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8-30
TI71M01D06-01EN 3rd Edition: 2012.12.01
8.5.6 FFT (Velocity Loop Transfer Characteristic Analysis Function)
This function measures and displays velocity loop transfer characteristics of control systems
including mechanical systems.
Resonance frequencies and other characteristics of a mechanical system can be identified
from the measurement results, which can be used for servo tuning tasks.
The measurement results can be checked on the screen, or saved as CSV files. In this way, it
is possible to analyze the data using spreadsheet software.
For more details of the operation, refer to Chapter 7.
Setup the amount of amplitude fluctuation to input.
Start/Stop measurement button
Save measurement result
Select display range
The motor vibrates left/right while frequency characteristics are being analyzed, which can be
very dangerous. Make sure that the safety is strictly observed when performing the operation.
Please avoid operating the motor from a terminal, etc. while the frequency characteristics are
being analyzed. The correct measurement result may not be obtained.
!
DANGER
CAUTION