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7302

Encoder Phase A/B Swapped

ABB · ACS800 Standard Firmware

¿Qué significa 7302 ?

The pulse encoder phasing is incorrect, specifically Phase A is connected to the terminal for Phase B and vice versa. This will result in incorrect speed or position feedback, potentially causing motor rotation direction issues or control instability.

Causas comunes

  • Incorrect wiring of encoder phase signals A and B.
  • Encoder signals A and B are reversed in the control unit configuration (P3-01, P3-02).
  • Faulty encoder sensor generating swapped phase signals.
  • Improper installation or setup of the encoder feedback.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Interchange the physical connections of pulse encoder phases A and B at the drive's encoder terminal block.

Ver todos los códigos en este manual (33)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

ABB 7302 — Pasos de diagnóstico y reinicio | ErrorLib