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Application planning
4.14 Electromagnetic compatibility (EMC)
4.14.5.3
Complying with Category C3 interference emission
Description
The drive complies with the limit values of IEC 61800‑3 Category C3 with regard to conducted
and radiated interference emissions under the following conditions:
• Operation on a converter permitted for the specific line system configuration
• Use of shielded motor cables
• Compliance with the maximum permissible total cable length
• Operation with the default pulse frequency or with reduced pulse frequency
• Using line filters:
A separate line filter must be used for each converter.
When supplying converter components via the DC link adapter, it is not guaranteed that limit
values relating to radiated interference are maintained.
4.14.5.4
Limit values for current harmonics
Description
IEC 61800‑3 does not define any current harmonic limits when converters are operated on
industrial line supplies. A system evaluation according to IEC 61000‑3‑14 or
IEC 61800‑3 Annex B.4 is recommended.
More information
We recommend using the "SIZER" configuration software to calculate the current harmonic
limits of the converter.
You can find additional information about SIZER on the Internet:
Download SIZER
4.14.6
EMC requirements for South Korea
Description
The EMC limit values to be observed for South Korea correspond to the limit values of the EMC
product standard for adjustable speed electrical power drive systems IEC 61800-3 Category C2
or to the limit value Class A, Group 1 to KSC 9811. By implementing appropriate additional
measures, the limit values according to category C2 or Class A, Group 1, are adhered to. Further,
additional measures may be required, for instance, using an additional radio interference
suppression filter (EMC filter).
68
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA
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