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SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL) User Manual

This document describes the SUN2000-(29.9KTL, 33KTL-A, 36KTL, 42KTL) in terms of their installation, electrical connections, commissioning, maintenance, and troubleshooting.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).



  1. Obtain the required upgrade package from Huawei technical support website (for example, SUN2000 V200R002C00SPCXXX).
  2. Decompress the upgrade package.

    After obtaining the upgrade package, decompress the package and ensure that the extracted files include:
    • config.txt
    • config_arm9.txt
    • sun_lmt_mgr_cmd.emap (This is a boot script file.)
    • SUN2000.bin
    • SUN2000_CPLD.bin
    • SUN2000_FE.bin
    • SUN2000_Master_Release.bin
    • SUN2000_Slave_Release.bin
    • vercfg.xml
    • When the login password of the SUN2000 APP is the initial password (00000a), there is no need to perform 35.
    • When the login password of the SUN2000 APP is not the initial password, perform 37.

  3. On the SUN2000 APP, tap Inverter Command Settings to generate a boot script file. For details, see the SUN2000 APP User Manual.
  4. Import the boot script file to a PC.
  5. Replace the boot script file in the upgrade package with the one generated by the SUN2000 APP.
  6. Copy the extracted files to the root directory of the USB flash drive.
  7. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

    Verify that the ciphertext in the boot script file matches the login password of the SUN2000 APP. If they do not match and you insert the USB flash drive for five consecutive times, the user account will be locked for 10 minutes.
    Table 7-4  LED indicator description

    LED Indicator



    Green off

    There is no operation with a USB flash drive.

    Blinking green at long intervals (on for 1s and then off for 1s)

    There is an operation with a USB flash drive.

    Blinking green at short intervals (on for 0.125s and then off for 0.125s)

    An operation with a USB flash drive has failed.

    Steady green

    An operation with a USB flash drive is successful.

  8. (Optional) The system automatically restarts when the upgrade is completed. All LED indicators turn off during the restart. After the restart, the green indicator is blinking at long intervals (on for 1s and then off for 1s) for 1 minute until it becomes steady on, which indicates that the upgrade is successful.


    The SUN2000 can also be upgraded through the Inverter Update in the SUN2000 APP. For details, see the SUN2000 APP User Manual.

Updated: 2019-08-02

Document ID: EDOC1100019925

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