8.7 Autotuning with a Host Reference
8.7.5 Troubleshooting Problems in Autotuning with a Host Reference
8-39
8
T
uning
11.
When tuning has been completed, click the
Finish
Button.
The results of tuning will be set in the parameters and you will return to the Tuning Dialog Box.
This concludes the procedure to perform autotuning with a host reference.
8.7.5
Troubleshooting Problems in Autotuning with a Host
Reference
The following tables give the causes of and corrections for problems that may occur in autotun-
ing with a host reference.
Autotuning with a Host Reference Was Not Performed
Troubleshooting Errors
Adjustment Results Are Not Satisfactory for Position Control
You may be able to improve the adjustment results by changing the settings of the positioning
completed width (Pn522) and position reference unit (
position user unit
(2701 hex)).
If satisfactory results are still not possible, adjust the overshoot detection level (Pn561). That
may improve the adjustment results.
•
Pn561 = 100% (default setting)
This will allow tuning with overshooting that is equivalent to the positioning completed width.
•
Pn561 = 0%
This will allow tuning to be performed without overshooting within the positioning completed
width, but the positioning completed width may be extended.
8.7.6
Automatically Adjusted Function Settings
These function settings are the same as for autotuning without a host reference. Refer to the
following section.
8.6.6 Automatically Adjusted Function Settings
Possible Cause
Corrective Action
Main circuit power supply is OFF.
Turn ON the main circuit power supply.
An alarm or warning occurred.
Remove the cause of the alarm or warning.
Overtraveling occurred.
Remove the cause of overtraveling.
The second gains were selected with the gain selection. Disable automatic gain switching.
The HWBB was activated.
Release the HWBB.
Error
Possible Cause
Corrective Action
The gain adjustments
were not successfully
completed.
Machine vibration
occurs or positioning
completion is not stable
when the Servomotor
stops.
•
Increase the setting of Pn522 (2522 hex) (Positioning
Completed Width).
•
Change the mode from 2 to 3.
•
If machine vibration occurs, suppress the vibration with
the anti-resonance control function and the vibration
suppression function.
Positioning was not
completed within
approximately 10
seconds after posi-
tion adjustment was
completed.
The positioning com-
pleted width is too nar-
row or proportional
control is being used.
Increase the setting of Pn522 (2522 hex) (Positioning
Completed Width).
Pn561
(2561
hex)
Overshoot Detection Level
Setting Range
Setting Unit
Default Setting
When Enabled
Classification
0 to 100
1%
100
Immediately
Setup
Speed
Position
Torque
