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21

Overheat in Motor

Kone · Frequency Inverter

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This fault is triggered when an overheat input signal is detected on terminal X25, indicating that the motor has exceeded its safe operating temperature. This is typically activated by a thermal sensor integrated within the motor's windings or casing.

Vanlige årsaker

  • Motor operating under excessive load, leading to overheating.
  • Insufficient motor cooling due to fan malfunction, blocked ventilation, or high ambient temperature.
  • Failure of the motor's internal thermal protection sensor or its connection to input X25.
  • Incorrect parameter settings for motor current or acceleration/deceleration ramps, causing excessive heat generation.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Inspect the motor for signs of overheating, such as discoloration or unusual odors.

  2. 2

    Verify the motor's cooling fan operation and ensure ventilation paths are clear.

  3. 3

    Check the wiring and continuity of the motor's overheat sensor circuit connected to input X25.

  4. 4

    Measure the motor's actual operating temperature to confirm if it genuinely overheats.

  5. 5

    Review drive parameters related to motor current, acceleration, and load to ensure they are configured correctly for the application.

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Verifisert teknisk data. Sist oppdatert: March 2026

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