Siemens SINAMICS S120 Manual page 353

Category C4
Drive systems with a rated voltage ≥ 1000 V with an 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. An EMC plan must be drawn up.
Figure 10-1
SINAMICS S120 units are designed for use in the second environment.
Limiting interference emission
Radio interference suppression filters are required in order to limit interference emission.
These filters can either be integrated in the device, or externally mounted.
● It is not permissible to use Basic Line Filters in IT line systems.
● For Active Interface Modules and Basic Line Modules, the connection bar of the Y
capacitors with respect to ground must be removed.
● In conjunction with Smart Line Modules, to reduce symmetrical interference emission,
special filters can be used (without capacitors to ground).
Interference immunity
With reference to interference immunity, SINAMICS S120 units can also be used in the first
environment.
Note
Integrating SINAMICS S120 in other plants/machines
When PDS (variable-speed drive systems) are integrated in other plants/machines,
additional measures may be required in order to comply with their product standards.
With respect to the compliance with limits for harmonic currents, the EMC product standard
EN61800-3 for PDS refers to compliance with standards EN 61000-3-2 and EN 61000-3-12.
Converters are classified as equipment used on a professional basis, deployed in certain
areas of business and industry - and are not operated in the general public domain.
AC Drive
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
Cabinet design and EMC for components, Blocksize format
Interrelationship between environments and categories
10.3 Information on electromagnetic compatibility (EMC)
353