Siemens SINAMICS S120 Equipment Manual page 181

Removing the connector jumper on the VSM10 Voltage Sensing Module
When operating the Smart Line Module on an ungrounded line supply (IT system), at the
Voltage Sensing Module (VSM10), remove the connector 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 connector jumper.
Terminal X530 with connector jumper
Note
Replacing a VSM10 Voltage Sensing Module
When replacing a Voltage Sensing Module VSM10 by one with a different article number,
then inform yourself about the applicable boundary conditions.
Adjusting the fan voltage (-T10)
The power supply for the device fans (1 AC 230 V) in the Smart Line Module (-T10) is taken
from the line supply using transformers. The installation position of the transformers is
indicated in the interface descriptions.
The transformers are fitted with primary taps so that they can be fine-tuned to the line supply
voltage.
If necessary, the connection fitted in the factory, shown with a dashed line, must be
reconnected to the actual line voltage.
Note
Two transformers (–T10 and –T20) are installed in Smart Line Modules, frame size JX. The
two primary-side terminals on each of these devices must be adjusted together.
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9
5.3 Smart Line Modules
Relieve the springs and withdraw the connector
jumper
Line Modules
179