61
Instruction and maintenance manual
ENGLISH
6.5 Useful technical information
Electric safety can be guaranteed only if the elec-
tric system is correctly connected to a grounding
system in good working order, as foreseen by cur-
rent laws concerning electric safety. Therefore, it is
essential to always verify this safety requirements
before starting the system and have the distribution
system carefully inspected by qualified personnel in
case of doubt.
TECNOMAGNETE S.p.A. shall not be responsible for
damages originating from the failure to connect the
system to an appropriate grounding system.
Users shall have to make sure that the system is
protected 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 In 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 configura-
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 operating section. Therefore, they
can be regarded “COLD” magnetic clamping sys-
tems.
The frequent repetition of magnetization/demag-
netization cycles over short intervals of time may
increase the temperature of the magnetic chuck.
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 qualified personnel
only.
Check the supply voltage and frequency.
7
ASSESSMENT OF
RESIDUAL RISKS
In designing the chuck, the manufacturer has
taken into account specific manufacturing crite-
ria and all applicable and current safety require-
ments, which do not however eliminate other
potential residual risks.
This chapter provides a description of the poten-
tial risks that could arise in specific situations.
• As the chuck is designed to be fitted onto tool
machines, it is essential to make sure that op-
erators have read and understood the instruc-
tions contained in this manual, along with
those of the machine where the magnetic
chuck will be installed, and that they are there-
fore aware of he residual risks of this machine
as well.
• The individual protection means that have to
be used when working with the chuck are the
same ones required for the use of the tool ma-
chine on which the module is installed.
• As for the potential residual risks originating
from the exposure to electromagnetic fields,
specific precautions should be taken by preg-
nant women; users suffering from specific
pathologies; users with pacemakers or other
prosthesis with electronic circuits including
hearing aids, intracranial metal implants (or
any other implant situated next to vital ana-
tomic structures), vascular clips or chips in
ferromagnetic material. It is useful to remem-
ber that:
1. TECNOMAGNETE magnetic systems are
stationary systems and do not generate
electric fields.
2. The V/m (Volt/meter) value generated during
operation is equivalent to 0 (ZERO).
3. The electromagnetic emissions generated
during the enabling/disabling phase does
not exceed 100 Gauss at a distance of 100
mm from the system.
