Mitsubishi Electric MELSEC L Series User Manual page 148

(13)CC-Link/LT modules
• Use the module under the installation environment of Zone A
• To supply the CL2DA2-B and CL2AD4-B with power using the CL1PAD1, keep the length of the power cable
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Zone C
Zone B
Zone A
(14)Others
(a) 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 the cable in the position just before the cable is extended out of the control panel. If the
installation position is not appropriate, the ferrite core will not produce any effect.
Install a ferrite core to each power cable as shown below.
(Ferrite core used for the tests conducted by Mitsubishi: ESD-SR-250 manufactured by NEC TOKIN
Corporation)
Example
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products, refer to the manual provided with each product.
• CL1Y4-R1B1
• CL1XY8-DR1B2
connected from the CL1PAD1 to the external power supply to 30m or less.
Zone defines categories according to industrial environment, specified in the EMC and Low Voltage Directives,
EN61131-2.
Factory mains (isolated from public mains by dedicated transformer)
Dedicated power distribution, secondary surge protection (rated voltage: 300V or less)
Local power distribution, protected from dedicated power distribution by AC/DC converter and insulation
transformer (rated voltage: 120V or less)
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. For the specified Zones of the following
• CL1Y4-R1B2
• CL1PSU-2A
• CL1XY4-DR1B2