YASKAWA SGD7S-R70A20A023F40B Product Manual page 71

 Gain Adjustment Flowchart
A gain adjustment flowchart for pressure feedback control 1 is provided below.
No vibration
No vibration
Start of Adjustment
Set the parameters to
the default settings.
No vibration
Check the
response waveform.
Vibration
Is Pn452
Yes
(Pressure Feedback Loop
Proportional Gain 2)
set to 0?
No
Decrease Pn452 (Pressure Feedback
Loop Proportional Gain 2).
Decrease Pn442 (Pressure Feedback
Loop Integral Time) by 0.1 ms.
Check the
response waveform.
Vibration or overshooting
Set Pn442 (Pressure Feedback Loop
Integral Time) to the optimum value.
Increase Pn452 (Pressure Feedback
Loop Proportional Gain 2) by 10%.
Check the
response waveform.
Vibration or overshooting
Set Pn452 (Pressure Feedback
Loop Proportional Gain 2)
to the optimum value.
A
3.6.7 Gain Adjustment
Increase Pn442 (Pressure Feedback
Loop Integral Time).
Adjustment of Pn442
(integral time)
Adjustment of Pn452
(proportional gain)
3.6 Setup Procedure
3
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