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S5-100U
Installation Guidelines
3.3.3
Non-Floating and Floating Configurations
The S5-100U is powered by its own control circuit. The I/Os are powered by the load circuit.
The circuits can either be connected to the same grounding point (non-floating) or galvanically
isolated (floating).
Example of a Non-Floating Connection of Digital Modules
A 24 V DC load circuit has the same chassis grounding as the control circuit of the CPU.
Figure 3-21. Example: Non-Floating Connection of I/Os to the S5-100U
Load power
supply
Common
chassis ground
Central
grounding point
CPU
L+
M
L+
M
PS
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3-25
Содержание SIMATIC S5-100U
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Страница 505: ...B Dimension Drawings EWA 4NEB 812 6120 02b ...
Страница 515: ...C Active and Passive Faults in Automation Equipment EWA 4NEB 812 6120 02b ...
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Страница 523: ...D Information for Ordering Accessories EWA 4NEB 812 6120 02b ...
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Страница 531: ...E Reference Materials EWA 4NEB 812 6120 02b ...
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Страница 535: ...F Siemens Addresses Worldwide EWA 4NEB 812 6120 02b ...
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Страница 543: ...Index EWA 4NEB 812 6120 02b ...
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