Cause : Inverter overtemperature comes when the temperature of the drive has exceeded the specified limit. Overheating can occur due to various reasons, including ambient temperature, inadequate ventilation, heavy load conditions, or internal faults.
Here's how to address an inverter overtemperature alarm:
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Check Ambient Temperature: Ensure that the ambient temperature around the inverter is within the specified operating range. High ambient temperatures can contribute to overheating issues.
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Inspect Ventilation: Verify that the inverter is adequately ventilated to dissipate heat effectively. Ensure that vents are not obstructed and that there is sufficient airflow around the drive. Consider installing additional cooling fans or ventilation systems if necessary.
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Reduce Load: If the inverter is operating at maximum capacity for extended periods, consider reducing the load to decrease heat generation. Overloading the inverter can lead to overheating and premature failure.
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Inspect Cooling Fans: Check the condition and operation of the cooling fans within the inverter. Dirty or malfunctioning fans can reduce airflow and contribute to overheating. Clean or replace fans as needed.
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Verify Motor Parameters: Ensure that the parameters of the motor connected to the inverter are correctly configured. Incorrect motor parameters can lead to inefficient operation and increased heat generation.
- Also check the following:
• Load or load cycle too high?
• Motor power (P0307) must match inverter power (r0206)
• Pulse frequency must be set to default value
• Surrounding temperature too high?
• Fan must turn when inverter is running
