YASKAWA SGD7S Product Manual page 338

The notch filter frequency characteristics for different notch filter Q values are shown below.
Q = 1.0
Frequency [Hz]
0
-5
-10
-15
-20
Note: The above notch filter frequency characteristics are based on calculated values and may be different from
actual characteristics.
• Notch Filter Depth
The setting of the notch filter depth determines the depth of the frequencies that are filtered for
the notch filter frequency. The depth of the notch changes with the notch filter depth. The
smaller the notch filter depth is, the deeper the notch is, increasing the effect of vibration sup-
pression. However, if the value is too small, vibration can actually increase.
The notch filter is disabled if the notch filter depth, d, is set to 1.0 (i.e., if Pn419 is set to 1,000).
The notch filter frequency characteristics for different notch filter depths are shown below.
Frequency [Hz]
0
-10
d = 0.5
d = 0.3
-20
d = 0.1
-30
d = 0 (default setting)
-40
-50
Note: The above notch filter frequency characteristics are based on calculated values and may be different from
actual characteristics.
You can enable or disable the notch filter with Pn408 and Pn416.
Parameter

n. 0
(default setting)

n. 1
Pn408
 
n. 0
(default setting)
 
n. 1

n. 0
(default setting)

n. 1
 
n. 0
(default setting)
Pn416
 
n. 1
 
n. 0
(default setting)
 
n. 1
Q = 0.7
Q = 0.5
d = 1.0 (notch filter disabled)
d = 0.7
Meaning
Disable first stage notch filter.
Enable first stage notch filter.
Disable second stage notch filter.
Enable second stage notch filter.
Disable third stage notch filter.
Enable third stage notch filter.
Disable fourth stage notch filter.
Enable fourth stage notch filter.
Disable fifth stage notch filter.
Enable fifth stage notch filter.
8.13 Manual Tuning
8.13.1 Tuning the Servo Gains
When Enabled Classification
Immediately Setup
8
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