Page 673 - The Mechatronics Handbook
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FIGURE 21.13 Root locus for velocity feedback of load axis.
FIGURE 21.14 Root locus for velocity feedback of motor axis.
the sensors in the mechanical system. A careful choice of these sensor locations is therefore crucial for
the successful application of a controller. It should be noted that using a properly designed set-point
generator could prevent resonance, as seen in Fig. 21.10. The set point generator should not excite the
resonance frequencies, for instance, by using a low pass filter with bandwidth lower than the resonance
frequencies. However, such a set-point generator does not solve the above-mentioned stability problems.
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