Technical Data Sheet FSC-UFC24
Page 7 of 18
November 2017
Technical changes reserved
www.smtec-ag.ch
Thermoelectric
Tripping Dev.
Connection with specified
RS-485 cable only (see page 4)
Modbus RTU or BACnet MS/TP
dip switch selectable
Main 24V AC/DC
Daisy Chain
from and to other FSC-UFC24
Analog Output
Signals the status
of the FSC-UFC24
A
B
Coms
C
R1 C
Power In
Power Out / Damper
DAMPER OUT
Power
Close
Status
TX
RX
Open
Error
ADDRESS
CONF
Test
Button
ON
1 2 3 4 5 6
8
7
4
1
1
5
3
2
2
6
R1 C
+2
4
-2
4
D
I2
C
D
I3
C
C
ON
1 2 3 4 5 6
8
7
1
C
2
D
I1
C
A
O
1
C
Power to Actuator
Fire Application:
1-Open C–Common
Smoke Extr. Application:
Configuration FSC-UFC24
Modbus/BACnet addressing
1-Close C-Common 2-Open
12
0
Ώ
AMP Plug in
parallel
Conventional Application
Digital input for manual override
Can be selected via bus as
“Normally Open” (=standard open) or
“Normally Closed” (=standard closed)
Default = “Normally Open”
Position of line termination
120Ω if FSC-UFC24 is last
Modbus or BACnet device in line
Smoke Detector
24VDC – Power supply – max 25mA
Digital input – 24V
Can be selected via bus as
“Normally Open” or “Normally Closed”
Default = “Normally Closed” – factory
production short
Thermoelectric Tripping Device
Digital input – dry contact
Factory production – short
When contact open – damper closes
Contact open
Contact closed
S1 S2 S3
S4 S5 S6
General Information
Main Power – FSC-UFC24
The FSC-UFC24 is dual power 24V AC/DC.
The actuator has to be 24V AC and/or DC. Meaning it has to operate with the same voltage (AC or DC) as the
FSC-UFC24. There are 2 terminals for the power, in order to make the daisy chain connection for the installer
easier.
The polarity must be respected when connecting multiple FSC-UFC24 to one power source
(phase to phase, com to com)!
R1
Com
Power In
Power Out
R1
Com
R1
Com
Power In
Power Out
R1
Com
R1
Com
Power In
Power Out
R1
Com
R1
Com
Power In
Power Out
R1
Com
Actuator
24VAC/DC
Actuator
24VAC/DC
Actuator
24VAC/DC
Actuator
24VAC/DC
24VAC/DC
Electrical Installation
Power Supply
