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Changes for page 07 Adjustments

Last modified by Iris on 2025/07/24 11:03
From version 14.17
edited by Stone Wu
on 2022/07/06 15:49
Change comment: (Autosaved)
To version 11.2
edited by Joey
on 2022/06/11 15:30
Change comment: There is no comment for this version

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1 -Servo.1 User Manual.02 VD2 SA Series.WebHome
1 +Servo.2\. User Manual.06 VD2 SA Series Servo Drives Manual (Full V1\.1).WebHome
Author
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1 -XWiki.Stone
1 +XWiki.Joey
Content
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13 13  
14 14  (% class="table-bordered" %)
15 15  |(% colspan="3" style="text-align:center; vertical-align:middle" %)**Gain adjustment process**|(% style="text-align:center; vertical-align:middle" %)**Function**|(% style="text-align:center; vertical-align:middle" %)**Detailed chapter**
16 -|(% style="text-align:center; vertical-align:middle" %)1|(% colspan="2" style="text-align:center; vertical-align:middle" %)Online inertia recognition|(% style="text-align:center; vertical-align:middle" %)Use the host computer debugging platform software matched with the drive to automatically identify the load inertia ratio. With its own inertia identification function, the drive automatically calculates the load inertia ratio.|(% style="text-align:center; vertical-align:middle" %)__[[7.2>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HInertiarecognition]]__
17 -|(% style="text-align:center; vertical-align:middle" %)2|(% colspan="2" style="text-align:center; vertical-align:middle" %)Automatic gain adjustment|On the premise of setting the inertia ratio correctly, the drive automatically adjusts a set of matching gain parameters.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.1>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HAutomaticgainadjustment]]__
18 -|(% rowspan="2" style="text-align:center; vertical-align:middle" %)3|(% rowspan="2" style="text-align:center; vertical-align:middle" %)Manual gain adjustment|(% style="text-align:center; vertical-align:middle" %)Basic gain|On the basis of automatic gain adjustment, if the expected effect is not achieved, manually fine-tune the gain to optimize the effect.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.2>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HManualgainadjustment]]__
19 -|(% style="text-align:center; vertical-align:middle" %)Feedforward gain|The feedforward function is enabled to improve the followability.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.3>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__
20 -|(% style="text-align:center; vertical-align:middle" %)4|(% style="text-align:center; vertical-align:middle" %)Vibration suppression|(% style="text-align:center; vertical-align:middle" %)Mechanical resonance|The notch filter function is enabled to suppress mechanical resonance.|(% style="text-align:center; vertical-align:middle" %)__[[7.4.1>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HMechanicalresonancesuppressionmethods]]__
16 +|(% style="text-align:center; vertical-align:middle" %)1|(% colspan="2" style="text-align:center; vertical-align:middle" %)Online inertia recognition|(% style="text-align:center; vertical-align:middle" %)Use the host computer debugging platform software matched with the drive to automatically identify the load inertia ratio. With its own inertia identification function, the drive automatically calculates the load inertia ratio.|(% style="text-align:center; vertical-align:middle" %)__[[7.2>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HInertiarecognition]]__
17 +|(% style="text-align:center; vertical-align:middle" %)2|(% colspan="2" style="text-align:center; vertical-align:middle" %)Automatic gain adjustment|On the premise of setting the inertia ratio correctly, the drive automatically adjusts a set of matching gain parameters.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.1>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HAutomaticgainadjustment]]__
18 +|(% rowspan="2" style="text-align:center; vertical-align:middle" %)3|(% rowspan="2" style="text-align:center; vertical-align:middle" %)Manual gain adjustment|(% style="text-align:center; vertical-align:middle" %)Basic gain|On the basis of automatic gain adjustment, if the expected effect is not achieved, manually fine-tune the gain to optimize the effect.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.2>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HManualgainadjustment]]__
19 +|(% style="text-align:center; vertical-align:middle" %)Feedforward gain|The feedforward function is enabled to improve the followability.|(% style="text-align:center; vertical-align:middle" %)__[[7.3.3>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__
20 +|(% style="text-align:center; vertical-align:middle" %)4|(% style="text-align:center; vertical-align:middle" %)Vibration suppression|(% style="text-align:center; vertical-align:middle" %)Mechanical resonance|The notch filter function is enabled to suppress mechanical resonance.|(% style="text-align:center; vertical-align:middle" %)__[[7.4.1>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HMechanicalresonancesuppressionmethods]]__
21 21  
22 22  Table 7-1 Description of gain adjustment process
23 23  
... ... @@ -55,7 +55,7 @@
55 55  
56 56  Make sure that the motor's runable stroke at the stop position is greater than the set value of the number of inertia recognition circles P03-05, otherwise the maximum speed of inertia recognition P03-06 should be appropriately reduced.
