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F560 fault in ABB DCS880 drive

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F560 fault in ABB DCS880 drive indicates Power unit unbalanced current. This means the unbalanced current between hard parallel connected power units is excessive. 

  1. Check that the mains and motor cable routing is according to the specification for hardparallel configurations.
  2. Check the branch fuses.
  3. Check the thyristors.
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