Cause : Motor Overloaded comes when the motor overload protection function has operated based on the internal electronic thermal value.

1. The load is too heavy. The acceleration time, deceleration time, and cycle time are too short.
2. Check the size of the load and the length of the acceleration, deceleration, and cycle times.
3. The constant setting for speed search is incorrect. (Motor overload occurred due to motor hunting and vibration.)
   • Use the speed search function.
   • Adjust the settings of the Speed search operating current (b3-02) and Speed search deceleration time (b3-03).
   • Use the estimated speed search function. (Autotuning for motor line-to-line resistance is required.)
4. Motor overload occurred when running at low speed. (If a general-purpose motor is used, motor overload can occur when running at low speed even if running within the rated current.).
5. Motor protection selection (L1-01) is set to general-purpose motor protec- tion (1) when an Inverter duty motor is used.
6. The directions of the motor and PG are different. (Only in flux vector control)
   • Correct the PG wiring.
   • Correct the motor wiring.
   • Change the setting of PG rotation (F1-05).
7. The V/f characteristics voltage is too high. Check the V/f characteristics.
8. The Motor Rated Current (E2-01) is incorrect. Check the Motor Rated Current (E2-01).