Mandik FDMA PM Manual page 11

Design with the communication and supply device BKN 230-24 and the actuating mechanism
BF 24-TN-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-TN-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-TN-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 BAT 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".
Actuating
mechanism
BAT
Nominal voltage
Power consumption
Dimensioning
Protection Class
Degree of protection
Ambient temperature
Non-operating temperature
Connection - net
- motor
- terminal board
Actuating
mechanism
BKN
BKN
AC 230 V 50/60Hz
3,5 W (operating position)
11 VA (including actuating mechanism with spring return)
IP 40
-20°C ... +50°C
-40°C ... +80°C
cable 0,9 m with EURO plug type 26
6-pole connector, 3-pole connector
screw terminals for cable 2x1,5 mm²
11
BAT
II