Fundamental Principles Of Emc; Definition Of Emc - Siemens SINAMICS G130 Engineering Manual

Environment
(residential, business, and
Voltage
or
current
Specialist
EMC
knowledge
required?
Overview of categories C1 to C4 according to the EMC product standard EN 61800-3
In the "first" environment (i.e. residential areas), the permissible interference level is low. As a result, devices
designed for use in the "first" environment must exhibit low interference emissions. At the same time, however, they
only require a relatively low level of interference immunity.
In the "second" environment (i.e. industrial areas), the permissible interference level is high. Devices designed for use
in the "second" environment are allowed to exhibit a relatively high level of interference emissions, but they also
require a high level of interference immunity.
Environments for SINAMICS converters
Category C2:
The SINAMICS converters described in this document are designed for use in the "second" environment. Since
additional, optional line or EMC filters (RFI suppression filters) can be used, however, SINAMICS G130 and G150
converters as well as the infeeds of the modular system SINAMICS S120 Basic Line Modules can be used in the
"first" environment according to category C2 of the EMC product standard EN 61800-3.
Category C3:
The SINAMICS converters described in this document are designed for use in the "second" environment and are
equipped with line or EMC filters (RFI suppression filters) as standard, according to category C3 of the EMC product
standard EN 61800-3. This applies to SINAMICS G130, G150, and S150 converters as well as to the infeeds for the
SINAMICS S120 modular system (Basic Line Modules, Smart Line Modules, and Active Line Modules including the
associated Active Interface Modules in Chassis and Cabinet Modules format).
Category C4:
SINAMICS converters can also be used in non-grounded (IT) supply systems. In this case, the line filter integrated as
standard according to category C3 must be deactivated by removing the metal bracket connecting the filter
capacitors with the housing (for more information, see the operating instructions for the relevant devices). If this is not
removed, fault tripping can occur in the converter or the filter may be overloaded or even destroyed if a fault occurs.
When the line filters integrated as standard are deactivated, the SINAMICS converters only comply with category C4.
This is expressly permitted by the EMC product standard 61800-3 for IT supply systems in complex systems. In such
cases, plant manufacturers and plant operators (plant owners) must agree upon an EMC Plan, that is, customized,
system-specific measures to ensure compliance with EMC requirements.
█

Fundamental principles of EMC

Definition of EMC

Electromagnetic compatibility depends on two characteristics of the device in question: Its interference emissions
and interference immunity. Electrical devices can be divided into interference sources (transmitters) and potentially
susceptible equipment (receivers). Electromagnetic compatibility is ensured when the existing sources of interference
do not adversely affect potentially susceptible equipment. A device can also be both a source of interference (e.g. a
converter power unit) and potentially susceptible equipment (e.g. a converter control unit).
Adjustable speed electrical power drive systems PDS
C1 C2
"First" environment
commercial areas)
< 1000 V
Installation and commissioning must be carried out by
No
EMC Installation Guideline
Engineering Information
C3
"Second" environment
(industrial areas)
specialist personnel
SINAMICS Engineering Manual - May 2008
C4
≥ 1000 V
or
≥ 400 A
129/396
© Siemens AG