Voyager / Discovery / Nexus Control Panels. Panel is going 'crazy' showing random DADDR, RMVD, WTYPE, Fires Etc...
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Ответ:
This is a fairly common occurrence (especially in new installations) and is not normally a fault with the panel. The cause is usually an earth fault(s) on the system. The panel usually also shows an earth fault indication on the display. This can normally be verified by checking the power supply earth fault LED indication - that is if the earth monitoring is temporarily enabled on the power supply (usually by fitting a link).
An earth fault effectively causes data corruption and the panel cannot correctly decode the information from the loop causing random responses. Occasionally the earth fault is not so obvious and doesn’t show on the panel but is present on the loop. Apart from obvious cable shorts another common cause of earth related data corruption is from water ingress into cabling or detectors eg. a site may have had a leak in a ceiling etc.