Trannergy TRM025KTL, Руководство пользователя, Страница: 21 / 39

20 User Manual

LCD
240×160 MONO LCD.

Function keys

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
TRM inverter 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 250V,
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.
For details, please refer to table as below:
LED Status Detailed Message
Green
Normal The inverter is working normally.
Yellow
Communication state
The inverter is communicating with other
devices.
Burning software/
Software upgrade
The firmware is upgraded.