LG ATNH126ELFB Service Manual page 47

Control Devices and Function
I 2 OR MORE SIMPLE CENTRAL CONTROL CONNECTION
OUTDOOR
MAIN PCB
BUS
B
BUS
A
GND
+10V
D
Outdoor unit 1
OUTDOOR
MAIN PCB
BUS
B
BUS
A
GND
+10V
D
Outdoor unit 2
PI485 setting method(LG Aircon Network unit)
I Settings method of
ON KS DO 4H
L1 2 3 4
ON KS DO 4H
L1 2 3 4
• Function of LG Network
- It is possible to connect the network of LG air conditioners and to connect various contents of the network
system, which is simple, deluxe and PC central control.
- Please refer to "LG Control System Manual" about the detail functions and the products possible to network.
- As the Interface for networking, PNF-P14A0M/R/C is applied.
80 Synchro Air Conditioner
INDOOR UNIT 1
INDOOR UNIT 2
INDOOR UNIT 3
INDOOR UNIT 4
INDOOR UNIT 5
INDOOR UNIT 6
Vcc GND C
CN-POWER
GND
CN-POWER
CN-COM A
S2 S4
S1 L
LED2
LED3 LED4
IC1P S5 S3
+ S6 + +
+
LED5 LED7 LED8
S9 S10 S11 S12
+ + +
LED9 LED10 LED11 LED12
+ + S14 + S15 + S16
LED16
LED13 LED14 LED15
PWB:6870A10001A
C GND VCC ASM:6711A20005E
+ S15 S18
LED17 ON KSDO4H
L1 2 3 4
S19
Master Mode Group Number 0
INDOOR UNIT 1
INDOOR UNIT 2
INDOOR UNIT 3
INDOOR UNIT 4
INDOOR UNIT 5
INDOOR UNIT 6
Vcc GND C
CN-POWER
GND
CN-POWER
CN-COM A
S2 S4
S1 L
LED2
LED3 LED4
IC1P S5 S6 S3
+ + + +
LED5 LED7 LED8
S9 S10 S11 S12
+ + +
LED9 LED10 LED11 LED12
+ + S14 + S15 + S16
LED16
C GND VCC LED13 LED14 LED15
PWB:6870A10001A
ASM:6711A20005E
S18
+ S15
LED17 ON KSDO4H
L1 2 3 4
S19
Master Mode
Group Number 0
TPS Inverter Multi Type
1 ON + All OFF : Connection of "TPS Inverter Multi Connection + General Central
Controller" Case.
1,4 ON + All OFF : Connection of
Central Controller applied 「LGAP」" Case.
* LGAP : LG Air conditioners Protocol
<Group Number 0>
D
Master
DIP SWITCH
CN-COM B
TX1
1. Adhere the PI485 Module(For connecting central control) to the Control Box.
2. Connect the PI485 Module to central control.
3. In the case of connecting two more than central control, set the Master/Slave mode
and then connect each communication lines(C,D) <Refer to above fig>.
*Special purcharse: Central control(P/No.:4995A20105F),
PI485 Module(PNF-P14A0M)
* It can be added to 15 Central controls for the slave control.
<Group Number 1>
D
Slave
CN-COM B DIP SWITCH
TX1
Selection of product
unit type
ON KS DO 4H
L1 2 3
"TPS Inverter Multi Connection +
Note
001
Group No.
Indoor No.
Selection of network type
4