Disturbance in signal
What is meant by disturbance in a signal. We have some common alarms configured using DI card with AC450 controller. The signal is in alarm and its showing "DIsturbance" in red color in its object display. Is it fault in IO channel or any fault in the panel relay from where alarm is initiated ?
Asked 5 years ago
Answers
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Disturbance = in error
For DI its often the case that VALUE is not equal to NORM_POS (see picture)
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So when NORM_POS is equal to input, and you still have disturbance, what's the problem then?
Answered 2 years ago
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