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Cas de diagnostic :

Event number 13, 1302 Waiting for grid voltage > Grid failure > Check AC circuit breaker

Waiting for grid voltage > Grid failure > Check AC circuit breaker

Event numbers 13 and 1302 indicate that the Sunny Tripower has discovered a disturbance in the AC cabling and therefore cannot connect to the grid. Possible causes of this are errors in the AC cabling or an incorrect country setting.

Corrective measures for system operators:

  • Contact an installer or an SMA solar power professional. The subsequent steps require the specialist knowledge of an electrically qualified person or installer.

Corrective measures for installers:

DANGER! The tasks described below may only be performed by electrically qualified persons:

Check the complete AC cabling:

  • Ensure that the AC cable is correctly connected (see the operating manual of the inverter) and the AC cable is intact.
  • Check the fuses

Check the AC voltages on the inverter connection:

  • Measure the AC voltage between L - N, L - PE and N - PE.
  • There should be no voltage between N - PE. Only in TT grid systems there may be voltage differences between N and PE; these must be kept to a minimum. A maximum of 20 V – 30 V is permitted in TT grid systems.
    Information: Be sure to use a suitable measuring device such as a multimeter. Voltage detectors (e.g. Duspol) are not suitable for these measurements.

All work on the inverter and the cabling of the PV array must be carried out by an electrically qualified person. SMA accepts no liability for the information and solutions given in the Online Service Center. Additional information can be found in our Online Service Center’s terms and conditions of use.