Electrical Configuration; Wiring Rules - Siemens SIMATIC S7-1500 System Manual

Connecting

8.3 Electrical configuration

8.3 Electrical configuration
A system with the SIMATIC Drive Controller consists of several individual components. For a
system configured with these components to meet the EMC and safety standards, certain
design guidelines must be followed.
Grounding concept and radio interference suppression measures
The individual system components are attached to a metal cabinet panel.
In addition to the protective grounding of system components, special precautions must be
taken to guarantee safe, error-free operation of the system. These measure include:
• Shielded signal lines
• Special equipotential bonding connections
• Isolation and shielding measures
Design guidelines
Take the following measures to achieve the best possible noise immunity for the complete
system (controller, power unit and machine):
• Ensure a minimum distance of 200 mm between the signal lines and power cables.
• If necessary, signal and power cables may cross one another (if possible at an angle of
90°), but must never be laid close or parallel to one another.
• Only use cables approved by Siemens for the signal lines from and to the SIMATIC Drive
Controller.
• Signal lines must not be routed close to strong external magnetic fields (for example
motors or transformers).
• If signal lines cannot be routed a sufficient distance away, they must be installed in
grounded (metal) cable ducts.
You can find further information on interference suppression measures and the connection
of shielded cables in the EMC Design Guidelines configuration manual
(https://support.industry.siemens.com/cs/ww/en/view/60612658).
See also
Protective conductor and potential equalization, functional ground (Page 131)
8.4

Wiring rules

Use suitable cables to connect a system to the SIMATIC Drive Controller . You can find wiring
rules for the SIMATIC Drive Controller in "Wiring (Page 117)" under the relevant interface
descriptions.
You can find the wiring rules and information on connection technology for SINAMICS
components in the manuals of the SINAMICS components in question.
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SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD