9
lindab | we simplify construction
Smoke Control Damper
SDR
2
-M
Lindab reserves the right to make changes without prior notice
Last modified: 2021-10-26
Rev: 2021-03-26
Fig. 11
Damper with actuating mech. and BKNE230-24
To simplify the connection, the actuator is equipped with
plug connectors that plug directly into the BKNE 230-24.
The actuator, communication and power supply device
BKNE 230-24 are mounted in an insulated cover, they are
accessible after removing the cover. The electrical connec-
tion of the actuator and the BKNE 230-24 communication
and power supply device is made with a non-flammable
cable (or a cable located in an adjoining cable duct), the
two-wire BKNE 230-24 cable should be connected to ter-
minals 6 and 7. It is also recommended to use cable, which
is used for fire signalling network. The cables pass through
an opening made in the wall of the insulated cover when
installing the damper or when connecting the actuator
power cable. The cable entry must meet a minimum fire
resistance of 30 minutes.
For more information on actuators and devices, see the
Belimo catalogue.
This variant is not available for dampers with Schischek
InMax50.75-S actuator.
2.2. Design with communication and supply device
BKNE 230-24
Design .66
Design with communication and power supply device
BKNE 230-24 and with actuator BEN (BEE, BE)-ST for 24V.
The BKNE 230-24 serves on the one hand as a decentral-
ized network device for powering the actuator and on the
other hand transmits the signal of the communication and
control device BKSE 24-6.
It simplifies electrical installation and connection of damp-
ers. In the meantime, it facilitates “on-site inspection” and
allows central control and inspection of dampers using a
simple 2-wire line.
The BKNE 230-24 transmits the "OPEN" / "CLOSED"
damper position (switches in the actuator) and fault
messages to the BKSE 24-6. It also receives commands
from the control device and controls the adjustment of the
actuator to the desired position. The last control command
will be retained even after a temporary network failure.
The BKNE 230-24 controls the switching position of the
actuator, its adjustment time and the data exchange with
the BKSE 24-6. In addition, it controls the actuator current
(actuator connection) and the power supply.
Actuating mechanism
BKNE230-24
Fig. 10
Actuator BELIMO BE 24-12(-ST)
