SOFAR (Shenzhen SOFARSOLAR) · PV inverters · SOFAR 3.3–12KTLX-G3 (three-phase grid inverter)
ID115Frequency loading
Name in the manufacturer's documentation (fault list): Frequency loading
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Steps given by the manufacturer (source text)
- If it occurs frequently, please check whether the grid voltage and grid frequency are within the allowable range of the inverter[2]
- If not, please contact the customer service of SOFARSOLAR[3]
- If yes, please check whether the connection between the circuit breaker at the AC side and the output cable is normal[4]
- If the grid voltage and grid frequency are within the allowable range of the inverter, and the AC side wiring is confirmed to be correct, the alarm still appears frequently With the approval of the local power operator, please contact the customer service of SOFARSOLAR to modify the protection points of over / under voltage and over / under frequency of inverter grid[5]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 73 official manufacturer document quote verified
Frequency loading
- [2] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 73 official manufacturer document quote verified
If it occurs frequently, please check whether the grid voltage and grid frequency are within the allowable range of the inverter
- [3] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 73 official manufacturer document quote verified
if not, please contact the customer service of SOFARSOLAR
- [4] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 73 official manufacturer document quote verified
if yes, please check whether the connection between the circuit breaker at the AC side and the output cable is normal
- [5] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 73 official manufacturer document quote verified
if the grid voltage and grid frequency are within the allowable range of the inverter, and the AC side wiring is confirmed to be correct, the alarm still appears frequently With the approval of the local power operator, …