Sungrow SG5KTL-MT User manual

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 1 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Connection and Commissioning Quick Guide for 3-
Phase Residential and Commercial Inverters
Disclaimer
The material in this document has been prepared by Sungrow Australia Group Pty. Ltd. ABN 76
168 258 679 and is intended as a guideline to assist solar installers for troubleshooting. It is not a
statement or advice on any of the Electrical or Solar Industry standards or guidelines. Please
observe all OH&S regulations when working on Sungrow equipment.
Applicability: SG5KTL-MT, SG10 KTL-MT, SG15KTL-M, SG20KTL-M
Notes:
This quick guide is to be read in conjunction with the Sungrow’s User Manuals and 3 -
phase KTL series inverters as example for demonstration.
When more than one inverter is installed, all the commissioning is done via the Logger
1000.
All of the components are connected via daisy-chain RS485 as per standard RS485
topology.
For export control and load consumption, a 3-phase energy meter needs to be
connected.
Default baud rate is 9600 of the energy meter and this can be changed if necessary,
by entering “System/Interface/RS485” in the Logger1000.
Shielded twisted pair with a minimum CSA of 0.75mm should be used, and the
maximum total length of the cable is 1,200m (120 Ohm resistor should be terminated).

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 2 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Overview
Schematic layout of equipment to the logger1000 –RS485 wiring.
Logger 1000
3-Phase meter
Inverter 1
Inverter 2

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 3 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
RS485 wiring
The RS485 is connected by RJ45 at the inverter end, and terminated cable at the
logger end.
Connect the RJ45 plug to the front Com port via the supplied shroud.
Plug into the front Com port on the inverter (Terminal 2).

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 4 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Inverter connection to Logger1000
Connect the RS485 comms from the inverter(s) via A1/B1 and the energy meter via
A2/B2 to the Logger1000.
On the logger1000 side, A1 and B1 are terminals to connect with the inverter which
display ascom1 on the Logger1000 web portal; A2 and B2 arethe terminals to connect
with the energy meter, they are shown as com2 on the portal.

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 5 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
If the RS485 is long, or if you have communication issues, you can connect one of
the 120 Ohm resistors across the A and B terminals at the Logger1000.
120 Ohm resistors supplied in Logger kit

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 6 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Daisy-Chain connection:
In the case where daisy-chain RS485 is preferred, this can be accomplished by using
a 3rd party unction box.
*Never connect the meter to the same RS485 terminals as the inverters.
Energy Meter Connection
For installations where the supply is larger than 80 Amps - the site electrician will need
to calculate the CT ratio required as per the installation. The CT ratios can be set by
accessing the DTSD1352 energy meter menu. Please refer Meter Selection Guide for
reference.
For supplies smaller than 80 Amps, use the DTSD1352 with inbuilt CT’s
Default Modbus address is 254 and the secondary current of CT should be 5A.
Logger 1000
RS485 A
RS485 B
RS485 A
RS485 B
3-Phase meter
Inverter 1
Inverter 2

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 7 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
The corresponding pinouts to RJ45 are Pin 3 (White-green) to RS485- B and Pin 6
(Green) to RS485+ A:
Terminal 21 to Green cable (RS485+ A) and terminal 22 to White-green cable
(RS485- B) on the DTSD1352 energy meter side. The following figures shows the
meter cable connection on the eneryg meter side.
Connect to Logger1000 via the RS485 cable from the energy meter on RS485 port A2
and B2.

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 8 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Logger1000 Commissioning via WLAN
Access Logger1000 web portal
Use a smart device or laptop under Wi-Fi function to search for the SG********** (10
digits number) network that corresponds to the Logger1000 serial number.
Open a web browser and enter IP address (11.11.11.1) to access below Logger1000
web page.

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 9 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Then you can log in the account (please contact Sungrow for password) via the right
top corner login button. When you log in for the first time, a help window will pop up for
instruction.
Overview of main menu

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 10 of 16
© Sungrow Power Supply Co., Ltd. All rights reserved.
As we continuously improving our services, changes to this document may occur without notice.
Set date and time
Select Clock Source to ‘NTP’ and Time Zone to ‘UTC+10:00’ and make sure to Save
Device list
Navigate to ‘Device’ section and click ‘Auto search’; the connecting devices will be
display under ‘Device List’ section if connection is correct. Sungrow’s inverters will be
automatically detected as long as they are correctly connected and energised.
Meanwhile, you can confirm the communication status for each device under
Communication status section. Green icon indicates the connection works and red
icon means no connection between Logger1000 and other device.