X1 Functional Ground - Siemens SINAMICS S120 Equipment Manual

Figure 6-15
6.4.3.2

X1 functional ground

X1 functional ground
To ensure that the Voltage Clamping Module functions properly, a functional ground must be
connected to X1. Please note:
● The cables must be routed via the shortest possible path
● Cross-section: 4 mm² to 16 mm²
● When a line filter is used, the functional ground should be located on the metallic
● In systems without a line filter, it should be connected on the PE busbar.
Booksize power units
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
Circuit diagram: Voltage Clamping Module
installation panel in the immediate vicinity of the line filter.
Booksize DC Link Components
6.4 Voltage Clamping Module
431