Emc Test Results; Emission Requirements - Danfoss VLT AutomationDrive FC 300 Design Manual

Product Introduction
To reduce the interference level from the entire system (unit and installation), make motor and brake cables as short as
possible. Avoid placing cables with a sensitive signal level alongside motor and brake cables. Radio interference higher than
50 MHz (airborne) comes from the control electronics. For more information on EMC, see 7.8 EMC-Correct Installation.

3.5.2 EMC Test Results

The following test results have been obtained using a frequency converter (with options if relevant), a screened control
cable, a control box with potentiometer, as well as a motor and motor screened cable.
RFI filter type
EN 55011
Standards and
EN/IEC 61800-3
requirements
H2
FC 302 90-800 kW 380-500 V
90-1200 kW 525-690 V
H4
FC 302 90-800 kW 380-500 V
90-315 kW 525-690 V
Table 3.14 EMC Test Results (Emission and Immunity)
WARNING
This type of power drive system is not intended to be used on a low-voltage public network that supplies domestic
premises. Radio frequency interference is expected if used on such a network, and supplementary mitigation measures
may be required.

3.5.3 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. These environments along with the
mains voltage supply requirements are defined in Table 3.15.
Category Definition
C1 Frequency converters installed in a home and office environment with a supply
voltage less than 1,000 V.
C2 Frequency converters installed in the home and office environment 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 commissioning.
C3 Frequency converters installed in an industrial environment with a supply voltage
lower than 1,000 V.
C4 Frequency converters installed in an industrial 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 3.15 Emission Requirements
When the generic emission standards are used, the frequency converters are required to comply with Table 3.16
®
VLT AutomationDrive FC 300 Design Guide 90-1200 kW
Conducted Emission
Class B Class A
Housing, trades group 1
and light Industrial
industries environment
Category C1 Category C2
First First
environment environment
Home and Home and
office office
No No
No No
No 150 m
No 30 m
MG34S202 - Rev. 2013-08-19
Radiated Emission
Class A group Class B
2 Housing, trades
Industrial and light
environment industries
Category C3 Category C1
Second First environment
environment Home and office
Industrial
150 m No
150 m No
150 m No
150 m No
Conducted emission requirement
according to EN 55011 limits
Class A Group 1
Class A Group 2
No limit line
Make an EMC plan
3
Class A group 1
Industrial
environment
Category C2
First environment
Home and office
No
No
Yes
No
Class B
43
3