Great ,,,Your way of Explaining & Teaching is really easy and simple ,,,, you should make more vides on industrial automation applications like rotary registration and flower packing machines ,,, It will be help full new comer engineers in Automation industry
I always remember my visits in the "Deutsches Museum" in Munich. They have lots of interactive demos and I loved playing with them when I was young boy (and still do as an adult).
HomoFaciens мне так много дал в знаниях, что я могу только аплодировать. Проверять серводвигатель от Сименса диском из мусора -- это как проверять матрицу монитора Самсунг камерой, собранной в подвале из обломков мобильных телефонов. Но такой путь HomoFaciens. То, что по-русски называется на пальцах.
It always a pleasure viewing your videos. It is amazing what commericial level drives can do these days especially when coupled with high resolution encoders. I bet you won't find an arduino board in the siemens drive.
Thanks for the video- very interesting. Here is a question that you may be able to answer: In a small industrial machine that uses a professional servo unit similar to the one by Siemens that you have featured, is there any need for a separate shaft brake to imitate holding torque ( similar to the way a stepper motor will hold its position when not rotating) or is there enough strength in the servo hunting for its zero position to maintain a position under a load that might push the machine away from its intended position? It would be interesting to see what you think given your experience with home made servo set ups.
As long as a servo motor system is powered, It will always return to the setpoint when deflected. Whether or not that is enough for application depends on what exactly you have in mind. The motor I am using in this video has an additional mechanical break being actuated through an electromagnet. If that electromagnet is enabled, the motor can spin freely, when disabled, the shaft is locked.
I wish I could see the sinematic drive's dc servo pwm on an oscilloscope when you tell it to pulse 1 step. How would it ramp up and down the hbridge current without having any intermediate encoder steps by which to gauge speed? Will it always just default to a specific pwm (or current)?
Of course it can't ramp up/down when the encoder resolution doesn't allow for that. You won't get a hard lock of the motor at any of the encoder positions theoretically offered. The extremely high number of pulses per revolution makes constant speed or constant torque rotation smoother. That's where it makes a difference.
Thank you for your channel.I have a question, as you know A CD-Rom uses little pits that are engraved onto the CD with a laser. These are then read with a laser. Using this info en.wikipedia.org/wiki/File:Comparison_CD_DVD_HDDVD_BD.svg, and the fact that a CD has a roughly 116mm outer-data radius, there are roughly 400,000 spots on the outer edge of the CD. That means you can break the circle up into 400,000 chunks. You can do twice as much with a DVD, and 8 times as much with a Blu-ray. That is some serious precision, and they are cheap.can we use CD and A CD-Rom equipment to make high resolution encoders?
You will hardly find a cheap motor that runs smoothly enough to get that high resolution. The combination of static and kinetic friction acting on the motor shaft and all mechanics connected to that shaft will prevent your system from stopping at 400,000 different positions. Maybe you can get close to something like that with a special, precisely manufactured motor and nothing connected to the motor shaft.
@@HomoFaciens Thank you for replay. maybe we can solvent this problem in code, for example dividing and round value of positions steps to steps that motor can handle.
Yes, you can reduce the number of positions by software. Keep in mind that you also need a microcontoller that can handle that huge number of pulses per second if you go to higher revolution speeds with your motor.
Great ,,,Your way of Explaining & Teaching is really easy and simple ,,,, you should make more vides on industrial automation applications like rotary registration and flower packing machines ,,, It will be help full new comer engineers in Automation industry
Your home made projects make me appreciate the industrial devices more. Great video. Also I like the Siemens automation a lot. Chapeau to Siemens.
...I'll try to close that gap with my future homemade servo drives - stay tuned!
@@HomoFaciens
I appreciate your effort. I'm not religious, but I don't know how to say it another way: you are doing God's work. :-)
Demo console is an amazing idea! Nothing like direct experience to learn.
I always remember my visits in the "Deutsches Museum" in Munich. They have lots of interactive demos and I loved playing with them when I was young boy (and still do as an adult).
Thank you very much Mr. Norbert.
We are so miss you..
...try to be back, soon!
HomoFaciens мне так много дал в знаниях, что я могу только аплодировать.
Проверять серводвигатель от Сименса диском из мусора -- это как проверять матрицу монитора Самсунг камерой, собранной в подвале из обломков мобильных телефонов.
Но такой путь HomoFaciens.
То, что по-русски называется на пальцах.
It always a pleasure viewing your videos. It is amazing what commericial level drives can do these days especially when coupled with high resolution encoders. I bet you won't find an arduino board in the siemens drive.
Вы лучший,проекты шикарные....с приветом из России
Thanks! Regards from the center of Germany.
Будет модернизация вашего станка с чпу на базе промышленного контроллера?
Well, that would definitely blow my budget. I will talk to Siemens if eventually they would like to start a project like that.
Nice job, keep it up!
Thanks for the video- very interesting. Here is a question that you may be able to answer: In a small industrial machine that uses a professional servo unit similar to the one by Siemens that you have featured, is there any need for a separate shaft brake to imitate holding torque ( similar to the way a stepper motor will hold its position when not rotating) or is there enough strength in the servo hunting for its zero position to maintain a position under a load that might push the machine away from its intended position? It would be interesting to see what you think given your experience with home made servo set ups.
As long as a servo motor system is powered, It will always return to the setpoint when deflected. Whether or not that is enough for application depends on what exactly you have in mind.
The motor I am using in this video has an additional mechanical break being actuated through an electromagnet. If that electromagnet is enabled, the motor can spin freely, when disabled, the shaft is locked.
I wish I could see the sinematic drive's dc servo pwm on an oscilloscope when you tell it to pulse 1 step.
How would it ramp up and down the hbridge current without having any intermediate encoder steps by which to gauge speed?
Will it always just default to a specific pwm (or current)?
Of course it can't ramp up/down when the encoder resolution doesn't allow for that. You won't get a hard lock of the motor at any of the encoder positions theoretically offered. The extremely high number of pulses per revolution makes constant speed or constant torque rotation smoother. That's where it makes a difference.
здраствуйте можно ли код и схему колекторника с энкодером ?
Thank you for your channel.I have a question, as you know A CD-Rom uses little pits that are engraved onto the CD with a laser. These are then read with a laser. Using this info en.wikipedia.org/wiki/File:Comparison_CD_DVD_HDDVD_BD.svg, and the fact that a CD has a roughly 116mm outer-data radius, there are roughly 400,000 spots on the outer edge of the CD. That means you can break the circle up into 400,000 chunks. You can do twice as much with a DVD, and 8 times as much with a Blu-ray. That is some serious precision, and they are cheap.can we use CD and A CD-Rom equipment to make high resolution encoders?
You will hardly find a cheap motor that runs smoothly enough to get that high resolution. The combination of static and kinetic friction acting on the motor shaft and all mechanics connected to that shaft will prevent your system from stopping at 400,000 different positions. Maybe you can get close to something like that with a special, precisely manufactured motor and nothing connected to the motor shaft.
@@HomoFaciens Thank you for replay. maybe we can solvent this problem in code, for example dividing and round value of positions steps to steps that motor can handle.
Yes, you can reduce the number of positions by software. Keep in mind that you also need a microcontoller that can handle that huge number of pulses per second if you go to higher revolution speeds with your motor.