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2) Power cable and grounding cable
The grounding/power cable of PLC should be treated as follows.
(1) The panel should be grounded with a thick wire(2 mm
high frequency.
(2) L.G(Line Ground) terminal and FG(Frame Ground) terminal functionally let the noise inside the PLC flow
into the ground, so a wire of which impedance is low should be used.
(3) Since the grounding cable itself may generate noise, thick and short wiring may prevent it serving as an
antenna.
12.1.3 Cable
1) Extension cable treatment
The extension cable of ML200 series is with fast electric signal. Therefore, high frequency noise wave is
emitted from the extension cable. To comply with the CE specifications, please attach the ferrite core on
the extension cable as presented in the figure.
Ferrite core
ZCAT3035-1330
2) Fixing a cable in the panel
If the extension cable of ML200 series is to be installed on the metallic panel, the cable should be 1cm
and more away from the panel, preventing the direct contact.
The metallic plate of panel may shield noise from electromagnetic wave while it a cable as a noise source
is close to the place, it can serve as an antenna. Every fast signal cable as well as the extension cable
needs proper spacing from the panel.
3
Pnet I/F Module 2MLL-PSRA, 2MLL-PMEA, 2MLL-PMEB User's Guide
Chapter 12 Compliance with EMC Specifications
Mode
CU1330D
E Tech Electronics
Honeywell
2
or above) to secure a lower impedance even in
Manufacturer
TDK
Remarks
-
-
January 2019
R220
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