This concludes the procedure to perform autotuning with a host reference.
9.8.6 Troubleshooting Problems in Autotuning with a Host Reference
The following tables give the causes of and corrections for problems that may occur in
autotuning with a host reference.
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
the positioning completion
signal is not stable when
the Servomotor stops.
n Increase the setting of
Pn522 (Positioning
Completed Width).
n Change the mode from
2 to 3.
n If machine vibration
occurs, suppress the
vibration with the anti-
resonance control
adjustment and the
vibration suppression
function.
Positioning was not com-
pleted within approximately
10 seconds after position
adjustment was completed.
The positioning completed
width is too narrow or pro-
portional control is being
used.
Increase the setting of
Pn522 (Positioning Com-
pleted Width).
You may be able to improve the adjustment results by changing the settings of the posi-
tioning completed width (Pn522) and position reference unit (position user unit (2301h)).
If satisfactory results are still not possible, adjust the overshoot detection level (Pn561).
That may improve the adjustment results.
n Pn561 = 100% (default setting)
This will allow tuning with overshooting that is equivalent to the positioning completed
width.
n Pn561 = 0%
This will allow tuning to be performed without overshooting within the positioning com-
pleted width, but the positioning completed width may be extended.
Autotuning with a Host
Reference Was Not Per-
formed
Troubleshooting Errors
Adjustment Results Are
Not Satisfactory for Posi-
tion Control
Sigma-7 Series SERVOPACKs
Tuning
Autotuning with a Host Reference > Troubleshooting Problems in Autotuning with a Host Reference
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 348
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