OPERATION OF THE DEVICE
SOFAR 3 ... 6KTLM-G3 67
7.5 Firmware update
1. Switch the DC and AC switches off and then remove the
communication cover. If an RS485 line has been connected,
ensure that the nut is loosened. Ensure that the communication
line is not energised. Remove the cover to prevent the connected
communications connector from becoming loose.
2. Insert the USB stick into the computer.
3. SOFARSOLAR will send the firmware update to the user.
4. Unzip the file and copy the original file to a USB stick. Attention:
The firmware update file must be in the “firmware” subfolder!
5. Insert the USB flash drive into the USB interface of the inverter.
6. Switch on the DC switch and go to menu item “5. Software update”
on the LCD display.
7. Enter the password (the standard password is 0715).
8. The system will then successively update the main DSP, auxiliary
DSP and ARM processors. Pay attention to the displays.
9. If an error message appears, switch off the DC switch and wait
until the LCD screen goes out. Then, switch the DC switch back
on and proceed with the update from step 5.
10. After the update is complete, switch the DC switch off and wait
until the LCD screen goes out
11. Re-establish a watertight communication connection
12. Switch the DC and AC circuit breaker back on
13. You can check the current software version in item “3. Software
version” of the SystemInfo menu.
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