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APPENDIX 9 EMC INSTALLATION GUIDELINES
Appendix 9.4 Panel Structure
I - 108
Appendix 9.4.2 Countermeasures for door
(1) Use metal for all members configuring the door.
(2) When joining the door, use a gasket to lower the impedance of the contacting sections, or use a
structure with a large contact area as shown below.
a) Use of gasket
b) Large contact area
EMI gasket
Control
panel
Door
Door
Contact area
Cross-section drawing
Control panel
(3) The EMI gasket or conductive packing must contact the metal surface uniformly and at the correct
position.
[CAUTION]
• When not using a gasket, ground the control panel grounding with a grounding wire to
lower the door's impedance.
• Using screws to fix the plates that have been painted (attachment of packing) is the same
as an insulated state. Peel off the paint and fix the screws.