LG PHNFP14A0 Installation Manual page 4

Part Description
PSNFP14A0
PI485 GATEWAY(R)
1
BUS_B: RS-485 (-) Terminal
2
BUS_A: RS-485 (+) Terminal
3
Reset Switch: PI485(R) Reset
4
LED01G,02G,03G: Communication Status LED
5
LED1: RS-485 Communication Status LED
6
CN_OUT: Indoor Unit Connector
7
DIP Switch: Product Selection (Refer Page 8~10)
6 485 Gateway(C, R)
Installation Guide
Installation Steps (PHNFP14A0/PSNFP14A0)
7
1. Select DIP Switch Configuration(Refer page 8 ~ 10)
7
1 2
2. Connect RS-485 BUS_A(+), BUS_(B)(-) with other network products (ex.
Simple Central Controller , ACP.....)
6
3. Connect CN_OUT with Indoor Unit by the cable (provided)
4
4. Check the Communication Status LED
- LED1G(Red)
• OK operation : LED blinks for 5 times and then gets OFF
2
• NG operation : Check the Indoor Unit°Øs address & wiring connections
1
- LED2G(Yellow), LED3G(Orange)
• NG operation : Check the DIP Switch setting & wiring connections
5. 5 Check RS-485
6
n OK operation :
(1) LED blinks when PI485 receives data from central controller.
5
n NG operation : Check the wiring connections
3
6. Finally if all of the above steps are OK then tie the cables by tie wraps & clamp
4
This process is repeated after every 3 minutes
Installation Guide
Installation Manual 7