72
7 EMC DIRECTIVES
7.1 Requirements for Compliance with the EMC Directive
Parts of measure against noise
Ferrite core
A ferrite core has the effect of reducing noise in the 30MHz to 100MHz band.
It is not required to fit ferrite cores to cables, but it is recommended to fit ferrite cores if shield cables pulled out of the
enclosure do not provide sufficient shielding effects.
Note that the ferrite cores must be fitted to the cables in the position immediately before they are pulled out of the enclosure.
If the fitting position is improper, the ferrite will not produce any effect.
■
Ferrite core (Recommended product)
Noise filter (power supply line filter)
A noise filter is a component which has an effect on conducted noise. The attachment of the noise filter to the power supply
line of the servo amplifier and Multiple CPU system's power supply is effective for the reducing noise. (The noise filter has the
effect of reducing conducted noise of 10 MHz or less.)
■
Noise ferrite (Recommended product)
The precautions required when installing a noise filter are described below.
• Do not bundle the wires on the input side and output side of the noise filter. When bundled, the output side noise will be
induced into the input side wires from which the noise was filtered.
• Ground the noise filter grounding terminal to the control cabinet with the shortest wire possible (approx. 10cm (3.94 inch)).
Manufacturer
Model name
TDK
ZCAT3035-1330
Manufacturer
Model name
Mitsubishi electric
FR-BLF
Soshin Electric
HF3010A-UN
Noise filter
Noise filter
Input side
(power supply side)
Input side
(power supply side)
Output side
(device side)
Induction
Output side
(device side)
Bundled example
The noise will be included when the
input and output wires are bundled.
Non-bundled example
Separate and lay the input and output
wires.
Summary of Contents for R16MTCPU
Page 1: ...MELSEC iQ R Motion Controller User s Manual R16MTCPU R32MTCPU R64MTCPU ...
Page 2: ......
Page 89: ......