LS SV-iG5H Series, Manual, Page: 134 / 226

Advanced functions
120
8.16 Auto-tuning
Group Code Parameter Name Setting Range Default Unit
Function
group 2
H41 [Auto tuning] 1 0 - 1 0 -
H42 [Stator resistance (Rs)] - 0 - 28 -

H44
[Leakage inductance (L

)]
- 0 - 300.00 - mH
Automatic measuring of the motor parameters is provided.

The measured motor parameters in H41 can be used in Auto Torque Boost.

Auto tuning should be executed after stopping the motor. Motor shaft must not run by the load
during H41
– [Auto tuning].
►
H41: When H41 is set to 1 and press the Enter (

) key, Auto tuning is activated and
“TUn” will appear on the LED keypad. When finished, “H41” will be displayed.
►
H42, H44: The values of motor stator resistance and leakage inductance detected in
H41 are displayed, respectively. When Auto tuning is skipped or H93
– [Parameter
initialize] is done, the default value corresponding to motor type (H30) will be displayed.
►
Press the STOP/RST key on the keypad or turn on the EST terminal to stop the Auto
Tuning.
►
If Auto tuning of H42 and H44 is interrupted, the default value will be set. If H42 and
H44 are finished and auto-tuning of leakage inductance is interrupted, the measured
value of H42 and H44 are used and the default of leakage inductance is set.
►
See page 112 for motor parameter default values.
Do not enter any incorrect value as stator resistance and leakage inductance. Otherwise, the
function of Auto torque boost could be deteriorated.