X1 Functional Ground - Siemens SINAMICS S120 Equipment Manual

DC link components Booksize
5.5 Voltage Clamping Module
Figure 5-14
5.5.3.2

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.
5-30
Circuit diagram: Voltage Clamping Module
installation panel in the immediate vicinity of the line filter.
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3