HUAWEI FusionSolar Smart PV Management System Connection User Manual

FusionSolar Smart PV Management System Connection
User Manual (Inverters + SDongleA)
User Manual

About This Document

Purpose
This document describes how to connect inverters to the FusionSolar Smart PV Management System through the Smart Dongle. For details about the installation of each device, see the corresponding user manual or quick guide. This document describes only cable connections between devices, power-on commissioning, and maintenance.
Intended Audience
This document is intended for photovoltaic (PV) plant operators and qualified electricians.
Symbol Conventions
The symbols that may be found in this document are defined as follows.

avoided, will result in death or serious injury.
WARNING| Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury.
CAUTION| Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
NOTICE| Indicates a potentially hazardous situation which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal injury.
NOTE| Supplements the important information in the main text.
NOTE is used to address information not related to personal injury, equipment damage, and environment deterioration.

Change History
Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.
Issue 02 (2021-11-25)
Updated 2.2 Communication Networking of the SDongleA-03 (4G).
Updated 2.3 Communication Networking of the SDongleA-05 (WLAN-FE).
Updated 3.2 Installing the 4G/WLAN Smart Dongle.
Updated 5.2 Setting Grid-tied Control Parameters.
Issue 01 (2020-12-10)
This issue is the first official release.

Safety Precautions

General Safety
NOTICE

• Before performing operations, read through the safety precautions to prevent accidents. The DANGER, WARNING, CAUTION, and NOTICE statements in this document do not represent all the safety instructions. They are only supplements to the safety instructions.
• Only certified electricians are allowed to install, connect cables for, commission, maintain, and troubleshoot Huawei products, and they must understand basic safety precautions to avoid hazards.
  Follow all the safety precautions and instructions provided by Huawei. The safety precautions provided in this document do not cover all the safety precautions.
  Huawei shall not be liable for any consequence caused by the violation of the safety operation regulations and design, production, and usage standards.

Statement
Huawei shall not be liable for any consequence caused by any of the following events:

• Damage caused by storage conditions that do not meet the requirements specified in related documents
• Incorrect storage, installation, or use
• Installation or use by unqualified personnel
• Failure to follow the operation instructions and safety precautions in this document
• Operation in extreme environments which are not covered in this document
• Operation of the product beyond specified parameter ranges
• Unauthorized modifications to the product or software code or removal of the product
• Equipment damage due to force majeure (such as earthquakes, fires, and storms)
• Warranty expiration without extension of the warranty service
• Installation or use in environments which are not specified in related international standards

Personnel requirement
Only certified electricians are allowed to install, connect cables for, commission, maintain, troubleshoot, and replace the equipment. Operators need to meet the following requirements:

• Be properly trained.
• Read through this manual and master related safety precautions.
• Get familiar with the safety specifications about the electrical system.
• Understand the components and functioning of a grid-tied PV power system and relevant local standards.
• Wear proper personal protective equipment (PPE) all the time.

Protecting Labels

• Do not scrawl, damage, or block any warning label on the device enclosure.
• Do not scrawl, damage, or block the nameplate on the device enclosure.

System Installation
Ensure that the equipment is installed in a well ventilated environment.
Electrical Connections

DANGER
Before connecting cables, ensure that the equipment is secured in position and not damaged in any way. Otherwise, electric shocks or fire may occur.

• Ensure that all electrical connections comply with local electrical standards.
• Obtain approval from the local electric utility before connecting the inverter to the grid.
• Ensure that the cables used in a grid-tied PV power system are properly connected and insulated and meet specifications.

Operation
DANGER
High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage.
Perform operations in strict accordance with safety precautions specified in this document and other relevant documents.

• Do not touch an energized device, as the heat sink is hot.
• When operating the equipment, comply with local laws and regulations.

Maintenance and Replacement
DANGER
High voltage generated by the equipment during operation may cause an electric shock, which could result in death, serious injury, or serious property damage.
Prior to maintenance, power off the equipment and strictly comply with the safety precautions in this document and relevant documents.

• Maintain the equipment after you get familiar with this document and prepare the tools and testing equipment.
• Before performing maintenance, power off the equipment and wait at least 5 minutes.
• Place temporary warning signs or erect fences to prevent unauthorized access to the maintenance site.
• Rectify any faults that may compromise the equipment security performance before powering on the equipment again.
• Observe ESD precautions during maintenance.

Introduction to the Solution

This solution mainly applies to residential or small-scale ground-mounted PV plants, in which the inverter and power meter are connected to the FusionSolar Smart PV Management System through the Smart Dongle.

Table 2-1 Smart Dongle models

the FusionSolar Smart PV Management System over an IP network.
SDongleA-03-CNa
SDongleA-03-EU
SDongleA-03-AU
SDongleA-03-JP
SDongleA-03-KR| 4G| Connects to the FusionSolar Smart PV Management System through the 4G network by using a SIM card.
SDongleA-05| WLAN and FE| Connects to a router over WLAN or FE. The router connects to the FusionSolar Smart PV Management System over an IP network.
Note a: The SDongleA-03-CN Smart Dongle is applicable only to the Chinese mainland. For other countries or regions, Huawei does not provide quality assurance.

2.1 Communication Networking of the SDongleA-01 (WLAN)

• The inverter connects to the router through the WLAN Smart Dongle, and then connects to the FusionSolar Smart PV Management System through the router.
• The inverter connects to the FusionSolar app through its WLAN. You can use the FusionSolar app to view the running information and settings of the inverter.
• You can remotely log in to the FusionSolar Smart PV Management System over the WebUI or FusionSolar app.

Figure 2-1 Networking description

NOTE

• The components in the dotted box are optional.
• The inverter model is subject to change. The model information and device appearance in this document are for reference only.
• When multiple inverters are cascaded, only one Smart Dongle or SmartLogger can be connected to the RS485 communications link.
• When the Smart Dongle is used in China, it can be used for device cascading using RS485 communication (inverters cascading with inverters or other non-inverter devices). A maximum of 10 devices can be cascaded. In site communication scenarios, the number of inverters that can be cascaded also depends on the inverter features. When this Smart Dongle is used in other areas, device cascading using RS485 communication is not supported.

Table 2-2 Number of cascaded inverters

Maximum Number of Devices That Can Be Connected to the Smart Dongle ab| Number of Slave Inverters| Number of Other Devices (Such as Power Meters)
10| n ≤ 9| ≤ 9 – n

Note a: You can view the number of devices that can be connected to the Smart Dongle from the label on the external package.
Note b: If the number of inverters exceeds the limit, configure multiple Smart Dongles. The installation and commissioning for each Smart Dongle are the same.

