Use and installation manual
Page
85
of
97
(PVI-10.0/12.0-I-OUTD(-S)-400 Rev:1.3)
For this purpose, other equivalent devices found on the market may also be used,
however, since they have never been specifically tested, Power-One does not guarantee
the correct operation of the connection.
Please note that these devices may also require an external termination impedance, which
is not necessary for the AURORA PVI-USB-485_232.
The following diagram shows how to connect multiple units in a daisy-chain
configuration
.
Fig. 26 – Daisy chain connection
NOTE
:
when using an RS-485 connection, there may be up to 63 inverters
connected on the same connection. Choose any address between 2 and 63.
NOTE
:
when using an RS-485 connection, if one or more inverters are
subsequently added to the system, remember to switch the system inverter
switch back to the OFF position.
RTN +T/R -T/R
RTN +T/R -T/R
RTN +T/R -T/R
1
st
AURORA
2
nd
AURORA
Last AURORA
S2
switch
ON
S2
switch
OFF
S2
switch
OFF
RS-485 cable
max. length = 1.000mt
max. inverter nodes = 63
Block Diagram: RS-485 cabling
AURORA PVI-OUTD
PC with USB port
PVI-USB-485_232
USB to RS485 / RS232
Converter
RTN +T/R -T/R
(terminal block)
Data-Logger
RS485 port
RTN +T/R -T/R
(terminal block)
Off
Recommended RS-485 cable type:
LiYCY, 2x2x0.5mm (n.2
twisted pairs) + shield
RS-485 cable (1pair + 1
conductor) + shield