Siemens SINAMICS S120 Combi - Equipment damage due to electric fields or electrostatic discharge

System overview
1.1 SINAMICS S120 Combi components
SINAMICS S120 Combi
22 Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
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Figure 1-1 Connection example, S120 Combi 4 axes Power Module with 2 expansion axes (maximum expansion stage)