Table 2-3 Device description

inverters are within the WLAN signal coverage.
● The WPA, WPA2, or WPA/WPA2 encryption mode is recommended.
● The Enterprise mode is not supported (such as airport WLAN and other public hotspots that require authentication).
● WEP and WPA TKIP encryption modes are not recommended because they have serious security vulnerabilities.
● If the access fails in WEP or WPA TKIP mode, log in to the router and change the encryption mode of the router to WPA2 or WPA/WPA2.| Device supplier
Intelligent management system| FusionSolar Smart PV Management System. Software version: SmartPVMS V500R007C00SPC110 or later.| Huawei
App| FusionSolar app of 5.7.001 or a later version. The app can be locally connected to the inverter and remotely connected to the FusionSolar Smart PV Management System.| Huawei
Power distribution unit| Prepared by the customer| Device supplier
Smart Power Sensor| Recommended model: DTSU666-H| Huawei
---|---|---
Power meter| Prepared by the customer| Device supplier

2.2 Communication Networking of the SDongleA-03 (4G)

• The inverter connects to the FusionSolar Smart PV Management System through the 4G Smart Dongle.
• The master inverter connects to the FusionSolar app. You can use the FusionSolar app to view the running information and settings of the inverter.
• You can remotely log in to the FusionSolar Smart PV Management System over the WebUI or FusionSolar app.

RS485 networking

NOTE

• The components in the dotted box are optional.
• The inverter model is subject to change. The model information and device appearance in this document are for reference only.
• In the networking, the inverter where the Dongle is installed is the master inverter, and other inverters are slave inverters. Slave inverters can communicate with the Dongle through cascading.
• When multiple inverters are cascaded, only one Smart Dongle or SmartLogger can be connected to the RS485 communications link.
• The Smart Power Sensor connects to the RS485-2 and RS485_2 ports, or 485B2 and 485A2 ports on the master inverter. The RS485-1 and RS485_1 ports, or 485B1 and
  485A1 ports are used for inverter cascading.

Table 2-4 Device description

L0. Software version: SUN2000L V100R001C00SPC333 or later.
● SUN2000-(2KTL-6KTL)-L1. Software version: SUN2000L V200R001C00 or later.
● SUN2000-(3KTL-20KTL)-M0
● SUN2000-(3KTL-12KTL)-M1
● SUN2000-(8KTL-20KTL)-M2
● SUN2000-(20KTL-40KTL)-M3
● SUN2000-70KTL/75KTL-C1 (optional), SUN2000-70KTL-INM0, SUN2000-50KTL/60KTL/65KTL- M0, SUN2000-50KTL/SUN2000-63KTL-JPM0, or SUN2000 -50KTL-JPM1. Software version: SUN2000 V300R001C00SPC112 or later.
● SUN2000-100KTL/110KTL/125KTL-M0, SUN2000-75KTL/100KTL-M1, or SUN2000-100KTL- INM0.
● SUN2000-175KTL/196KTL/215KTL-H0, SUN2000-185KTL-INH0, SUN2000-185KTL-H1. Software version: SUN2000. HAV300R001C00SPC101 or later.
● SUN2000-125KTL-JPH0
● SUN2000-196KTL/200KTL/215KTL-H3
● SUN2000-200KTL-H2| Huawei
| Slave inverter| ● A master inverter can be used as a slave inverter. A master inverter that does not support cascading, such as SUN2000-(2KTL- 5KTL)-CN or SUN2000-(2KTL-5KTL)-L0, cannot be used as a slave inverter.
● SUN2000-29.9KTL/36KTL/42KTL/50KTL
● SUN2000-33KTL-A
● SUN2000-33KTL/40KTL-JP
● SUN2000-43KTL-IN-C1
●  SUN2000-50KTL-C1| Huawei
---|---|---|---
Dongle| Purchased by the customer. The model should be SDongleA-03-XX. For details, see the Smart Dongle models.| Huawei
SIM card| If the Smart Dongle is not configured with a SIM card, prepare a standard SIM card of the local carriers (size: 25 mm x 15 mm).| Customer
Intelligent management system| ● Huawei management system: FusionSolar Smart PV Management System with the software version of SmartPVMS V500R007C00SPC110 or later. You are advised to use the latest version.
● Third-party management system: A third-party management system is supported. For details, see the third-party management system documentation.| Huawei
App| ● FusionSolar app of 5.7.001 or a later version. The app can be locally connected to the inverter and remotely connected to the FusionSolar Smart PV Management System.
● SUN2000 app of 3.2.00.005 or a later version for Android. The app can be locally connected to the inverter.| Huawei
Power distribution unit| Prepared by the customer| Device supplier
Smart Power Sensor| ● Recommended model for three-phase inverters: DTSU666-H
● Recommended models for single-phase inverters: DDSU666-H and DTSU666-H| Huawei
Power meter| Prepared by the customer| Device supplier

MBUS Communication Networking

• The inverter connects to the FusionSolar Smart PV Management System through the 4G Smart Dongle.
• The inverter connects to a phone through a Smart USB-WLAN Adapter (shortened to WLAN module in this document), Bluetooth module, or a data cable. You can use the SUN2000 app to view the running information and set inverter parameters locally.
• You can remotely log in to the FusionSolar Smart PV Management System over the WebUI or FusionSolar app.

NOTICE
The MBUS communication is applicable to medium-voltage grid connection scenarios and non-low-voltage public grid connection scenarios (industrial environment).

Figure 2-3 Networking description

NOTE

• The components in the dotted box are optional.
• The inverter model is subject to change. The model information and device appearance in this document are for reference only.
• In the networking, the inverter where the Dongle is installed is the master inverter, and other inverters are slave inverters. Slave inverters can communicate with the Dongle through cascading.
• When multiple inverters are cascaded, only one Smart Dongle or SmartLogger can be connected to the RS485 communications link.
• The Smart Power Sensor connects to the RS485-2 and RS485_2 ports, or 485B2 and 485A2 ports on the master inverter. The RS485-1 and RS485_1 ports, or 485B1 and
  485A1 ports are used for inverter cascading.

SUN2000-50KTL/60KTL-M0
SUN2000-100KTL/110KTL/125KTL-M0| Huawei
Dongle| Purchased by the customer. The model should be SDongleA-03-XX. For details, see the Smart Dongle models.| Huawei
SIM card| If the Smart Dongle is not configured with a SIM card, prepare a standard SIM card (size: 25 mm x 15 mm) of a local carrier.| Customer
Intelligent management system| ● Huawei management system: FusionSolar Smart PV Management System with the software version of SmartPVMS V500R007C00SPC110 or later. You are advised to use the latest version.
● Third-party management system: A third-party management system is supported. For details, see the third-party management system documentation.| ● Huawei

● Device supplier

App| ● FusionSolar app of 5.7.001 or a later version. The app can be locally connected to the inverter and remotely connected to the FusionSolar Smart PV Management System.
● SUN2000 app of 3.2.00.005 or a later version for Android. The app is locally connected to the inverter.| Huawei
AC combiner box| Prepared by the customer| Customer
Transformer station| Prepared by the customer| Customer
---|---|---
Power meter| Prepared by the customer| Device supplier

Smart Dongle Parameters
Table 2-6 Number of cascaded inverters

Maximum Number of Devices That Can Be Connected to the Smart Dongle abcd| Number of Slave Inverters| Number of Other Devices (Such as Power Meters)
10| n ≤ 9| ≤ 9 – n
2| n ≤ 1| ≤ 1 – n
Note a: You can view the number of devices that can be connected to the Smart Dongle from the label on the external package.
Note b: If the number of inverters exceeds the limit, configure multiple Smart Dongles. The installation and commissioning for each Smart Dongle are the same.
Note c: If cascaded inverters include a single-phase inverter or are connected to batteries, a maximum of three inverters can be cascaded.
Note d: If RS485 communication is used and the device is connected to the RS485-2 and RS485_2 ports, or 485B2 and 485A2 ports on the master inverter, the device is not counted as a cascaded device.

