Belimo BKS24-1B Wiring Diagram

B C
Wiring digram
Connect via
AC 24 V
! safety isolating
transformer
Reset
Test
optional external
2-wire conductor
Connections
interchangeable
to BKN230-24
Note: Relay contacts are shown without power applied.
Signalling and diagnosis
LEDs
Contacts
Status
Alarm
Open Close
OFF OFF OFF 6 3
ON
ON ON
6 3
OFF OFF 6 3
flash
OFF OFF 6 3
ON
OFF flash OFF 6 4
OFF
OFF ON 6 4
flash OFF OFF
8 7
ON
OFF OFF 8 7
Technical data
Nominal voltage
Nominal voltage range
For wire sizing
Power consumption
Connection
Auxiliary switches
Protection class
Degree of protection
Ambient temperature range 0...+ 50 °C
EMC
Maintenance
Weight
Communication and Control Unit BKS24-1B
2
AC
24 V
10
Control
ON / OFF
1
5
pushbutton
a 9
11
b
Reset
Test
Description
Causes / Sequence
No AC 24 V power supply
Test run ca. 35 s, triggered by: AC 24 V energising or by pressing
"Reset / Test"
New fault, possible causes: • Short-circuit or open-circuit in 2-wire conductor
or damper fault (BKN...) • No AC 230 V • Defective thermal trip • Smoke
detector triggered • Running time exceeded • Damper jammed
Stored fault • Signal given that there has been a fault in the system and it
should be checked
Damper (actuator) moving to the safe position
Damper in the safe position
Damper (actuator) moving to the operating position
Damper in the operating position
BKS24-1B
AC 24 V 50/60Hz
AC 19.2...28.8 V
3 VA
2.5 W
Submagnal connector 11 pole, suitable for ZSO-11 socket
(ZSO-11 plug socket not included, order separately!)
6 A (2 A), AC 24 V
(safety low voltage)
III
IP 30
CE according to 89/336/EEC
maintenance free
150 g
BKS24-1B
6
SAFE damper
4
position
3
Fault
NORMAL
7
damper position
8
Open
Close
Alarm
Control and monitoring of
motorized fire and smoke dam-
pers in combination with the
Communication and Power
Supply Unit BKN230-24
Mode of operation
The BKS24-1B unit receives status infor-
mation about the fire and smoke damper
and issues control commands to it via
the Communication and Power Supply
Unit BKN230-24.
LEDs on the front of the unit signal the
operating status of the damper and the
presence of faults anywhere in the
system.
Floating auxiliary contacts allow the
unit to be linked into higher level systems
(such as damper end position indicators,
fault alarms, fan enabling, etc.).
Function testing of the fire and smoke
damper systems by
"RESET/TEST" pushbutton.
Accessory
ZSO-11 plug socket suitable for 35 mm
DIN rail mounting.
Detailed functional sequences see
over.
Typical wiring diagram see over.
Dimensions
BKS24-1B
BKS24-1B ZSO-11
20
35
ZSO-11: Width = 38 mm
pressing the
70