Bnu-Lw Wiring Order - LG BNU-LW Installation Manual

BNU-LW wiring order

BNU-LW wiring order
TP/FT-10
Fire detection sensor
(Use DC 12V or below)
[Wiring sequence]
1. Connect 485 communication line
- Pay attention to BUS A and BUS B polarity
(Refer to the G/W manual for DIP S/W
information for 485 G/W.)
2. Connect the Lonworks communication line
(TP/FT-10)
- No polarity.
3. Power supply (Select one from No. 1 or 2)
Use DC 12V adapter
- Connect to No. 6 jack from name of each
part.
Supply DC 12V to installation site
- Connect 12V and GND to No. 7 and 8
terminals.
12 Lonworks Gateway
LG does NOT supply this section ( Connection and Installation)
LonWorks
Adaptor
F1 F2 LAN LON PWR 12V GND
Power
4. Interface with simple central controller
- Set the DIP S/W No. 2 of the simple central
controller to ON and configure the setting
according to the rotary S/W address. (Refer
to setting part when connection to simple
central controller (page 20) for details.)
5. Connect fire detection sensor
- When the signal of DC 12 or below is
transmitted in case of a fire, the indoor unit
and ventilation product that is connected to
BNU-LW will all be turned off.
BMS Control (PC)
A
B
+10V
GND
PI485
terminal Central
controller
VOC
GND
C
D
LG supply
PI485
10V
GND
BUS_A
BUS_B