Sungrow SG250K3, Operation Manual, Page: 16 / 66

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2.3. Status and Control Elements
Figure 2-3 shows the locations of basic control and information display elements
that help users perform control and monitoring tasks.
Figure 2-3 External appearance of SG250K3
Table 2-1 Data and control components
Component Name Comments
LED Indicators Power, Operation and Fault
touch screen control panel Display data and perform control functions
DC breaker DC side circuit breaker switch
AC breaker AC side circuit breaker switch
Emergency stop button Shut down the inverter when pressed down
Doorlock Close or open the case of SG250K3
Start/Stop Switch The inverter will only start when this switch is in the start position
2.3.1. The LED Indicators
There are 3 large LED indicators in the SG250K3 enclosure, as can be seen in
Figure 2-3; there detail explanations are listed in Table 2-2:
Table 2-2 Large LED definitions
Indicator Color Definitions
Power Green The power supply of control circuits is OK
Operation Green The inverter is running in grid-connected mode
Fault Red A fault is occurred and not solved