Electromagnetic Compatibility Of The Converters - Siemens SINAMICS G120C Operating Instructions Manual

10.6

Electromagnetic compatibility of the converters

The electromagnetic compatibility refers to both the immunity and the emitted interference of
a device.
The following disturbance variables must be taken into consideration when evaluating the
electromagnetic compatibility:
● Conducted low-frequency disturbance variables (harmonics)
● Conducted high-frequency disturbance variables
● Field-based, low-frequency disturbance variables
● Field-based, high-frequency disturbance variables
The permitted limit values are defined in the EMC product standard EN 61800-3 in EMC
categories C1 to C4.
Below you will find some key definitions relating to this.
Classification of EMC behavior
The EMC environment and the EMC Categories are defined in the EMC product standard
EN 61800-3 as follows:
Environments:
First environment (public systems)
An environment that includes domestic premises and establishments that are connected
directly to a public low-voltage line supply without the use of an intermediate transformer.
Example: Houses, apartments, commercial premises, or offices in residential buildings.
Second environment (industrial systems)
An environment that includes all other establishments which are not connected directly to a
public low-voltage line supply.
Example: Industrial areas and technical areas of buildings that are supplied by an assigned
transformer.
Categories
Category C4
Drive systems with a rated voltage ≥ 1,000 V, with an LO output current ≥ 400 A, or for use
in complex systems in the second environment
Drive systems which correspond to category C4 may only be installed in the second
environment.
Category C3
Drive systems with a rated voltage < 1,000 V, which are intended for use in the second
environment and not for use in the first environment.
SINAMICS G120C converter
Operating Instructions, 07/2015, FW V4.7 SP3, A5E34263257B AC
10.6 Electromagnetic compatibility of the converters
Technical data
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