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AVL F-FEM-CON User Manual

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Operation
50
F-FEM-CON — Users Guide
4.4 Digital Inputs
4.4.1
Block Diagram
The pin assignment above applies to X19 and X20.
The digital inputs are reverse battery protected and bipolar, i.e. there is no
explicit + and - contact. If the digital inputs are used to monitor a consumer with
high inductance (e.g.: Digital output powers a relay and is fed back to a digital
input), the load dump voltage must be limited to the switching threshold for logic
low.
A group of 8 inputs has a common reference potential (Common). This common
reference potential can be connected to +24 V (Common source) or to ground
(sink circuit), as shown in the figure above.
Fig. 27

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AVL F-FEM-CON Specifications

General IconGeneral
BrandAVL
ModelF-FEM-CON
CategoryMeasuring Instruments
LanguageEnglish

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