Overheat in Motor

What does 21 mean?

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.

• 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.

Click steps to track your progress.

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.