
B–62075E/04
2. HARDWARE
85
The peripheral units, such as the control unit and CRT/MDI, have been
designed on the assumption that they are housed in closed cabinets. In this
manual “cabinet” refers to the following:
(1)Cabinet manufactured by the machine tool builder for housing the
control unit or peripheral units;
(2)Cabinet for housing the flexible turnkey system provided by FANUC:
(3)Operation pendant, manufactured by the machine tool builder, for
housing the CRT/MDI unit or operator’s panel ;
(4)Equivalent to the above.
The environmental conditions when installing these cabinets shall
conform to the following table.
Ambient
temperature
Operating
Ambient temperature outside the cabinet:
+0 °C to +45°C
Ambient temperature inside the cabinet:
0°C to +55°C (+5°C to +50°C for MMC–IV)
Storage or transportation
–20°C to +60°C
Temperature
change rate
Allowable temperature change rate x 1.1°C per minute
Humidity Relative humidity: 30% to 95% (no condensation)
Altitude No more than 2000 m above sea level
Vibration Operating: 0.5 G or less
Atmosphere
Environment outside the cabinet:
Special consideration is required when cabinets are used
in an environment exposed to relatively high levels of
contaminants (dust, coolant, organic solvent, acid, corro-
sive gas, salt, and so forth).
Environment inside the cabinet:
Ensure that the equipment housed in the cabinet is ex-
posed to those contaminants described above.
Radiation fins, fans, and so forth outside the cabinet:
Ensure that these components are not directly exposed to
coolant, lubricant, or chips.
Ionizing radiation
and non–ionizing
radiation
When a cabinet is used in an environment exposed to
radiation (microwaves, ultraviolet rays, laser beams, X
rays, and so forth), take protective measures.
2.4.12
Environmental
Requirement