3.6 Setup Procedure
3.6.7 Gain Adjustment
3-19
3
Pr
essur
e Feedback Contr
ol
Gain Adjustment Flowchart
A gain adjustment flowchart for pressure feedback control 2 is provided below.
S
tart of Adju
s
tment
Enter the pre
ss
ure reference.
S
et Pn45E (Pre
ss
ure Feedback Reference Filter
Time Con
s
tant) to the de
s
ired
s
ettling time.
Increa
s
e the value of Pn4A0
(Pre
ss
ure Feedback One-parameter Gain Level).
Vibration
No vibration
Target reference not followed.
No vibration
Vibration or over
s
hooting
Check the re
s
pon
s
e
waveform.
End of Adju
s
tment
Check the re
s
pon
s
e
waveform.
Check the re
s
pon
s
e
waveform.
Increa
s
e Pn4A7 and decrea
s
e Pn4A8.
Adju
s
t Pn45E to a
s
uitable value.
Torque
s
aturation occur
s
.
Enter the value of Pn100 for Pn4A7 (Pre
ss
ure
Feedback Control 2
S
tability Gain).
Enter the value of Pn101 for Pn4A8 (Pre
ss
ure
Feedback Control 2 Integral Time).
Enter the value of Pn10
3
for Pn4AC (Pre
ss
ure
Feedback Moment of Inertia Ratio).*
*If the output differ
s
greatly between pre
ss
ing and
non-pre
ss
ing
s
tate
s
,
s
et Pn4AC to the following
value: Pn10
3
× 1/Output ratio at end of machine2.
Execute advanced autotuning to e
s
timate the
s
peed loop gain (Pn100),
s
peed loop integral
time con
s
tant (Pn101), and moment of inertia
ratio (Pn10
3
).
Содержание SGD7S-R70A20A023F40B
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