Omron RX2 Series User Manual page 255

Online Auto-tuning
1
Perform the offline auto-tuning.
The online auto-tuning works with the designated motor constants and the offline auto-tuning
described above is performed.
2
The Online auto-tuning selection [HA-03] is set.
Set the Online auto-tuning selection [HA-03] to 01: Enabled.
3
Check the online auto-tuning.
The online tuning operates for up to 5 s when every operation stops. Use the online tuning after
making sure that the operation and stop can be made correctly by your operation command.
Precautions for Correct Use
• In case of termination due to trip or erroneous tuning, correct data cannot be acquired. See
the following table.
• The result of the online tuning is automatically reflected in up to 5 seconds after the stop. It is
not reflected if the operation is restarted during the tuning.
• In the factory setting, the offline auto-tuning can be started by the RUN Key on the LCD oper-
ator. It can be changed to a designated operation command by changing the operation com-
mand [HA-02] of the auto-tuning.
• When the following settings are enabled, the Online auto-tuning is not performed:
• DC braking force setting
• Servo ON [SON], Forcing [FOC]
• Brake Control 2
 How to Reset Failures of Auto-tuning
The control type is not suitable for the motor.
The base frequency, motor rated voltage, or motor
rated current is not suitable for the motor specifications.
STOP key was pressed.
External factors such as braking caused a trip.
The input terminal function worked.
The motor capacity is too small compared to the one
set for the inverter.
Precautions for Correct Use
In case of failure of the auto-tuning, the motor constant data are not updated and the motor
works in the untuned state.
High-function General-purpose Inverter RX2 Series User's Manual
Expected causes
6 Basic Parameter Settings
Examples of measures
Since the tuning type changes depending on the Con-
trol mode selection, 1st-motor [AA121], IM control or
SM/PMM control, set the type in accordance with the
motor.
Since wrong basic parameters of the motor could
cause excess current or trip, check the basic parame-
ters and set them appropriately.
Pressing the STOP key on the LCD operator interrupts
the auto-tuning. Check the setting of the auto-tuning
again before starting the tuning.
Factors that cause the trip need to be removed.
The tuning could be disturbed if the input terminal func-
tion works during the auto-tuning.
If the tuning does not finish correctly, the motor con-
stants need to be set manually.
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