Table 2-7 Frequency bands and systems of the Smart Dongle

LTE TDD: B38, B39, B40, B41
DC-HSPA+/HSPA+/HSPA/UMTS: B1, B5, B8, B9 TD-SCDMA: B34, B39
GSM/GPRS/EDGE: 900 MHz, 1800 MHz
SDongleA-03-EU| LTE FDD: B1, B3, B7, B8, B20 LTE TDD: B38, B40
WCDMA/HSDPA/HSUPA/HSPA+: B1, B8
GSM/GPRS/EDGE: 900 MHz, 1800 MHz
SDongleA-03-AU| LTE FDD: B1, B2, B3, B4, B5, B7, B8, B28 LTE TDD: B40
WCDMA: B1, B2, B5, B8
GSM: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz
---|---
SDongleA-03-JP| LTE FDD: B1, B3, B8, B18, B19, B26 LTE TDD: B41
WCDMA: B1, B6, B8, B19
SDongleA-03-KR| LTE FDD: B1, B3, B5, B7 WCDMA: B1

Table 2-8 Traffic requirements for the SIM card

Access Managemen t System Type| Monthly Traffic Requirement for the SIM Card| Traffic Capability
---|---|---
FusionSolar Smart PV Management System| Inverter| Without a power sensor or energy storage| 10 MB + 4 MB x
Number of inverters| ● Device performance data can be updated every 5 minutes.
● The Smart Dongle logs, inverter logs, and I-V diagnosis data can be exported monthly. The Smart Dongle and inverters can be upgraded monthly.
With a power sensor| 10 MB + 7 MB x
Number of inverters
With energy storage| 13 MB + 7 MB x
Number of inverters + 5 MB x Number of DC-DC converters
With a power sensor and energy storage| 13 MB + 7 MB x
Number of inverters + 5 MB x Number of DC-DC converters
With Smart PV Optimizers| 13 MB + 7 MB x
Number of inverters + 5 MB x Number of DC-DC converters

2.3 Communication Networking of the SDongleA-05 (WLAN-FE)

• The inverter connects to the router through the WLAN-FE Smart Dongle, and then connects to the FusionSolar Smart PV Management System through the router.
• The master inverter connects to the FusionSolar app through its WLAN. You can use the FusionSolar app to view the running information and settings of the inverter.
• You can remotely log in to the FusionSolar Smart PV Management System over the WebUI or FusionSolar app.

Figure 2-4 Networking description (WLAN-FE)

NOTE

• The components in the dotted box are optional.
• The inverter model is subject to change. The model information and device appearance in this document are for reference only.
• In the networking, the inverter where the Dongle is installed is the master inverter, and other inverters are slave inverters. Slave inverters can communicate with the Dongle through cascading.
• When multiple inverters are cascaded, only one Smart Dongle or SmartLogger can be connected to the RS485 communications link.
• The Smart Power Sensor connects to the RS485-2 and RS485_2 ports, or 485B2 and 485A2 ports on the master inverter. The RS485-1 and RS485_1 ports, or 485B1 and
  485A1 ports are used for inverter cascading.

Table 2-9 Number of cascaded inverters

Maximum Number of Devices That Can Be Connected to the Smart Dongle abcd| Number of Slave Inverters| Number of Other Devices (Such as Power Meters)
10| n ≤ 9| ≤ 9 – n
Note a: You can view the number of devices that can be connected to the Smart Dongle from the label on the external package.
Note b: If the number of inverters exceeds the limit, configure multiple Smart Dongles. The installation and commissioning for each Smart Dongle are the same.
Note c: If cascaded inverters include a single-phase inverter or are connected to batteries, a maximum of three inverters can be cascaded.
Note d: If RS485 communication is used and the device is connected to the RS485-2 and RS485_2 ports, or 485B2 and 485A2 ports on the master inverter, the device is not counted as a cascaded device.

Table 2-10 Device description

SUN2000L V200R001C00 or later. (all software versions of this inverter model are supported.)
● SUN2000-(3KTL-20KTL)-M0
● SUN2000-(3KTL-12KTL)-M1
● SUN2000-(8KTL-20KTL)-M2
● SUN2000-(20KTL-40KTL)-M3| Huawei
| Slave inverter| ● A master inverter can be used as a slave inverter.
● SUN2000-33KTL
● SUN2000-29.9KTL/33KTL-A/36KTL
● SUN2000-50KTL/60KTL-M0
● SUN2000-100KTL/110KTL-M0| Huawei
---|---|---|---
Dongle| Purchased by the customer. The model should be SDongleA-05.| Huawei
Router| ● The router supports WLAN (IEEE 802.11 b/g/n, 2.4 GHz), and the inverters are within the WLAN signal coverage.
● The WPA, WPA2, or WPA/WPA2 encryption mode is recommended.
● The Enterprise mode is not supported (such as airport WLAN and other public hotspots that require authentication).
●  WEP and WPA TKIP encryption modes are not recommended because they have serious security vulnerabilities.
● If the access fails in WEP or WPA TKIP mode, log in to the router and change the encryption mode of the router to WPA2 or WPA/WPA2.| Device supplier
Intelligent management system| FusionSolar Smart PV Management System. Software version: SmartPVMS V500R007C00SPC110 or later.| Huawei
App| FusionSolar app of 2.5.8 or a later version. The app can be locally connected to the inverter and remotely connected to the FusionSolar Smart PV Management System.| Huawei
Power distribution unit| Prepared by the customer| Device supplier
Smart Power Sensor| DTSU666-H| Huawei
Power meter| Prepared by the customer| Device supplier

Cable Connections

3.1 Connecting Cables for Cascaded Inverters
This document provides only the schematic diagram of inverter cascading. For details about communications port definitions and cable connections, see the user manual of each inverter.

