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Er1 fault error code in Mitsubishi CS80 drive

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(@click2electro)
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Cause : Parameter write error comes when parameter setting was attempted while Pr.77 Parameter write selection is set to disable parameter write. Overlapping range has been set for the frequency jump.

  1. Check the Pr.77 Parameter write selection setting.
  2. Check the settings of Pr.31 to Pr.36 (frequency jump).
  3. Check the connection of PU and the inverter.
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