INCORRECT PHASE ROTATION

UnclassifiedGeneral

What This Code Means

EHR displays 'Incorrect phase rotation' error; EHR shows 'Incorrect phase rotation' error; System shutdown; EHR shows 'Incorrect phase rotation' alarm; Equipment shutdown

Possible Causes

  • Incorrect wiring of the phase distribution in the input socket
  • Phase distribution of the electrical distribution grid is unknown or incorrect
  • Incorrect phase sequence
  • Incorrect distribution of phases when wiring an electrical distribution grid
  • Phase distribution of the AC electrical distribution grid is unknown or incorrect
  • One of the phases has been disabled

Suggested Actions

  1. 1Interchange phases at the input socket until the EHR does not show the error
  2. 2Wire the input socket according to the phase distribution image
  3. 3Interchange the phases until the EHR does not show the error
  4. 4Change the phases at the input until the EHR does not show the 'Incorrect phase rotation' alarm
  5. 5Ensure correct phase arrangement when distributing phases in the busbar
  6. 6Interchange the phases until the EHR does not show the 'Incorrect phase rotation' error

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