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Changes for page 4 Common function of VB

Last modified by Theodore Xu on 2025/02/27 09:58
From version 20.1
edited by Theodore Xu
on 2024/04/09 17:14
Change comment: There is no comment for this version
To version 34.1
edited by Theodore Xu
on 2024/04/23 19:51
Change comment: There is no comment for this version

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... ... @@ -357,24 +357,24 @@
357 357  
358 358  The following example uses a current sensor to simulate a water pressure test, the sensor specification is 4-20mA current signal, the range is 16 bar. use the sensor to connect to the AI2 terminal port of the VB.
359 359  Firstly please check the software version of **F7.11**, **F7.11 **is software version, if the **F7.11 **is greater than 2.064, please use A4 parameter group, A4 parameter group is special parameter for constant pressure water supply project.
360 -F0.20=1 factory data reset
360 +F0.20=1 Factory data reset
361 361  A4.00=1
362 -A4.01=set pressure
362 +A4.01=Set pressure
363 363  A4.03=Sensor range
364 364  A4.04=0
365 365  
366 366  If the value of F7.11 is less than or equal to 2.064, use PID parameter group F9.
367 -F0.20=1 factory data reset
367 +F0.20=1 Factory data reset
368 368  F0.03=8
369 369  F5.23=2
370 370  F9.01=Upper limit water pressure
371 371  F9.02=1 (AI2)
372 372  F9.28=1
373 -F9.29=Set pressure
373 +F9.29=Target value
374 374  F9.31=Lower limit water pressure
375 375  
376 376  
377 -In the parameter setting of group F9, 20mA is the maximum value of the transducer with a range of 16bar, and F9.01/F9.29/F9.31 are the setting parameters for the water pressure in the VB in percentage. For example when the inverter is required to keep the pressure at 8bar, modify F9.29=50%. F9.01 is the upper limit of water pressure setting, it is recommended to set F9.29=F9.01,of course you can set F9.01=80%,it needs to be greater than or equal to F9.29.
377 +In the parameter setting of group F9, 20mA is the maximum value of the transducer with a range of 16bar, and F9.01/F9.29/F9.31 are the setting parameters for the water pressure in the VB in percentage. For example when the inverter is required to keep the pressure at 8bar, modify F9.29=50%. F9.01 is the upper limit of water pressure setting, it is recommended to set F9.29=F9.01,of course you can set F9.01=80%,it needs to be greater than or equal to F9.29. If when the control effect of the inverter is slow or the descent time is too long, try reducing the integration time: F9.06 = 0.5 or 1.0.
378 378  
379 379  = **PID function** =
380 380  
... ... @@ -417,10 +417,6 @@
417 417  
418 418  Control operation command address: 2000H (premise F0.01=2)
419 419  
420 -= **Safety and precautions** =
421 -
422 -~1. Familiar with product standard technical specifications. Please refer to the manual
423 -
424 424  = **Grounding** =
425 425  
426 426  ~1. Understand the meaning and function of the ground wire and connect it correctly.
... ... @@ -446,20 +446,91 @@
446 446  
447 447  Braking resistor
448 448  
449 -= **Power and current value** =
445 += **EMC** =
450 450  
451 - ~1. Familiar with the rated current of the inverter in different power ranges, please refer to the manual
447 + The input terminal of the inverter has EMC screw access option.
452 452  
453 -= **Braking resistor** =
449 +* EMC Screws Installation Role: Filter out the common mode interference signals on the input side to the ground.
450 +* Role of removing EMC screws: When the grounding of the whole equipment system is unstable, it is easy for the interference signal to enter the input terminal of the VFD, which leads to the inaccurate operation of the terminal motor, and then it is necessary to remove the EMC screws on the machine in order to solve the influence of external interference.
454 454  
455 - ~1. Familiar with the selection of braking resistor. Under what conditions do you need to install a braking resistor? How to install the braking resistor?
452 +(% class="box infomessage" %)
453 +(((
454 +Do not remove the EMC unless there are special circumstances.
455 +)))
456 456  
457 -Braking resistors are installed on the and PB ends of the inverter (built-in braking unit)
457 +(% style="text-align:center" %)
458 +[[image:企业微信截图_16890580824807.png||height="394" width="284"]]
458 458  
459 -= **Fault code and troubleshooting** =
460 +
460 460  
461 - ~1. Familiar with various fault codes and countermeasures to deal with faults.
462 += Torque mode control on winding project =
462 462  
463 -= **Installation guidance required by EMC** =
464 +Torque mode can only be vector control, torque control refers to the strength, that in the torque mode F0.03 is the default value, modify F0.03 for other values is invalid.
464 464  
465 - The input terminal of the inverter has EMC screw access option.
466 +Debugging ideas:
467 +
468 +~1. According to the application requirements of the torque command and the upper limit of the frequency.
469 +
470 +2. Set the frequency acceleration/deceleration time F0.18/F0.19 and the torque acceleration/deceleration time F3.14/F3.15, the torque acceleration/deceleration time is less than or equal to the frequency acceleration/deceleration time.
471 +
472 +3. Start the motor and observe whether the motor can run or not, if it can't run normally, rotate the motor with external force, if it can be started, it is judged to be necessary to increase the static friction coefficient compensation.
473 +
474 +4. After the motor is running, observe the motor running state, if the motor is blocked, check whether it is shaking when it is blocked, if it is shaking, increase F3.07, generally 0.01 amplitude increment.
475 +
476 +5. When the torque command F3.10 is lower than the percentage of "no-load current / rated current", the running frequency is about: rated frequency * torque command percentage * rated current / no-load current.
477 +
478 +6. Static Friction Compensation Logic: During startup, the torque command 1 = F3.11* F3.24 /100 is passed to the performance; after a maintenance time of F3.25 seconds, it reverts to torque command 2 = F3.11; the switching of torque commands 1 /2 occurs through the torque acceleration and deceleration times F3.14 / F3.15;
479 +
480 +7. Auxiliary debugging parameters: filter coefficient F3.07 and static friction compensation F3.24/ F3.25.
481 +
482 +F0.00=0 Vector control
483 +
484 +F0.18=2.0 Acceleration time
485 +
486 +F0.19=2.0 Deceleration time
487 +
488 +F2.01=Motor rated power
489 +
490 +F2.02=Motor rated voltage
491 +
492 +F2.03=Rated motor current
493 +
494 +F2.04=Rated motor frequency
495 +
496 +F2.05=Rated motor speed
497 +
498 +F2.11=1 Static tuning
499 +
500 +F3.01=0.2 Speed loop integration time
501 +
502 +F3.07=0.005 Speed loop filter coefficient
503 +
504 +F3.09=1 Torque control
505 +
506 +F3.10=1 Torque control upper limit source
507 +
508 +F3.11=200 Torque upper limit setting
509 +
510 +F3.12=50 Torque control maximum frequency
511 +
512 +F3.14=1.2 Torque control acceleration time
513 +
514 +F3.15=1.2 Torque control deceleration time
515 +
516 +F3.16=120 Torque stiffness factor
517 +
518 +Torque control commissioning instructions:
519 +
520 +F0.18: Frequency acceleration time
521 +
522 +F0.19: Frequency deceleration time
523 +
524 +F3.14: Torque acceleration time
525 +
526 +F3.15: Torque deceleration time
527 +
528 +F3.07: Frequency low-pass filtering factor
529 +
530 +F3.24: Static friction compensation
531 +
532 +F3.25: Static friction compensation time
企业微信截图_16890580824807.png
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