Controller Setting Method - LG PRDCA0 Installation Manual

COMMUNICATION KIT INSTALLATION
18

Controller Setting Method

Capacity controller
! CAUTION
- DI requires non-voltage contact
- DO provides relay output (max : 250Vac 1A)
- AI : 0Vdc ~ 10Vdc
- RS485 port : Connect to INTERNET A/B on ODU's main PCB
1 Actually only AHU controller controls or regulate SA temperature, we
Analog Input :
only increase or decrease capacity of ODU
_V.
2
Digital Input : Acquires the control value of AHU operation from DDC(Field supply).
3
Digital Output : Send the condition value of AHU operation to DDC (Field supply).
4
RS485 : Sends the On/Off signal taking from DDC to the indoor & outdoor unit and send the
condition value taking from indoor & outdoor unit to DDC with On/Off Output.
① Rotary S/W
This S/W is for setting up the address of
AHU Comm. Kit (00 ~ FF).
Example) AHU Comm. Kit address is '0C' .
0
3 4 5
2
6
1
7
8
0
9
F
A
E
B
D
C
SW_GRP
Communication port
(1ch, RS485)
Power(DC 12V) Digital Input(5ch)
SW_IO
SW_SPARE SW_GRP
C
3 4 5
2
6
1
7
8
0
9
F
A
E
B
D
C
SW_IO
Reset
Button
Rotary S/W
(3EA)
Digital Output(7ch)
and Comp. capacity of MULTI
SW_TYPE
This S/W is for setting up the
temperature from AHU Comm. Kit.
Detail information refer to the 20 page.
Analog Input(2ch)
DIP S/W(SW03)
DIP S/W(SW01)