Electrical Connection - Siemens SINAMICS S120 Equipment Manual

3.6

Electrical connection

Operating a Power Module on an insulated network (IT)
When the device is operated on an insulated network (IT), the connection bracket for the
interference-suppression capacitor must be removed.
To do so, loosen the two screws ("1" in Fig. 3-8) 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.
Front view
Fig. 3-8
Warning
Failing to remove the connection bracket for the interference-suppression capacitor on a
non-grounded system/IT system can cause significant damage to the unit.
Chassis Power Units Liquid Cooled
SINAMICS S120 Equipment Manual, Edition 12/2007, 6SL3097-2AM00-0BP4
Removing the connection bracket for the interference-suppression capacitor
Connection bracket for
interference-suppression
capacitor
1
Power Modules
3.6 Electrical connection
Rear panel
View from
above
Front side
3-13