10
TPM 075/09
2.3.
Design with the communication and supply device
Design .60
Design with the communication and supply device BKN 230-24 and the actuating mechanism
BF 24-T-ST (BLF 24-T-ST). 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 (BLF 24-T-ST) 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 (BLF 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 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".
Fig. 18
Design with the communication and supply device
BAE 72B-S
BKN
BAE 72B-S
BKN
Tab. 2.3.1. Communication and supply device BKN 230-24
Communication and supply device
BKN 230-24
Nominal voltage
AC 230 V 50/60Hz
Power consumption
3,5 W (operating position)
Dimensioning
11 VA (including actuating mechanism with spring return)
Protection Class
II
Degree of protection
IP 42
Ambient temperature
Non-operating temperature
- 20 °C … + 50 °C
- 40 °C … + 80 °C
Connection - net
- motor
- terminal board
cable 0,9 m with EURO plug type 26
6-pole connector, 3-pole connector
screw terminals for cable 2x1,5 mm
2
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