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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 23.1
edited by Theodore Xu
on 2024/04/09 17:26
Change comment: There is no comment for this version
To version 17.1
edited by Mora Zhou
on 2023/11/20 14:49
Change comment: There is no comment for this version

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Author
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1 -XWiki.AiXia
1 +XWiki.Mora
Content
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353 353  
354 354  F7.05
355 355  
356 -= **Constant pressure water supply** =
357 -
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 -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
361 -A4.00=1
362 -A4.01=Set pressure
363 -A4.03=Sensor range
364 -A4.04=0
365 -
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
368 -F0.03=8
369 -F5.23=2
370 -F9.01=Upper limit water pressure
371 -F9.02=1 (AI2)
372 -F9.28=1
373 -F9.29=Target value
374 -F9.31=Lower limit water pressure
375 -
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. 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 -
379 379  = **PID function** =
380 380  
381 381  (% style="text-align:center" %)