Huawei SUN2000 User Manual page 23

SUN2000 (8KTL-28KTL)
User Manual
Figure 2-13 Working modes
Figure 2-13
Table 2-6
Working
Mode
Standby
Operating
Shutdown
Issue 07 (2014-07-30)
describes the operations shown in
Description
The SUN2000 enters the standby mode when the external environment does
not meet the requirements for starting the SUN2000. In standby mode, the
SUN2000 continuously performs the self-check and enters the operating
mode once the operation requirements are met.
The standby mode involves four phases: initialization detection phase,
insulation resistance detection phase, sunlight detection phase, and no
sunlight phase.
If the SUN2000 receives a shutdown command or detects a fault after
startup in this mode, it enters the shutdown mode.
In operating mode,
 The SUN2000 converts DC power from PV strings into AC power and
feeds the power to the power grid.
 The SUN2000 always tracks the maximum power point to maximize the
PV string output.

The SUN2000 enters the shutdown mode after detecting a fault or a
shutdown command, and enters the standby mode after detecting that the
PV string output power does not meet the requirements for grid-tied
electricity generation.
The SUN2000 enters the shutdown mode after detecting a fault or receiving
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Table 2-6.
2 Overview
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