Inverter Pcb - Samsung AHU Series Service Manual

5-2-4 INVERTER PCB

AC024JXADCH, AC030JXADCH, AC036JXADCH, AC042JXADCH, AC048JXADCH
2 1
①
Reactor-A1/B1
#Reactor-A2 : WHT
#Reactor-B2 : WHT
⑤
CN21-DAC/ENCODER
For S/W engineer debugging
Samsung Electronics
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3 4 5
6 7
② ③
Reactor-A2/B2
#Reactor-A2 : BLK #1 : RXD, #2 : TXD
#Reactor-B2 : BLK #3 : GND, #4 : DC 5V
#5 : DC 12V, #6 : INV. SMPS signal
⑥ ⑦
CN91-FAN2
#1 : DC 360V #1 : DC 360V
#2 : N.C #2 : N.C
#3 : GND #3 : GND
#4 : DC 15V #4 : DC 15V
#5 : FAN RPM #5 : FAN RPM
#6 : FAN RPM feedback #6 : FAN RPM feedback
8
④
CN50(2PIN/RED)-Communication CN22-Downloader
#1 : RXD̲ATARO, #2 : TXD̲ATARO
#3, #8 : N.C, #4~#7 : DATA signal
#9 : GND, #10 : DC 5V
⑧
CN90-FAN1 CN71-COMP.
#1 : COMP. U-phase(RED)
#2 : COMP. V-phase(BLU)
#3 : COMP. U-phase(YEL)
PCB Diagram and Part List
5-7