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Encoder Quadrature Error

Allen-Bradley · PowerFlex 700

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Both encoder channels (A and B) changed state within a single clock cycle. This suggests an issue with the encoder signal quality, possibly due to electrical noise or a damaged encoder, causing incorrect speed or position feedback.

Vanlige årsaker

  • Encoder signals A and B are reversed or swapped.
  • Encoder pulses are inconsistent or noisy.
  • Incorrect encoder resolution set in drive parameters (e.g., P4-01).
  • Faulty encoder or internal logic issue.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Check for externally induced noise on encoder cabling (e.g., proximity to power cables, proper shielding and grounding).

  2. 2

    Replace the encoder unit.

Se alle koder i denne manualen (49)
Verifisert teknisk data. Sist oppdatert: March 2026

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