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AE91 warning in ABB ACS880 drive

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Cause : Fan lifetime exceeded comes when warning limit for fan lifetime (parameter 206.08) has been exceeded.

See the auxiliary code for indication of module IDs that contain fans that have exceeded their lifespan. Auxiliary code is a bit word where bit

  1. 0 indicates CIO-01 module assigned to node ID
  2. 1. Replace the failing fan and reset the fan data via parameter group 207 I/O bus service.
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