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Sunny Central CP Errors - Disturbance on the PV Array

  • 3403 PV array voltage is too high. 
  • 3404 Open-circuit voltage is too high.
  • 3406 The DC voltage is too high. 
  • 3501 The insulation monitoring device has measured a too low grounding resistance.
  • 3502 The GFDI has tripped. Check the PV array for ground faults.
  • 3504 The insulation monitoring device has detected an insulation error.If the parameter IsoErrIgn is set toOn, this error is ignored.W W ‒ • Check the PV array for ground faults.
  • 3507 A ground fault has occurred on the ungrounded terminal of the PVarray.Q Q ‒ • Check the PV array for ground faults.
  • 3510 The inverter has detected an insulation error on the inverter bridge.Q Q ‒ • Check the PV array for ground faults.
  • 3511 The inverter has detected an insulation error.W W ‒ • Check the PV array for ground faults.3512 The Remote GFDI has detected apermanent ground fault.Q Q ‒ • Check the PV array for ground faults.
  • 3515 A ground fault detected bySoft Grounding has been ignored.W W ‒ • Check the PV array for ground faults.3517 Insulation measuring is being performed.W W ‒ ‒
  • 3520 An insulation fault has occurred and has been fixed.
  • 3601 Leakage current to ground has occurred in the PV array or the threshold defined in parameterRisoCtlWarn has been reached.W W ‒ • Check the grounding and equipotential bonding.• Check the module wiring and system design.• Check the parameter RisoCtlWarn.
  • 3803 The PV array current is too high. 1 min D ‒ • Check the DC input current.• Check the module wiring and system design.
  • 4003 Reverse currents detected in the PV array or DC connection polarity reversed.30 s Q ‒ • Check the PV modules for short circuits.• Check the module wiring and systemdesign.• Check the DC terminals for correctpolarity.• Check the functionality of the entirestring.


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