Motor overload temperature

What does ALARM 10 mean?

The motor's electronic thermal protection (ETR) indicates it is too hot. This fault occurs when the motor runs with more than 100% overload for an extended period, risking damage to motor windings and insulation. The frequency converter issues a warning at >90% and trips at 100% (depending on parameter 1-90 Motor Thermal Protection settings).

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify that the motor current set in parameter 1-24 Motor Current is correct for the connected motor.

2. 4

   Ensure that motor data in parameters 1-20 to 1-25 are correctly set.

3. 5

   If an external fan is used, check that parameter 1-91 Motor External Fan is correctly selected.