57 57  
58 -During the automatic load inertia recognition process, if vibration occurs, the load inertia recognition should be stopped immediately.
58 +During the automatic load inertia recognition process, if vibration occurs, the load inertia identification should be stopped immediately.
59 59  )))
60 60  
61 61  The related function codes are shown in the table below.
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70 70  Operation setting
71 71  )))|(% style="text-align:center; vertical-align:middle; width:213px" %)(((
72 72  Effective immediately
73 -)))|(% style="text-align:center; vertical-align:middle; width:117px" %)300|(% style="text-align:center; vertical-align:middle; width:118px" %)100 to 10000|(% style="width:276px" %)Set load inertia ratio, 0.00 to 100.00 times|(% style="text-align:center; vertical-align:middle" %)0.01
73 +)))|(% style="text-align:center; vertical-align:middle; width:117px" %)200|(% style="text-align:center; vertical-align:middle; width:118px" %)100 to 10000|(% style="width:276px" %)Set load inertia ratio, 0.00 to 100.00 times|(% style="text-align:center; vertical-align:middle" %)0.01
74 74  |(% style="text-align:center; vertical-align:middle; width:117px" %)P03-05|(% style="text-align:center; vertical-align:middle; width:136px" %)(((
75 75  Inertia recognition turns
76 76  )))|(% style="text-align:center; vertical-align:middle; width:173px" %)(((
... ... @@ -137,14 +137,20 @@
137 137  
138 138  When debugging with the host computer debugging software, automatic rigidity level measurement can be carried out, which is used to select a set of appropriate rigidity grades as operating parameters. The operation steps are as follows:
139 139  
140 -* Step1 Confirm that the servo is in the ready state, the panel displays “rdy”, and the communication line is connected;
141 -* Step2 Open the host computer debugging software, enter the trial run interface, set the corresponding parameters, and click "Servo on";
142 -* Step3 Click the "forward rotation" or "reverse rotation" button to confirm the travel range of the servo operation;
143 -* Step4 After the "start recognition" of inertia recognition lights up, click "start recognition" to perform inertia recognition, and the load inertia can be measured.
144 -* Step5 After the inertia recognition test is completed, click "Save Inertia Value";
145 -* Step6 Click "Next" at the bottom right to go to the parameter adjustment interface, and click "Parameter measurement" to start parameter measurement.
146 -* Step7 After the parameter measurement is completed, the host computer debugging software will pop up a confirmation window for parameter writing and saving.
140 +Step1 Confirm that the servo is in the ready state, the panel displays “rdy”, and the communication line is connected;
147 147  
142 +Step2 Open the host computer debugging software, enter the trial run interface, set the corresponding parameters, and click "Servo on";
143 +
144 +Step3 Click the "forward rotation" or "reverse rotation" button to confirm the travel range of the servo operation;
145 +
146 +Step4 After the "start recognition" of inertia recognition lights up, click "start recognition" to perform inertia recognition, and the load inertia can be measured.
147 +
148 +Step5 After the inertia recognition test is completed, click "Save Inertia Value";
149 +
150 +Step6 Click "Next" at the bottom right to go to the parameter adjustment interface, and click "Parameter measurement" to start parameter measurement.
151 +
152 +Step7 After the parameter measurement is completed, the host computer debugging software will pop up a confirmation window for parameter writing and saving.
153 +
148 148  (% class="table-bordered" %)
149 149  |(% style="text-align:center; vertical-align:middle" %)[[image:image-20220611152634-2.png]]
150 150  |(((
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223 223  
224 224  Table 7-5 Speed loop gain parameters
225 225  
226 -(% style="text-align:center" %)
227 -[[image:image-20220706152743-1.jpeg]]
228 -
229 -Figure 7-3 Speed loop gain effect illustration
230 -
231 231  **(2) Speed loop integral time constant**
232 232  
233 233  The speed loop integral time constant is used to eliminate the speed loop deviation. Decreasing the integral time constant of the speed loop can increase the speed of the speed following. If the set value is too small, is will easily cause speed overshoot or vibration. When the time constant is set too large, the integral action will be weakened, resulting in a deviation of the speed loop. Related function codes are shown as below.
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263 263  
264 264  Table 7-6 Speed loop integral time constant parameters
265 265  
266 -(% style="text-align:center" %)
267 -[[image:image-20220706153140-2.jpeg]]
268 -
269 -Figure 7-4 Speed loop integral time constant effect illustration
270 -
271 271  **(3) Position loop gain**
272 272  
273 273  Determine the highest frequency of the position instruction that the position loop can follow the change. Increasing this parameter can speed up the positioning time and improve the ability of the motor to resist external disturbances when the motor is stationary. However, if the setting value is too large, the system may be unstable and oscillate. The related function codes are shown as below.
