1 Check the current Grid voltage ,here is the follows :
SN BEGGCJ300K_BEGGCJ3019_BCGKD5D00R MAC36KTL3-XL 2PCS MAC5KTL3-XL 1PCS L1 - L2 - 222.6V L1 - L3 - 215.9V L2 - L3 - 227V L1 - G - 223.4V L2 - G - 0.534V L3 - G - 226.3V you will find the L2-G is very low , maybe updated the software to the latest version effects . NOTE: it is usually called "Corner Ground Delta Connection " Grid in philippines .
2 Prepare the Serial commissioning tool (software and connection wire ) , and verify the communication .
2.1 ↑↑↑ is the serial commissioning software, Install on you windows PC ; 2.2 prepare the serial wire (inverter will present the correspond serial terminal ), but you need buy the USB-serial wire yourself ,like the follow ↓↓↓ (normally the peripheral firmware will be automatically installed on your computer)
2.3 communicate: ↑↑↑ if there is a lot of data above the red rectangle area , it means communicate successfully ,go next . if not communicate successfully , you must check the wire ,check the inverter address ,check the terminal and use Google to make sure the communication is successful.
3 Prepare the latest version or special version of inverter program to update
3.1 ↓↓↓ here is the software packet for the MAC 25KTL3-X MAC35KTL3-X (updated on 2023.09.07) : version TKAA1609 there is two software in it ( one is [043.1212219.bin] ,another one is [043.1223815.hex] **warning: the software are not universal ， it is only used for a 2023.09.08 project in philippines with SN BEGGCJ300K_BEGGCJ3019_BCGKD5D00R , want to know more pls contact snow : [email protected] or my_phone +8613062787195
3.2 use shinebus software to update the inverter firmware
- 3.2.3 Verify if updated successfully
3.3 last step , watch if the inverter turn into normal use thirty minutes to watch
if it work properly , thats OK IF it work not properly ,,, try other way to solve .