Santerno Sinus M, User Manual

Page: 125 / 219

10-25
10.8 Auto-tuning
Group Display Parameter Name Setting Range Default Unit
Function
group 2
H41 [Auto tuning] 1
0 ~ 1
0
-
H42
[Stator resistance (Rs)]
- 0 ~ 14 - Ω
H44
[Leakage inductance
(L σ )]
- 0 ~ 300.00 - mH

Setting H41 as 1, the inverter measures the motor parameter.

The measured motor parameters are used in Auto Torque Boost and Sensorless Vector
Control.
CAUTION:
Auto tuning should be executed after stopping the motor. Motor shaft must not run during Auto
tuning.

H41: When H41 is set to 1 and press the Enter (

) key, Auto tuning is activated and “TUn” will appear
on the display. When finished, “H41” will be displayed.

H42, H44: The values of motor stator resistance and leakage inductance detected 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 set 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 is correctly calculated
and auto-tuning of leakage inductance (H44) is interrupted, the measured value of H42 is used and the
default of leakage inductance (H44) is set.

See following pages for the motor parameter default values.
CAUTION:
Do not enter any incorrect value as stator resistance and leakage inductance. Otherwise,
the function of Sensorless vector control and Auto torque boost could be deteriorated.