... ... @@ -291,11 +291,6 @@
291 291  
292 292  Table 7-7 Position loop gain parameters
293 293  
294 -(% style="text-align:center" %)
295 -[[image:image-20220706153656-3.jpeg]]
296 -
297 -Figure 7-5 Position loop gain effect illustration
298 -
299 299  **(4) Torque instruction filter time**
300 300  
301 301  Selecting an appropriate torque filter time constant could suppress mechanical resonance. The larger the value of this parameter, the stronger the suppression ability. If the setting value is too large, it will decrease the current loop response frequency and cause needle movement. The related function codes are shown as below.
... ... @@ -318,7 +318,7 @@
318 318  
319 319  Speed feedforward could be used in position control mode and full closed-loop function. It could improve the response to the speed instruction and reduce the position deviation with fixed speed.
320 320  
321 -Speed feedforward parameters are shown in __[[Table 7-9>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__. Torque feedforward parameters are shown in __[[Table 7-10>>https://docs.we-con.com.cn/bin/view/Servo/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__.
312 +Speed feedforward parameters are shown in __[[Table 7-9>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__. Torque feedforward parameters are shown in __[[Table 7-10>>http://13.229.109.52:8080/wiki/servo/view/2.%20User%20Manual/06%20VD2%20SA%20Series%20Servo%20Drives%20Manual%20%28Full%20V1.1%29/07%20Adjustments/#HFeedforwardgain]]__.
322 322  
323 323  Torque feedforward could improve the response to the torque instruction and reduce the position deviation with fixed acceleration and deceleration.
324 324  
... ... @@ -355,7 +355,7 @@
355 355  
356 356  **(2) Notch filter**
357 357  
358 -The notch filter can achieve the expectation of suppressing mechanical resonance by reducing the gain at a specific frequency. When setting the notch filter correctly, the vibration can be effectively suppressed. You can try to increase the servo gain. The principle of the notch filter is shown in __[[Figure 7-3>>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/image-20220608174259-3.png?rev=1.1]]__.
349 +The notch filter can achieve the expectation of suppressing mechanical resonance by reducing the gain at a specific frequency. When setting the notch filter correctly, the vibration can be effectively suppressed. You can try to increase the servo gain. The principle of the notch filter is shown in __[[Figure 7-3>>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_c84670518f0b6362.gif?rev=1.1]]__.
359 359  
360 360  == **Notch filter** ==
361 361  
... ... @@ -374,7 +374,7 @@
374 374  
375 375  The depth grade of notch filter represents the ratio relationship between input and output at center frequency.
376 376  
377 -When the notch filter depth grade is 0, the input is completely suppressed at center frequency. When the notch filter depth grade is 100, the input is completely passable at center frequency. Therefore, the smaller the the notch filter depth grade is set, the deeper the the notch filter depth, and the stronger the suppression of mechanical resonance. But the system may be unstable, you should pay attention to it when using it. The specific relationship is shown in __[[Figure 7-4>>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]]__.
368 +When the notch filter depth grade is 0, the input is completely suppressed at center frequency. When the notch filter depth grade is 100, the input is completely passable at center frequency. Therefore, the smaller the the notch filter depth grade is set, the deeper the the notch filter depth, and the stronger the suppression of mechanical resonance. But the system may be unstable, you should pay attention to it when using it. The specific relationship is shown in __[[Figure 7-4>>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]]__.
