Electrical Connection - Siemens SINAMICS S120 Equipment Manual

3.6

Electrical connection

Operating a Power Module on a non-grounded supply system/IT system
When the device is operated from a non-grounded system/IT system, the connection bracket
for the interference-suppression capacitor must be removed.
To do so, loosen the two screws ("1" in the following diagram) and remove the connection
bracket. Once you have loosened the screws, turn the connection bracket to the side (to the
right) first and then pull it forwards out of the unit.
Figure 3-8
Failing to remove the connection bracket for the noise suppression capacitor on a non-
grounded system/IT system can cause significant damage to the unit.
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1
Removing the connection bracket for the interference-suppression capacitor
WARNING
Power Modules
3.6 Electrical connection
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