LSI LASTEM M-Log – User’s manual
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This logic is joinable with other logics in
AND
mode, for example to allow the alarms activation
only in specified hours of the day.
5.5.7
Snow level alarm
(Logic used only for M-Log with terminal board inputs – ELO007 and ELO008 series)
The logic detects excessive snow fall conditions in indeterminate time period; the alarms condition
stays active during programmable time; at the end of this alarm period the snow level starts to be
counted from the actual level; if during the alarm condition the snow level decreases (owing to
melting or autocompression), the snow level start value (used like reference value in the next delta
calculation) updates accordingly. Can be set:
The measure that samples the snow level;
The maximum delta (centimeters), over that the system goes in alarm condition;
The alarm duration before its automatic reset.
5.5.8
System error
The logic sets an alarm when the instrument detects and internal malfunction. All errors are
detected as specified in §
Errore. L'origine riferimento non è stata trovata.
.
