25232

Warning invert rotation

Lenze · i550 Protec Drive

What does 25232 mean?

This warning occurs when a negative setpoint is selected with an active limitation of rotation (parameter 0x283A (P304.00)), or if the 'Reverse rotational direction' function (parameter 0x2631:013 (P400.13)) is requested while rotation limitation (parameter 0x283A (P304.00)) is active. The motor will be brought to a standstill because reversal of the rotating direction is not permissible under these conditions.

Common Causes

  • A negative speed setpoint is commanded while the drive's rotational direction is explicitly limited by Parameter 0x283A (P304.00).
  • The 'Reverse rotational direction' function (Parameter 0x2631:013) is active, conflicting with a commanded forward setpoint or a rotation limit.
  • Inconsistent drive configuration where a unidirectional operation limit is enabled but a bidirectional speed command source is active.
  • External control system (e.g., PLC) sending a negative speed command inadvertently, conflicting with drive settings.
  • Incorrect value set in Parameter 0x283A (P304.00) restricting desired bidirectional motor operation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the current speed setpoint (e.g., via HMI, fieldbus monitor) and its polarity (e.g., -100 RPM).

  2. 2

    Examine Parameter 0x283A (P304.00) to confirm if a rotation limitation (e.g., 'Forward Only') is enabled.

  3. 3

    Check the state of the 'Reverse rotational direction' function (Parameter 0x2631:013) to see if it is active.

  4. 4

    Adjust the speed setpoint to be positive if unidirectional forward rotation is intended, or disable the rotation limitation in Parameter 0x283A (P304.00).

  5. 5

    Review the PLC or master control program to ensure speed commands and direction signals are consistent with the drive's desired operation mode.

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Verified technical data. Last updated: March 2026

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