power supply and the public network.
The equipment installer or user is responsible for making sure, together with the distribution network operator if necessary, that the equipment is connected only to a power
supply with a short-circuit power S
sc
that is higher than or equal to R
sce
x S
equ
.
with:
— S
equ
= 400 [V] x 1.73 x I_rated [A]
— I_rated = machine input current under rated conditions [A]
— R
sce
= Machine "short circuit ratio".
The units are completely wired at the factory and only require connection to the electric power supply mains, downstream from a unit switch, according to that envisioned by
the Standards in force on this subject in the country of installation.
It s also advised to check that:
— The electrical mains features are suitable for the absorption values indicated in the electrical data table, also taking into consideration any other machines functioning at
the same time;
— The unit is only powered when installation has been completed (hydraulic and electric);
— Respect the connection indications of the phase, and earth wires;
— The power supply line must have a relevant protection mounted upstream against short circuits and dispersions to earth, which isolates the system with respect to other
utilities;
— The voltage must be within a tolerance of ± 10% of the nominal power supply voltage of the machine (for unbalanced three-phase unit max 3% between the phases). If
these parameters are not respected, contact the energy supplier;
— For electric connections, use the cables with double isolation according to the Standards in force on this subject in the different countries.
The following is mandatory
— The use of an omnipolar magnet circuit breaker switch, in compliance with the current Standards (contact opening at least 3 mm), with suitable cut-off power and differ-
ential protection on the basis of the electric data table shown below, installed as near as possible to the appliance;
— To make an effective earth connection. The manufacturer cannot be considered responsible for any damage caused by the lack of or ineffective appliance earth connection;
— For units with three-phase power supply, check the correct connection of the phases.
All electrical operations:
must be carried out by personnel who fulfil the necessary legal requirements and who have been trained and informed on the risks corre-
lated with those operations.
— The characteristics of the electrical lines and related components must be established by personnel authorised to design electric installations, following international
regulations and the national regulations of the country in which the unit is installed, in compliance with the legislative regulations in force at the moment of installation;
— it is mandatory to check the machine sealing before connecting the electrical wiring. The machine must only be powered once the hydraulic and electric operations are
completed;
— Electrical connections must be placed through the prepared sections (see figure .X) using suitable cable glands with a minimum IP67 grade o higher;
— If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
POWER CONNECTION
The units are completely wired at the factory and only require connection to the electric power supply mains, downstream from a unit switch, according to that envisioned by
the Standards in force on this subject in the country of installation.
It s also advised to check that:
— The electrical mains features are suitable for the absorption values indicated in the electrical data table, also taking into consideration any other machines functioning at
the same time.
— The unit is only powered when installation has been completed (hydraulic and electric).
— Respect the connection indications of the phase, and earth wires.
— The power supply line must have a relevant protection mounted upstream against short circuits and dispersions to earth, which isolates the system with respect to other
utilities.
— The voltage must be within a tolerance of ±10% of the nominal power supply voltage of the machine (for unbalanced three-phase unit max 3% between the phases).
Whenever these parameters are not respected, contact the electric energy public body.
— For electric connections, use the cables with double isolation according to the Standards in force on this subject in the different countries.
È obbligatorio:
— The use of an omnipolar magnet circuit breaker switch, in compliance with the current Standards (contact opening at least 0,12 in), with suitable cut-off power and differ-
ential protection on the basis of the electric data table shown below, installed as near as possible to the appliance.
— To make an effective earth connection. The manufacturer cannot be considered responsible for any damage caused by the lack of or ineffective appliance earth connection.
— For units with three-phase power supply, check the correct connection of the phases.
All the electrical operations must be carried out by personnel in possession of the necessary qualifications by law, suitably trained and informed on the
risks related to these operations.
The characteristics of the electrical lines and of the related components must be determined by staff qualified to design electrical systems, in compliance
with the international and national regulations of the place of installation of the unit and in compliance with the regulations in force at the moment of
installation
For the installation requirements refer only to the wiring diagram supplied with the unit. - The wiring diagram along with the manuals must be kept in
good condition and always available for any future servicing on the unit.
