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F246

Max signal frequency of encoder 2 exceeded

Indramat · DIAX 04

Was bedeutet F246 ?

The DIAX04 SSE-03VRS drive's secondary encoder input (Encoder 2) is receiving a signal frequency higher than its maximum permissible limit. This typically occurs when the motor speed is too high for the resolution of the encoder or the drive's input capabilities, leading to unreliable position feedback and potential data loss. The drive faults to ensure accurate control.

Häufige Ursachen

  • Motor speed is too high for the selected encoder 2 resolution (e.g., high counts per revolution).
  • Encoder 2 has a very high number of pulses per revolution, resulting in excessive frequency at moderate motor speeds.
  • Incorrectly configured encoder 2 parameters (e.g., S-0-0041) in the DIAX04 SSE-03VRS drive.
  • Faulty encoder 2 generating spurious high-frequency signals.
  • Incorrect gear ratio setting, causing the drive to expect higher speeds than achievable with the encoder.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Check the actual motor speed and compare it to the maximum allowable speed for the combination of DIAX04 SSE-03VRS drive and encoder 2.

  2. 2

    Verify the encoder 2 resolution (pulses per revolution) and drive's maximum input frequency specification. Consider a lower resolution encoder if the speed cannot be reduced.

  3. 3

    Review and correct encoder 2 parameters (e.g., S-0-0041) in the DIAX04 SSE-03VRS drive, ensuring they accurately reflect the installed encoder.

  4. 4

    Inspect the encoder 2 cable for damage or poor shielding that could induce high-frequency noise.

  5. 5

    If possible, reduce the maximum commanded motor speed or revise the mechanical gearing to reduce the encoder's rotational speed relative to the motor.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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