If T1-12 = 1 [Test Mode Selection = Yes] when selecting Stationary Auto-Tuning, the drive will automatically set motor parameters E2-02 [Motor Rated Slip] and E2-03 [Motor No-Load Current] after Auto-Tuning is complete when you use the motor for the first time in Drive Mode.

After Stationary Auto-Tuning is complete, use this procedures to do the operation in test mode:

  1. Check the E2-02 and E2-03 values on the “Modified Parameters/Fault Log” screen or the “Parameters” screen.

  2. Operate the motor in Drive Mode with these conditions:

    • Make sure that you connect all wiring between the drive and motor

    • Make sure that a mechanical brake on the motor shaft is not locked

    • The maximum motor load must be 30% of the rated load.

    • Keep a constant speed of 30% of E1-06 [Base Frequency] (default value = maximum frequency) or more for 1 second or longer.

  3. After the motor stops, check the E2-02 and E2-03 values on the “Modified Parameters/Fault Log” screen or the “Parameters” screen again.

  4. Make sure that the input data is correct.

    When the settings in E2-02 and E2-03 are different than in step 1, the drive set the values automatically.

Note:

  • If you cannot operate the motor with the conditions in step 2 for the first test run and if the values set in E2-02 and E2-03 are much different than data in the official test report for the motor and the data listed in Defaults by Drive Model and Duty Rating ND/HD, these problems can occur:

    • Motor vibrations or hunting

    • Not sufficient torque

    • Overcurrent

    In elevator applications, there is a risk of the cage falling and causing personal injury.

    Do one of these precautions to decrease the risk:

    • After doing Stationary Auto-Tuning, operate the drive as specified by the conditions and procedure above.

    • Set T1-12 = 0 [Test Mode Selection = No].

    • Do Rotational Auto-Tuning.

  • If you initialize the drive after completing Step 1, do the procedure beginning from Step 1 again.

  • For general-purpose motors, the target value for E2-02 is 1 Hz to 3 Hz, and the target rated current for E2-03 is 30% to 65%. Larger capacity motors have a lower rated slip, and a smaller ratio for the no-load current rated current. Refer to Defaults by Drive Model and Duty Rating ND/HD.