Emission Requirements; Mct - Danfoss VLT AQUA Drive FC 202 Design Manual

Introduction

2.9.2 Emission Requirements

According to the EMC product standard for adjustable speed frequency converters EN/IEC 61800-3:2004, the EMC
requirements depend on the environment in which the frequency converter is installed. Four categories are defined in the
EMC product standard. The definitions of the four categories together with the requirements for mains supply voltage
conducted emissions are given in Table 2.10.
Category Definition
C1 Frequency converters installed in the first environment (home and office) with a
supply voltage less than 1,000 V.
C2 Frequency converters installed in the first environment (home and office) with a
supply voltage less than 1,000 V. These frequency converters are not plug-in and
cannot be moved and are intended to for professional installation and commis-
sioning.
C3 Frequency converters installed in the second environment (industrial) with a supply
voltage lower than 1,000 V.
C4 Frequency converters installed in the second environment with a supply voltage
equal to or above 1,000 V or rated current equal to or above 400 A or intended for
use in complex systems.
Table 2.10 Emission Requirements
When the generic emission standards are used, the frequency converters are required to comply with Table 2.11
Environment Generic standard
First environment EN/IEC 61000-6-3 Emission standard for residential, commercial,
(home and office) and light industrial environments.
Second environment EN/IEC 61000-6-4 Emission standard for industrial environments.
(industrial environment)
Table 2.11 Limits
®
VLT AQUA Drive FC 202 Design Guide
®
MG20Z102 - VLT is a registered Danfoss trademark
Conducted emission requirement
according to the limits given in EN
55011
Class B
Class A Group 1
Class A Group 2
No limit line
Make an EMC plan
Conducted emission requirement
according to the limits given in EN 55011
Class B
Class A Group 1
2 2
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