Function Applications
-454-
4.2 Motor Configuration
4.2.1 Auto-tuning of Asynchronous Motor
Motor auto-tuning is the process by which the AC drive obtains the parameters of the controlled
motor.
The following auto-tuning methods are available for asynchronous motors: static auto-tuning on some
parameters of asynchronous motors, dynamic auto-tuning on all parameters of asynchronous motors,
and static auto-tuning on all parameters of asynchronous motors.
Para. No. Name
Default
Value Range Description
F1-37
Auto-tuning
0
0: No operation Auto-tuning is not performed.
1: Static auto-tuning on
some parameters of
asynchronous motor
Auto-tuning is performed on only
some motor parameters, including
the stator resistance, rotor
resistance, and leakage inductance.
2: Dynamic auto-tuning on
all parameters of
asynchronous motor
Auto-tuning is performed on all
motor parameters when the motor is
running.
3: Static auto-tuning on all
parameters of
asynchronous motor
Auto-tuning is performed on all
motor parameters when the motor
stops.
The auto-tuning effect is described as follows.
Table 4–7 Motor auto-tuning effect
Auto-tuning Method Applicable Scenario Auto-tuning Effect
Static auto-tuning on some
parameters of asynchronous motor
Scenarios where the motor cannot be
disconnected from the load and dynamic auto-
tuning is not allowed
Ordinary
Dynamic auto-tuning on all
parameters of asynchronous motor
Scenarios where the motor can be disconnected
from the application system easily
Optimal
Static auto-tuning on all parameters
of asynchronous motor
Scenarios where the motor cannot be
disconnected from the load and dynamic auto-
tuning on all parameters is not allowed
Good
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
The following uses the parameters of motor 1 (set F0-24 to 0 to select motor parameter group 1) as an
example to describe the motor auto-tuning methods. If you need to perform auto-tuning on
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