Information
In fault mode, there can be different error messages displayed in
the LCD due to different faults. Please refer to Chapter 10 for
reference.The first line of LCD display can be changed by knock
on the LCD screen. The second line automatically changes in the
interval of 2 or 4 seconds as above Table.
6.3.1.2. The second line of LCD
6.3.1.2. The second line of LCD
CYCLE DISPLAY
DISPLAY TIME/S
REMARK
Model number of the inverter
2
Firmware version of the inverter
2
Serial number, which is also shown on
2
Energy generated today.For accurate
energy to get the FIT payment, please
refer to your meter
4
Total generated energy since installation.
For accurate energy to get the FIT payment,
please refer to your meter
4
PV input power
4
PV voltage (PV) and Bus voltage (B)
4
Grid voltage (AC) and frequency (F)
4
Enable auto test function
4
Enable auto test
Set Language
Set display language
4
Set contrast
Set LCD contrast
4
Set COM Address
Set communication address
4
6.3.2. LCD control
To save power, the LCD display's background light will turn off automatically in 10
seconds. Single knock will turn on the background light. The display on the inverter
can be controlled by knocking the sound control panel in front of it.
6.4. Independence of two MPPT
The Growatt MTL includes dual input with independent MPPT, high speed and
precise MPPT algorithm for real-time power tracking and energy harvesting, as well
as transformerless operation for high performance efficiencies. The two MPPT
channel can track the maximum power point independently when inverter gets
separate input from solar panel .
Due to the topology design of the Growatt MTL. When the MPPT track the maximum
power, it will change the current of PV panel, and then, the output voltage and
power of PV panel will be changed at the same time. The inverter will continue to
compare output power to previous power, and then control the output current of the
PV panel. Two MPPT adopt separate control, so they are independent of each other.
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