BKN230-24-C-MP Communication and Power Supply Unit, AC 230 V - Belimo

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The Belimo BKN230-24-C-MP is a Communication and Power Supply Unit, AC 230 V .

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If you have any concerns about installation or size, please refer to the aforementioned Belimo bespoke datasheet. If you require more specialised support, email iacs.

Application: The BKN230-24-C-MP is installed together with the motorised fire or smoke extraction damper. This unit facilitates communication with higher-level systems while the built-in safety isolation transformer supplies AC 24 V voltage to the damper actuator. 

Communication: The unit can communicate either with the BKS24...-1B, ...-9A control modules via an analogue 2-wire system or digitally via a 2-wire connection to a BELIMO MP-Bus system. Switching between analogue operation and the MP-Bus is automatic. MP-Bus commands take priority, i.e. the BKS control module is deactivated as long as data communication is active over the MP-Bus. If MP-Bus communication is faulty, the unit switches over to analogue operation via the BKS after 60 seconds (e.g. as a back-up function); if no BKS is connected, the actuator goes into it’s safety position, that means, it will close the damper (timeout function). In MP-Bus mode, the BKN230-24-C-MP processes the standard MP-Bus commands specified by BELIMO for fire damper actuators. The wink button for assigning the bus address is accessible on the outside of the unit. If a bus address is not set, this pushbutton can be used to test the damper at any time. The damper actuator moves in the opposite direction to the current control command as long as the pushbutton remains pressed. The LED displays clearly show the motional sequence and indicate when the limit positions are reached. The damper movement can thus be tested locally without difficulty

Expansion options: A BAE..ST thermoelectrical tripping device and/or an optoelectronic smoke detector can be connected directly without any add-on devices. If a smoke or temperature alarm is tripped, the local damper immediately moves into the safety position and sends a message to the higherlevel system. 

It is also possible to connect more BKN230-24-C-MP (or BKN230-24) slave units. Please note that from actuators operated in parallel there are no position feedback signals available at the master actuator. Therefor this master-slave mode is recommended with certain limitations only.

DATASHEET