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The supply voltage is connected to poles 1 and 3 of connector X1. The DC voltage polarity does not matter.
The supply voltage limit values are:
24V DC (22 - 36V DC) or
24V AC (18 - 27V AC RMS)
Power consumption 140 mA max.
The connection of the earth conductor is necessary in terms of the EMC characteristics of the system.
For the alarm output, either an opening or closing contact can be selected:
Terminal blocks X2: 11 and X2:9, contact open in alarm mode
Terminal blocks X2: 11 and X2:10, contact closed in alarm mode
Maximum contact load is 120 VAC/DC, 1A