Figure 3-1 Cable connections for cascaded inverters

NOTICE

• Ensure that the shielding layer is grounded when connecting the RS485 cable.
• When laying out communications cables, separate them from power cables and keep them away from strong interference sources to prevent communication interruption.

Figure 3-2 Connecting cables to the DTSU666-H (three-phase three-wire)

Figure 3-3 Connecting cables to the DTSU666-H (three-phase four-wire)

3.2 Installing the 4G/WLAN Smart Dongle
Step 1 Install a SIM card. (Skip this step for the WLAN Smart Dongle or the Smart Dongle that is configured with a SIM card.)
Figure 3-4 Installing a SIM card

Step 2 Install the Smart Dongle onto the USB port on the master inverter.
Figure 3-5 Installing a Smart Dongle

3.3 Installing the WLAN-FE Smart Dongle
WLAN communication
Install the Smart Dongle onto the USB port on the master inverter.
Figure 3-6 Installing a Smart Dongle

FE Communication
After connecting the FE cable, install the Smart Dongle onto the USB port on the master inverter.
You are advised to use a Cat 5e outdoor shielded network cable (outer diameter < 9 mm; internal resistance ≤ 1.5 ohms/10 m) and shielded RJ45 connectors.
Figure 3-7 Installing a Smart Dongle

System Power-On and Commissioning

4.1 Checking Before Power-On

1. Ensure that the ground cable of the inverter is securely connected.
2. Ensure that the inverter is properly installed and all cables are correctly and reliably connected.
3. Ensure that the Smart Dongle is properly installed.

4.2 Powering On the Inverter
Power on the inverter after cable connections are completed. Procedure
Step 1 Turn on the AC circuit breaker between the inverter and the power grid.
Step 2 Turn on the DC switch at the bottom of the inverter.
—-End
Viewing the LED Indicator Status of the Smart Dongle

Table 4-1 LED indicator status (WLAN Smart Dongle and WLAN-FE Smart Dongle)

Operation| Indicator Color| Indicator Status| Remarks| Description
---|---|---|---|---
Installing the Smart Dongle

| N/A| Off| Normal

| The Smart Dongle is not secured or is not powered on.
Yellow (blinking green and red simultaneously)| Steady on| The Smart Dongle is secured and powered on.
Red| Blinking fast (on for 0.2s and then off for 0.2s)| The parameters for connecting to the router are to be set.
Red| Steady on| Abnormal| Replace the Smart Dongle because it has an internal fault.
Blinking red and green alternatively| Blinking slowly (red for 1s and then green for 1s)| No communication with the inverter
● Remove and insert the Smart Dongle.
● Check that the inverter matches the Smart Dongle.
● Connect the Smart Dongle to another inverter. Check whether the Smart Dongle or the USB port of the inverter is faulty.
Upgrading the Smart Dongle| Blinking red and green alternatively| Blinking fast (red for 0.2s and then green for 0.2s)| Normal| The Smart Dongle is being upgraded locally.
Setting an inverter’s connection to a router| Green| Blinking slowly (on for 0.5s and then off for 0.5s)| Normal| Connecting to the router
Red| Blinking fast (on for 0.2s and then off for 0.2s)| Abnormal| Failed to connect to the router. Check whether the parameters for connecting the Smart Dongle to the router are properly set. If not, set the parameters correctly.
Set parameters in the manageme nt system| Green| Steady on| Normal| Successfully connected to the management system.
Red| Blinking slowly (on for 1s and then off for 1s)| Abnormal| Failed to connect to the management system. Check whether the parameters for connecting inverters to the management system are properly set. If not, set the parameters correctly.
Green| Blinking fast (on for 0.2s and then off for 0.2s)| Normal| The inverter is communicating with the management system through the Smart Dongle.

Table 4-2 LED indicator status (4G Smart Dongle)

secured and powered on.
Green| The indicator blinks at intervals of 2s, on for 0.1s and then off for 1.9s.| Normal| Dialing (duration < 1 min)
Abnormal| If the duration is longer than 1 min, the 4G parameter settings are incorrect. Reset the parameters.
Blinking slowly (on for 1s and then off for 1s)| Normal| The dial-up connection is set up successfully (duration < 30s).
Abnormal| If the duration is longer than 30s, the settings of the management system parameters are incorrect. Reset the parameters.
Steady on| Normal| Successfully connected to the management system.
Blinking fast (on for 0.2s and then off for 0.2s)| The inverter is communicating with the management system through the Smart Dongle.
Red| Steady on| Abnormal

| Replace the Smart Dongle because it has an internal fault.
Blinking fast (on for 0.2s and then off for 0.2s)| The Smart Dongle has no SIM card or the SIM card is in poor contact. Check whether the SIM card has been installed or is in good contact. If not, install the SIM card or remove and insert the SIM card.
Blinking slowly (on for 1s and then off for 1s)| The Smart Dongle fails to connect to the management system because the SIM card has no traffic or the signal strength is poor. If the Smart Dongle is reliably connected, check the SIM card signal through the app. If no signal is received or the signal strength is weak, contact the carrier. Check whether the tariff and traffic of the SIM card are normal. If not, recharge the SIM card or purchase a data package.
Blinking red and green alternatively| Blinking slowly (red for 1s and green for 1s)| No communication with the inverter
● Remove and insert the Smart Dongle.
● Check that the inverter matches the Smart Dongle.
● Connect the Smart Dongle to another inverter. Check whether the Smart Dongle or the USB port of the inverter is faulty.
Blinking fast (red for 0.2s and then green for 0.2s)| Normal| The Smart Dongle is being upgraded locally.

Site Deployment and Commissioning

5.1 Creating a PV Plant
5.1.1 Creating a PV Plant over the App
Prerequisites

• You have downloaded and installed the FusionSolar app which can be obtained by searching for FusionSolar in Huawei AppGallery or scanning the QR code.

https://intl.fusionsolar.huawei.com/pvmswebsite/nologin/assets/build/index.html#/jumppage

• The inverter is properly powered on and the Smart Dongle communicates with the management system properly.
• You have obtained the login account and password from the installation contractor or Huawei service engineer. If no account or password is available, create an account.

NOTE

• The latest app version is required for device commissioning. You can search for FusionSolar in App Store or scanning the QR code to install the app for iOS.
• This section contains a large number of screenshots, which are only used to illustrate the operation method. The PV plant, device model, and parameters in the figures are for reference only.
• The version of the FusionSolar app is 5.7.001. The actual screens may vary.

Procedure
Step 1 Register an installer account using a mobile number (only in China) or email address. If an installer account exists, skip this step.
Figure 5-1 Registering an account

Step 2 Log in to the app using the installer account, and tap Setup Wizard to create a PV plant. For details, see the FusionSolar APP Quick Guide by scanning the QR code.

NOTE

• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a  password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.
• To create multiple installer accounts for a company, log in to the app and create an installer account by choosing New User.

