Huawei SUN2000 User Manual page 23

SUN2000-(3.8KTL-11.4KTL)-USL0
User Manual
Working Modes
Figure 2-12 Working modes
Table 2-5 Working mode description
Working
Mode
Standby
Operating
Issue 01 (2018-05-21)
Description
The SUN2000 enters Standby mode when the external environment does not
meet the requirements for starting the SUN2000. In Standby mode:
 The SUN2000 continuously checks its status 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 controls optimizers to track 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.
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