S Series User Manual www.fox-ess.com P a g e | 20
- Wait for one minute after the inverter reconnects to grid.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek for help from us if it does not go back to normal state.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek for help from us if it does not go back to normal state.
- Disconnect DC and AC connector, check the surrounding equipment on the
AC side.
- Reconnect the input connector and check the state of inverter after
troubleshooting.
- Please seek for help from us if it does not go back to normal state.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek for help from us if it does not go back to normal state.
- System will reconnect if the grid is back to normal.
- Or seek for help from us if it does not go back to normal state.
- Wait for one minute, grid may go back to normal working state.
- Make sure that grid voltage and frequency complies with standards.
- Or, please seek for help from us.
- Please check grid-connection, e.g. wires, interface etc.
- Checking grid usability.
- Or seek for help from us.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek for help from us if it does not go back to normal state.
- Wait for one minute, grid may go back to normal working state.
- Make sure that grid voltage and frequency complies with standards.
- Or, please seek for help from us.
- Disconnect PV (+), PV (-) with DC.
- After the LCD switches off, reconnect and check again.
- Please seek for help from us if it cannot go back to normal state.
- Check the impedance among PV (+), PV (-) and ground. Impedance should
be >1Mohm.
- Please seek for help from us if it cannot be detected or the impedance is
<1Mohm.
- Check the voltage of neutral and PE.
- Check AC wiring.
- Restart inverter, if error message persists, seek for help from us.