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501

Negative Overtravel Limit Exceeded

Fanuc · Alpha i series AC Servo Motor

Hva betyr 501 ?

The machine has exceeded its negative stroke limit. This indicates a physical limit switch activation or an incorrect move command, which can cause mechanical interference or damage.

Vanlige årsaker

  • Negative stroke limit switch (*-OT) is incorrectly connected or activated
  • Incorrect move command specified, leading to overtravel

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Check whether *-OT is connected correctly

  2. 2

    Check whether a correct move command is specified

  3. 3

    Move the tool in the opposite direction in jog mode, then perform a reset

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Verifisert teknisk data. Sist oppdatert: March 2026

Relaterte feilkoder

Kilde: Fanuc Alpha i series AC Servo Motor