Siemens SINUMERIK 840 sl, Руководство пользователя, Страница: 60 / 68

Rules for routing cables
In order to achieve the greatest possible EMC compatibility for the complete system (control,
power unit, machine), the following EMC measures must be carefully observed:
● If necessary, signal and power cables may cross one another (if possible at an angle of
90°), but must never be laid close or parallel to one another.
● Only use cables approved by SIEMENS for the signal lines from and to the Control Unit.
● Signal cables must not be routed close to strong external magnetic fields (e.g. motors and
transformers).
● If signal lines cannot be routed a sufficient distance away from other cables, they must be
installed in grounded cable ducts (metal).
● The operator panel fronts, MCPs, MPPs, and full keyboards must be installed in metallically
enclosed EMC-compatible housings.
Further information on RFI suppression measures and the connection of shielded cables can
be found in the EMC Installation Guidelines.
9.1.4 SINUMERIK_SouthKorea_Note
EMC limit values in South Korea
The EMC limit values to be complied with for South Korea correspond to the limit values of the
EMC product standard for variable-speed electric drives EN 61800-3, Category C2, or limit
value class A, Group 1 according to EN 55011. By applying suitable supplementary measures,
the limit values according to Category C2 or according to limit value class A, Group 1, are
maintained. Further, additional measures may be required, for instance, using an additional
radio interference suppression filter (EMC filter).
The measures for EMC-compliant design of the system are described in detail in this manual
respectively in the Installation Guideline EMC.
Please note that the final statement on compliance with the standard is given by the respective
label attached to the individual unit.
Technical data
9.1 Supplementary electrical conditions
Machine control panel: MCP 398C
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Manual, 07/2018, A5E43199783B AB