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Beckhoff EL2904 User Manual

Beckhoff EL2904
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Notes on the documentation
EL2904 7Version: 3.2.2
1.2 Version numbers of the documentation
Version Comment
3.2.2 New fonts undone
3.2.1 Chapter "Due diligence" expanded
"Safety parameters" changed to "Target failure measures"
“Service life” changed to “Lifetime”
Chapter renamed to “Version numbers of the documentation”
New fonts
Corrections
3.2.0 Chapter "Safety and instruction" revised
Operating temperature extended in chapter "Technical data"
Chapter "Service life" revised
Certificate removed
3.1.1 Certificate updated
3.1.0 In chapter "Technical data" corrosive gas test and footnote for corrosive environment added
3.0.0 Foreword changed to "Documentation notes" and "For your safety"
Added a link to certificate download page in chapter "Technical data"
"Maintenance and cleaning" and "Decommissioning" adapted
Appendix adapted and extended
2.3.0 Specification of overvoltage category added
Protection class III (SELV/PELV) added
Device type "Open equipment" added
Link in chapter “Actuality” updated
Utilization category DC-13 added
2.2.0 Notes on heights, fuses and wiring added
Notes on EN81 added
Notes added in section Intended Use
Chapter Identification (ATEX) updated
2.1.1 Technical data for permissible air pressure extended
2.1.0 Chapter on Address settings on TwinSAFE terminals with 1023 possible addresses updated
Links in technical data corrected
2.0.1 Links in the chapter Diagnostic LEDs corrected
2.0.0 Migration and structural adaptation
Reliability document updated
Safety parameters updated
Foreword revised
1.6.2 Block diagram updated
Numbering/table of contents changed
Description of the reaction times added
Reliability document updated
1.6.1 Certificate updated
1.6.0 Company address changed
Safety parameters extended
1.5.0 Extended temperature range added
Notes regarding temperature measurement and EMC added
Description of date code extended
1.4.1 Document origin added

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Beckhoff EL2904 Specifications

General IconGeneral
BrandBeckhoff
ModelEL2904
CategoryTouch terminals
LanguageEnglish

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