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SUN2000-(100KTL, 110KTL, 125KTL) Series User Manual

This document describes the SUN2000-125KTL-M0,SUN2000-110KTL-M0,SUN2000-100KTL-M0,SUN2000-100KTL-M1 and SUN2000-100KTL-INM0 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting. BOM number: 01074693, 01074694, 01074695, 01074695-001 and 01074695-002.

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Working Modes

Working Modes

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

Figure 2-13 Working modes
Table 2-2 Working mode description

Working Mode



The SUN2000 enters Standby mode when the external environment does not meet the operating requirements. In Standby mode:

  • The SUN2000 continuously performs status check and enters the 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.
  • If the SUN2000 detects a fault or a shutdown command, it enters the Shutdown mode.
  • The SUN2000 enters Standby mode after detecting that the PV string output power is not suitable for connecting to the power grid for generating 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: 2019-12-25

Document ID: EDOC1100087908

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