Tuning-Less Function; Application Restrictions - YASKAWA SGD7C-***AMAA*** Product Manual

8.4 Tuning-less Function

8.4.1 Application Restrictions

8.4

Tuning-less Function

The tuning-less function performs autotuning to obtain a stable response regardless of the type
of machine or changes in the load. Autotuning is started when the servo is turned ON.
8.4.1

Application Restrictions

The following application restrictions apply to the tuning-less function.
Vibration Detection
Level Initialization
Moment of Inertia
Estimation
Autotuning without
Host Reference
Autotuning with Host
Reference
Custom Tuning
Adjust Anti-Reso-
nance Control
Vibration Suppression
Easy FFT
Friction Compensa-
tion
Gain Selection
Mechanical Analysis
: Yes ×: No
*
8-12
 The tuning-less function is disabled during torque control.
 The Servomotor may momentarily emit a sound the first time the servo is turned ON after
the Servomotor is connected to the machine. This sound is caused by setting the automatic
notch filter. It does not indicate a problem. The sound will not be emitted from the next time
the servo is turned ON.
 The Servomotor may vibrate if it exceeds the allowable load moment of inertia.
If that occurs, set the tuning-less load level to 2 (Pn170 = n.2
less rigidity level (Pn170 = n.
 To ensure safety, make sure that you can perform an emergency stop at any time when you
execute the tuning-less function.
Function Executable?*



CAUTION
 
X ).
Disable the tuning-less function (Pn170 = n.
×
you execute moment of inertia estimation.
Disable the tuning-less function (Pn170 = n.
×
you execute autotuning without a host reference.
×
×
×
×
The tuning-less function is disabled while you execute Easy
FFT and then it is enabled when Easy FFT has been com-
pleted.
×
×
The tuning-less function is disabled while you execute
mechanical analysis and then it is enabled when mechanical
analysis has been completed.

) or reduce the tuning-
Remarks
–

0) before

0) before
–
–
–
–
–
–