Delta VFD1A5MS43ANSAA User Manual

Chapter 12 Description of Parameter SettingsMS300
467
If an auto-tuning error (AUE) occurs, refer to Chapter 14 “Fault Codes and Descriptions” for
further treatment.
AUE Error (code)
Description
AUE (40)
Auto-tuning error
AUE1 (142)
Auto-tuning error 1 (No feedback current error)
AUE2 (143)
Auto-tuning error 2 (Motor phase loss error)
AUE3 (144)
Auto-tuning error 3 (No-load current I
0
measuring error)
AUE4 (148)
Auto-tuning error 4 (Leakage inductance Lsigma measuring error)
5. Execute inertia estimation for IM (optional), press RUN key to start the process.
 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
HP
Inertia
1
0.00023
10
0.00358
2
0.00043
15
0.00743
3
0.00083
20
0.00953
5
0.00148
25
0.01428
7.5
0.0026
30
0.01765
6. Execute IMFOC Sensorless mode, set up the following parameters:
 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.
7. Select auto-tuning gain (Pr.11-00 bit0 = 1), adjust ASR parameters according to the speed
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.

Delta VFD1A5MS43ANSAA Specifications

General

Brand	Delta
Model	VFD1A5MS43ANSAA
Category	DC Drives
Language	English