Troubleshooting Problems In Autotuning Without A Host Reference - YASKAWA SGD7S Product Manual

8.6 Autotuning without Host Reference

8.6.5 Troubleshooting Problems in Autotuning without a Host Reference

9.
Confirm safety around moving parts and click the Yes Button.
The motor will start operating and tuning will be executed.
Vibration that occurs during tuning will be detected automatically and suitable settings will be made
for that vibration. When the settings have been completed, the indicators for the functions that were
used will light at the lower left of the dialog box.
10.
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 without a host reference.
8.6.5 Troubleshooting Problems in Autotuning without a Host
Reference
The following tables give the causes of and corrections for problems that may occur in autotun-
ing without a host reference.
 Autotuning without a Host Reference Was Not Performed
Main circuit power supply is OFF.
An alarm or warning occurred.
Overtraveling occurred.
The second gains were selected with the gain selection. Disable automatic gain switching.
The HWBB was activated.
The setting of the travel distance is too small.
The settings for the tuning-less function are not correct.
8-30
Possible Cause Corrective Action
Turn ON the main circuit power supply.
Remove the cause of the alarm or warning.
Remove the cause of overtraveling.
Release the HWBB.
Set the travel distance again in step 6 of the proce-
dure.
• Disable the tuning-less function (Pn170 =
n.0).
• Enable the tuning-less function (Pn170 =
n.1) and specify moment of inertia estima-
tion.