8
INSTALLATION INSTRUCTION
ENGLISH
To supply power to the central controller, supply it from the terminal block DC 10 V and GND ter-
minal of PI485 or the terminal block DC 12 V and GND of outdoor unit.
CAUTION
• For supplying DC10 V power from PI485, power supply is permitted up to 1 central con-
trollers per PI485. If power is supplied more than 1 AC Ez, failure may occur in operation
of the
AC Ez
.
• For expanding and connecting PI485 communication lines BUS_A, BUS_B up to 16
AC
Ez
s can be connected.
• Use the 0.75 Square Shield wires for connection wires between PI485 and
AC Ez
wires.
• Length of whole connection wires should be less than 1km.
!
ON
L1 2 3 4
KSDO4H
PI485
Multi V
AC Ez
PI485
VCC
10 V
GND
GND
BUS-A
BUS-A
BUS-B
BUS-B
AC Ez
Multi V
VCC
12 V
GND
GND
BUS-A
BUS-A
BUS-B
BUS-B
Method to Connect cable
1,MFL63284102(영어) 2015. 8. 10. 오후 2:08 페이지 8
