Siemens SINAMICS S120 Equipment Manual page 66

Line-side power components
3.2 Active Interface Modules
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
Removing the connector jumper in the VSM10 Voltage Sensing Module
When operating the Active Interface Module on a non-grounded line supply (IT system), at
the Voltage Sensing Module (VSM10), remove the plug-in jumper in terminal X530 at the
lower side of the component.
Use two screwdrivers or another suitable tool to relieve the holding springs in the terminal
and then withdraw the plug-in jumper.
Terminal X530 with connector jumper
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interference suppression module.
Relieve the springs and withdraw the connector
jumper
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0