I don't know how to explain my anxiety and happiness when u post such awesome videos, please guys keep it up, love you, i want you to open a branch in Zimbabwe please, i will be the ambassador of RealPars in Zimbabwe 💞💞💞💞💞💞
@realpars
2 жыл бұрын
Thanks a lot for your kind comment and support, Amos! We're happy to hear that.
@eugenepohjola258
Жыл бұрын
Howdy. Credits to RealPars for taking the time and effort to make these educational videos. As a curiosity. The European understanding of positive control is that the control output follows the set value. Increasing set point increases control output. Default in Siemens controllers. The American way of positive control is that the control output follows the process value. An increase in process value increases the contol output. Default in Omron controllers. Positive European: "Controlling of heating." Positive American: "Controlling of cooling." Regards.
@realpars
Жыл бұрын
Thanks for your support, Eugene! We appreciate that
@eugenepohjola258
Жыл бұрын
@@realpars Howdy. Sirs, Ma'ams. You are most kind to say so. Yeah. Back in my career days I remember almost gone nuts not getting the flippin' Omron to control. I only got it to bang-bang from rail to rail. So eventually I checked the manual and switched the direction. Voila'. Began to work like magic. Regards.
@Diski76
2 жыл бұрын
As always the land talks RealPars👌👌
@aircates
Жыл бұрын
I really appreciate these videos. I am a Master Toyota technician and what I find interesting is how much the automotive industry industry is incorporating some of these technologies into their systems. A case in point, is our direct injection engines which now use a brushless 3 phase fuel pump and fuel pressure transducers to monitor pressure. It is really not much of a stretch to understand the mechanics of PLC operation.
@realpars
Жыл бұрын
Hi @aircates. Thanks for your comment. As you know, a car is loaded with computers. ECM's, ECU's....etc...etc..... And of course loaded with active sensors that detect everything from flow to pressure to temperature.....and much more!
@aircates
Жыл бұрын
@@realpars absolutely correct!! I’m seriously considering changing professions from automotive to industrial troubleshooting. This is much more interesting to me and the way the systems interact is not unlike many automotive systems. In fact, some of the illustrations you use to explain some systems are automotive.
@anatolyterpugov4627
2 жыл бұрын
I understand correctly that at 4:39 the setpoint should change to 10, and not to 20, how is it with you?
@realpars
2 жыл бұрын
Hi @Anatoly Terpugov. You are correct. The value in the controller setting SP window should show 10 and not 20. The graph correctly shows that the SP is 10. Thanks for pointing that out!
@bitebonumbere1426
2 жыл бұрын
@ 6:23: "In our next video..." Please don't fail to release this next video very soon. Thanks RealPars. 😊
@realpars
2 жыл бұрын
Thanks for your support, Bitebo!
@mustaphaaitsidimou9177
Жыл бұрын
Really i appreciate these videos. Thank you very much
@mustaphaaitsidimou9177
Жыл бұрын
In a control loop I found it already setting the P,I &D . But the measurement always exceeds the setpoint at 14% and then it returns stable. in this case it is necessary to act on P,I or D. Thank you for your response 😊
@realpars
Жыл бұрын
You're very welcome!
@hectorenriquesantandermeza5208
2 жыл бұрын
Very Well Explained Real Pars! It will be awesome if in the future you can make a video related to Adaptive Control for Non-Linear Systems.
@realpars
2 жыл бұрын
Hi Hector, Thanks for your topic suggestion! I will pass it on to our course developers. Happy learning!
@asadiqbal87
2 жыл бұрын
thanks real pars another great video
@realpars
2 жыл бұрын
Glad you enjoyed it!
@benhurley280
2 жыл бұрын
Awesome 😎
@realpars
2 жыл бұрын
Thank you!
@maryambayani568
2 жыл бұрын
Well explained!
@realpars
2 жыл бұрын
Thank you, Maryam
@vazgen6672
10 ай бұрын
Still great video as always
@montesdeocaf.2797
Жыл бұрын
Very good!!!
@realpars
Жыл бұрын
Thank you!
@aminokamad1681
2 жыл бұрын
Awesome 🔥🔥🔥
@realpars
2 жыл бұрын
Thank you, Amino!
