Installation Manual
38
B
A
A4 B4
120
Ω
Logger
PC
Net
USB
RS232
Net
USB
RS232
4
3
2
1
RS485
A2
B2
Inverter
B
A
B
A
...
Inverter
Inverter
Shielding layer
Top
：
A1-A2
Bottom
：
B1-B2
RS485/232 converter
+serial port cable
Serial port cable
USB cable
Internet cable
Fig. 7-9
RS485 communication for multiple inverters
Logger is an optional device. Users can order it from Sungrow. For more
information
on
Logger,
download
related
documentations
at
When there is more than one inverter in the PV plant, each monitoring system
of the inverter should be equipped with a Logger. The monitored data will then
be transferred to the general monitoring room.
Running data and other information on the inverter are finally uploaded to the
Insight/iSolarCloud server via the Logger.
Users can monitor the inverter locally via the Insight monitoring system or monitor the
inverter remotely via the iSolarCloud.
Connection procedure
Step1
.. Strip off the two cables connected to the same connection terminal.
Step2.
Insert the stripped copper into the bootlace ferrule and tighten it with crimping pliers.
Step3
. Connect the bootlace ferrule to the communication terminal.
Step4.
Twist the shielding layers of the two cables into one, cover it with heat-shrinkable tubing,
and insert it into the bootlace ferrule.
A
B
FG
Fig. 7-10
Terminal crimping