Figure 5-3 FusionSolar APP Quick Guide

https://support.huawei.com/enterprise/en/doc/EDOC1100165052

5.1.2 Creating a PV Plant over the WebUI
Prerequisites

• You have matched the devices with the PV plant with the PV plant with the help of the installation contractor.
• The inverter and Smart Dongle have been powered on and communicates properly with the management system.
• You have obtained the login account and password from the installation contractor or Huawei service engineer. If no account or password is available, create an account.

Figure 5-4 Procedure for creating a PV plant

Procedure
Step 1 Enter the management system address in the address box of a browser: https://intl.fusionsolar.huawei.com.

NOTE

• Browser: Chrome 67, Safari 9.0, Internet Explorer 11, or a later version is recommended.
• The software version corresponding to the user interface (UI) snapshots is SmartPVMS V500R007C00CP2101. The UIs may vary with software versions and are for reference only.

Step 2 If you have obtained the login account and password from the installation contractor or Huawei service engineer, enter the account and password, and click Login to go to the home page. If you have not created an account, click Installer Registration, fill in the registration information, and activate the account with the email verification code sent to you.

Figure 5-5 Login page

Figure 5-6 Registering an account

Step 3 Add Plant.

• Method 1: On the home page, click Add Plant.

Figure 5-7 Creating a PV plant (Method 1)

• Method 2: On the home page, click Plants in the upper-right corner to go to the Plant page, and choose Plant Management, click Add Plant.

Figure 5-8 Creating a PV plant (Method 2)

• Method 3: On the home page, click Plants in the upper-right corner to go to the Device page, and choose Device Access, select any device, and click Bind to New Plant.
  NOTE
  At least one device must be connected in the Device Access.

Figure 5-9 Creating a PV plant (Method 3)

Step 4 Fill in the basic information about the PV plant as required and click Next.

Figure 5-10 Basic information of the PV plant

Table 5-1 Description of basic information (* means required fields)

You are advised to set this parameter.
Contact method| Contact information which facilitates problem handling. You are advised to set this parameter.

Step 5 On the Access Device tab page, set the connected devices for the PV plant.

1. Manually enter the SN of the Smart Dongle and click the blank area of Device type. The system automatically displays the device name and model.
   The affiliated inverters and power meter are automatically added. Click + on the left of the SN to expand the device information. (The + icon becomes the – icon after the information is expanded.) Then, check whether the connected devices are correct.

Figure 5-11 Entering the device SN

Step 6 Click Next to go to the String Configuration tab page.

1. Fill Total plant string capacity (kWp) (Total rated active power of the plant generator set) as required. In the device list, select one or more devices to be configured and click String Capacity Configuration. The String Capacity Configuration dialog box is displayed.
   Figure 5-12 String capacity configuration

2. Verify the number of PV strings and the string capacity, and click OK.
   Figure 5-13 Verifying the number of PV strings and the string capacity NOTE
   If Batch Configuration is selected, the capacity of other PV strings to be configured is automatically set to the same value as PV1 after PV1 capacity is configured.

Step 7 Click Next. On the displayed Electric Price Configuration tab page, set the date range, time period, and electricity price.
Figure 5-14 Adding time-based prices

NOTE

• Click Add to add a date range. Multiple date ranges cannot overlap and must cover a full year.
• Click to add a time period and price. Multiple time periods cannot overlap and must cover a full year.
• Click Delete to delete a time-based price.
• Click to delete a date range.

Step 8
Click Next to go to the Other Information tab page. Set other information about the PV plant, including Plant image, Address, Start time of safe running, Plant introduction, and Plant time zone of the PV plant. Start time of safe running refers to the day when the PV plant starts to generate electricity normally. It is mainly used to calculate the safe running days of the PV plant.

Figure 5-15 Other information

Step 9
Click Save. In the displayed dialog box, click OK. The PV plant is created successfully.
—-End

Follow-up Procedure

• Modifying PV plant information: In the PV plant list, click Modify for the PV plant to be modified.
• Deleting a PV plant: In the PV plant list, select one or more PV plants to be deleted and click Delete.

5.2 Setting Grid-tied Control Parameters
5.2.1 Setting Parameters over the App
Prerequisites

• The FusionSolar app is recommended when the inverter is connected to the FusionSolar Smart PV Management System. The SUN2000 app is recommended when the inverter is connected to other management systems.
• You have downloaded and installed the FusionSolar app which can be obtained by searching for FusionSolar in Huawei AppGallery or scanning the QR code. https://intl.fusionsolar.huawei.com/pvmswebsite/nologin/assets/build/index.html#/jumppage
• SUN2000 APP: Search for “SUN2000” in Huawei AppGallery, download the latest installation package, and install the SUN2000 app by following the instructions.

NOTE

• In areas (such as the UK) where the FusionSolar app is not available, or when a thirdparty management system is used, only the SUN2000 app can be used for commissioning. This document uses the FusionSolar app as an example to describe the commissioning method. For the SUN2000 app, perform operations as required.
• The SUN2000 app version should be 3.2.00.005 (Android) or later.

Procedure
Step 1
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 5-16 Device commissioning

Step 2 Connect to the inverter.
Figure 5-17 Connecting to the inverter

NOTE

• The inverter WLAN password can be changed on the Communication configuration screen. You can tap in the upper-right corner of the home screen to change the login password for Common User, Advanced User, Special User, and installer.
• If you enter wrong login passwords for installer for five consecutive times and the interval between two attempts is within 2 minutes, your account will be locked. Log in to the app again after 5 minutes.
• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

Step 3
Set grid-tied control parameters.
Figure 5-18 Parameter settings

Table 5-2 Control mode

output power is not limited and the inverter can feed its rated power to the power grid.
Grid connection with zero power| Closed-loop controller| • SDongle/ SmartLogger
• Inverter| • For a single inverter, set Closed-loop controller to Inverter.
• For multiple inverters, Closed-loop controller can only be set to SDongle/Smarthogger.
Limitation mode| • Total power
• Single-phase power| • When this parameter is set to Total power, no backfeeding occurs on the three phases.
• When this parameter is set to Single-phase power, no backfeeding occurs on the phase with the maximum power.
Parameter| Description
---|---
| Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Communication disconnection fail-safe| ● Disable
● Enable| In the inverter export limitation scenario, if this parameter is set to Enable, the inverter will derate according to the active power derating percentage when the communication between the inverter and the Smart Dongle is disconnected for a period longer than Communication disconnection detection time.
Communication disconnection detection time| N/A| Specifies the time for determining the communication disconnection between the inverter and the Smart Dongle. This parameter is displayed when Communication disconnection fail-safe is set to Enable.
Active power output limit for fail-safe| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.
Parameter| Description
---|---
Grid connection with limited power (kW)| Closed-loop controller| ● SDongle/ SmartLogger

