Belimo BKS24-1B Quick start guide

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 pressing the
“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.
Communication and Control Unit BKS24-1B
Dimensions
T
~
AC 24 V
Fault
SAFE damper
position
NORMAL
damper position
Connect via
safety isolating
transformer
!
2
10
1
5
Reset
Test
AC
24 V
BKS24-1B
6
4
3
7
8
Control
ON / OFF
Connections
interchangeable
optional external
pushbutton
9
11
2-wire conductor
to BKN230-24
a
b
Open
Close
Alarm
Reset
Test
Note: Relay contacts are shown without power applied.
Wiring digram
Power consumption 2.5 W
Auxiliary switches 6 A (2 A), AC 24 V
Protection class (safety low voltage)
Connection Submagnal connector 11 pole, suitable for ZSO-11 socket
(ZSO-11 plug socket not included, order separately!)
For wire sizing 3 VA
Nominal voltage AC 24 V 50/60Hz
Nominal voltage range AC 19.2...28.8 V
Technical data BKS24-1B
Maintenance maintenance free
Degree of protection IP 30
Ambient temperature range 0...+ 50 °C
EMC CE according to 89/336/EEC
Weight 150 g
Damper in the safe position
Causes / Sequence
No AC 24 V power supply
Signalling and diagnosis
LEDs
Alarm
Open Close
Contacts Description
OFF OFF OFF
ON ON ON
Test run ca. 35 s, triggered by: AC 24 V energising or by pressing
“Reset / Test”
flash
Status
OFF OFF
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
63
63
63
OFF OFF ON
Stored fault • Signal given that there has been a fault in the system and it
should be checked
63
flash
64
OFF OFF
Damper (actuator) moving to the safe position
OFF OFF 64
ON
flash
87
OFF OFF
Damper (actuator) moving to the operating position
OFF OFF 87
ON
Damper in the operating position
p0036707w0622810
35 20 70
ZSO-11 BKS24-1B
65
BKS24-1B
ZSO-11: Width = 38 mm
d0050810
BC
III

General notes
•The test will be interrupted if a fault occurs during the
test run. The LED “Alarm” flashes to signal a new
fault. The two LED’s “Open” and “Close” are dark
and the damper moves to the safe position .
Contact 6–3 (fault) is closed in this case.
•Anew test run can be started by pressing “Reset/Test”,
by issuing a reset command via terminal 5 or by
interrupting the AC 24 V power supply.
Triggering by:
Energising
of AC 24 V
power supply
Press “Reset/Test” when a new
fault occures ( LED “Alarm”
flashing) or when a fault is stored
(LED “Alarm” steady)
Start – Test sequence
A short unlocking pulse triggers the actuator au-
tomatically if it has been locked manually. So the
damper is moved to the safe position
All LEDs (Open, Close and Alarm) steady
Actuator moving to the operating position
Contact 6–3 (fault) remains closed
When the damper has reached the operating po-
sition , LED “Open” goes steady
All LEDs (Open, Close and Alarm) steady
LED “Alarm” flashes after
a delay and contact 6–3
(fault) is closed
Rectify fault in
system
Damper moves further towards the operating
position . LED “Open” flashes during motion
NO
YES
Actuator
reached switching
position
10°
LED “Close” steady,
i.e. damper in safe
position
LED “Open” steady,
i.e. damper in operating
position
Precondition:
No new faults!
(LED “Alarm” must not be flashing)
Damper in operating
position , LED “Open”
steady
Damper in safe position
, LED “Close” steady
Normal operation
Plant switch
(see Circuit diagram)
at “Control OFF”
Plant switch
(see Circuit diagram)
at “Control ON”
Damper moves to
operating position
Damper moves to
safe position
LED “Close” flashes
during the motion
LED “Open” flashes
during the motion
NO
LED “Alarm” flashes, i.e. a new
fault has occured (contact 6-3
closed)
If the end position is reached
later, LED
“Alarm” changes to
steady and contact 6–3 opens
YES
NO
YES
Actuator
reached switch-
ing position > 80º
within 320 s
Actuator
reached switch-
ing position < 10º
within 35 s
General notes
• If a fault in the system is detected during operation
the damper will move to the safe position imme-
diately. LED “Alarm” starts to flash in order to signal
a new fault and contact 6–3 is closed.
•When the fault has been rectified, the system can be
restarted by pressing “Reset/Test”, by injecting a
reset command via terminal 5 or by interrupting the
AC 24 V power supply.
• No new faults ( LED “Alarm” flashing) and no
stored faults (LED “Alarm” steady)
• Damper in operating position , i.e. LED “Open”
steady
Preconditions:
LED “Close” flashes
during the motion
Local activation
Periodic damper function test
External activation
Press and hold
“Reset/Test”
Activate Reset/Test com-
mand via terminal 5
Damper moves to
safe position
Damper moves to
safe position
LED “Close” flashes
during the motion
NO
Damper continues moving
to safe position and LED
“Close” continues flashing
Safe position reached
after ca. 20 s (spring-
return time) and LED
“Close” steady
YES
NO
YES
“Reset/Test”
command to ter-
minal 5 remains
activated
“Reset/Test”
remains
depressed
If “Reset/Test” is relea-
sed or the Reset/Test
command via terminal
5 is deactivated, the
damper will move back
to the operating posi-
tion
(LED “Open” flashes)
LED“Open”
flashes
during the
motion
Damper
moves
back to
operating
position
LED ”Open” steady signals damper in operating po-
sition
LED“Open”
flashes
during the
motion
Damper
moves
back to
operating
position
~
2
10
1
5
9
11
Reset
Test
AC
24 V
BKS24-1B
6
4
3
7
8
T
AC 24 V
Control
ON / OFF
Open Close Fault
eventual
fan enabling
Contact
from fire
alarm
system
Connections interchangeable
Open
Close
Alarm
Reset
Test
BKN230-24
Power supply
AC 230 V
1
2
3
4
5
6
7
a
b
BF(G)24-T-ST, BF..24-ST
M
BAE72-S
ENG-93001-93334-08.03-PDF • Subject to technical changes
Functional sequences / Typical wiring diagram
w0624810
BC