Mitsubishi Electric CC-Link IE Field NZ2GF12A-60IOLH8 User Manual page 150

External power supply
• Use a CE-marked product for an external power supply and always ground the FG metal fitting. (External power supply
used for the tests conducted by Mitsubishi: TDK-Lambda DLP-120-24-1, IDEC PS5R-SF24, PS5R-F24)
• Use a power cable of 10m or shorter when connecting it to the module power supply terminal.
• Use a power cable of 30m or shorter when connecting it to the load power supply for output part.
Others
■Ferrite core
A ferrite core has the effect of reducing radiated noise in the 30MHz to 100MHz band.
It is recommended to attach ferrite cores if shielded cables coming out of the control panel do not provide sufficient shielding
effects.
Note that the ferrite cores must be attached at the position closest to the cable hole inside the control panel. If attached at an
improper position, the ferrite core will not produce any effect.
For the FG metal fitting that is connected to the load power supply of an I/O module and CC-Link IE Field Network cables,
attach a ferrite core 4cm away from the module.
(Ferrite core used for the tests conducted by Mitsubishi: NEC TOKIN ESD-SR-250, TDK ZCAT3035-1330)
Ex.
Example
■Noise filter (power supply line filter)
A noise filter is a component which has an effect on conducted noise. Attaching the filter can suppress more noise. (The noise
filter has the effect of reducing conducted noise of 10MHz or less.)
Connect a noise filter to the load power supply of an I/O module. Use a noise filter with the damping characteristics equivalent
to those of MA1206 (manufactured by TDK-Lambda Corporation). Note that a noise filter is not required if the module is used
in Zone A defined in EN61131-2.
The precautions for attaching a noise filter are described below.
• Do not bundle the cables on the input side and output side of the noise filter. If bundled, the output side noise will be
induced into the input side cables from which the noise was filtered.
Filter
Noise will be induced when the
input and output wires are bundled.
• Ground the noise filter grounding terminal to the control panel with the shortest cable possible (approx. 10cm).
APPX
148
Appendix 4 EMC and Low Voltage Directives
Input side
Input side
(power supply side)
(power supply side)
Induction
Output side
(device side)
Filter
Output side
(device side)
Separately install the input and
output wires.