Emission Requirements - Danfoss FC 101 Design Manual

Product Overview

2.8.1 Emission Requirements

According to the EMC product standard for frequency
converters, EN/IEC 61800-3:2004 the EMC requirements
depend on the intended use of the frequency converter.
The EMC product standard defines 4 categories. The 4
categories and the requirements for mains supply voltage
conducted emissions are defined in Table 2.11.
Category Definition
C1 Frequency converters installed in
the first environment (home and
office) with a supply voltage less
than 1000 V.
C2 Frequency converters installed in
the first environment (home and
office) with a supply voltage less
than 1000 V, which are neither
plug-in nor movable and are
intended to be installed and
commissioned by a professional.
C3 Frequency converters installed in
the second environment (industrial)
with a supply voltage lower than
1000 V.
C4 Frequency converters installed in
the second environment with a
supply voltage equal to or above
1000 V or rated current equal to or
above 400 A or intended for use in
complex systems.
Table 2.10 Emission Requirements
®
VLT HVAC Basic Drive FC 101 Design Guide
When the generic (conducted) emission standards are
used, the frequency converters are required to comply
with the following limits
Environment
Conducted
First
emission
environment
requirement
(home and
according to
office)
the limits given
Second
in EN 55011
environment
Class B
(industrial
environment)
Table 2.11 Limits at Generic Emission Standards
Class A Group 1
Class A Group 2
No limit line.
An EMC plan
should be
made.
MG18C502 - Rev. 2013-09-06
Conducted
emission
requirement
Generic standard
according to the
limits given in
EN 55011
EN/IEC 61000-6-3 Emission Class B
standard for residential,
commercial and light
industrial environments.
EN/IEC 61000-6-4 Emission Class A Group 1
standard for industrial
environments.
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