CNC 8070
(REF: 1505)
20
·345·
SETUP ASSISTANCE
The set of utilities of the setup assistance is meant to speed up and simplify the machine
setup procedure. The different tools are accessed from the horizontal softkey menu.
It must be borne in mind that these utilities are assistance tools that only show the system's
response to the various adjustments; it is always up to the technician to choose the best
adjustment.
The oscilloscope
The oscilloscope is an assistance tool for adjusting the CNC and the drives. This utility can
graphically show 4 previously selected variables, modify their values and check the different
responses of the system.
Using the oscilloscope, it is possible to edit the CNC's machine parameters that affect the
adjustment; it is also possible to modify at the Sercos drives the variables that have writing
permission and it is possible to change the variables and parameters at the Mechatrolink
devices (Mlink-II). In any case, a protection password is required for modifying the CNC's
machine parameters or the variables of a Sercos drive.
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 sinusoidal 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 circularity (roundness) test
This tool helps improve and adjust the axis reversal peak, an effect that appears when the
axes reverse their moving direction. With this utility, a circle may be executed with the axes
and graphically show the result. This graphic shows the difference between the actual (real)
coordinate obtained from the feedback device and the theoretical coordinate calculated at
each point.
The same screen showing the graphics also shows the machine parameters that affect the
movement reversal. These parameters may be modified while running the test, thus being
possible to evaluate the response of the system to these changes and optimize the
adjustment on the go.
The oscilloscope.
The Bode diagram.
The circularity (roundness) test.
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