Sungrow SG5KTL-MT User Manual page 43

User Manual
The communication accessory port can directly connect to communication modules
produced by SUNGROW, such as GPRS, WiFi, or E-Net, for which, refer to the section
"5.7 GPRS Communication System (Optional)"
Communication System
communication accessory port can connect to other communication devices, such as
Logger.
The RS485 communication port is configured to connect Smart Energy Meters, for
which refer to the section
the port can be used for communications between inverters connected in the daisy
chain manner.
Not inverters of all types can be connected via the RS485 cable in the daisy
chain manner and communicate with each other. Contact SUNGROW to
ensure that the purchased devices support communications between multiple
inverters before connecting them in the daisy chain manner.
Proceed as follows to connect other external communication devices to the
communication accessory port via the RS485 communication cable.
step 1 Strip the insulation layer of the communication cable with an Ethernet wire stripper, and
lead the corresponding RS485A/B signal cables out.
table 5-2 Pin definitions of the RJ45 plug
R R J J 4 4 5 5 c c o o n n n n e e c c t t o o r r
TIA/EIA 568A
TIA/EIA 568B
Pin 1 and pin 2 are configure to supply power for communication modules.
Never connect or use these two pins when preparing the RS485
communication cable. Otherwise, damage can be caused to inverters or other
devices connected through the communication cable.
(Optional)". Alternatively, via RS485 communication cable, the
"5.9 Smart Energy Meter Connection
f f i i g g u u r r e e 5 5 - - 2 2 RJ45 plug
P P i i n n C C o o l l o o r r
3 White-orange
6 Orange
3 White-green
6 Green
5 Electrical Connection
and the section "5.8 Ethernet
(Optional)". In addition,
D D e e s s c c r r i i p p t t i i o o n n
RS485- B
RS485+ A
RS485- B
RS485+ A
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