Electrical Connection - Siemens SINAMICS S120 Manual

Line-side power components
4.6 Active Interface Modules
4.6.5

Electrical connection

The Active Interface Module is electrically connected in accordance with the connection
examples shown in section "Interface description".
Operating an Active Interface Module on an ungrounded line supply (IT system)
When the device is operated on an ungrounded line supply (IT system), the integrated basic
interference suppression modules must be deactivated by screwing out 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 4-21
94
Warning label on the connection clip
Air-cooled chassis power units
Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3