DOC-0017-04-EN: AC20 Series - Hardware Installation Manual
110 (154)
DOC-0017-04-EN-A 22.03.2023
EMC Compliance
A list of EMC Compliance definitions relevant to this section are listed in the table below:
Terminology
Description
Environment
First Environment:
Environment that includes domestic premises, it also includes establishments
directly connected without transformers to a low-voltage power supply
network which supplies buildings used for domestic purposes.
Note: Houses, apartments, commercial premises or offices in a residential
building are examples of first environment locations.
Second Environment:
Environment that includes all establishments other than those directly
connected to a low-voltage power supply network which supplies buildings
used for domestic purposes.
Note: Industrial areas, technical areas of any building fed from a dedicated
transformer are examples of second environment locations.
Category
Category C1: PDS (Power Drive System) of rated voltage less than 1000V, intended for
use in the first environment.
Category C2:
PDS (Power Drive System) of rated voltage less than 1000V, which is neither
a plug-in device nor a movable device and, when used in the first
environment, is intended to be installed and commissioned only by a
professional.
Note: A professional is a person or an organisation having necessary skills in
installing and/or commissioning power drive systems, including their EMC
aspects.
Category C3:
PDS (Power Drive System) of rated voltage less than 1000V, intended for
use in the second environment and not intended for use in the first
environment.
Category C4:
PDS (Power Drive System) of rated voltage equal to or above 1000V, or
rated current equal to or above 400A, or intended for use in complex systems
in the second environment.
EMC Standards
The EMC standards are concerned with two types of emission:
1. Radiated:
Those in the band 30MHz – 1000MHz which radiate into the environment.
2. Conducted:
Those in the band 150kHz – 30MHz which are injected into the supply.
Radiated Emissions: Standards
The Radiated Emissions standards have common roots (CISPR 11 & CISPR14), so there is some
commonality in the test levels applied in different environments as shown in the table below:
Standards
Limits*
Product
Specific
Generic
Frequency (MHz)
dB(µV/m)
EN 61800-3
EN61000-6-3
EN61000-6-4
Category C1
Equivalent
Not applicable
30 - 230
30
230 - 1000
37
Category C2
Not applicable
Equivalent
30 - 230
40
230 - 1000
47