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Appendix 1:
Electro Magnetic Compatibility EMC
The ACS 400V unit is delivered with a RFI filter. The RFI filter must be used in order to comply with
EN61800-3, First Environment, Restricted Distribution, and AS/NZS 2064, 1997, Class A
requirements.
The motor cable lengths have to be limited as specified in the table below and the cable must have
effective screen. At the motor end, the cable screen must be earthed 360 degrees with an EMC cable
gland (e.g. Zemrex SCG screened cable glands). For more detailed cabling instructions refer to the
ACS 400 User's Manual Appendix C.
Table 4 Maximum motor cable lengths with input filters ACS400-IF11-3... ACS400-IF41-3 and
switching frequency 4 kHz or 8 kHz.
Converter Type
ACS 401-V004-3-x
ACS 401-V005-3-x
ACS 401-V006-3-x
ACS 401-V009-3-x
ACS 401-V011-3-x
ACS 401-V016-3-x
ACS 401-V020-3-x
ACS 401-V025-3-x
ACS 401-V030-3-x
ACS 401-V041-3-x
Conducted emission with input filters ACS400-IF11-3 and ACS400-IF21-3 complies with the limits for
unrestricted distribution class in First Environment as specified in EN61800-3 (EN50081-1) provided
that maximum motor cable length is 30 m and switching frequency 4 kHz.
Distribution Networks Isolated from Earth
Input filters designed for ACS 400V cannot be used in an isolated, or high impedance earthed industrial
distribution networks.
Line current harmonics
The standard EN 61800-3 refers to EN 61000-3-2 which specifies limits for harmonic current emissions
for equipment intended to be connected to public low-voltage distribution systems.
Low-Voltage Public Supply Network
The limits and requirements of the EN 61000-3-2 apply for equipment with rated current ≤ 16A. The
ACS 400V is a professional equipment to be used in trades, professions or industries and which is not
intended for sale to the general public. Therefore the ACS 400V with a total rated power greater than
1kW conforms with EN 61000-3-2.
22
Filter
ACS400-IF11-3
ACS400-IF11-3
ACS400-IF11-3
ACS400-IF21-3
ACS400-IF21-3
ACS400-IF31-3
ACS400-IF31-3
ACS400-IF41-3
ACS400-IF41-3
ACS400-IF41-3
Switching Frequency
4 kHz
8 kHz
100 m
-
100 m
-
100 m
-
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
100 m
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