378 378  
379 379  (% style="text-align:center" %)
380 380  [[image:image-20220608174259-3.png]]
... ... @@ -391,26 +391,26 @@
391 391  **Setting method**
392 392  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
393 393  **Effective time**
394 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)**Default value**|(% style="text-align:center; vertical-align:middle; width:102px" %)**Range**|(% style="text-align:center; vertical-align:middle; width:391px" %)**Definition**|(% style="text-align:center; vertical-align:middle; width:248px" %)**Unit**
385 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)**Default value**|(% style="text-align:center; vertical-align:middle; width:97px" %)**Range**|(% style="text-align:center; vertical-align:middle; width:334px" %)**Definition**|(% style="text-align:center; vertical-align:middle" %)**Unit**
395 395  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-05|(% style="text-align:center; vertical-align:middle; width:197px" %)1st notch filter frequency|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
396 396  Operation setting
397 397  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
398 398  Effective immediately
399 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)300|(% style="text-align:center; vertical-align:middle; width:102px" %)250 to 5000|(% style="width:391px" %)Set the center frequency of the 1st notch filter. When the set value is 5000, the function of notch filter is invalid.|(% style="text-align:center; vertical-align:middle; width:248px" %)Hz
390 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)300|(% style="text-align:center; vertical-align:middle; width:97px" %)250 to 5000|(% style="width:334px" %)Set the center frequency of the 1st notch filter. When the set value is 5000, the function of notch filter is invalid.|(% style="text-align:center; vertical-align:middle" %)Hz
400 400  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-06|(% style="text-align:center; vertical-align:middle; width:197px" %)1st notch filter depth|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
401 401  Operation setting
402 402  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
403 403  Effective immediately
404 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)100|(% style="text-align:center; vertical-align:middle; width:102px" %)0 to 100|(% style="width:391px" %)(((
395 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)100|(% style="text-align:center; vertical-align:middle; width:97px" %)0 to 100|(% style="width:334px" %)(((
405 405  0: all truncated
406 406  
407 407  100: all passed
408 -)))|(% style="text-align:center; vertical-align:middle; width:248px" %)-
399 +)))|(% style="text-align:center; vertical-align:middle" %)-
409 409  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-07|(% style="text-align:center; vertical-align:middle; width:197px" %)1st notch filter width|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
410 410  Operation setting
411 411  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
412 412  Effective immediately
413 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)4|(% style="text-align:center; vertical-align:middle; width:102px" %)0 to 12|(% style="width:391px" %)(((
404 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)4|(% style="text-align:center; vertical-align:middle; width:97px" %)0 to 12|(% style="width:334px" %)(((
414 414  0: 0.5 times the bandwidth
415 415  
416 416  4: 1 times the bandwidth
... ... @@ -418,26 +418,26 @@
418 418  8: 2 times the bandwidth
419 419  
420 420  12: 4 times the bandwidth
421 -)))|(% style="text-align:center; vertical-align:middle; width:248px" %)-
412 +)))|(% style="text-align:center; vertical-align:middle" %)-
422 422  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-08|(% style="text-align:center; vertical-align:middle; width:197px" %)2nd notch filter frequency|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
423 423  Operation setting
424 424  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
425 425  Effective immediately
426 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)500|(% style="text-align:center; vertical-align:middle; width:102px" %)250 to 5000|(% style="width:391px" %)Set the center frequency of the 2nd notch filter. When the set value is 5000, the function of the notch filter is invalid.|(% style="text-align:center; vertical-align:middle; width:248px" %)Hz
417 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)500|(% style="text-align:center; vertical-align:middle; width:97px" %)250 to 5000|(% style="width:334px" %)Set the center frequency of the 2nd notch filter. When the set value is 5000, the function of the notch filter is invalid.|(% style="text-align:center; vertical-align:middle" %)Hz
427 427  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-09|(% style="text-align:center; vertical-align:middle; width:197px" %)2nd notch filter depth|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
428 428  Operation setting
429 429  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
430 430  Effective immediately
431 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)100|(% style="text-align:center; vertical-align:middle; width:102px" %)0 to 100|(% style="width:391px" %)(((
422 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)100|(% style="text-align:center; vertical-align:middle; width:97px" %)0 to 100|(% style="width:334px" %)(((
432 432  0: all truncated
433 433  
434 434  100: all passed
435 -)))|(% style="text-align:center; vertical-align:middle; width:248px" %)-
426 +)))|(% style="text-align:center; vertical-align:middle" %)-
436 436  |(% style="text-align:center; vertical-align:middle; width:113px" %)P04-10|(% style="text-align:center; vertical-align:middle; width:197px" %)2nd notch filter width|(% style="text-align:center; vertical-align:middle; width:143px" %)(((
437 437  Operation setting
438 438  )))|(% style="text-align:center; vertical-align:middle; width:164px" %)(((
439 439  Effective immediately
440 -)))|(% style="text-align:center; vertical-align:middle; width:127px" %)4|(% style="text-align:center; vertical-align:middle; width:102px" %)0 to 12|(% style="width:391px" %)(((
431 +)))|(% style="text-align:center; vertical-align:middle; width:107px" %)4|(% style="text-align:center; vertical-align:middle; width:97px" %)0 to 12|(% style="width:334px" %)(((
441 441  0: 0.5 times the bandwidth
442 442  
443 443  4: 1 times the bandwidth
... ... @@ -445,6 +445,6 @@
445 445  8: 2 times the bandwidth
446 446  
447 447  12: 4 times the bandwidth
448 -)))|(% style="text-align:center; vertical-align:middle; width:248px" %)-
439 +)))|(% style="text-align:center; vertical-align:middle" %)-
449 449  
450 450  Table 7-11 Notch filter function code parameters
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