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ABB UniGear Digital User Manual

ABB UniGear Digital
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50 1VLG5 00007 E
The ALARM output of UL1TVTR1 function block should be connected to ensure failsafe opera-
tion in all circumstances. The WARNING output is always internally active whenever the
ALARM output is active. The WARNING in the receiver is activated if the synchronization
accuracy of the sender or the receiver is less than 4 μs. The output is held on for 10 s after the
synchronization accuracy returns within limits. The ALARM in the receiver is activated if the
synchronization accuracy of the sender or the receiver is unknown, less than 100 ms or more
than one consecutive frame is lost. The output is held on for 10 s after the synchronization
accuracy returns within limits.
Figure 68: Application Configuration tool logic examples for the SMV fail save operation

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ABB UniGear Digital Specifications

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BrandABB
ModelUniGear Digital
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LanguageEnglish

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