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Specifies the space and angle requirements for inverter installation.
Step-by-step guide for mounting the inverter onto the bracket.
Pre-installation checks and notices for connecting cables.
Procedure for correctly connecting the protective earth (PE) cable.
Guide on connecting the AC output power cable to the inverter.
Steps for connecting the DC input power cables from PV modules.
Instructions for installing communication dongles (WLAN-FE or 4G).
Provides general instructions for connecting signal cables.
Connects RS485 communication cables for inverter cascading.
Connects the signal cable for the Smart Power Sensor.
Connects the dry contact signal cable for grid scheduling.
Check the operating status of the inverter by observing its LEDs.
Methods to download and install the FusionSolar mobile application.
Steps for creating an installer account in the FusionSolar system.
Process for setting up a PV plant and assigning an owner in the app.
Guide to configuring the physical layout of PV optimizers.
Explains networking scenarios involving SmartLogger and inverters.
Addresses common questions regarding device commissioning.
Procedure for resetting the inverter's password.
This document provides a comprehensive guide for the SUN2000-(8KTL-20KTL)-M2 series of solar inverters, covering installation, electrical connections, commissioning, and maintenance. It emphasizes safety precautions and adherence to local regulations throughout the process.
The SUN2000-(8KTL-20KTL)-M2 is a grid-tied PV power system inverter designed to convert direct current (DC) from solar panels into alternating current (AC) for grid consumption. It features multiple DC input terminals to accommodate various PV string configurations, an AC output port for connection to the power grid, and a ground screw for earthing. The inverter includes a DC switch for safe disconnection of the PV input, and a communications port (COM) for monitoring and control. For enhanced functionality, it supports optional Smart Dongles (GPRS/4G/WLAN-FE) for communication with management systems, enabling remote monitoring and data exchange. The inverter also incorporates dry contact interfaces for grid scheduling signals and rapid shutdown switch signals, allowing for integration into broader energy management systems.
Installation and Setup: The inverter is designed for straightforward installation, with clear guidelines for mounting angles and spatial requirements to ensure proper ventilation and access. It comes with an anti-theft lock mechanism for security. The quick guide details the assembly of DC connectors and the connection of various cables, including PE, AC output, DC input, and optional signal cables (RS485 communications, Smart Power Sensor, Rapid shutdown switch, and Grid scheduling). Specific instructions are provided for different cable types and their proper termination to prevent device malfunction or damage. For regions like Australia, a screw for locking the DC switch is included to prevent accidental operation, adhering to local standards.
Communication and Networking: The SUN2000-(8KTL-20KTL)-M2 supports flexible communication options. Users can install a WLAN-FE Smart Dongle (SDongleA-05) for Wi-Fi and Ethernet communication or a 4G Smart Dongle (SDongleA-03) for cellular connectivity. These dongles facilitate communication with Huawei's FusionSolar management system, enabling remote monitoring, data logging, and system control. The document provides detailed steps for installing and configuring these dongles, including SIM card insertion for 4G models and network cable assembly for WLAN-FE.
System Commissioning: Commissioning the system involves downloading the FusionSolar app, which allows installers to register accounts, create PV plants, and set up the physical layout of Smart PV Optimizers if they are part of the system. The app provides two scenarios for setting the physical layout:
Monitoring and Status Indication: The inverter features LED indicators on its front panel to display its operating status, including running, communication, and device replacement indications. These LEDs provide quick visual feedback on the inverter's health and operational mode (e.g., grid-tied, off-grid, fault conditions). The Smart Dongles also have their own LED indicators to show their connection status, power status, and communication with the management system.
Safety Precautions: The manual emphasizes critical safety measures throughout the installation and operation phases. It warns against drilling into walls without checking for buried water pipes and power cables. It also highlights the importance of using insulating tools and wearing appropriate personal protective equipment (PPE) during installation. Before connecting any cables, users are instructed to ensure that the DC switch on the inverter and all other connected switches are in the OFF position to prevent electric shocks from high voltage.
Troubleshooting and Error Handling: The LED indicators serve as a primary tool for diagnosing issues. Different blinking patterns and colors signify various operational states or fault conditions, such as DC environmental alarms (e.g., high string input voltage, reverse connection, low insulation resistance) or AC environmental alarms (e.g., grid undervoltage, overvoltage, overfrequency). The document provides a clear table explaining the meaning of each LED status, aiding in quick identification of problems.
Password Reset: A detailed procedure for resetting the inverter's password is provided, which is crucial for maintaining security and regaining access if the password is lost. This process involves a specific sequence of turning AC and DC switches ON and OFF within a defined timeframe, followed by connecting to the inverter's WLAN hotspot via the FusionSolar app to set a new password.
Customer Support: The manual includes a comprehensive list of customer service contacts, including regional phone numbers and service support email addresses, to assist users with any technical issues or inquiries. This ensures that users have access to professional help when needed, facilitating efficient maintenance and problem resolution.
Firmware Upgrades and Documentation: The document notes that information is subject to change due to version upgrades and encourages users to download the latest version of the manual by scanning a QR code. This ensures that users always have access to the most current and accurate information for their device. The availability of quick guides for Smart Dongles (WLAN-FE and 4G) further simplifies the setup and operation of these communication modules.
| Max. Efficiency | 98.6% |
|---|---|
| Protection Rating | IP65 |
| Cooling | Natural convection |
| Operating Temperature Range | -25°C to 60°C |
| Rated AC Voltage | 230V |
| European Efficiency | 98.0% |