● Inverter

| ● For a single inverter, set Closed- loop controller to Inverter.
● For multiple inverters, Closed- loop controller can only be set to SDongle/SmartLogger.
Limitation mode| ● Total power
● Single-phase power| ● When this parameter is set to Total power , no backfeeding occurs on the three phases.
● When this parameter is set to Single-phase power , no backfeeding occurs on the phase with the maximum power.
PV plant capacity| N/A| Specifies the total maximum active power in the inverter cascading scenario.
Maximum grid feed-in power (kW)| N/A| Specifies the maximum active power transmitted from the grid-tied point to the power grid.
Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Parameter| Description
---|---
| Communication disconnection fail-safe| ●    Disable

●    Enable

| In the inverter export limitation scenario, if this parameter is set to Enable , the inverter will derate according to the active power derating percentage when the communication between the inverter and the Smart Dongle is disconnected for a period longer than Communication disconnection detection time.
Communication disconnection detection time| N/A| Specifies the time for determining the communication disconnection between the inverter and the Smart Dongle. This parameter is displayed when Communication disconnection fail- safe is set to Enable.
Active power output limit for fail-safe| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.
Grid connection with limited power (%)| Closed-loop controller| ● SDongle/ SmartLogger
● Inverter| ● For a single inverter, set Closed- loop controller to Inverter.
● For multiple inverters, Closed- loop controller can only be set to SDongle/SmartLogger.
Limitation mode| ● Total power

● Single-phase power

| ● When this parameter is set to Total power , no backfeeding occurs on the three phases.
● When this parameter is set to Single-phase power , no backfeeding occurs on the phase with the maximum power.
PV plant capacity| N/A| Specifies the total maximum active power in the inverter cascading scenario.
Maximum grid feed-in power (%)| N/A| Specifies the percentage of the maximum active power of the grid- tied point to the PV plant capacity.
Parameter| Description
---|---
| Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Communication disconnection fail-safe| ● Disable
● Enable| In the inverter export limitation scenario, if this parameter is set to Enable , the inverter will derate according to the active power derating percentage when the communication between the inverter and the Smart Dongle is disconnected for a period longer than Communication disconnection detection time.
Communication disconnection detection time| N/A| Specifies the time for determining the communication disconnection between the inverter and the Smart Dongle. This parameter is displayed when Communication disconnection fail- safe is set to Enable.
Active power output limit for fail-safe| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.

—-End

5.2.2 Setting Parameters over the WebUI
Prerequisites

• You have matched the devices with the PV plant with the PV plant with the help of the installation contractor.
• The inverter and Smart Dongle have been powered on and communicates properly with the management system.
• You have obtained the login account and password from the installation contractor or Huawei service engineer. If no account or password is available, create an account.

Procedure
Step 1
Enter the management system address in the address box of a browser: https://intl.fusionsolar.huawei.com.
NOTE

• Browser: Chrome 67, Safari 9.0, Internet Explorer 11, or a later version is recommended.
• The software version corresponding to the user interface (UI) snapshots is SmartPVMS V500R007C00CP2101. The UIs may vary with software versions and are for reference only.

Step 2
If you have obtained the login account and password from the installation contractor or Huawei service engineer, enter the account and password, and click Login to go to the home page. If you have not created an account, click Installer Registration, fill in the registration information, and activate the account with the email verification code sent to you.

Figure 5-19 Login page

Figure 5-20 Registering an account

Step 3
On the home page, click Plants in the upper-right corner to go to the Device page, and choose Device Management, select the corresponding PV plant, select Smart Dongle, and click Ser Parameters.
Figure 5-21 Setting export limitation 1

Step 4
Choose Active Power Control and set related parameters.

Figure 5-22 Setting export limitation 2

Table 5-3 Active power control mode

output power is not limited and the inverter can feed its rated power to the power grid.
Grid connection with zero power| Closed-loop controller| ● SDongle/ SmartLogger
● Inverter| ● For a single inverter: When the Smart Dongle is connected, set Closed-loop controller to Inverter. When the inverter is directly connected, Closed-loop controller to Inverter. When the SmartLogger is connected, set Closed-loop controller to SDongle/SmartLogger.
● For multiple inverters, Closed- loop controller can only be set to SDongle/SmartLogger.
Limitation mode| ● Total power
● Single-phase power| ● When this parameter is set to Total power , no backfeeding occurs on the three phases.
● When this parameter is set to Single-phase power , no backfeeding occurs on the phase with the maximum power.
Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Parameter| Description
---|---
| Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Fail-safe power threshold| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.
Grid connection with limited power (kW)| Closed-loop controller| ● SDongle/ SmartLogger
● Inverter| ● For a single inverter: When the Smart Dongle is connected, set Closed-loop controller to Inverter. When the inverter is directly connected, Closed-loop controller to Inverter. When the SmartLogger is connected, set Closed-loop controller to SDongle/SmartLogger.
● For multiple inverters, Closed- loop controller can only be set to SDongle/SmartLogger.
Limitation mode| ● Total power
● Single-phase power| ● When this parameter is set to Total power , no backfeeding occurs on the three phases.
● When this parameter is set to Single-phase power , no backfeeding occurs on the phase with the maximum power.
PV plant capacity| N/A| Specifies the total maximum active power in the inverter cascading scenario.
Parameter| Description
---|---
| Maximum grid feed-in power (kW)| N/A| Specifies the maximum active power transmitted from the grid-tied point to the power grid.
Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Fail-safe power threshold| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.
Grid connection with limited power (%)| Closed-loop controller| ● SDongle/ SmartLogger
● Inverter| ● For a single inverter: When the Smart Dongle is connected, set Closed-loop controller to Inverter. When the inverter is directly connected, Closed-loop controller to Inverter. When the SmartLogger is connected, set Closed-loop controller to SDongle/SmartLogger.
● For multiple inverters, Closed- loop controller can only be set to SDongle/SmartLogger.
Parameter| Description
---|---
| Limitation mode| ● Total power
● Single-phase power| ● When this parameter is set to Total power , no backfeeding occurs on the three phases.
● When this parameter is set to Single-phase power , no backfeeding occurs on the phase with the maximum power.
PV plant capacity| N/A| Specifies the total maximum active power in the inverter cascading scenario.
Maximum grid feed-in power(%)| N/A| Specifies the percentage of the maximum active power of the grid- tied point to the PV plant capacity.
Power adjustment period| N/A| Specifies the shortest interval for a single export limitation adjustment.
Maximum protection time| N/A| ● Specifies the time for detecting power meter data. If the Smart Dongle does not detect any power meter data within the preset time, the Smart Dongle delivers the preset value of the Fail-safe power threshold to the inverter for protection.
● The recommended value is 5s or greater.
Power control hysteresis| N/A| Specifies the dead zone for adjusting the inverter output power. If the power fluctuates within the power control hysteresis, the power is not adjusted.
Fail-safe power threshold| N/A| Specifies the derating value of the inverter active power by percentage. If the Smart Dongle does not detect any power meter data or the communication between the Smart Dongle and the inverter is disconnected, the Smart Dongle delivers the derating value of the inverter active power by percentage.

