Yaskawa VS-626 MC5 User Manual
Page 123
Basic Operation
6.2.2 Autotuning for machine tool spindle motors
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Required Constant Settings
1.
Enter autotuning mode and make the following constant settings:
x
Rated Voltage
Set the rated voltage (VAC) at the base speed(r/min).
x
Rated Current
Set the rated current (A) at the base speed(r/min).
x
Rated Frequency
Set the rated frequency (Hz) at the base speed.
x
Rated Speed(r/min)
Set the rated speed (r/min) at the base speed.
x
Number of Poles
Set the number of poles.
x
Motor Selection
Select motor 1 or 2.
2.
The following message will appear when the constants have been set:
Tuning Ready?
Press RUN Key
The “Press RUN Key” message will
blink.
3.
At this point, it is still possible to change the constant settings by pressing the
Increment ( ) and Decrement ( ) Keys to display the desired constant.
4.
Press the STOP Key to cancel autotuning, and then press the MENU Key and DATA/ENTER Key.
The operation mode display will appear.
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Performing Autotuning
D
Autotuning will start if the Run Key is pressed when the “Tuning Ready?” message is being displayed.
D
The motor will operate during autotuning, so be sure that it is safe for the motor to operate before press-
ing the RUN Key.
D
The following message will be displayed when the Run Key is pressed:
Tune Proceeding
Hz
A
The “Tune Proceeding” message will blink.
D
Autotuning takes up to 1.5 minutes. The message “Tune Successful” will be displayed when autotun-
ing is completed.
D
When autotuning has been completed successfully, record the motor constants. Repeat autotuning for
three times and set to the resulting average (value).
D
If a fault occurred during autotuing, refer to 6.2.3 Autotuning Faults for details on correcting the cause
of the fault and perform autotuning again.
D
After autotuning of Motor 1 is completed, perform autotuning of Motor 2 using the same procedures.
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Adjustment after autotuning
Adjust the following constants when autotuning has completed.
x
Max. frequency (E1-04) : No-load frequency at the maximum speed (Hz).
x
Max. voltage (E1-05) = No--load voltage at maximum speed (V)
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