20 User Manual
OK Button: confirm the selection.
UP Button: move cursor to up selection or increase the values.
DOWN Button: move cursor to down or decrease the values.
ESC Button: exit current menu into main menu.
5.2. LED Display
TRB4000TL/5000TL/6000TL/8000TL/9000T/010KTL are equipped with three
LEDs including “Green”, “Yellow” and “Red” which provide information about
various operating status.
Green LED
The green LED lighting indicates that inverter is active and working
normally. Otherwise, it indicates inverter shuts down or malfunction
happens.
When the grid shows 380V/50Hz and input voltage generated by PV
modules is above 200V, the green LED lights up.
Normally, this LED begins to light up in the morning when the sunshine
intensity is enough and goes out when it gets dark.
Yellow LED
The yellow LED flashes during inverter communicating with other
devices including DLU and PC etc through RS485 and goes out after the
communication finishes.
The yellow LED keeps on lighting during the software update; otherwise,
inverter doesn’t communicate with other devices, or burn, update the
firmware etc.
Red LED
The red LED indicates that inverter has stopped feeding power into the
grid because of fault, and the exact fault information will display on the
LCD at the same time.
The faults as follows in the table will activate the red LED.
