Omron SYSDRIVE 3G3RV, User Manual

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Autotuning Mode
Autotuning
automatically tunes and sets the required motor constants when operating in the open-loop V/f,
V/f
with PG, or open-loop vector control modes. Always perform autotuning before starting operation when
using
open-loop vector control mode.
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 dealer to
set
motor constants by calculation.
The
Inverter's autotuning function automatically determines the motor constants, while a servo system's auto-
tuning
function determines the size of a load, so these autotuning functions are fundamentally different.
n
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 constants 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 Digit Selection/
RESET
Keys to change the frequency. The parameter will be written and the monitor display will be returned
to
when the 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.