Serial Communication Connection (RS485)
There are two RS485 communication lines on the inverter:
PC - dedicated line connecting the inverter to monitoring devices which
use the proprietary communication protocol “Aurora” or to carry out
rmware conguration and update operations using the conguration
software “Aurora Manager LITE”.
The line can also even accept power management controls.
PMU (power management unit) - dedicated line for the commands used
for inverter power management by the power distributor in the country
where the inverter is installed or to connect the inverter to monitoring de-
vices that use the “ModBus RTU” communication protocol. The commu-
nication protocol can be set up using the display menu “SETTINGS>PMU
RS485”.
This line must not be used to carry out rmware conguration and update
operations using the conguration software “Aurora Manager LITE”.
Cables connecting the RS485 line (PC) and RS485 line (PMU) may use
two different types of connection:
• Connection of the conductors using the terminal connectors a11
(+T/R, -T/R, GND COM and SH)
The LNK connection must be used for connecting the shielding boot(s)
of the cable(s).
• Connessione dei conduttori con connettori RJ45 a12
The RJ45 connectors (A) and (B) available for the RS485 communica-
tion, are equivalent to each other and can be used interchangeably for
the arrival or for the output of the line in realising the daisy chain connec-
tion of the inverters.
The same is true for connections made using the terminal connectors
a11.
CARD
J10
PC
OFF
TERM.
120
OFF
J8
ON
PMU
S2
S4
ON
PC
PMU
J9
PMU -T/R
J6
CARD
COM
PMU +T/R
GND COM
+5V OUT
R ON/OFF
J4
PC
SH
J7
PC +T/R
PC -T/R
GND
RTD3
RTD3
24V
-WTACH
J5
+WTACH
PT100
RTD2
RTD2
PT1000
J3
J2
PMU
CR2032
A2
COM
A2
RTD1
RTD1
A1
A1
COM
S6
NORM
S3
S7
COUNTRY/LANG SEL
K1
S8
MEMORY
ALARM
NC
C
BT1
NO
S5
PAR IND SERV
A1
J16
J14
J11
AN2 AN1
V
mA
V
mA
S1
IN
OUT
IN
OUT
PMU
(A)
PMU
(B)
PC
(A)
PC
(B)
PMU -T/R
PMU +T/R
GND COM
+5V OUT
R ON/OFF
SH
PC +T/R
PC -T/R
a11 a14a16
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