YASKAWA SGD7S

8.8 Custom Tuning
8.8.4 Operating Procedure
8-48
Vibration Suppression Functions
 Notch Filters and Automatic Anti-resonance Setting
If the vibration frequency that occurs when you increase the servo gains is at 1,000 Hz or
higher, notch filters are effective to suppress vibration. If the vibration is between 100 Hz and
1,000 Hz, anti-resonance control is effective.
 Automatic Setting
To set vibration suppression automatically, use the parameters to enable notch filters and auto-
matic anti-resonance control setting.
The notch filter frequency (stage 1 or 2) or anti-resonance control frequency that is effective for
the vibration that was detected during tuning will be automatically set.
• Auto-setting Cancel Buttons
The automatically set notch filter frequencies or the anti-resonance control frequencies
may not always suppress vibration. Click the Cancel Button to reset the notch filter fre-
quencies or the anti-resonance control frequencies to the values from just before these
frequencies were set automatically.
When they are reset, vibration detection will start again.
• Vib Detect Button
While the notch filter or anti-resonance control adjustment automatic setting function is
enabled, you can click the Vib Detect Button to manually detect vibration. When you
click the Vib Detect Button, the SERVOPACK will detect vibration at that time, and set
the notch filter frequency (stage 1 or 2) or anti-resonance control frequency that is
effective for the detected vibration. You can also perform manual vibration detection
even when the SERVOPACK does not detect vibration.
• Anti-res Ctrl Adj Button
You can use the Anti-res Ctrl Adj Button to execute the anti-resonance control func-
tion if fine-tuning is required. Refer to the following section.
8.9 Anti-Resonance Control Adjustment on page 8-51
• Vib Suppress Button
Click the Vib Suppress Button to suppress low and transient vibration (oscillation) of
approximately 1 Hz to 100 Hz that occurs during positioning. Refer to the following
section.
8.10 Vibration Suppression on page 8-56
 Autotuning with a Host Reference
You can perform autotuning with a host reference. Refer to the following section for details.
8.7 Autotuning with a Host Reference on page 8-35