Siemens SINAMICS S120 Manual page 99

Active Line Connection Modules
When the unit is operated on an ungrounded system (IT system), the connection clip to the
basic interference suppression module of the Active Interface Module must be removed.
Figure 4-9 Removing the connection clips to the basic interference suppression module in the Active Interface Module,
frame size JX
Removing the connector jumper in the Voltage Sensing Module VSM10
If an Active Line Connection Module is operated on an ungrounded system (IT system), the
connector jumper in terminal X530 on the lower side of the component must be removed
from the Voltage Sensing Module (VSM10).
The position of the Voltage Sensing Module must be taken from the previous drawing.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Electrical installation
4.5 Connections
97