Siemens SIMATIC S7-1500 System Manual page 64

S7-1500 in the overall configuration
The figure below shows the overall configuration of the S7-1500 (load voltage supply and
grounding concept) with infeed from a TN-S network.
①
②
③
④
Figure 6-1
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB
Main switch
Short-circuit and overload protection on the primary side
Short-circuit and overload protection on the secondary side
The load current supply (galvanic isolation)
Operating the S7-1500 with grounded reference potential
6.2 Operating the S7-1500 on grounded infeed
Wiring
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