background image

Figure 6-19 Device upgrade

----End

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

FusionSolar Smart PV Management System

Connection

User Manual (Inv SDongleA)

6 Maintenance

Issue 02 (2021-11-25)

Copyright © Huawei Technologies Co., Ltd.

62

Summary of Contents for SDongleA-03

Page 1: ...FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA Issue 02 Date 2021 11 25 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...cribed 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 prep...

Page 3: ...d as follows Symbol Remarks Indicates a hazard with a high level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury Indicates a hazard with a low level of risk which if not avoided could result in minor or moderate injury Indicates a potentially hazardous situation which if ...

Page 4: ...hanges 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 FusionSolar Smart PV Management System Connection User Manual Inverte...

Page 5: ... PV Plant over the App 25 5 1 2 Creating a PV Plant over the WebUI 27 5 2 Setting Grid tied Control Parameters 33 5 2 1 Setting Parameters over the App 33 5 2 2 Setting Parameters over the WebUI 41 6 Maintenance 47 6 1 Modifying Inverter Communications Parameters 47 6 1 1 WLAN Communication Networking 47 6 1 2 4G Communication Networking 51 6 1 3 FE Communication Networking 53 6 2 Exporting Invert...

Page 6: ...bleshooting Common Issues 65 7 Acronyms and Abbreviations 67 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA Contents Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd v ...

Page 7: ...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 i...

Page 8: ...ce 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 ut...

Page 9: ...d 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 poweri...

Page 10: ...ar 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 Networki...

Page 11: ...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...

Page 12: ... 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 cha...

Page 13: ...t 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 Figure 2 2 Networking description FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 2 Introduc...

Page 14: ...e Prepared by the customer Device supplier Inverter Master inverter SUN2000 2KTL 5KTL CN or SUN2000 2KTL 5KTL 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 ...

Page 15: ...st 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 loc...

Page 16: ...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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 2 Introduction to the Solution Iss...

Page 17: ...L 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 wit...

Page 18: ...e 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 Model...

Page 19: ...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 ...

Page 20: ... 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 2 Introduction to the Solution Issue 02 2021 1...

Page 21: ...ew 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 Not...

Page 22: ...ey 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...

Page 23: ...re 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 3 Cable Connections Issue 02...

Page 24: ...necting cables to the DTSU666 H three phase three wire FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 3 Cable Connections Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 18 ...

Page 25: ...p 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 3 Cable Connections Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 19 ...

Page 26: ...art 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 3 Cable Conn...

Page 27: ...r 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 ...

Page 28: ...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 connect...

Page 29: ...r 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 Bl...

Page 30: ... 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 4 System Power On and Commissioning Issue 02 2021 11 25 Copyright Huawei Technolog...

Page 31: ...ice 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...

Page 32: ...re 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 l...

Page 33: ...ith 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 5 Site Deployment and Commissioning Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 27 ...

Page 34: ...face 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 inform...

Page 35: ...ant 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 5 Site Deployment and Commissioning Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 29 ...

Page 36: ...sic 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 Parameter Description Company Company to which the new PV plant belongs Plant name Name of the new PV plant Grid connection time Start date of the safe operation of the PV plant FusionSolar Smart PV Management System Connection...

Page 37: ...nformation 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 Stri...

Page 38: ... 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 refe...

Page 39: ...rs 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 Q...

Page 40: ...usionSolar 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 FusionSolar Smart PV Manage...

Page 41: ...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 us...

Page 42: ... 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 FusionSolar Smart PV Management Syste...

Page 43: ...te 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 Communica...

Page 44: ...he 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 p...

Page 45: ...ween 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 po...

Page 46: ... 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 Communicati...

Page 47: ... 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...

Page 48: ...lect 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 5 Site Deployment and Commissioning Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 42 ...

Page 49: ... 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 wit...

Page 50: ...e 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 multip...

Page 51: ...d 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 SmartL...

Page 52: ...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...

Page 53: ...l the SUN2000 app by following the instructions NOTE In areas such as the UK where the FusionSolar app is not available or when a third party 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...

Page 54: ...ning Step 2 Connect to the inverter Figure 6 2 Connecting to the inverter FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 48 ...

Page 55: ...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 T...

Page 56: ... 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 serve...

Page 57: ... 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 51 ...

Page 58: ...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 com...

Page 59: ...ni ng Enter the PIN No SIM card Not connected signal strength Connection failed Connection is successful Icon N A N A Meani ng Enter the PUK Failed to read the card The signal is poor or the subscriber is in arrears Connected signal strength N A N A 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 FusionSo...

Page 60: ...ning Step 2 Connect to the inverter Figure 6 8 Connecting to the inverter FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 54 ...

Page 61: ...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 T...

Page 62: ... 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 Icon Router Management system Meani ng Connection...

Page 63: ...pp 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 SUN2000 APP Search for SUN2000 in Huawei AppGallery download the ...

Page 64: ...ep 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 FusionSolar Smart PV Management System Connection User Manual Inverters S...

Page 65: ... 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 fai...

Page 66: ...Connecting the Smart Dongle Step 3 Upgrade a device as prompted NOTE Prepare the upgrade package before upgrading the device FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 60 ...

Page 67: ...e 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 ...

Page 68: ...tes 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Iss...

Page 69: ... 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 ...

Page 70: ...rking 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 FusionSolar Smart PV Management System Connection User M...

Page 71: ...tem 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 M...

Page 72: ...e 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 FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 6 Maintenance Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 66 ...

Page 73: ...n L LCD liquid crystal display S SN Serial Number U USB Universal Serial Bus FusionSolar Smart PV Management System Connection User Manual Inverters SDongleA 7 Acronyms and Abbreviations Issue 02 2021 11 25 Copyright Huawei Technologies Co Ltd 67 ...

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