43
Instruction and maintenance manual
ENGLISH
4
INSTALLATION
4.1 General
Electric safety can be guaranteed only if the electric
system is correctly connected to a grounding sys-
tem in good working order, as foreseen by current
laws concerning electric safety. Therefore, it is es-
sential to always verify this safety requirements be-
fore starting the unit and have the distribution sys-
tem carefully inspected by qualied personnel in
case of doubt. TECNOMAGNETE S.p.A. shall not be
responsible for damages originating from the failure
to connect the unit to an appropriate grounding sys-
tem.
Users shall have to make sure that the unit is pro-
tected with a differential magnetothermal switch
suitable to withstand the rated current used by the
system. It is therefore necessary to install a suitable
protection with magnetothermal switch (curve C)
with a I
n
value compliant with nameplate data.
TECNOMAGNETE systems are permanent-electro
systems, which means that they need to be powered
only during the short cycle phases. This congura-
tion is designed to ensure maximum safety in the
event of power failure.
TECNOMAGNETE controllers use the power supply
by means of a sophisticated partializing process,
which means that they can be operated only when
the machine is idle and that they require a rated cur-
rent that is normally lower than the one required to
operate the machine on which the magnetic system
being controlled is installed.
ATTENTION
Do not perform repeated MAGNETIZATION/DE-
MAGNETIZATION CYCLES
TECNOMAGNETE systems are constituted by per-
manent magnets and use electric power only to en-
able/disable the area being machined. Therefore,
they can be regarded “COLD” magnetic clamping
systems.
The repetition of MAGNETIZATION/DEMAGNETI-
ZAZION cycles at very close intervals may increase
the temperature of the magnetic chuck, especially
when using controllers with DEMAG NUFLUX cycle.
It is therefore advisable to run cycles only when nec-
essary.
The connection of the magnetic chuck to the power
supply must be carried out by qualied personnel
only.
Check the supply voltage and frequency.
The electrical supply to the controller must be sin-
gle-phase 230V/400V/480V (phase + neutral) or two-
phase (phase + phase).
ATTENTION
ST100 controllers are designed to operate with sup-
ply voltages of 230V 50/60 Hz and cannot therefore
be used for Tecnomagnete modules with lower or
higher ratings. To use different voltages, install a
transformer with a suitable rating (not above 4 kVA)
or contact TECNOMAGNETE S.p.A. for assistance.
ATTENTION
ST200 controllers are designed to operate with
supply voltages of 200V - 480V at 50/60 Hz and
can therefore be used, after validation, to enable
TECNOMAGNETE modules with different voltage
specications. To use different voltages, install a
transformer with a rating compliant to that of the
magnetic chuck or contact TECNOMAGNETE S.p.A.
for assistance.
ATTENTION
All cables supplied must have a bending radius with
a diameter <10mm and a tension of >15N/mm
2
. In-
stallation must always be performed by qualied
technicians in accordance with current law require-
ments.
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