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INSTALLATION MANUAL
AIR
CONDITIONER
Please read this installation manual completely before installing the product.
Installation work must be performed in accordance with the national wiring standards
by authorized personnel only.
Please retain this installation manual for future reference after reading it thoroughly.
ACU IO
Original instruction
[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
MFL62179522
Rev.01_042419
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
www.lg.com
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Summary of Contents for LG PEXPMB300
- Page 1 ACU IO Original instruction [Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA www.lg.com MFL62179522 Rev.01_042419...
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Page 2: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product. WARNING It can result in serious injury or death when the directions are ignored. - Page 3 IMPORTANT SAFETY INSTRUCTIONS • Request to the service center or installation specialty store when reinstalling the installed product. It will cause fire or electric shock or explosion or injury. • Do not disassemble, fix, and modify products randomly. It will cause fire or electric shock.
- Page 4 IMPORTANT SAFETY INSTRUCTIONS • Do not touch the board when the power is connected. It can cause a fire, electric shock, explosion, injury and problem to the product. • Unplug the unit if strange sounds, smell, or smoke comes from it.
- Page 5 ACU IO SPECIFICATION ACU IO SPECIFICATION Components PEXPMB300 PEXPMB200 PEXPMB100 (ACU.UIO) (ACU.UO) (ACU.UI) ACU.UIO (1 EA) ACU.UO (1 EA) ACU.UI (1 EA) Installation Manual (1 EA) Installation Manual (1 EA) Installation Manual (1 EA) NOTE • This model requires external power supply (DC 12 V) (Select an insulating transformer that complies with IEC61558-2-6 and NEC Class 2.)
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Page 6: Part Description
ACU IO SPECIFICATION Part Description PEXPMB300 (ACU.UIO) PEXPMB200 (ACU.UO) PEXPMB100 (ACU.UI) RS485 UNIVERSAL INPUT RS485 ANALOG OUTPUT RS485 DIGITAL INPUT RST_2 RST_2 RST_2 SW01 SW02 SW01 SW02 SW01 SW02 RST_1 RST_1 RST_1 CN_UART CN_UART CN_UART RS485 ANALOG OUTPUT DIGITAL OUPUT... -
Page 7: Installation Method
Installation Method When installing the ACU IO, please fix and install using Din Rail (Example of Installation) Din Rail It should be setting address. (Address Setting : SW02) Model PEXPMB300 (ACU.UIO) Model PEXPMB200 (ACU.UO) Model PEXPMB100 (ACU.UI) DIP S/W No. - Page 8 ACU IO INSTALLATION Wiring PEXPMB300 (ACU.UIO) PEXPMB200 (ACU.UO) PEXPMB100 (ACU.UI) Universal Input (Analog / Digital) From From From Analog Output Digital Input Master Unit Master Unit Master Unit G #1 #2 #3 DC 12 V DC 12 V DC 12 V...
- Page 9 ACU IO MEMORY MAP Appendix 1 ACU IO MEMORY MAP Baud Rate : 9 600 bps Stop Bit : 1 stop bit Parity : None Parity ACU.UIO Coil Register (0x01) Register Data Bit Funtion DO #1 0: Open / 1: Short DO #2 0: Open / 1: Short SEL #1...
- Page 10 ACU IO MEMORY MAP Appendix 1 Holding Register (0x03) Register Data Bit Funtion 40001 AO #1 0~1000 (0.0~10.0 V) 40002 AO #2 0~1000 (0.0~10.0 V) 40003 AO #3 0~1000 (0.0~10.0 V) 40004 AO #4 0~1000 (0.0~10.0 V) ACU.UI Coil Register (0x01) Register Data Bit Funtion...