Mandik FDMC Manual page 6

Design with the communication and supply device
Design with the communication and supply device BKN 230-24 and the actuating mechanism
BFL 24-T-ST. It simplifies electrical wiring and interconnection of fire damper. 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
BFL 24-T-ST with a spring back drive on one hand and on the other hand it transmits the signal
information about the fire damper 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 BFL 24-T-ST 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 BAT72B-S is switched on or if
the power supply (e.g. by a signal from ELECTRICAL FIRE SIGNALISATION) is disconnected,
the fire damper position will be "FAILURE".
Communication and supply device BKN 230-24 has to be placed near the damper. It is necessary
for easy connection of actuating system equipped by BKN 230-24 device.
BAT
BKN
Nominal voltage
Power consumption
Dimensioning
Protection Class
Degree of protection
Ambient Temperature
Storage Temperature
Connection - mains
- drive
- terminal board
Actuating mechanism
11 VA (including actuating mechanism)
Cable 0,9 m with EURO plug of 26 type
screw terminals for conductor 2x1,5 mm
6
AC 230V 50/60Hz
3,5 W (operating position)
II
IP 42
- 30 °C ... + 50 °C
- 40 °C ... + 50 °C
6 pole plug, 3 pole plug