Absolute Position Loss without APR Faults

The Absolute Position Recovery is not retained after the following:
  • A project is exported, saved as a .L5K or .L5X, and imported (downloaded).
  • A major non-recoverable fault (MNRF).
  • A power loss.
  • On a Control Logix 5570 controller without an ESM
    Tip:
    The APR can potentially be restored from a Secure Digital Card on a
    ControlLogix
     5570 Controller (if a 1756-ESM is not present).
  • A download of an axis that does not have its home bit set.
  • Power cycling of an incremental encoder.
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