
B–63083EN/02
3. INSTALLATION
16
When a cabinet is designed, it must satisfy the environmental conditions
described in Sec. 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 allowable temperature for
each unit is not exceeded.
See Section 3.4 for details of thermal design of the cabinet.
(3)A closed cabinet must be equipped with a fan to circulate the air
within.
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
abheres to the unit. This may cause the unit to fail.
(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
oreder to seal the cabinet.
(6)Display units must be installed in a location where coolant cannot be
poured directly on it. The unit does have a dust–proof front panel.
(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 Sec. 3.6 for details of noise
elimination/management.
(8)The units must be installed or arranged in the cabinet so that they are
easy to inspect and maintain.
(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.
To obtain good ventilation in the module, the I/O unit must be installed
in the direction shown in the following figure. Clearances of 100 mm
or more both above and below the I/O unit are required for wiring and
ventilation.
Equipment radiating too much heat must not be put below the I/O unit.
3.3
DESIGN AND
INSTALLATION
CONDITIONS OF THE
MACHINE TOOL
MAGNETIC CABINET