Sungrow SG5KTL-MT User manual

TD_202003_Logger1000_Quick Guide for 3-Phase Inverters_V1.0 Page 1 of 16

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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.

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