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Siemens SIMATIC S5-95F User Manual

Siemens SIMATIC S5-95F
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S5-95F Expansion of Basic System with External I/Os
5.9 Grounded or Non-Grounded S5-95F Configuration
The S5-95F can be configured both with a grounded or with an isolated (non-grounded) reference
potential.
Configuration with Grounded Reference Potential
Usually, you should configure the S5-95F with a grounded reference potential. The grounded
configuration ensures a very high degree of interference immunity. Interference currents that occur
are discharged by the standard mounting rail to the protective conductor.
Figure 5-24 shows the connections necessary for a grounded S5-95F configuration.
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Figure 5-24. Grounded S5-95F Configuration
To configure the S5-95F with a grounded reference potential, you should proceed as follows:
Connect the terminal of subunit A and subunit B with the standard mounting rail.
Connect both subunits with each other.
Connect the standard mounting rail with the protective conductor.
EWA 4NEB 812 6210-02
5-27

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Siemens SIMATIC S5-95F Specifications

General IconGeneral
BrandSiemens
ModelSIMATIC S5-95F
CategoryController
LanguageEnglish

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