Changes for page 07 Adjustments
Last modified by Iris on 2025/07/24 11:03
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... ... @@ -184,7 +184,7 @@ 184 184 185 185 The default current loop gain of the servo drive has ensured sufficient responsiveness. Generally, no adjustment is required. Only the position loop gain, speed loop gain and other auxiliary gains need to be adjusted. 186 186 187 -This servo drive has two sets of gain parameters for position loop and speed loop. The user can switch the two sets of gain parameters according to the setting value of P02-07 the 2nd gain switching mode. The parameters are arebelow.187 +This servo drive has two sets of gain parameters for position loop and speed loop. The user can switch the two sets of gain parameters according to the setting value of P02-07 the 2nd gain switching mode. The parameters are below. 188 188 189 189 (% class="table-bordered" %) 190 190 |=(% scope="row" style="text-align: center; vertical-align: middle; width: 450px;" %)**Function code**|=(% style="text-align: center; vertical-align: middle; width: 751px;" %)**Name** ... ... @@ -344,16 +344,19 @@ 344 344 345 345 == **Model Tracking Control Function** == 346 346 347 -Model tracking control is suitable for position control mode, which adds a model loop outside the three loop. In the model loop, new position commands, speed feedforward and torque feedforward and other control quantities are generated according to the user's response requirements to the system and the ideal motor control model. Applying these control quantities to the actual control loop can significantly improve the response performance and positioning performance of the position control, the design block diagram is as follows: 347 +Model tracking control is suitable for position control mode, which adds a model loop outside the three loops. In the model loop, new position commands, speed feedforward and torque feedforward and other control quantities are generated according to the user's response requirements to the system and the ideal motor control model. Applying these control quantities to the actual control loop can significantly improve the response performance and positioning performance of the position control, the design block diagram is as follows: 348 348 349 349 (% style="text-align:center" %) 350 -[[image:20230515-7.png]] 350 +((( 351 +(% class="wikigeneratedid img-thumbnail" style="display:inline-block" %) 352 +[[**Figure 7-7 Block Diagram of Model Tracking Control Design**>>image:20230515-7.png||id="20230515-7.png"]] 353 +))) 351 351 352 352 The usage method and conditions of model tracking control: 353 353 354 354 ~1. Correctly set the inertia ratio of the system P3-1, which can be obtained by monitoring the real-time load inertia ratio of U0-20. 355 355 356 -2. Set the load rigidity level P3-2, set an appropriate value, it is not need to set a high rigidity level (recommended value 17~~21 under rigid load).359 +2. Set the load rigidity level P3-2, set an appropriate value, it does not need to set a high rigidity level (recommended value 17~~21 under rigid load). 357 357 358 358 3. Set P2-20=1 to enable the function of model tracking control. 359 359 ... ... @@ -361,73 +361,58 @@ 361 361 362 362 5. After the responsiveness meets the requirements, user can adjust the parameters appropriately to increase the load rigidity level P3-2. 363 363 367 +(% class="box infomessage" %) 368 +((( 364 364 **✎Note**: Model tracking control is only available in position mode, and cannot be used in other modes. 365 365 366 -|**Function code**|**Name**|((( 367 -**Setting** 368 - 369 -**method** 371 +(% class="table-bordered" %) 372 +|=(% scope="row" style="text-align: center; vertical-align: middle; width: 120px;" %)**Function code**|=(% style="text-align: center; vertical-align: middle; width: 163px;" %)**Name**|=(% style="text-align: center; vertical-align: middle; width: 122px;" %)((( 373 +**Setting method** 374 +)))|=(% style="text-align: center; vertical-align: middle; width: 128px;" %)((( 375 +**Effective time** 376 +)))|=(% style="text-align: center; vertical-align: middle; width: 103px;" %)**Default value**|=(% style="text-align: center; vertical-align: middle; width: 107px;" %)**Range**|=(% style="text-align: center; vertical-align: middle; width: 321px;" %)**Definition**|=(% style="text-align: center; vertical-align: middle;" %)**Unit** 377 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-20|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control function|(% style="text-align:center; vertical-align:middle; width:122px" %)((( 378 +Shutdown setting 379 +)))|(% style="text-align:center; vertical-align:middle; width:128px" %)((( 380 +Effective immediately 381 +)))|(% style="text-align:center; vertical-align:middle; width:103px" %)0|(% style="text-align:center; vertical-align:middle; width:107px" %)0 to 1|When the function code is set to 1, enable the model tracking control function.| 382 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-21|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control gain|(% style="text-align:center; vertical-align:middle; width:122px" %)((( 383 +Shutdown setting 370 370 )))|((( 371 -**Effective** 385 +Effective immediately 386 +)))|(% style="text-align:center; vertical-align:middle; width:103px" %)1000|(% style="text-align:center; vertical-align:middle; width:107px" %)200 to 20000|(% rowspan="2" %)(% style="width:321px" %)Increasing the model tracking control gain can improve the position response performance of the model loop. If the gain is too high, it may cause overshoot behavior. The gain compensation affects the damping ratio of the model loop, and the damping ratio becomes larger as the gain compensation becomes larger.