25
12.8 Fire door system
4
3
2
1
LED
NC
NO
C
4
3
2
1
LED
NC
NO
C
+24V out
GND
Impulse
input
Not in
use
Locking
circuit
GND
1
2
3
4
5
6
7
8
9
10
Fire
detector
gray
blue
green
white
red
OPERATION:
When the
fi
re detection system reacts, it’s relay switches on. Then the GND (-) is
disconnected from the operator’s control unit (connector 2). The operator doesn’t open the
door from impulse but it can be opened manually. The door closer of the operator closes
the door after manual opening.
Detection activation ->
The door closes
Power failure
->
The door closes by spring
After detection activation, one manual opening is required to re-energise the operator to
chosen program selector mode.
Adjust the
lock delay to
minimum
Motor lock
EL490/EL590
A mechanical door coordinator is needed to
ensure correct closing in double
fi
re doors!
Summary of Contents for DA461
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