S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
36
In certain applications you can reduce system acoustic noise levels by raising parameter Pr18 by
a few points. Fig.5 shows that the optimal system response is accompanied by a current fluctuation
that can generate acoustic noise and mechanical vibration; increasing Pr18 to the value 3 will improve
this condition significantly (fig. 6).
Fig.5
Fig.6
If the driven mechanical system is prone to oscillation, we recommend using very low values for
Pr16; in this configuration the HPD N drive will smooth out motor torque requests to prevent the
creation of mechanical oscillation. Figure 7 shows this type of configuration.
