Mitsubishi Electric MELIPC MI5000 Series User Manual page 181

■Ferrite core
A ferrite core is effective for reducing radiated noise in the 30MHz to 100MHz frequency band. It is recommended to install a
ferrite core if a shield cable extended out of the control panel does not provide sufficient shielding effects.
Install a ferrite core to each power cable and signal cable as shown below. If the installation position is not appropriate, the
ferrite core will not produce any effect.
(Ferrite core used for the tests conducted by Mitsubishi: ESD-SR-25 manufactured by NEC TOKIN Corporation)
● Power cable
• Twist the power cable (including the earth wire).
• Install a ferrite core on twisted cables.
• The installation location should be as close as possible to the power supply module.
● Signal wire
• Set the installation location immediately before pulling the signal wires to the outside of the control panel.
Appendix 13 EMC and Low Voltage Directives
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