Delta MS300 Series User Manual page 476

If an auto-tuning error (AUE) occurs, refer to Chapter 14 "Fault Codes and Descriptions" for
further treatment.
AUE Error (code)
AUE (40)
AUE1 (142)
AUE2 (143)
AUE3 (144)
AUE4 (148)
Execute inertia estimation for IM (optional), press RUN key to start the process.
5.
Set Pr.00-10 = 2, torque mode

 Set Pr.00-13 = 2, IM TQC sensorless
 Set Pr.05-00 = 12, FOC sensorless inertia estimation
Check if the estimated value for Pr.11-01 is reasonable (refer to the explanation of Pr.11-00)
when the inertia estimation process is finished, the base value table of inertia is as below
(unit: kg-cm 2 ).
HP Inertia
1 0.00023
2 0.00043
3 0.00083
5 0.00148
7.5 0.0026
Execute IMFOC Sensorless mode, set up the following parameters:
6.
 Set Pr.00-10 = 0, speed mode
 Set Pr.00-11 = 5, IMFOC Sensorless
 Set Pr.11-00 bit0 = 1, use ASR gain auto-tuning
Press RUN key and start the no load test. Accelerate the motor to the rated speed, and
then decelerate to stop, check if the motor runs smoothly.
 If the motor runs smoothly, then the setting for IMFOC Sensorless is completed.
If the motor does not run smoothly or fails to start at low frequency, then refer to the

following steps for adjustment.
Select auto-tuning gain (Pr.11-00 bit0 = 1), adjust ASR parameters according to the speed
7.
response.
 Set Pr.11-00 bit0 = 1, use auto-tuning for ASR
 Set Pr.11-03 ASR1 low-speed bandwidth (When the acceleration of low-speed cannot
follow the acceleration command, increase the low-speed bandwidth)
 Set Pr.11-04 ASR2 high-speed bandwidth (When the acceleration in high speed
causes vibration or cannot follow the acceleration command, increase high-speed
bandwidth)
 Set Pr.11-05 Zero-speed bandwidth (If the response of start-up is slow or incapable,
increase zero-speed bandwidth)
 The bigger the setting value for ASR bandwidth, the faster the response.
 The low-speed bandwidth cannot be set too high, or the observer will diverge.
Chapter 12 Description of Parameter SettingsMS300
Auto-tuning error
Auto-tuning error 1 (No feedback current error)
Auto-tuning error 2 (Motor phase loss error)
Auto-tuning error 3 (No-load current I
Auto-tuning error 4 (Leakage inductance Lsigma measuring error)
HP Inertia
10 0.00358
15 0.00743
20 0.00953
25 0.01428
30 0.01765
467
Description
measuring error)
0