|(% style="text-align:center; vertical-align:middle" %)0.1/s 372 372 373 -**time** 374 -)))|**Default**|**Range**|**Definition**|**Unit** 375 -|P2-20|Model tracking control function|Shutdown setting|((( 376 -Effective 388 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-22|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control gain compensation|Shutdown setting|((( 389 +Effective immediately 390 +)))|1000|(% style="text-align:center; vertical-align:middle; width:107px" %)500 to 2000|(% style="text-align:center; vertical-align:middle" %)0.10% 377 377 378 -immediately 379 -)))|0|0 to 1|When the function code is set to 1, enable the model tracking control function.| 380 -|P2-21|Model tracking control gain|Shutdown setting|((( 381 -Effective 382 - 383 -immediately 384 -)))|1000|200 to 20000|(% rowspan="2" %)Increasing the model tracking control gain can improve the position response performance of the model loop. If the gain is too high, it may cause overshoot behavior. The gain compensation affects the damping ratio of the model loop, and the damping ratio becomes larger as the gain compensation becomes larger.|0.1/s 385 -|P2-22|Model tracking control gain compensation|Shutdown setting|((( 386 -Effective 387 - 388 -immediately 389 -)))|1000|500 to 2000|0.10% 390 - 391 -|**Function code**|**Name**|((( 392 -**Setting** 393 - 394 -**method** 392 +(% class="table-bordered" %) 393 +|=(% scope="row" style="text-align: center; vertical-align: middle; width: 120px;" %)**Function code**|=(% style="text-align: center; vertical-align: middle; width: 163px;" %)**Name**|=(% style="text-align: center; vertical-align: middle; width: 122px;" %)((( 394 +**Setting method** 395 +)))|=(% style="text-align: center; vertical-align: middle; width: 128px;" %)((( 396 +**Effective time** 397 +)))|=(% style="text-align: center; vertical-align: middle; width: 103px;" %)**Default value**|=(% style="text-align: center; vertical-align: middle; width: 107px;" %)**Range**|=(% style="text-align: center; vertical-align: middle; width: 321px;" %)**Definition**|=(% style="text-align: center; vertical-align: middle;" %)**Unit** 398 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-23|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control forward rotation bias|((( 399 +Operation setting 395 395 )))|((( 396 -**Effective** 397 - 398 -**time** 399 -)))|**Default**|**Range**|**Definition**|**Unit** 400 -|P2-23|Model tracking control forward rotation bias|((( 401 -Operation 402 - 403 -setting 401 +Effective immediately 402 +)))|(% style="text-align:center; vertical-align:middle; width:103px" %)1000|(% style="text-align:center; vertical-align:middle; width:107px" %)0 to 10000|(% rowspan="2" %)(% style="width:321px" %)Torque feedforward size in the positive and reverse direction under model tracking control|(% style="text-align:center; vertical-align:middle" %)0.10% 403 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-24|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control reverses rotation bias|((( 404 +Operation setting 404 404 )))|((( 405 -Effective 406 +Effective immediately 407 +)))|1000|(% style="text-align:center; vertical-align:middle; width:107px" %)0 to 10000|0.10% 408 +|=(% style="text-align: center; vertical-align: middle; width: 120px;" %)P2-25|(% style="text-align:center; vertical-align:middle; width:163px" %)Model tracking control speed feedforward compensation|Operation setting|((( 409 +Effective immediately 410 +)))|(% style="text-align:center; vertical-align:middle; width:103px" %)1000|(% style="text-align:center; vertical-align:middle; width:107px" %)0 to 10000|(% style="width:321px" %)The size of the speed feedforward under model tracking control|(% style="text-align:center; vertical-align:middle" %)0.10% 406 406 407 -immediately 408 -)))|1000|0 to 10000|(% rowspan="2" %)Torque feedforward size in the positive and reverse direction under model tracking control|0.10% 409 -|P2-24|Model tracking control reverses rotation bias|((( 410 -Operation 411 - 412 -setting 413 -)))|((( 414 -Effective 415 - 416 -immediately 417 -)))|1000|0 to 10000|0.10% 418 -|P2-25|Model tracking control speed feedforward compensation|Operation setting|((( 419 -Effective 420 - 421 -immediately 422 -)))|1000|0 to 10000|The size of the speed feedforward under model tracking control|0.10% 423 - 424 424 Please refer to the following for an example of the procedure of adjusting servo gain. 425 425 426 -|**Step**|**Content** 414 +|**Step**|** Content** 427 427 |1|Please try to set the correct load inertia ratio parameter P3-1. 428 428 |2|If the automatic adjustment mode is used (P3-3 is set to 0), please set the basic rigidity level parameter P3-2. If in manual adjustment mode (P3-3 is set to 1), please set the gain P2-1~~P2-3 related to the position loop and speed loop and the torque filter time constant P4-4. The setting principle is mainly no vibration and overshoot. 429 429 |3|Turn on the model tracking function, set P2-20 to 1. 430 -|4|Increase the model tracking gain P2-21 within the range of no overshoot and vibration occur. 418 +|4|Increase the model tracking gain P2-21 within the range of no overshoot and vibration occurring. 431 431 |5|If the rigidity level of step 2 is set relatively low, user can properly increase the rigidity level P3-2. 432 432 |6|When overshoot occurs, or the responses of forward rotation and reverse rotation are different, user can fine-tune through model tracking control forward bias P2-23, model tracking control reverse bias P2-24, model tracking control speed feedforward compensation P2 -25. 433 433 ... ... @@ -788,9 +788,6 @@ 788 788 If P02-04≤P02-01, then P02-16 is invalid, and the second gain is switched from the first gain immediately. 789 789 ))) 790 790 791 - 792 - 793 - 794 794 795 795 796 796 == **Model Tracking Control Function** == ... ... @@ -1239,8 +1239,6 @@ 1239 1239 If P02-04≤P02-01, then P02-16 is invalid, and the second gain is switched from the first gain immediately. 1240 1240 ))) 1241 1241 1242 - 1243 - 1244 1244 1245 1245 1246 1246 = **Mechanical resonance suppression** =