6  Vector Control and Applied Functions 
Multi-function Compact Inverter 3G3MX2-EV2 User’s Manual (I666-E1) 
 
 
 
 
 
 
 
6-1-2  Offline Auto-tuning for Motor Parameters   
 
• 
Use this function to measure and automatically set the motor parameters required for sensorless 
vector control. 
• 
To use the sensorless vector control method, perform auto-tuning to measure the motor parameter 
values. 
• 
The measured motor parameter values will be set as 50-Hz converted data for one phase in Y-con- 
nection. 
 
00:  Disabled 
01:  Enabled (No motor rotation) 
02:  Enabled (Motor rotation) 
 
1st/2nd Motor Parame- 
ter Selection 
00:  Standard motor parameter 
02:  Auto-tuning parameter (Applies 
H030/H230 to H034/H234 data to motor 
parameters.) 
0.1/0.2/0.4/0.55/0.75/1.1/1.5/2.2/3.0/3.7/4.0/5.5/ 
7.5/11.0/15.0/18.5 
Maximum 
applicable 
motor 
capacity 
1st/2nd Motor Pole 
Number 
2/4/6/8 
10 to 488: Do not set. 
1st/2nd Motor Parame- 
ter R1 (Auto-tuning 
Data) 
 
 
 
 
 
Depen- 
dent on 
motor 
capacity 
1st/2nd Motor Parame- 
ter R2 (Auto-tuning 
Data) 
1st/2nd Motor Parame- 
ter L (Auto-tuning Data) 
1st/2nd Motor Parame- 
ter lo (Auto-tuning 
Data) 
1st/2nd Motor Parame- 
ter J (Auto-tuning Data) 
30.0 to 1st/2nd Maximum Frequency 
(A004/A204) 
DC Injection Braking 
Selection 
00:  Disabled 
01:  Enabled 
02:  Enabled (Operates only at set frequency) 
1st/2nd Motor Rated 
Voltage Selection 
200-V class: 200/215/220/230/240 
400-V class: 380/400/415/440/460/480