Yaskawa YASNAC PC NC Connecting Manual - Manual (Page 32)

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YASNAC PCNC Connecting ManualChapter 1: General
1.5 Packaging
When designing the enclosure to house the CNC unit and other equipment, the construction
should provide for the following:
1.5.1 General Notes:
• The enclosure must be air-tight.
• Internal layout of components should provide for ease of mounting, inspection maintenance,
and removal.
• There should be a physical gap of 100mm between components and the enclosure’s wall so
not to restrict air flow for cooling.
• If the operation panel is built into the machine’s enclosure door, provisions to prevent vibra-
tion from the machine is necessary.
• The average temperature increase in the enclosure should be limited to 10
o
C compared to the
external air.
• Use a fan to circulate air to improve cooling efficiency within the enclosure. As a general rule,
the fan should blow air upward at 1m/s over the p.c. board’s surface.
• The fan should not blow air directly onto the p.c.board.
• To prevent malfunctions due to noises, keep noise generating elements 10m away from AC
power supply cables and components (over 90VDC).
• When wiring, separate AC from DC lines, and separate primary side from the transformers’s
secondary side, line filter, etc.