Omron ACCURAX G5 User Manual page 249

Control Panel Structure
Openings in the control panel, such as holes for cables, operating panel mounting holes, and
gaps around the door, may allow electromagnetic waves into the panel. To prevent this,
observe the recommendations described below when designing or selecting a control panel.
Case Structure
Use a metal control panel with welded joints at the top, bottom, and sides so that the surfaces will
be electrically conductive.
If assembly is required, strip the paint off the joint areas (or mask them during painting), to make
them electrically conductive.
The panel may warp and gaps may appear when screws are tightened. Be sure that no gaps
appear when tightening screws.
Do not leave any conductive part unconnected.
Ground all units within the case to the case itself.
Door Structure
Use a metal door.
Use a water-draining structure where the door and case fit together, and leave no gaps. (Refer to
the diagrams.)
Use a conductive gasket between the door and the case. (Refer to the diagrams.)
Strip the paint off the sections of the door and case that will be in contact with the conductive
gasket (or mask them during painting), so that they will be electrically conductive.
The panel may warp and gaps may appear when screws are tightened. Be sure that no gaps
appear when tightening screws.
Case
A
[Control panel]
[Door (interior side)]
Accurax G5 AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
4-3 Wiring Conforming to EMC Directives
Door
B
Oil-resistant gasket
Oil-resistant gasket
Conductive gasket
Conductive gasket
[A-B cross-section diagram]
4
Door
4-25