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Operating
6 Operating
This section includes operational methods of the unit and the display, safety instructions and regulations.
6.1 Front panel
Object
Description
A
LCD display
B
Function key
C
Green LED
D
Red LED
E
Yellow LED
6.2 LED display
Wolong inverters are equipped with three LEDs (green, red and yellow) which provide information about the
operating status.
Green LED:
The green LED lighting indicates that the inverter is active and working normally. The LED lights up in the morning,
when the intensity of the sun is sufficient, and goes out when it gets dark.
Red LED:
The red LED lighting indicates that the inverter has stopped feeding power into the grid due to a fault. The
corresponding fault information will display on the LCD (see the table below).
Yellow LED:
The yellow LED blinks during communication of the inverter with other devices through RS485. The yellow LED lights
continuously during the firmware updating.
LED
Green
Red
Yellow (blinking)
Yellow
All manuals and user guides at all-guides.com
State
Working normally
Fault including: output relay failure, EEPROM problem, SCI failure, output AC sensor
abnormal, GFCI device abnormal, Isolation failure, GFCI failure, grid frequency failure, grid
voltage failure, no utility & island, input voltage too high, output DC injection too high, fan
abnormal, temperature abnormal, consistent failure
Communication
Updating firmware
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