Siemens SINAMICS S120 Equipment Manual page 65

Operating an Active Interface Module on a non-grounded line supply (IT system)
When the device is operated on a non-grounded line supply (IT system), the integrated basic
interference suppression modules must be deactivated by removing a connection clip.
Note
Warning label on the connection clip
A yellow warning label is attached to each connection clip so that it is easier to find.
• The warning label must be removed from the connection clip (by pulling it off) if the
connection clip is to remain in the unit (operation on a grounded line supply).
• The warning label must be removed together with the connection clip if the unit is
operated on a non-grounded line supply (IT system).
Figure 3-12
Figure 3-13
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
Warning label on the connection clip
Connection clip at the filter module
Line-side power components
3.2 Active Interface Modules
65