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F091 fault in siemens master drive

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(@click2electro)
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Cause : Mld Time comes when the rotating measurement takes longer than programmed in a measured status due to load torque too high, load torque not uniform or ramp-function generator disabled.

  1. Eliminate the cause and re-start the measurement (power up the converter again).
  2. If it re-occurs, replace CU, or replace the unit (Compact PLUS).
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