F4017

S-III: incorrect sequence during phase switch

Bosch Rexroth · IndraDrive MPx02

What does F4017 mean?

This fault indicates an incorrect sequence of communication phases during a switch, specifically related to phase S-III operation on the IndraDrive MPx02. This can disrupt the synchronous operation of the drive.

Common Causes

  • Master communication device sending an incorrect phase sequence or timing.
  • Incorrect configuration of communication parameters in the IndraDrive MPx02 (e.g., S-0-0010, S-0-0011).
  • Disturbances or interference on the communication bus during phase switching.
  • Software or firmware issues in either the master controller or the IndraDrive MPx02.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the communication master's configuration for phase switching and sequence, ensuring it aligns with the IndraDrive MPx02 requirements.

  2. 2

    Check communication parameters in the IndraDrive MPx02, such as S-0-0010 (Master communication cycle time) and S-0-0011 (Drive communication cycle time), for correct settings.

  3. 3

    Inspect the communication bus cabling (e.g., SERCOS, EtherCAT) for proper termination, shielding, and absence of damage.

  4. 4

    Monitor the communication signals for integrity and noise using appropriate diagnostic tools, if available.

  5. 5

    Update the firmware of the IndraDrive MPx02 to the latest version, if applicable, to address potential known issues.

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Verified technical data. Last updated: March 2026

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Source: Bosch Rexroth IndraDrive MPx02