MOTOR OVERLOAD

What does OLF mean?

This fault is triggered by excessive motor current, indicating the motor is drawing more current than its thermal protection limits. An incorrect [Cold stator resist.] (rSC) parameter value can also lead to this fault. Continued operation under overload conditions can damage the motor.

• Excessive motor current due to a high mechanical load on the motor.
• Incorrect value set for the [Cold stator resist.] (rSC) parameter.
• Incorrect setting for the motor thermal protection parameter [Mot. therm. current] (ItH).

Click steps to track your progress.

1. 1

   Check the mechanical load on the motor and reduce it if it is excessive.

2. 2

   Verify the setting of parameter [Mot. therm. current] (ItH) on page 33 and ensure it matches the motor's rated thermal current.

3. 3

   Remeasure the [Cold stator resist.] (rSC) value and update the parameter on page 42.

4. 4

   Allow the drive to cool down before attempting to restart, if the fault was due to overheating.