X530 Neutral Point Grounding - Siemens Sinamics S120 Manual

Line-side power components
3.3 Active Interface Modules, air-cooled
3.3.3.5

X530 neutral point grounding

Table 3- 10
The Voltage Sensing Module is supplied with inserted jumper. When delivered, the neutral
point is connected to the protective conductor via the connector jumper. Current can flow to
PE. This connection is removed by removing the connector jumper. The measurement is
then electrically isolated.
Figure 3-7
When the Active Interface Module is operated on an ungrounded line system (IT system),
the connection clip must be removed, see "Electrical connection (Page 61)".
56
Neutral point grounding X530
Terminal Designation
1 Neutral point of the
voltage sensing
2 Ground potential
Internal circuit of the VSM10 Voltage Sensing Module
Technical data
Jumper inserted: Grounded measurement
Jumper not inserted: isolated measurement
Liquid-cooled chassis power units
Manual, (GH7), 11/2016, 6SL3097-4AM00-0BP7