@s001b
2 жыл бұрын
Thank you
@realpars
2 жыл бұрын
You're welcome!
@shrikantsharma2321
2 жыл бұрын
Please make video on siemens vfd starter software . Your videos are very helpful. Love from India.
@realpars
2 жыл бұрын
Hi Shrikant, Thanks for your comment! We have quite some video courses on VFD, feel free to check those out over here kzitem.info?search_query=+siemens+vfd+realpars Happy learning!
@jbpilon02
2 жыл бұрын
Hello, thank you for this video. I don't understand the formula CO=CO+(gain x error) because, after each scan, CO would augment to reach 100%. In a E5AR Omron controller, there is a parameter called manual reset which is a fixed value added to (gain x error). Then, the formula would be CO = (manual reset value)+(gain x error). So, even if the CO change depending on the error, the manual reset velue will always be at 50%. Am i correct ?
@realpars
2 жыл бұрын
Hi @jbpilon2. Thanks very much for your question. I’m not sure what you mean by “each scan” as an analog control loop is continuous. In any control loop, it is desirable that the controller output (CO) never reaches 100%, or 0% as the final actuator is at maximum or minimum. If that happens, the controller has no further effect on the PV. In a perfect world, let’s assume the CO is at 50% for a PV of 50%. We want to ensure that the Gain is not high enough to drive the CO to 100% or 0%. I’m not familiar with the E5AR Omron controller but I assume it is a temperature controller. I’d be interested in hearing more about the “manual reset value” that you describe. In most PID controllers, the term “reset” is another name for “Integral” or the “I” in PID. I’m looking forward to your response.
@jbpilon02
2 жыл бұрын
@@realpars Hello, interesting conversation. In math calculation, if i programmed the formula CO=CO+(gain x error), at each scan of the computer, CO will augment. I think we retreive a parameter like "manual reset value" in many controllers. It is a fixed value and it is used to manually remove the error when the process has reached his stability. When error=0, the output will continu to be activated with the manual reset value. In some controller, we also retreive the parameter "automatic reset" which is another name for the integral. So the formula could be CO=MRV + (gain x error). MRV = Manual reset value. Thank you again for the video. I wil use it in my courses. JB
@kimaipet
2 жыл бұрын
@@jbpilon02correct formula is CO = gain * error
@jbpilon02
2 жыл бұрын
@@kimaipet Hello, What's happen when the error=0 ? No command ? Even if the error=0, we need a command to maintain the temperature=set point. In a Proportionnal control loop, the manual reset value will do it. CO=MRV+(gain x error). So if error=0, CO=MRV.
@kimaipet
2 жыл бұрын
@@jbpilon02This is the main disadvantage of P controller. It always has offset error.
@mrtechie6810
Жыл бұрын
I want to add PID temperature control to my 240VAC instant hot water heater. What controller and sensor would you recommend? Is there such a thing as proportional heater control? A heater controller that factors in flow rate?
@realpars
Жыл бұрын
Hi Mr Techie. Thanks for reaching out. I'm curious about why you want PID control for your hot water on-demand heater. I'm gonna go out on a limb here and suggest that an add-on PID control is not practical or easily accomplished. I don't know what vendor made your heater, but I assume it has a built-in controller already. Can you provide any additional info please?
@mrtechie6810
Жыл бұрын
@@realpars It has manual switches for two heating elements: low, high (or both). Further adjustment is by manually adjusting the water flow rate. No electronic nor mechanical thermostatic control (except for a thermal safety cutoff in case of overheating). Atmor brand, model Super 900
@isakoqv
2 жыл бұрын
Great way to gain some intuition! Maybe do a crash course on model predictive control when you're done with PID?
@realpars
2 жыл бұрын
Thanks for the topic suggestion! Great one, I will happily pass it on to our course developers. Happy learning and thanks for sharing!
@Korystuwatch42
Жыл бұрын
4:32 Are you sure there is no calculation mistake? Because if the SP is 20, and the PV is 0, we get an error of 20. Multiply it by the Gain of 2, and we get 40%. 50%+40% = 90?
