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000566AG
5 - Installation
C
onnection of RS485 PC serial communication line
The RS485 PC serial communication line on the communication and control
signal terminal block
21
is reserved for connecting the inverter to advanced
configuration software or
monitoring devices that communicate with the
proprietary "Aurora" communication protocol.
Connection of the REACT to advanced configuration software consists
of first connecting all the units in a chain in the “daisy-chain” (“in-out”)
configuration, respecting corresponding signals of the RS485 PC serial
line, and then activating the communication line termination resistance
in the last element in the chain by setting the switch for RS485 PC line
termination
18
(to the ON position).
The communication line must also be terminated on the first element of the chain which
usually corresponds to the monitoring device.
RS485 PC
REACT
POWER
ALAR
M GF
I ES
C UP
DOW
N ENTE
R
REACT-UNO
REACT-B
ATT
REACT
POWER
ALAR
M GF
I ES
C UP
DOW
N ENTE
R
REACT-UNO
REACT-B
ATT
REACT
POWER A
LARM G
FI
ESC
UP
DOWN
ENTER
REACT-UNO
REACT-B
ATT
RS485 > USB
Software
“Aurora
Manager”
RS 485 • HALF DUPLEX
RESET
TX/
RX
PWR
OK
RTN
RX/
D-
TX/D+
N.C.
USB
B-T
ype
RS232/RS48
5
PVI-USB
-RS232_485
RS232/485
Se
l.
=RS232
=RS485
RESET
TX/RX
PWR OK
USB
B-Type
RS232/RS485
RS232/485 SEL.
RS232
RS485
RTN
RX/D-
TX/D+
N.C.
PVI-USB-RS232_485
18
When connecting a single inverter to the monitoring system, activate the
communication line termination resistance by setting the switch for RS485
PC line termination
18
(to the ON position).
Set a different RS485 address on each inverter of the chain. An address
can be chosen freely from out of 1 to 63.
The inverter address is set using the display and the keyboard (see the
specific chapter).
When an RS-485 connection is being used, if one or more inverters
are added to the system at a later time, it is necessary to remember to
reset to OFF the switch on the termination resistance being used by the
inverter which previously was the last in the system.
Each inverter is supplied with one (1) preset RS485 address and with an
RS485 PC line termination switch
18
in the OFF position.
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