Siemens SINAMICS S120 - Page 118

Line connection and line-side power components
3.9 Active Interface Modules internal air cooling
Booksize Power Units
118 Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
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