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Operating manual
CNC 8070
20.
SETUP ASSISTANCE
(REF: 1505)
The Bode diagram
20.2 The Bode diagram
The Bode diagram is an assistance tool for adjusting the CNC and the drives. This utility may
be used to obtain the Bode diagram of the response amplitude depending on the frequency
of the input signal.
With this tool, it is possible to insert a PRBS signal into an axis, so that changing the frequency
and analyzing the response provides the behavior of the axes at different frequencies and
will give the user an idea of how it behaves with any signal.
This diagram may be used to check the system's gain, the bandwidth and the mechanical
resonance. All this helps achieve the proper adjustment of the loops, analyze mechanical
problems and check the final features.
The Bode diagram is an assistance tool that only shows the response of the system to the
various settings (adjustments); it is up to the technician to choose the best adjustment.
The Bode diagram requires a drive version V6.11 or newer.
The Bode diagram is not available with the ACSD drives.
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