Maintenance

6.1 Modifying Inverter Communications Parameters
Prerequisites

• The FusionSolar app is recommended when the inverter is connected to the FusionSolar Smart PV Management System. The SUN2000 app is recommended when the inverter is connected to other management systems.
• You have downloaded and installed the FusionSolar app which can be obtained by searching for FusionSolar in Huawei AppGallery or scanning the QR code. https://intl.fusionsolar.huawei.com/pvmswebsite/nologin/assets/build/index.html#/jumppage
• SUN2000 APP: Search for “SUN2000” in Huawei AppGallery, download the latest installation package, and install the SUN2000 app by following the instructions.

NOTE

• In areas (such as the UK) where the FusionSolar app is not available, or when a thirdparty management system is used, only the SUN2000 app can be used for commissioning. This document uses the FusionSolar app as an example to describe the commissioning method. For the SUN2000 app, perform operations as required.
• The SUN2000 app version should be 3.2.00.005 (Android) or later.

6.1.1 WLAN Communication Networking
Step 1
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 6-1 Device commissioning

Step 2
Connect to the inverter.
Figure 6-2 Connecting to the inverter

NOTE

• The inverter WLAN password can be changed on the Communication configuration screen. You can tap in the upper-right corner of the home screen to change the login password for Common User, Advanced User, Special User, and installer.
• If you enter wrong login passwords for installer for five consecutive times and the interval between two attempts is within 2 minutes, your account will be locked. Log in to the app again after 5 minutes.
• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

Step 3
Tap Communication configuration and set the parameters for Router connection settings.
Figure 6-3 Inverter communication settings

Table 6-1 Parameter description

wireless network.
Password| Specifies the password for logging in to the wireless network.
DHCP| ● Enable this parameter if you use the IP address automatically allocated by the router. In this case, the values of IP address , Subnet mask , Gateway , Primary DNS server , and Secondary DNS server are automatically allocated.
● Disable this parameter if you do not use the IP address automatically allocated by the router. In this case, you need to set the values of IP address , Subnet mask , Gateway , Primary DNS server , and Secondary DNS server.
IP address| Specifies the IP address for the router to which the inverter WLAN network connects. The IP address must be in the same network segment as the router IP address.
Subnet mask| Specifies the router subnet mask.
Gateway| Specifies the router gateway address.
Primary DNS server| Specifies the address for the primary domain name service (DNS) server.
Secondary DNS server| Specifies the address for the secondary DNS server.

Table 6-2 Description of icons

—-End

6.1.2 4G Communication Networking
Procedure
Step 1
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 6-4 Device commissioning

Step 2
Connect to the inverter.
Figure 6-5 Connecting to the inverter

NOTE

• The inverter WLAN password can be changed on the Communication configuration screen. You can tap in the upper-right corner of the home screen to change the login password for Common User, Advanced User, Special User, and installer.
• If you enter wrong login passwords for installer for five consecutive times and the interval between two attempts is within 2 minutes, your account will be locked. Log in to the app again after 5 minutes.
• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

Step 3
Tap Communication configuration and set 4G parameters.
Figure 6-6 Inverter communication settings

Table 6-3 Parameter description

information provided by the SIM card carrier.
APN
Type| Parameter| Setting Description
---|---|---
| APN dialup number| ● When APN mode is set to Manual , APN , APN dialup number , APN user name , and APN user password are all displayed and configurable. When APN mode is set to Automatic , these parameters are not displayed.
APN user name
APN user password
Network mode
PIN

Table 6-4 Description of icons

—-End
6.1.3 FE Communication Networking
Step 1
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 6-7 Device commissioning

Step 2
Connect to the inverter.
Figure 6-8 Connecting to the inverter

NOTE

• The inverter WLAN password can be changed on the Communication configuration screen. You can tap in the upper-right corner of the home screen to change the login password for Common User, Advanced User, Special User, and installer.
• If you enter wrong login passwords for installer for five consecutive times and the interval between two attempts is within 2 minutes, your account will be locked. Log in to the app again after 5 minutes.
• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

Step 3
Tap Communication configuration and set the parameters for Router connection settings.
Figure 6-9 Inverter communication settings

Table 6-5 Parameter description

the IP address automatically allocated by the router. In this case, the values of IP address , Subnet mask , Gateway , Primary DNS server , and Secondary DNS server are automatically allocated.
● Disable this parameter if you do not use the IP address automatically allocated by the router. In this case, you need to set the values of IP address , Subnet mask , Gateway , Primary DNS server , and Secondary DNS server.
IP address| Specifies the IP address for the router to which the inverter WLAN network connects. The IP address must be in the same network segment as the router IP address.
Subnet mask| Specifies the router subnet mask.
Gateway| Specifies the router gateway address.
Primary DNS server| Specifies the address for the primary domain name service (DNS) server.
Secondary DNS server| Specifies the address for the secondary DNS server.

Table 6-6 Description of icons

—-End

6.2 Exporting Inverter and Smart Dongle Logs
Procedure
Step 1
Log in to the management system, click Settings in the upper-right corner to go to the System Settings page, and choose Log Export.
Figure 6-10 System Settings page

Step 2
Select devices and click Start Export to create an export task. When the export status is Succeeded, select the corresponding logs and click Save Log to save the logs locally.
Figure 6-11 Exporting and saving logs

—-End

6.3 Upgrading the Inverter and Smart Dongle Software
Prerequisites

• You have contacted Huawei technical support engineers to upload the upgrade package of the software.
• The FusionSolar app is recommended when the inverter is connected to the FusionSolar Smart PV Management System. The SUN2000 app is recommended when the inverter is connected to other management systems.
• You have downloaded and installed the FusionSolar app which can be obtained by searching for FusionSolar in Huawei AppGallery or scanning the QR code. https://intl.fusionsolar.huawei.com/pvmswebsite/nologin/assets/build/index.html#/jumppage
• SUN2000 APP: Search for “SUN2000” in Huawei AppGallery, download the latest installation package, and install the SUN2000 app by following the instructions.

Connecting to the Inverter over the App
Step 1
Ensure that the Smart Dongle to be upgraded is inserted into a running inverter. Wait for more than 2 minutes, remove the Smart Dongle, and connect the WLAN module, Bluetooth module, or USB data cable to the inverter.
NOTE
Perform this step if communication with the inverter over a WLAN module, Bluetooth module, or USB data cable is required.

