Siemens SINAMICS S120 Manual page 118

Line connection and line-side power components
3.9 Active Interface Modules internal air cooling
Note
Functional disturbances as a result of line supply disturbances
The devices have been tested for standard line supplies according to EN 61800-3. For line
supplies with significant disturbances (e.g. total harmonic distortion (THD) > 8 %; very high
percentage of switching peaks in the range > 1 kV), the filter of the line-up can be
overloaded as a result of the additional filter power.
• Decouple the drive line-ups using suitable measures:
– Using a Basic Line Filter
– Use an HFD line reactor with damping resistor instead of an Active Interface Module
118
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8