15.07.2013 Views

num parameter manual - Documentation CN

num parameter manual - Documentation CN

num parameter manual - Documentation CN

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

P30 P31 P32 P20 P21 P56 P22 P23 P57 P55 P24 P52 P19 P33 P53 P66<br />

Speed ref.<br />

Desired<br />

ref. P55 = 50 P55 = 0<br />

KVAR<br />

KVAR<br />

Anticipation does not change the gain of the speed loop.<br />

Following error<br />

! CAUTION<br />

This <strong>parameter</strong> must be set to zero to determine <strong>parameter</strong> P21 (KVAR).<br />

Servo-Control<br />

Words N8 to N15<br />

For very high speed machining, a filter smoothes the speed reference. This filter averages several consecutive<br />

settings.<br />

The <strong>num</strong>ber of terms used for the filter specifies the <strong>num</strong>ber of calculated references averaged to calculate the value<br />

applied to the system.<br />

Filtered Reference Calculation Method<br />

Ri= ′<br />

∑ Ri' -1 + Ri - Ri-2 j -1<br />

2j +1<br />

Each word specifies the <strong>num</strong>ber of terms «2j+1». The order of magnitude of «2j+1» is around 5.<br />

en-938818/7 6 - 27<br />

6

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!