Wiring Of An Inverter With Rs485 At A Pc - SMA Sunny Boy 485PB-NR Kurzanleitung

SMA Technologie AG

Wiring of an inverter with RS485 at a PC

External
Power Supply
5
7
2
5
7
2
Short Description
Interface Converter
RS485 / RS232
DATA+
1
DATA-
2
+10V ... 30V DC
9
GND
10
10-pin terminal
on the interface
converter I-7520
Connect shield
to case
Photo Oper Betrie b
Photo voltai k-Stri ation
voltai c string ngwe chsel
inver richte Erdsc Earth hluss
ter r Fault
Failu Störu ng
re
Connect shield
to case
Betrie
Photo voltai Oper b ation
Photo voltai k-Stri ngwe
c string chsel richte Erdsc
inver ter r Earth hluss
Fault
Störu
Failu ng re
max. 50
inverter on
RS485 bus
Retrofitting the Communication Interfaces
I-7520
5
3
2
D-SUB 9 socket on
the interface converter
The last inverter on the
RS485 bus must be terminated.
This is done by mounting jumper
"A" on the system control board,
or by installing a 120 Ohm resistor
between connector "2" and
connector "7".
PB-NR-IXX073014
PC running
Sunny Data Control
5
3
2
I-7520
Page 25