Danfoss VLT Compressor Drive CDS 803 - Emission Requirements

1
2
z
z
z
L1
L2
L3
PE
U
V
W
C
S
I
2
I
1
I
3
I
4
C
S
C
S
C
S
C
S
I
4
C
S
z
PE
3
4
5
6
175ZA062.12
1 Ground wire 3 AC mains supply 5 Screened motor cable
2 Screen 4 Frequency converter 6 Motor
Illustration 2.7 Generation of Leakage Currents
2.7.2 Emission Requirements
The EMC product standard for frequency converters
denes 4 categories (C1, C2, C3, and C4) with specied
requirements for emission and immunity. Table 2.4 states
the denition of the 4 categories and the equivalent classi-
cation from EN 55011.
Category Denition
Equivalent
emission class
in EN 55011
C1 Frequency converters installed in
the rst environment (home and
oce) with a supply voltage less
than 1000 V.
Class B
C2 Frequency converters installed in
the rst environment (home and
oce) with a supply voltage less
than 1000 V, which are not plug-in
and not movable, and must be
installed and commissioned by a
professional.
Class A Group 1
C3 Frequency converters installed in
the second environment (industrial)
with a supply voltage lower than
1000 V.
Class A Group 2
Category Denition
Equivalent
emission class
in EN 55011
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.
No limit line.
Make an EMC
plan.
Table 2.4 Correlation between IEC 61800-3 and EN 55011
When the generic (conducted) emission standards are
used, the frequency converters are required to comply with
the limits in Table 2.5.
Environment
Generic emission
standard
Equivalent
emission class in
EN 55011
First
environment
(home and
oce)
EN/IEC 61000-6-3 Emission
standard for residential,
commercial, and light
industrial environments.
Class B
Second
environment
(industrial
environment)
EN/IEC 61000-6-4 Emission
standard for industrial
environments.
Class A Group 1
Table 2.5 Correlation between Generic Emission Standards and
EN 55011
Product Overview
VLT
®
Compressor Drive CDS 803
20 Danfoss A/S © 12/2015 All rights reserved. MG18N202
22