Siemens SINAMICS G150, Operating Instructions Manual

Page: 89 / 680

Electrical installation
4.7 Power connections
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
89
4.7.7 Removing the connection clip to the basic interference suppression module for
operation on an ungrounded line supply (IT system)
If the cabinet unit is operated on an ungrounded line supply (IT system), the connection
brackets for the basic interference suppression modules in the Basic Line Modules (+H.A29
and +H.A30) must be removed.
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 4-12 Warning label on the connection clip
NOTICE
Damage to the device through not removing the connection clip with a non-grounded line
supply
Failure to remove the connection clip to the basic interference suppression module on a
non-grounded line supply (IT system) can cause significant damage to the device.
•
With a non-grounded line supply (IT system), remove the connection clip to the basic
interference suppression module.