
B-63943EN/02 3.INSTALLATION
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3.3 DESIGN AND INSTALLATION CONDITIONS OF THE
MACHINE TOOL MAGNETIC CABINET
When a cabinet is designed, it must satisfy the environmental
conditions described in Section 3.1. In addition, the magnetic
interference on the screen, noise resistance, and maintenance
requirements must be considered. The cabinet design must meet the
following conditions :
(1) The cabinet must be fully closed.
The cabinet must be designed to prevent the entry of airborne
dust, coolant, and organic solvent.
(2) The cabinet must be designed so that the permissible temperature
of each unit is not exceeded. For actual heat design, see Section
3.4.
(3) A closed cabinet must be equipped with a fan to circulate the air
within. (This is not necessary for a unit with fan.)
The fan must be adjusted so that the air moves at 0.5 m/sec along
the surface of each installed unit.
CAUTION
If the air blows directly from the fan to the unit, dust
easily adheres to the unit. This may cause the
unit to fail. (This is not necessary for a unit with
fan.)
(4) For the air to move easily, a clearance of 100 mm is required
between each unit and the wall of the cabinet.
(5) Packing materials must be used for the cable port and the door in
order to seal the cabinet.
(6) The display unit must not be installed in such a place that coolant
would directly fall onto the unit. The control unit has a
dust-proof front panel, but the unit should not be placed in a
location where coolant would directly fall onto it.
(7) Noise must be minimized.
As the machine and the CNC unit are reduced in size, the parts
that generate noise may be placed near noise-sensitive parts in
the magnetics cabinet.
The CNC unit is built to protect it from external noise. Cabinet
design to minimize noise generation and to prevent it from being
transmitted to the CNC unit is necessary. See section 3.5 for
details of noise elimination/management.
(8) When placing units in the cabinet, also consider ease of
maintenance.
The units should be placed so that they can be checked and
replaced easily when maintenance is performed.
(9) The hard disk drive and floppy disk drive must not be installed
near the source of a strong magnetic field.
(10) The installation conditions of the I/O unit and connector panel
I/O module must be satisfied.