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6.3. GDFI Fault
Before the inverter connects to the Grid, it will detect the impedance (effective resistance) of
the solar PV + to Ground, and the impedance of the solar PV - to ground. If any of the
impedance values are less than 33kΩ, the inverter will not connect to the Grid and will report
an error F24 on its LCD.
7. MAINTENANCE
The inverter is low maintenance. However, it is important that at least twice a year (for
dusty environments this may need to be carried out weekly) all the cooling fans, air
ducts are cleaned and dust free.
Check if there are no fault codes and Lithium battery communication is correct.
Weekly cleaning statement: Suggest micromesh filters as an available option, micro
ants here are a real problem.
APPENDIX A
Description
CAN
Pin 4: CAN-H
Pin 5: CAN-L
Pin 1, 3, 6, 7, 8: NC
RS485
Pin 1: RS485B
Pin 2: RS485A
Pin 3: GND
Pin 6: GND
Pin 7: RS485B
Pin 8: RS485A
Pin 4, 5: NC
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