Warning /Alarm 10 in VLT Micro Drive FC301/ FC302 : Motor ETR overtemperature - according to the electronic thermal protection (ETR), the motor is too hot. This warning/alarm is controlled by parameter 1-90 Motor Thermal Protection.

1. If the parameter is set to warning options, the drive issues a warning or an alarm when the counter is >90%.
2. If the parameter is set to trip options, the drive trips when the counter reaches 100%.
3. The fault occurs when the motor runs with more than 100% overload for too long.

Troubleshooting

1. Check for motor overheating.
2. Check whether the motor is mechanically overloaded.
3. Check that the motor current set in parameter 1-24 Motor Current is correct.
4. Ensure that the motor data in parameters 1-20 to 1-25 is set correctly.
5. If an external fan is in use, check that it is selected in parameter 1-91 Motor External Fan.
6. Run AMA in parameter 1-29 Automatic Motor Adaptation (AMA). This tunes the drive to the motor more accurately and reduces thermal loading.