Function Applications
-457-
Table 4–11 Motor auto-tuning effect
Auto-tuning Method Applicable Scenario Auto-tuning Effect
Static auto-tuning on some
parameters of synchronous motor
Scenarios where the motor cannot be
disconnected from the load and dynamic auto-
tuning is not allowed
After auto-tuning is completed, you need to
manually set the back EMF (SVC, VVC) and encoder
phase sequence.
Good
Dynamic auto-tuning on all
parameters of synchronous motor
with no load
Scenarios where the motor can be disconnected
from the application system easily
Optimal
Static auto-tuning on all parameters
of synchronous motor
Scenarios where the motor cannot be
disconnected from the load and is not allowed to
rotate at all
After auto-tuning is completed, you need to
manually set the back EMF (SVC, VVC).
Ordinary
In addition to the preceding motor auto-tuning methods, you can also input motor parameters
manually.
To select the operating panel/LCD operating panel of the power supply unit as the auto-tuning
operation command source, set F0-02 to 0; to select the DI terminals as the command source, set F0-02
to 1; to select communication as the command source, set F0-02 to 2.
To perform auto-tuning through communication, write the auto-tuning parameter to F1-37, and then
write the operation command.
Application
● Static auto-tuning on some parameters of synchronous motors
Table 4–12 Static auto-tuning on some parameters of synchronous motors
Step Description
Step 1
Power on the AC drive, and then set F0-02 to 0 to select the operating panel/LCD
operating panel/software tool as the command source.
Step 2
Input motor nameplate parameters (F1-00 to F1-05) correctly.
Step 3
Set F1-37 to 11 to select static auto-tuning on some parameters of the synchronous
motor, and press Enter on the operating panel. The operating panel displays:
Step 4
Press the RUN key on the operating panel or SOP20. The motor gets energized. The
RUN indicator becomes ON, and the auto-tuning indicator blinks.
After the preceding display disappears and the operating panel returns to normal
parameter display state, auto-tuning is completed.
Parameters F1-06, F1-17, and F1-18 are obtained.
F1-19 (SVC, VVC) needs to be set manually.
● Dynamic auto-tuning on all parameters of synchronous motors with no load
If the motor has constant output or is used for high-accuracy applications, perform dynamic auto-
tuning on all parameters after disconnecting the motor from the load for optimal auto-tuning
effect.
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