Electrical Connection - Siemens SINAMICS S120 Manual

Line-side power components
4.7 Active Interface Modules Chassis-2
4.7.6

Electrical connection

The Active Interface Module Chassis-2 is electrically connected in accordance with the
connection examples shown in section "Interface description".
Operating an Active Interface Module Chassis-2 on an ungrounded supply system (IT system)
When the device is operated in a non-grounded network (IT network), the integrated basic
interference suppression module must be deactivated by removing a connection clip.
Note
Warning label on the connection clip
A yellow warning label is mounted on the connection clip to make it 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 4-34
116
Warning label on the connection clip
Air-cooled chassis power units
Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3