Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 48)

Section 2A
Planning Your System Layout
2A-3
When designing the cabinet, consider the environment in which the control
operate. The degree of cabinet sealing and whether or not external air
must be filtered before entering the cabinet will depend on the expected
environmental conditions.
Industrial environments frequently require the cabinet be airtight. If it is
not airtight, outside air may bring contaminants into the cabinet. Dust will
accumulate in high voltage areas on the operator panel. Coolant mist
adhering to this dust may cause an insulation failure.
ATTENTION: If the environmental conditions require an
airtight cabinet, the cooling system cannot bring outside air into
the cabinet. In this case, an air conditioner or heat exchanger
may be required.
To make the cabinet airtight, place gaskets between the component
mounting faces, service ports, doors, covers, and the cabinet.
Figure 2A.1 is an installation example that shows gasket placement
between the operator panel and the cabinet.
Figure 2A.1
Gasket Placement Example
19437
2A.3
Designing the Cabinet for
your System’s Environment