VLT FC 103 Refrigeration Drive
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Feb 23, 2024 11:33 am
Cause : Motor overload temperature comes when the motor is too hot. Select whether the frequency converter gives a warning or an alarm when the counter reaches 100% in 1-90 Motor Thermal Protection. The fault occurs when the motor is overloaded by more than 100% for too long.
- Check for motor overheating.
- Check if the motor is mechanically overloaded.
- Check that the motor current set in 1-24 Motor Current is correct Ensure that motor data in parameters 1-20 to 1-25 are set correctly.
- If an external fan is in use, ensure that is is selected in 1-91 Motor External Fan.
- Running AMA in 1-29 Automatic Motor Adaptation (AMA) tunes the frequency converter to the motor more accurately and reduces thermal loading