362
14. (C) Motor Constant Parameters
14.4 Online auto tuning
14.4
Online auto tuning
If online auto tuning is selected under Advanced magnetic flux vector control, Real sensorless vector control, or Vector control,
favorable torque accuracy is retained by adjusting temperature even when the resistance value varies due to increase in the
motor temperature.
Online auto tuning at startup (Pr.95/Pr.574 = "1")
• By promptly tuning the motor status at startup, accurate operation without being affected by motor temperature is achieved.
Also high torque can be provided at very low speed and stable operation is possible.
• Make sure to perform offline auto tuning before performing online auto tuning.
Operating procedure
1.
Perform offline auto tuning. (Refer to
2.
Check that
Pr.96 Auto tuning setting/status
= "3" (offline auto tuning completion) and values other than "9999"
are set in
Pr.717 (Pr.741) and Pr.720 (Pr.737)
.
3.
Set
Pr.95 Online auto tuning selection
= "1" (online auto tuning at start).
Online auto tuning is enabled at the next start.
4.
Check that the following parameters are set before starting operation.
*1
If a motor with substantially low rated current compared with the inverter rated current is used, speed and torque accuracies may deteriorate due
to torque ripples, etc. Set the rated motor current to about 40% or higher of the inverter rated current.
5.
In the PU operation mode, press the RUN key on the operation panel.
In the External operation, turn ON the start command (STF signal or STR signal).
Magnetic flux
Magnetic flux
Magnetic flux Sensorless
Sensorless
Sensorless Vector
Vector
Vector
Pr.
Name
Initial value
Setting range
Description
95
C111
Online auto tuning selection
0
0
Online auto tuning is not performed at startup.
1
Online auto tuning is performed at startup.
574
C211
Second motor online auto tuning
0
0, 1
Select online auto tuning for the second motor.
(The settings are the same as those in
Pr.95
.)
717
C182
Starting resistance tuning
compensation coefficient 1
9999
9999
100%
0% to 200%
R1 compensation coefficient for start-time
tuning
720
C188
Starting resistance tuning
compensation coefficient
9999
9999
100%
0% to 200%
R2 compensation coefficient for start-time
tuning
741
C282
Second motor starting resistance
tuning compensation coefficient 1
9999
9999
100%
0% to 200%
R1 compensation coefficient for start-time
tuning (for the second motor)
737
C288
Starting resistance tuning
compensation coefficient 2
9999
9999
100%
0% to 200%
R2 compensation coefficient for start-time
tuning (for the second motor)
Pr.
Description
9
Rated motor current or electronic thermal O/L relay
71
Applied motor
80
Motor capacity (with the rated motor current equal to or less than the inverter rated current)
81
Number of motor poles
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...