Installation and Operation Manual
12
5.5 Wiring
Remove wiring cover in the inverter, you will see below shown
connection ports:
DC
Input
Connector for DC input, the polarity sequence is
positive, negative (+,-). Please find label with polarity
markers.
RS-232
RS232 communication interface
DC
Switch
To connect or disconnect “+” and “-” of PV array
input (option)
RS-485
RS485 can be connected with PC via RS485/RS232
adaptor, or connected with monitoring software via a data
logger in the form of daisy chain.
AC Output Connector for AC output, they are L, N and PE lines
Attention:
1.
The wire connection can only be done after the inverter is fixed in
proper position on the wall.
2.
Make sure the Max. open circuit voltage and short circuit current of
solar arrays are not exceeded the stipulated range of the inverter.
3.
Select the inner diameter of 12AWG (4mm
2
) and the outer
diameter of Φ6mm of the photovoltaic cable as the connecting line
of the PV input terminal. Select the inner diameter of 12AWG
DC Input
DC
Switch
AC
Output
RS-232
RS-485