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3 Utility Function Mode
3.2.28 Advanced Autotuning by Reference (Fn202)
(3)
Failure in Operation
When "NO-OP" Flashes on the Display
The main circuit power supply was OFF.
An alarm or warning occurred.
Overtraveling occurred.
Gain setting 2 was selected by gain switching. Disable the automatic gain switching.
HWBB operated.
When "Error" Flashes on the Display
The gain adjustment
was not successfully
completed.
The positioning
completed signal
(/COIN) did not turn ON
within approximately 10
seconds after
positioning adjustment
was completed.
3-70
Probable Cause
Error
Machine vibration is occur-
ring or the positioning com-
pleted signal (/COIN) is
turning ON and OFF when
the servomotor is stopped.
The positioning completed
width is too narrow or propor-
tional control (P control) is
being used.
Turn ON the main circuit power supply.
Remove the cause of the alarm or the warning.
Remove the cause of the overtravel.
Disable the HWBB function.
Probable Cause
Corrective Actions
Corrective Actions
• Increase the set value for
Pn522.
• Change the mode from 2 to 3.
• If machine vibration occurs,
suppress the vibration with the
anti-resonance control adjust-
ment function and the vibra-
tion suppression function.
• Increase the set value for
Pn522.
• Set 0 to V_PPI of Option field.
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