11
Actuating mechanism
BAT
BKN
BAT
BKN
Actuating mechanism
Design with the communication and supply device
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".
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
Summary of Contents for FDMA
Page 1: ......