Siemens Sinamics S120 Manual page 119

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Danger to life through electric shock due to unconnected cable shields

Hazardous touch voltages can occur through capacitive cross-coupling due to unconnected

cable shields.

• As a minimum, connect cable shields and the cores of power cables that are not used

Damage caused by overheating as a result of an inadmissible mounting position

If the Active Interface Module is not operated in a vertical position with the line supply

terminals at the bottom, then the component can be damaged.

• Only operate the Active Interface Module in a vertical position with the line connection at

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. 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:

Booksize Power Units

Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6

(e.g. brake cores) at both ends at the grounded housing potential.

– Using a Basic Line Filter

– Use an HFD line reactor with damping resistor instead of an Active Interface Module

Line connection and line-side power components

3.9 Active Interface Modules internal air cooling