Step 2
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 6-12 Device commissioning

Step 3
Connect to the inverter.
Figure 6-13 Connecting to the inverter

NOTE

• The inverter WLAN password can be changed on the Communication configuration screen. You can tap in the upper-right corner of the home screen to change the login password for Common User, Advanced User, Special User, and installer.
• If you enter wrong login passwords for installer for five consecutive times and the interval between two attempts is within 2 minutes, your account will be locked. Log in to the app again after 5 minutes.
• Use the initial password upon the first Log-in and change it immediately after login. To ensure account security, change the password periodically and keep the new password in mind. Not changing the initial password may cause password disclosure. A password left unchanged for a long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed. In these cases, the user is liable for any loss caused to the PV plant.

Step 4
Upgrade a device as prompted.
NOTE

• Prepare the upgrade package before upgrading the device.
• Delivering an upgrade command to an inverter may cause power grid connection failure of the inverter and affect the energy yield.

Figure 6-14 Upgrading a device

—-End
Connecting to the Smart Dongle over the App
NOTE
Only SDongleA-05 supports this upgrade mode.
Step 1
Run the FusionSolar app and go to the Device commissioning screen. (Perform this step only for the FusionSolar app.)
Figure 6-15 Device commissioning

Step 2
Connect the Smart Dongle.
Figure 6-16 Connecting the Smart Dongle

Step 3
Upgrade a device as prompted.
NOTE
Prepare the upgrade package before upgrading the device.
Figure 6-17 Upgrading a device

Over the WebUI
Step 1
Log in to the management system, click Settings in the upper-right corner to go to the System Settings page, and choose Upgrade Management. On the Device Upgrade tab page, click Add, and create an upgrade task.
Figure 6-18 Creating an upgrade task

Step 2
Set Upgrade Mode, Device type, Target version, and Device selection, and click Confirm to upgrade the devices.
NOTE
If the update after confirmation mode is selected, the device can be updated only after the user’s consent is obtained.
Figure 6-19 Device upgrade

6.4 Updating the Device List
When a device connected to the Smart Dongle is deleted or replaced, you need to update the plant device information on the Device Management page.
Prerequisites
The PV plant to be updated communicates properly with the FusionSolar Smart PV Management System.
Procedure
Step 1
On the home page of the management system, select the plant to be modified from the plant list.
Step 2
On the Device Management page, select the target device, and then delete or replace the device.
Figure 6-20 Device management

NOTE
Replacing inverters does not affect the total energy yield of the PV plant.
—-End

6.5 Replacing the Smart Dongle and the Master Inverter
6.5.1 Replacing the Smart Dongle
Replacing a Faulty Smart Dongle with a Smart Dongle of the Same Model
NOTE
If SDongleA-01, SDongleA-03, or SDongleA-05 is faulty, only SDongleA of the same model can be used to replace it.
Step 1
Remove the faulty Smart Dongle.
Step 2
Replace the SIM card. (Perform this step when the 4G communication mode is used.)

• If the purchased Smart Dongle has a built-in SIM card, replace the Smart Dongle without replacing the SIM card.
• If the purchased Smart Dongle does not have a built-in SIM card, use the SIM card in the faulty Smart Dongle.

Step 3
Install a new Smart Dongle onto the inverter where the faulty Smart Dongle was installed.
Step 4
Set the password for logging in to the WLAN. (Perform this step when the WLAN communication mode is used.)
—-End

Replacing a Faulty Smart Mobile-4G with an SDongleA-03
NOTE

• Replacing a Faulty Smart Mobile-4G-CN with an SDongleA-03-CN.
• Replacing a Faulty Smart Mobile-4G-EU with an SDongleA-03-EU.

Step 1
Check that the software version of the master inverter supports the SDongleA-03.
If the software version does not support the SDongleA-03, upgrade the software version of the master inverter.
Step 2
Remove the faulty Smart Dongle.
Step 3
Replace the SIM card. (Perform this step when the 4G communication mode is used.)

• If the purchased Smart Dongle has a built-in SIM card, replace the Smart Dongle without replacing the SIM card.
• If the purchased Smart Dongle does not have a built-in SIM card, use the SIM card in the faulty Smart Dongle.

Step 4
Set the password for logging in to the WLAN. (Perform this step when the WLAN communication mode is used.)
—-End

6.5.2 Replacing the Master Inverter
Step 1
When the MBUS is used for networking, use the app to change the cascading mode of the original master inverter to RS485 through Quick settings.
NOTE
Tap Search for Cascaded Inverters and exit after 5s.
Figure 6-21 Setting inverter cascading

Step 2
Remove the Smart Dongle and install it on the new master inverter.
Step 3
Set up a site and commission the new master inverter.
—-End

6.6 Troubleshooting Common Issues
Table 6-7 Common faults and troubleshooting measures

Huawei FusionSolar Smart PV Management System shows that the communication with the inverter is interrupted.| 1. The RS485 cables among inverters are loose or disconnected.
2. The PV string is not properly connected, and the inverter has no DC input.
3. The baud rate or RS485 address of the inverter is changed.
4. An inverter is replaced.
5. The inverter has been removed.
6. The Smart Dongle is faulty.| 1. Check that the RS485 cables among inverters are properly connected and tightened.
2. Check that the inverter is correctly connected and power on the inverter.
3. Check that the baud rate and RS485 address of the inverter are set correctly.
4. Check whether any inverter has been replaced. If yes, search for the new inverter on the management system.
5. If an inverter has been removed, search for inverters again on the management system.
6. Replace the Smart Dongle.
The SN of the Smart Dongle cannot be identified by the FusionSolar app.| The bar code is damaged and cannot be scanned.| Manually enter the SN on the Add Device screen on the FusionSolar app.
The devices connected to the Smart Dongle are not connected to the Huawei FusionSolar Smart PV Management System properly.| 1. Check whether the inverter software version meets the requirements. If not, upgrade the inverter to a specified version or later.
2. Check that the RS485 communications cables are connected properly.
3. Check that the RS485 communications parameters of the inverter are set correctly.
4. Check that the inverter communications parameters are correctly set.| If the inverters cannot be detected after troubleshooting, the Smart Dongle is faulty. Contact Huawei technical support.
Fault| Cause| Troubleshooting
---|---|---
After the Smart Dongle is replaced, the connection to the management system using the original SIM card fails.| The SIM card is bound to the original Smart Dongle.| Contact the carrier of the SIM card to unbind the SIM card from the Smart Dongle.

Acronyms and Abbreviations

A
app| Application
---|---
L
LCD| liquid crystal display
S
SN| Serial Number
U
USB| Universal Serial Bus

Copyright © Huawei Technologies Co., Ltd. 2021. All rights reserved.
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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
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Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided “AS IS” without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Copyright © Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd.
Address:
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Website:https://e.huawei.com
Issue 02 (2021-11-25)

Documents / Resources

| HUAWEI FusionSolar Smart PV Management System Connection [pdf] User Manual
FusionSolar Smart PV Management System, Connection
---|---

References

• Huawei Enterprise | Accelerate Industrial Intelligence

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