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INDUSTRY
Section 4
Installation
It is a legal requirement to connect the
machine/partly-completed machinery to an
efficient earthing system. No liability is accepted for
failure to comply with this provision; furthermore,
no liability is assumed if the electrical system to
which you are connecting is not made according to
current regulations.
WARNING!
La Nuovagel S.r.l. assumes no liability nor any
warranty obligation in the event of damage to equip-
ment, persons and property due to incorrect installa-
tion and non-compliance with the regulations in
force in the country where the machine is installed.
WARNING!
For safety reasons all electrical connection operations
must be carried out by qualified and authorised person-
nel according to the laws in force in the country where
the machine/partly-completed machinery is installed.
Furthermore, the electrical connections must comply
with the relevant regulations in force in the country
where the machine is installed.
The machine/partly-completed machinery before being
placed on the market undergoes functional and electri-
cal testing.
The unibody machines are supplied with 1P + N + E or
3P + N + E power cable depending on whether it is
single-phase or three-phase; in all other cases the
power cables are not supplied.
Specifically, the following guidelines must be adopted:
The power supply cable must be well stretched, not
rolled up, overlapped or in traction, in a position not
exposed to impact or crushing; it must not be a
hindrance or obstacle to the performance of work
and the passage of persons. Furthermore, it must not
be placed near liquids, water, heat sources, or placed
in contact with sharp, hot or corrosive objects or
elements.
WARNING!
The power supply cable to the mains must not be
damaged, if it is, it must be replaced by qualified
personnel.
Prepare a differential circuit-breaker between the
power supply line and the machine adequately sized
for the usage and for the laws in force in the country
where the machine is installed. Make sure that the
supply voltage is the same as that indicated on the
data plate of the machine/partly-completed machin-
ery. The allowed tolerance is 10% of the rated voltage.
WARNING!
The differential circuit-breaker must be placed in
the immediate vicinity of the machine /part-
ly-completed machinery so that it can be clearly
visible and reached by the technician in case of
maintenance.
Install a main switch in the immediate vicinity of the
machine /partly-completed machinery so that it can
be clearly seen and reached. If the machine is
single-phase, install a double-pole switch with
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4.6.3 ELECTRICAL CONNECTION
contact opening of at least 3mm upstream of the
socket. This switch is mandatory when the load
exceeds 1000W or when the machine is connected
directly to the mains power supply.
In machines with three-phase fans it is necessary to
watch the fans start to check the rotation direction. If
the rotation direction is incorrect, it is necessary to
switch off the machine, disconnect it from the mains
and invert between them two phases of the power
supply line. Once this operation has been completed,
it is possible to reconnect the machine to the power
supply and start it up.
Make the electrical connections as shown in the
wiring diagram.
The cross section of the power supply cable must be
adequate for the power consumption of the machine.
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The personal protective equipment required in these
phases is:
