Common Causes

• Overload: The drive is being asked to deliver more current or torque than it is rated for.
• Excessive Ambient Temperature: The drive is operating in an environment that is too hot.
• Poor Cooling: Inadequate cooling of the drive, such as clogged fans or insufficient airflow, can contribute to overheating.
• Drive Internal Fault: A fault within the drive's internal circuitry can cause excessive IGBT current and overheating.

Troubleshooting Steps

1. Verify Drive Load:

   • Check the load on the drive: Ensure that it is within the drive's rated capacity.
   • Reduce the load if necessary: If the load is excessive, reduce it or adjust the drive settings to prevent overloading.

2. Improve Cooling:

   • Inspect cooling fans: Ensure that the cooling fans are working properly and are not obstructed.
   • Clean the drive: Remove any dust or debris that might be blocking airflow.
   • Improve ventilation: If necessary, provide additional ventilation to the drive's location.

3. Check Ambient Temperature:

   • Measure ambient temperature: Use a thermometer to measure the temperature around the drive.
   • Reduce ambient temperature if necessary: If the ambient temperature is too high, take steps to cool the area or relocate the drive.

4. Review Drive Configuration:

   • Check current limit: Ensure that the current limit is set to a value that prevents the drive from overloading.
   • Verify other drive settings: Check for any other configuration errors that might be contributing to overheating.