Lumel ND20 - Remaining Types of the Alarm

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b) n-off
c) On
d) OFF
Fig. 9. Alarm types: a),b) normal c) enabled d) disabled
Remaining types of the alarm:
– H-on – always enabled;
– H-oFF – always disabled,
– A3non – when the “n-on” alarm type occurs on any of the phases
– the relay switches on and the corresponding symbol is illuminated
(AL1 – phase 1, AL2 – phase 2, AL3 – phase 3). When all alarms
fade away, the relay switches off.
– A3nof – when the “n-off” alarm type occurs on any of the phases
– the relay switches on and the corresponding symbol is illuminated
(AL1 – phase 1, AL2 – phase 2, AL3 – phase 3). When all alarms
fade away, the relay switches off.