PNOZ e3.1p
Operating Manual PNOZ e3.1p
21240-EN-09
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Examples
WARNING!
Muting the safety function
A valid signal at the OR input of a PNOZelog unit mutes its safety function
and can lead to the most serious injuries and death.
– Before using the OR function, carry out a risk analysis and use other
measures to establish a safe condition.
The following examples represent various ways in which PNOZelog units can be logically
connected. In all the application examples, 2 loads may also be connected to the safety
outputs.
} Example 1:
Loads are connected to the safety outputs of Unit 1. In addition, a safety output is AND-
linked to 4 other PNOZelog units via the logic input S36.
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