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OLF

MOTOR OVERLOAD

Schindler · Altivar 312 Drive

¿Qué significa OLF ?

This fault is triggered by excessive motor current, indicating the motor is drawing more current than its thermal protection limits. An incorrect [Cold stator resist.] (rSC) parameter value can also lead to this fault. Continued operation under overload conditions can damage the motor.

Causas comunes

  • Excessive motor current due to a high mechanical load on the motor.
  • Incorrect value set for the [Cold stator resist.] (rSC) parameter.
  • Incorrect setting for the motor thermal protection parameter [Mot. therm. current] (ItH).

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the mechanical load on the motor and reduce it if it is excessive.

  2. 2

    Verify the setting of parameter [Mot. therm. current] (ItH) on page 33 and ensure it matches the motor's rated thermal current.

  3. 3

    Remeasure the [Cold stator resist.] (rSC) value and update the parameter on page 42.

  4. 4

    Allow the drive to cool down before attempting to restart, if the fault was due to overheating.

Ver todos los códigos en este manual (32)
Datos técnicos verificados. Última actualización: March 2026

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