5 Adjustments
5.5.2 One-parameter Tuning Procedure
5-36
7
Adjust the responsiveness by changing the FF and FB
levels.
Press the
Key to display the present level. Move
the cursor with the
Key and change the set value
with the
or
Keys.
After the setting is changed, press the
Key.
<When vibration occurs>
The higher the level, the greater the responsiveness
will be. If the value is too large, however, vibration
will occur.
If that occurs, press the
Key. The SERVOPACK
will automatically detect the vibration frequencies
and make notch filter or anti-resonance control set-
tings. When the notch filter is set, “NF1” or “NF2”
will be displayed on the bottom row.
When the anti-resonance control is set, “ARES” is
displayed.
Notes:
• If the vibration is great, the vibration frequency
will be detected even if the
Key is not pressed
and a notch filter or anti-resonance control will be
set.
• The higher the FF level, the shorter the positioning
time will be. If the level is too high, however, over-
shooting will occur.
• If the FF level is changed when the linear servomo-
tor is stopped and no reference is input, this new
value will be effective, and the linear servomotor’s
responsiveness will be changed. To safely adjust
the FF level, wait until all operations have been
completed and check the responsiveness. When the
FF level is changed largely, vibration may occur
because the responsiveness is changed rapidly.
• The message, “FF LEVEL”, blinks until the
machine reaches the effective FF level. If the linear
servomotor does not stop approximately 10 sec-
onds after the FF level is changed, the setting is no
longer effective and will automatically return to the
previous setting.
• If the vibration is too small, the SERVOPACK may
not automatically detect the vibration frequencies.
If so, press the
Key to forcibly start the detec-
tion.
8
Press the
Key. A confirmation screen is dis-
played after level adjustment.
9
• Press the
Key. The adjusted values will be
written to the SERVOPACK, “DONE” will be dis-
played for approx. 2 seconds, and then “RUN” will
be displayed.
• Not to save the values set in step 7, press the
Key.
• To readjust responsiveness by changing the level
before saving the values set in step 7, press the
Key. The screen in step 7 will appear.
10
Press the
Key to complete the one-parameter
tuning operation. The screen in step 1 will appear
again.
Step
Display after Operation
Keys
Operation
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