6.3.5 Auto-Tuning
The motor parameters for the Vector Control are autotuned by Starvert-iV5. The stator resistance, Stator Inductance,
Leakage Inductance and Rotor time constant are found and saved. User can select the type of Auto-tuning in Rotational
or Standstill mode.
1) Motor and Encoder parameters setting for Auto-tuning
The following paramters should be set according to motor nameplate to find motor parameters correctly.
Code
LCD display
Description
Setting range
Unit
Factory
setting
PAR_07
Motor Select
Motor capacity selection
2.2 ~ 220.0
User Define
PAR_08
UserMotorSel
Motor cap. selection of USER
1.5 ~ 220.0
5.5
PAR_10
Enc Pulse
Pulse no. of encoder
360 ~ 4096
1024
PAR_17
Base Speed
Motor base speed
100.0 ~ 3600.0
rpm
1800.0
PAR_18
Rated Volt
Motor rated voltage
120 ~ 560
V
220 or 440
PAR_19
Pole Number
Motor number of poles
2 ~ 12
4
PAR_20
Efficiency
Motor efficiency
0.0 ~ 100.0
%
PAR_21
ASR PI Ratio
ASR PI gain ratio
3~ 250
rpm
20
PAR_22
Rated-Curr
Motor rated current
1.0 ~ 450.0
A
In order to set motor capacities in PAR_07 other than its initial default value, select “User Define”. Then PAR_08
“User Motor Selection” will be displayed. Under the user motor selection section, put motor capacities.
PAR_17 “Motor base speed” is the frequency inverter outputs its rated voltage. It is to be set within the range of
Motor Max speed. Set motor speed and rated voltage according to motor rating. When standard motor is
used, 60Hz (1800rpm) is the normal rating.
PAR_18 “Motor rated voltage”
For 200V class inverters, factory default is 220(V) and for 400V class is 440(V). When input voltage is 380(V), change
it to 380V. This value is input to Voltage controller and used to prevent voltage saturation. It should be set correctly
because it affects Flux current value during Auto-tuning.
PAR_20 “Motor efficiency” should be entered for (PAR_23[AutoTuneType] : StandStill), not needed for (PAR_23
[AutoTuneType] : Rotational).
PAR_21 “ASI PI Gain Ratio”
With a synchronous motor, “ASI PI Gain Ratio” is used as a standard value for the speed controller’s proportional and
integral gain.
Refer to 4.5 Auto Tuning under Chapter 4. Loader manual and basic functions for auto tuning functions.