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Autotuning Mode
Autotuning automatically tunes and sets the required motor parameters when operating in the vector control
modes. Always perform autotuning before starting operation.
When V/f control has been selected, stationary autotuning for only line-to-line resistance can be selected.
When the motor cannot be disconnected from the load, perform stationary autotuning. Contact your Yaskawa
representatives to set motor parameters by calculation.
The Drive's autotuning function automatically determines the motor parameters, while a servo system's auto-
tuning function determines the size of a load, the drives autotuning functions are fundamentally different. The
default setting of the Drive is for open-loop vector control 1.
Example of Operation
Set the motor output power (in kW), rated voltage, rated current, rated frequency, rated speed, and number of
poles specified on the nameplate on the motor and then press the RUN Key. The motor is automatically run
and the motor parameters measured based on these settings and autotuning will be set.
Always set the above items. Autotuning cannot be started otherwise, e.g., it cannot be started from the motor
rated voltage display.
Parameters can be changed from the setting displays. Use the Increment, Decrement, and Shift/RESET Keys
to change the frequency. The user parameter will be written and the monitor display will be returned to when
the DATA/ENTER Key is pressed after changing the setting.
The following example shows autotuning for open-loop vector control while operating the motor without
switching to motor 2.
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