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ErrorLib — Industrial Fault Code Library

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65A1

FBA A parameter conflict

ABB · ACS880

What does 65A1 mean?

The drive has encountered a conflict where a functionality requested by the PLC via Fieldbus Adapter A is either not available on the drive or has not been activated in its configuration. This prevents proper fieldbus control and data exchange, leading to communication errors or incorrect drive behavior.

Common Causes

  • Requested parameter from PLC (e.g., P5-100 for a specific function) is not available in the drive's firmware version.
  • Fieldbus Adapter A configured for a feature (e.g., specific profile) that is not activated in the drive's main control unit.
  • Incorrect data type or range specified by the PLC for a drive parameter (e.g., attempting to write a string to an integer parameter P1-01).
  • Fieldbus profile mismatch (e.g., PLC expects CiA 402, drive configured for generic I/O).
  • Drive's license key does not enable the requested fieldbus functionality.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the fieldbus communication profile (e.g., Profinet, EtherNet/IP) selected in the drive (e.g., P5-01) matches the PLC.

  2. 2

    Compare the drive's GSDML/EDS file with the PLC configuration for any parameter index discrepancies.

  3. 3

    Ensure the requested functionality or parameter from the PLC is activated in the drive's main configuration (e.g., via P2-01).

  4. 4

    Check data types and read/write access rights for all fieldbus mapped parameters.

  5. 5

    Update the drive's firmware to a version that supports the requested functionality.

  6. 6

    Set the drive to a basic fieldbus profile (e.g., generic I/O) and test communication with minimal data points.

Browse all codes in this manual (116)
Verified technical data. Last updated: April 2026

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Source: ABB ACS880
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