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Display Setting Description Setting Setting
F_74
AUTOMATIC TUNING 0
This function is used to automatically tune the primary
resistance (R1) and leakage reactance (X1) of the motor
in order to achieve optimum performance of F_69
(Torque Vector Control).
0: Inactive
1: Automatic tuning
[Operation procedure]
➀ Connect the motor and the Inverter correctly.
➁ Set the data for this function to "1" while the Inverter is
stopped.
➂ Press the key.
➯➯ Tuning operation (approx. 10 seconds) ➯➯ F_75
→ The display changes when tuning is completed.
➃ The results of tuning can be confirmed using F_75 (R1)
and F_76 (X1).
F_75 0.00 to 50
MOTOR 1 (%R1 Setting) Std. 4-Pole
This function displays the primary resistance R1 of the motor
motor in terms of percentage, and is set manually.
The data can be overwritten and changed automatically by
automatic tuning using function F_74, or by setting the
motor capacity, rated current and no-load current using
functions F_70 to F_72.
Calculation Formula for %R1
R1 + cable R
%R1 = x 100 [%]
V / ( 3 • I)
R1: Motor resistance
Cable R: Resistance of cable between Drive and motor
V: Rated voltage of motor
I: Rated current of motor
: Value calculated for Y connection
FUNC
DATA
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