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A075 alarm in siemens master drive

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(@click2electro)
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Cause : Ls, Rr Dev. comes when the measured values of the leakage measurement or of rotor resistance deviate significantly.

  1. Usually the leakage reactance P122 is the average value resulting from the measured values in r546.1...12, and the rotor resistance r126 from the values in r542.1..3.
  2. If individual measured values significantly deviate from the average values, they are automatically not taken into account for the calculation (for RI) or the value of the automatic parameterization remains (for Ls).
  3. It is only necessary to check the results for their plausibility in the case of drives with high requirements on torque or speed accuracy.
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