Busch-Jaeger 6411 U-101 Betriebsanleitung Seite 71

Operation ENG 71
c. Operation via extensions
All types of signal generators are suitable that generate a
230 V signal (no permanent signal) for extension units "1"
and "2" (see fig. 1).
Operation depends on the respective range of function of
the extension and on the selected mode of operation.
The flush-type insert interprets short voltage pulses as
"short actuation (tapping)" and long voltage pulses as "long
actuation".
Note about priorities of operation
The glass break detector has the highest priority. On
triggering, the extension inputs are switched off. The
shutter is moved downwards and can only be moved
upwards again by local operation.
The extension unit input ↑2 for UP has second highest
priority (wind alarm). If the input is powered, the shutter
moves up and stays up as long as extension unit ↑2 is
powered. All other operations have an equal ranking.