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Line connection and line-side power components
3.7 Line filters
Note
Length of connecting cables
The connecting cables between the line filter via the Active Interface Module and the line
reactor to the Line Module must be kept as short as possible (max. 10 m).
You must use shielded connecting cables, whose cable shields are attached at both ends.
Shielding can only be omitted if the following conditions are met:
• The cables do not exceed 1 m in length.
• The cables are laid flush with the rear metal wall of the control cabinet.
• The cables are laid in a way that keeps them physically separate from signal cables.
Do not route any cables near the line filter. If this cannot be avoided, observe a minimum
distance of 200 mm.
3.7.2
Overview of line filters
In conjunction with line reactors and a consistent EMC-compliant system configuration, line
filters limit the conducted electromagnetic emissions generated by the Line Modules to the
limit values according to EN 61800-3. A separate line filter must be used for SINAMICS
S120 drive line-ups according to the following table.
NOTICE
Damage caused by connecting several loads to the same line infeed point
Damage can be caused if several loads are connected to the same line infeed point.
• Provide interference suppression for the other loads using appropriate line filters. To
prevent mutual interference, it is not permissible that this line filter is equipped with
capacitors with respect to ground. Filter series B84144A*R120 (EPCOS) is
recommended.
NOTICE
Damage caused by using third party filters
According to product standard EN 61800-3, RFI suppression commensurate with the
relevant rated conditions must be provided and is a legal requirement in the EU (EMC
Directive). Line filters and line reactors are required in order to comply with this standard.
The use of filters of other makes can lead to limit value violations, resonances,
overvoltages, and irreparable damage to motors or other equipment.
• The machine manufacturer must provide verification that the machine equipped with the
drive products and the installed suppression elements, e.g. line filters, is EMC-compliant
before the machines are placed in the market.
Line filter ranges that are coordinated with the different power stages are available for the
SINAMICS S120 drive system. These line filters differ with regard to the frequency range in
which they reduce the conducted emissions.
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Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
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