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Sunny Central CP Error - Disturbance on the Utility Grid

  1. Grid voltage error
  2. Check the grid voltage
  3. Check connections
  4. Ensure the grid is stable
  5. Make sure all AC connections are tight. 



  • 0103 - Grid voltage is too high. Over voltage detected by redundant monitoring.
  • 0104 - Grid voltage is too high. Over voltage detected by standard monitoring.
  • 0203 - Grid voltage is too low. Under voltage detected by redundant monitoring.
  • 0204 - Grid voltage is too low. Under voltage detected by standard monitoring.
  • 0205 - Not permitted grid frequency change or grid synchronization not possible
  • 0404 - Frequency change per second too high for grid operation
  • 0502 - Power frequency is too low. Power frequency disturbance detected by standard monitoring.
  • 0503 - Power frequency is too high. Power frequency disturbance detected by standard monitoring.
  • 0504 - Power frequency is too low. Power frequency disturbance detected by redundant monitoring.
  • 0505 - Power frequency is too high.Power frequency disturbance detected by redundant monitoring.
  • 0506 - The inverter has detected a stand alone grid and has disconnected from the utility grid.
  • 0801 - One line conductor of the utility grid has failed.
  • 0802 - One line conductor of the utility grid has failed.
  • 1301 - Left-hand rotating magnetic field isconnected.
  • 1500 - The conditions for grid reconnection have not yet been reached aftera grid error.

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