Axpert MKS-4000/KS-5000 Service manual
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4.4 COMM board
This inverter/charger is equipped with a communication port to communicate with a PC with
corresponding software. Please use supplied communication cable to connect to communication port of
this inverter and RS-232 port of the PC.
4.5 LED board
The LED display panel includes there indicators and four functional keys.
4.6 MPPT board
The MPPT board consists of SPS, BUCK converter, MCU control. It integrated the MOSFET driver board
and SPS driver board on it. Many semiconductors and easy-failure components on the board, so it should
be play more attention when the system is abnormal.
5. Interface
The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes
three indicators, four function keys and a LCD display, indicating the operating status and input/output
power information.
5.1 LED Indicator
LED Indicator
Messages
LCD display
LED indicators
Function keys
