YASKAWA SGD7S

8.6 Autotuning without Host Reference
8.6.6 Automatically Adjusted Function Settings
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 Adjustment Results Are Not Satisfactory for Position Control
You may be able to improve the adjustment results by changing the settings of the positioning
completed width (Pn522) and the electronic gear ratio (Pn20E/Pn210).
If satisfactory results are still not possible, adjust the overshoot detection level (Pn561). That
may improve the adjustment results.
• Pn561 = 100% (default setting)
This will allow tuning with overshooting that is equivalent to the positioning completed width.
• Pn561 = 0%
This will allow tuning to be performed without overshooting within the positioning completed
width, but the positioning completed width may be extended.
8.6.6 Automatically Adjusted Function Settings
You can specify whether to automatically adjust the following functions during autotuning.
 Automatic Notch Filters
Normally, set Pn460 to n.1 (Adjust automatically) (default setting).
Vibration will be detected during autotuning without a host reference and a notch filter will be
adjusted.
Set Pn460 to n.0 (Do not adjust automatically) only if you do not change the setting of
the notch filter before you execute this function.
 Anti-Resonance Control Adjustment
This function reduces low vibration frequencies, for which the notch filters cannot be used.
Normally, set Pn160 to n.1 (Adjust automatically) (default setting).
Vibration will be detected during autotuning without a host reference and anti-resonance con-
trol will be automatically adjusted.
Pn561
Overshoot Detection Level
Setting Range Setting Unit Default Setting When Enabled Classification
0 to 100 1% 100 Immediately Setup
Speed
Position
Torque
Parameter Function When Enabled Classification
Pn460
n.
0
Do not adjust the first stage notch filter auto-
matically during execution of autotuning with-
out a host reference, autotuning with a host
reference, and custom tuning.
Immediately Tuning
n.
1
(default setting)
Adjust the first stage notch filter automatically
during execution of autotuning without a host
reference, autotuning with a host reference,
and custom tuning.
n.
0
Do not adjust the second stage notch filter
automatically during execution of autotuning
without a host reference, autotuning with a
host reference, and custom tuning.
n.
1
(default setting)
Adjust the second stage notch filter automati-
cally during execution of autotuning without a
host reference, autotuning with a host refer-
ence, and custom tuning.
Parameter Function When Enabled Classification
Pn160
n.0
Do not adjust anti-resonance control automat-
ically during execution of autotuning without a
host reference, autotuning with a host refer-
ence, and custom tuning.
Immediately Tuning
n.
1
(default setting)
Adjust anti-resonance control automatically
during execution of autotuning without a host
reference, autotuning with a host reference,
and custom tuning.