22 online vibration monitor (fn207) – Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors User Manual
Page 238

6 Utility Functions (Fn
)
6-36
6.22 Online Vibration Monitor (Fn207)
The machine vibration can sometimes be suppressed by setting a notch filter or torque reference filter for the
vibration frequencies.
When online, vibration frequencies caused by machine resonance will be detected and the frequency that has
the highest peak will be displayed on the Panel Operator. The effective torque reference filter or notch filter
frequency for the vibration frequency will be automatically selected and the related parameters will be auto-
matically set.
In addition to this function, EasyFFT (Fn206) can be used to detect machine vibration and automatically make
notch filter settings. Use the following flowchart to determine which function should be used.
Start
When using mainly for servo gain adjustment, etc.
End
Vibration with
high-frequency noise
during operation
Turn OFF the servo, and
execute EasyFFT (Fn206).
No
No
Yes
Yes
Adjust servo gain.
Vibration
With the servo ON, execute
Online Vibration Monitor
(Fn207).
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