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SUN2000-(50KTL, 60KTL, 65KTL)-M0 User Manual

This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and SUN2000-65KTL-M0 in terms of its 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).
Working Modes

Working Modes

The SUN2000 can work in Standby, Operating, or Shutdown mode.

Figure 2-7 SUN2000 working modes
Table 2-1 Working mode description

Working Mode



The SUN2000 enters Standby mode when the external environment does not meet the requirements for starting the SUN2000. In Standby mode:
  • The SUN2000 continuously performs self-check and enters Operating mode once the operating requirements are met.
  • The SUN2000 enters Shutdown mode after detecting a shutdown command or a fault after startup.


In Operating mode:
  • The SUN2000 converts DC power from PV strings into AC power and feeds the power to the power grid.
  • The SUN2000 tracks the maximum power point to maximize the PV string output.
  • The SUN2000 enters Shutdown mode after detecting a fault or a shutdown command, and enters Standby mode after detecting that the PV string output power is not suitable for connecting to the power grid and producing power.


  • In Standby or Operating mode, the SUN2000 enters Shutdown mode after detecting a fault or shutdown command.
  • In Shutdown mode, the SUN2000 enters Standby mode after detecting a startup command or that the fault is rectified.
Updated: 2019-10-12

Document ID: EDOC1100016052

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