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Changes for page 07 Adjustments

Last modified by Iris on 2025/07/24 11:03
From version 6.1
edited by Joey
on 2022/06/10 15:28
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**
... ... @@ -354,9 +354,10 @@
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  
357 -[[image:http://docs.we-con.com.cn/wiki/servo/download/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/WebHome/Wecon%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29_html_81c5e241dc9592c2.gif?rev=1.1||alt="Wecon VD2 SA Series Servo Drives Manual (Full V1.1)_html_81c5e241dc9592c2.gif"]] (7-1)
358 +(% style="text-align:center" %)
359 +[[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 -In formula (7-1), [[image:http://docs.we-con.com.cn/wiki/servo/download/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/WebHome/Wecon%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29_html_1acf7c31dc319d0b.gif?rev=1.1||alt="Wecon VD2 SA Series Servo Drives Manual (Full V1.1)_html_1acf7c31dc319d0b.gif"]] is the center frequency of notch filter, that is, the mechanical resonance frequency; [[image:http://docs.we-con.com.cn/wiki/servo/download/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/WebHome/Wecon%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29_html_d742f627f5179fb3.gif?rev=1.1||alt="Wecon VD2 SA Series Servo Drives Manual (Full V1.1)_html_d742f627f5179fb3.gif"]] 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.
361 +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.
360 360  
361 361  **(2) Depth grade of notch filter**
362 362  
... ... @@ -370,7 +370,7 @@
370 370  Figure 7-3 Notch characteristics, notch width, and notch depth
371 371  
372 372  (% style="text-align:center" %)
373 -[[image:http://docs.we-con.com.cn/wiki/servo/download/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/WebHome/Wecon%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29_html_10a8f8c1383fdf94.png?rev=1.1||alt="Wecon VD2 SA Series Servo Drives Manual (Full V1.1)_html_10a8f8c1383fdf94.png"]]
375 +[[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]]
374 374  
375 375  Figure 7-4 Frequency characteristics of notch filter
376 376  
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