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Changes for page 07 Adjustments

Last modified by Iris on 2025/07/24 11:03
From version 9.1
edited by Joey
on 2022/06/10 15:32
Change comment: There is no comment for this version
To version 10.1
edited by Joey
on 2022/06/10 15:34
Change comment: There is no comment for this version

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340 340  
341 341  By setting the filter time constant, the torque instruction is attenuated in the high frequency range above the cutoff frequency, so as to achieve the expectation of suppressing mechanical resonance. The cut-off frequency of the torque instruction filter could be calculated by the following formula:
342 342  
343 +(% style="text-align:center" %)
343 343  [[image:https://docs.we-con.com.cn/bin/download/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/WebHome/40.png?rev=1.1]]
344 344  
345 345  **(2) Notch filter**
... ... @@ -354,6 +354,7 @@
354 354  
355 355  The notch width grade is used to express the ratio of the notch width to the center frequency of the notch:
356 356  
358 +(% style="text-align:center" %)
357 357  [[image:https://docs.we-con.com.cn/bin/download/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/WebHome/41.png?rev=1.1]]
358 358  
359 359  In formula (7-1), [[image:https://docs.we-con.com.cn/bin/download/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/WebHome/42.png?rev=1.1]] is the center frequency of notch filter, that is, the mechanical resonance frequency; [[image:https://docs.we-con.com.cn/bin/download/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/WebHome/43.png?rev=1.1]] is the width of notch filter, which represents the frequency bandwidth with an amplitude attenuation rate of **-3dB** relative to the center frequency of notch filter.
... ... @@ -369,6 +369,7 @@
369 369  
370 370  Figure 7-3 Notch characteristics, notch width, and notch depth
371 371  
374 +(% style="text-align:center" %)
372 372  [[image:https://docs.we-con.com.cn/bin/download/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/WebHome/44.png?rev=1.1]]
373 373  
374 374  Figure 7-4 Frequency characteristics of notch filter