Mandik FDMB Manual page 12

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2
3
4
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7
XT1
1
Jumper
2
Design with the communication and supply device BKN 230-24 and the actuating mechanism
BF 24-T-ST (BFL 24-T, BFN 24-T). It simplifies electrical wiring and interconnection of fire flap
valves. It facilitates on site check and enables central control and checks of fire damper by means
of a simple 2-conductor wiring. BKN 230-24 functions as a decentralized network device for
supplying the actuating mechanism BF 24-T-ST (BFL 24-T, BFN 24-T) with a spring back drive
on one hand and on the other hand it transmits the signal informing about the flap valve position
OPERATION and FAILURE through 2-conductor wiring to the central. Control command
SWITCHED ON - SWITCHED OFF from the central through BKN 230-24 goes through the same
wiring to the actuating mechanism.
To simplify the connection, the actuating mechanism BF 24-T-ST (BFL 24-T, BFN 24-T) is
equipped with connecting plugs that are inserted directly to BKN 230-24. BKN 230-24 is supplied
with a conductor and an EURO plug to be connected to the 230V mains. 2- conductor wiring is
connected to BKN 230-24 by means of terminals 6 and 7. If the drive is supposed to be controlled
without any signal from the central, it can be switched on by means of a bridge between the
terminals 3 and 4. A green LED pilot light on BKN 230-24 is on when voltage is present in the
drive (AC 24V). If the button on BAE 72-S is switched on or if the power supply (e.g. by a signal
from ELECTRICAL FIRE SIGNALISATION ) is disconnected, the damper position will be
"FAILURE".
XT2
XT1
1
Jumper
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XT2
4
3
2
1
1 2 S1
Tf1 LED
Tf2 Tf3
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4
3
2
1
1 2 S1 S2 S3 S4 S5
BAE72B-S
(BAT)
LED
Tf1 Tf2 Tf3
S2 S3 S4 S5 S6
BAE72B-S
(BAT)
S6