@realpars
Жыл бұрын
Hi there. You have a good eye. Thanks for reaching out. There is an error in the graphic. Please refer to 4:46. The SP window shows an SP of 20. The SP window should indicate 10, not 20. The video narrative states a SP change of 10. The Error value in the calculation is 10. If the SP was changed by 20, we would get an error of 20. And, if we multiplied by 20, we would indeed get an increase in output of 40%.
@mutugimaina7841
2 жыл бұрын
How does simple water purifier machine operate. Explain each parts function .
@realpars
2 жыл бұрын
Thanks for your feedback and suggestions, Kennedy! I will happily pass this on to our course developers for possible future video courses. Happy learning!
@prasadadavi6618
2 жыл бұрын
Hi, can you please help me understand the root cause of offset?
@realpars
2 жыл бұрын
Hi @Prasad Adavi. That's a tough question to answer quickly. In a nutshell, the controller's proportional action acts on the error signal and does its best to bring the PV back to SP. Unfortunately, after its' initial action, the PV does not reach the SP and no further action will occur. That's why Integral action is introduced. Integral action will continue to move the controller output until the PV does equal the SP and offset is eliminated.
@mohammadibrahim-om9qe
2 жыл бұрын
Ia have a question please. I deal with PID level actuator, I put the set point (it's level controller). The problem is when tge the PV varies, the actuator goes to it's maximum output (fully closed or fully open) 0% to 100%. this leads to a big oscillating in flow rate, even when using a small gain, what can I do to get semi stable level and flow rate?
@realpars
2 жыл бұрын
Hi mohammed ibrahim. Thanks for contacting us. I can’t answer straight away as I don’t understand your loop quite yet. I’m not sure what your PV is. Are you measuring level or flow? Are you controlling level or flow? Is the flow rate you refer to a measure of the flow going through a pipe and into a tank where the level is being controlled? Is the flowrate a measure MV of a flow transmitter? I’ll keep an eye out for your replies.
@hamdaniyusuf_dani
Жыл бұрын
I had some similar problems many years ago. It turned out that the cause is in control valve positioner's settings and pneumatic connections to the actuator. Can you control the opening of the control valve manually? Try to send 4 mA (0%) to the positioner, then increase it bit by bit, to 25%, 50%, 75% and 100%.
@mutiuadegboye3827
2 жыл бұрын
Can you please tell me the software/tool you used to design your figure (figure at 1:50)?
@realpars
2 жыл бұрын
Hi Mutiu! Thanks for your comment! I am actually not sure about that as all our designs are created by our Graphic and Animation department.
@clsullad
2 жыл бұрын
Please make videos on omron plcs , Thank you
@realpars
2 жыл бұрын
Thanks for your topic suggestion, Chinnaraj! I will pass it on to our course developers. Happy learning!
@clsullad
2 жыл бұрын
@@realpars Thank you so much for your consideration , looking forward for Omron plc topics
@alexcaceres3060
2 жыл бұрын
💓
@mike-EE
2 жыл бұрын
cant wait for the integral. the most difficult part
@AlexandreSantos-gg9il
2 жыл бұрын
Could you do a video on safety relay? from Brazil, thanks
@realpars
2 жыл бұрын
Thanks for the topic suggestion, Alexandre! Will happily pass it on to our course developers. Happy learning!
@laithjawad9208
2 жыл бұрын
This is FT200 flow transmitter not DP . Thanks
@realpars
2 жыл бұрын
Hi @laith jawad. Hey....thanks for your feedback! You are correct. FT200 is indeed a flow transmitter. At the same time, it is a differential pressure (DP) flow transmitter. The high and low ports of this DP flow transmitter are located on either side of an orifice plate.
@enginerepairguy
2 жыл бұрын
It sad as a student that you charge yearly for your pro subscribtion. Its amazing value but a bit steep as an student for a whole year 😔
@realpars
2 жыл бұрын
Thanks for your comment! We understand this price is not always doable for everyone. We do also offer a monthly subscription plan, which is €19,99 per month, but can be cancelled on a monthly basis. Luckily, we provide new video courses each week for free on our KZitem channel. Hopefully, you are able to join our course library soon!
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