Huawei SUN2000-5KTL-L1 User manual

INTEGRATION AND CONFIGURATION OF
HUAWEI INVERTER WITH TRYDAN

Electric Installation
First, we must make sure that our Huawei SUN2000-5KTL-L1 inverter has been correctly installed and
configured. In order to be able to take home consumption measurements we will need to connect one of
the compatible meters provided by Huawei to our inverter. For this manual we will use the DDSU666-H
meter.
Power Meter Installation (DDSU666-H)
The meter is responsible for calculating the household consumption and sending it to the inverter via
RS485. For this communication to be established, the following connections must be made:
To power the meter, we must connect the phase and neutral of the line we want to measure to pins 3 and
4, respectively. After that, we must establish RS485 communication by connecting pin 24 (A) and 25 (B) of
the meter to pin 3 and 4 of the communications connector of the Huawei inverter respectively. The clamp
should be connected according to the following scheme:

Communications Configuration
This section will show step by step how to configure the Huawei inverter to communicate with Trydan and
send the measurement data to Trydan.
Huawei Configuration SUN2000
Once the installation is done, we will be able to configure the communication of the Huawei inverter thanks
to the Wi-Fi signal it generates. This configuration can be executed from a smartphone, so we will use as an
example the configuration from the mobile app.
To do this, we must download the SUN2000 app and install it on our device. As an example, we will use an
Android device, and with the following link the download will start automatically: https://
appgallery.cloud.huawei.com/appdl/C10279542.
We can also scan this QR code:
After installation, when we start the app, we will accept the privacy policy and all the permissions required.
The first thing it shows us is a scanner to configure our inverter. The QR code that can scan is located on the
right side of the inverter but in this manual, we will configure the SUN2000 manually. Click on Manual
connection and select the image of our inverter.
In order to enter the configuration, we need to connect to the Wi-Fi that the SUN2000 generates. To do this,
press change and we will be redirected to the Wi-Fi configuration where we will search for this network.

By default, the network SSID will be SUN2000-(SERIAL NUMBER) and the password is Changeme. Once
connected, some devices will show a warning that the network has no internet connection. We will have to
press to maintain the connection and then we will press to continue inside the SUN 2000 app. We will be
asked for a password for the Installer user, by default it should be 00000a. This will allow us to enter the
Home screen.
Once we get in the home screen click on Settings >> Communication settings >> Router connection
settings. We can now see if the router to which it is connected is the same as Trydan or if it needs to be
configured. If it is configured, we should note down the IP it occupies in our network for further
configuration of Trydan.
Dongle parameter settings
Before exiting the Communication configuration settings, select the option Dongle parameter settings >>
Modbus TCP, indicating the option (Enable without restrictions).
Maintain Use mobile data
Confirm connection
The current Wi-Fi connection cannot
access the Internet, do you want to switch
to mobile data?

Power meter configuration
To configure the meter, go to Maintenance from the home screen. Click on Manage sub-device and add our
DDSU666-H (single phase) meter. The inverter will start scanning the device and if the connections are
correct, it will add it automatically.
If the measurements or the energy diagram shown is not logical, we must change the direction of the clamp
or configure this direction in the meter options through this same app.

The result should be a diagram in which the photovoltaic power is always positive as well as that of the
household. Only the total consumption should be negative if the house is consuming less than the PV
system is generating.
Trydan Configuration
Once the SUN2000 is configured, we open the V2C application where we can access our e-Charger.
Enter the desired e-Charger and click on the configuration icon at the top right. Enter the DYNAMIC POWER
CONTROL section and choose Huawei as the slave type and enter the IP address we specified earlier (e.g.
192.168.1.229). After choosing whether our network is single-phase or three-phase and whether it includes
photovoltaic installation, we will save the configuration. Trydan will save the configuration and restart to
apply these changes.
Final result
When Trydan finishes its startup, it will connect to Huawei and obtain the measurements via Modbus TCP to
vary the load intensity dynamically depending on the mode we have chosen. In the Trydan screen we will be
able to see the measurements obtained:
Trydan will display an error message if it fails to connect to Huawei, check your connection and make sure
that the two devices are connected to the same network. If the connection is correct, it will show the
measurements.

Problems after Huawei inverter update
Due to the recent update that Huawei has released to the SUN2000 family inverters, the communication
protocol used by Trydan has been disabled. After contacting Huawei to solve this problem, they indicate that
the only way to re-establish communication is by connecting an SDongleA to our inverter.
This device is an upgraded Wi-Fi adapter manufactured by this brand. Below, we describe the process
of installing and upgrading this device to be able to establish communication with Trydan again.
Physical connection of SDongleA al to the inverter
Connect the dongle to the USB port of our inverter as shown in the pictures. After that, the Dongle will start
the boot protocol and the LED will start blinking red. When finished, the blinking will be green and it will
generate a Wi-Fi access point for 3 minutes.
We must connect to this access point, which will have a name similar to "SDongleA-XXXX...". To do this, open
the SUN2000 application. Click on Manual Connection and select SDongleA. Click on Change in Current
WLAN and connect to the SDongleA WiFi with the password Changeme.
Once done, click on connect and the authentication screen will appear. We identify ourselves as Installer
with the password 00000a.
We can see the two options that allow us to configure the SDongleA of which we are only interested in
Maintenance. We enter this option and click on Upgrade Disp. We can see what version the Dongle has
installed and check that it is version V100R001C00SPC127. If it is not, click on Upgrade.
Led indicator
Inverter USB
port

It will allow us to update the equipment to be the correct version by uploading it from our smartphone. Click
on Manual Selection and look for this file which can be downloaded from the following link:
https://drive.google.com/file/d/1mqxrzA3c_7eEkTUueztCHdiApzA6vv51/view?usp=sharing
Click on Dongle Update and wait for the process to finish following the instructions on the screen. This
process should not modify the Wi-Fi configuration of the inverter, but it is advisable to check it later by
entering the inverter configuration. Once this process is done, the communication between the inverter
and Trydan will be re-established.

Display RS485_1 Dongle communication channel
We must consult the communication channel used by the Huawei inverter to then be incorporated into
the Dynamic Power Control settings. Currently there are 3 communication channels (0, 1, 2).
To do this, click on Communication Settings >> RS485_1 >> Comm Address.

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