Use a motion board for a servo valve

Hi!
I'm developing an application to control an hydraulic servovalve with feedback.
I already have a motion board and I'd like to know if and how is possible to use the PCI-73xx servo board to control a servovalve 'cause it don't work in speed but with trajectory so i will not give a speed reference but a position curve.

Just think of the motion controller as a PID controller. As long as it can provide the proper control signal and read the proper feedback signal, it is really just a matter of tuning. Not sure if you are controlling the position of the servovalve itself or controlling the position of an actuator.

Similar Messages

CS6 flash exports use 1 motion transition for all instances?

I'm using Encore CS6 OSX10.8.4. I have 1 main menu, 1 sub menu, 2 simple motion transitions. One to the sub menu and one back to main. Both only 1 second long created in AE 5.5 rendered as .mov files.
Everything looks good in the preview option. Exported to DVD and everything works fine. Export to flash and it plays only one motion transition in both cases.
I tried replacing the referenced motion video that was not recognized another and the same results. Happens in both FLV and F4V exports.
Any ideas on how to correct this? There are no special characters in my project file asset names. Tried it in chrome and firefox. Redid a new Encore file and same outcome.
I wan to use flash export to keep higher resolution than SD so I can take a screen video of navigating through the menus and use that high res video as part of a portfolio for a potentical job.
Any Help is much appreciated

There are some limitations to flash export, but I don't recall this coming up. No time to test at the moment.

I want to use the Function Generator VI to send command signals through the NI 7344 motion controller. This will be a closed loop servo valve system. I want to be able to change from say a square wave to a sine wave on the fly. Idea's?

I am going to run tests that require an actuator to move using various types of arbitrary waveforms such as sine or square. The NI 7344 is hooked to the UMI that is going through a driver for a servo valve. The loop is analog and it is closed. I have played with some of the examples but can't get it to work. I have used the function generator VI to generate a signal but I think I am using the wrong input VI to the motion control board. When I use what I have it moves the servo and then stops. It doesn't continually generate the signal.
I would love to use the controls on the function generator vi to control frequency and amplitude ect. Any help or pointer would be helpful. Thank you in advance.

Hello,
I'm not clear on exactly how you want to use the generated data but I'm assuming they will be used as your target points.
There's a built-in example for motion called 'One-Axis Contour Move.vi'. This example demonstrates how to provide your target points as 1-D array. All you need to do is to replace the input array with the output of the function generator. In order to have it run continuously, use a while loop. You can further program your application so that it'll change the waveform on the fly by monitoring the user interface but this might be little little tricky as you will need to reset the move and load the new generated points while keeping track of your current position.
I hope this helps. Let me know if you have further questions regarding this
application.
Best regards,
Yusuf C.
Applications Engineering
National Instruments

PID servo valve wiring and control

I'm trying to control a pneumatic servo valve with a PID vi but I'm confused about the wiring of the servo valve. The servo valve has two wires, valve command and valve feedback. What do I do with the valve feedback? I'm wiring the analog out from my vi with the PID controller through the A/D board to the servo valve command wire. It seems to me that there should be two closed feedback loops. One using the LVDT signal as feedback and the other using the valve feedback signal as the feedback. Any insights or example vi's would be greatly appreciated.
Thank you,
Todd Baldini
[email protected]

Please make sure that your servo valve is meant to take control signals. Often times, an amplifier is used between the control valve and the main controller. The way it stands now, you would need 2 control loops. One to control valve position, the other to generate the control signal(%valve open).

How Can I configure the 6024E board for reading the voltage from a source?

Hi, I have a little problem, I want to use the 6024E board for reading voltage from a source and then display this on the monitor, and also I want to change the voltage from the output using the computer. I read the manual but I don't understand how to connect and configure the board. It is to proof that the board receive and send information.
Thanks, sorry for my english, I'm from Mexico, if you don't understand something about my explanation tell me.

Thank you, now I'm trying to do my project and I have another question, there are differents ways to connect the source and I choose the NRSE configuration because I'm going to use a grounded signal source... well in the manual says "The signal is then connected to the positive input of the PGIA, and the signal local ground reference is conenected to the negative input ot the PGIA. The ground point of the signal should, therefore, be connected to the AISENSE pin." I don't understand this because I only have two wires and here is talking about three connections, please help me, how do I connect the source to the board? I have the positive wire and the negative wire.... maybe is because I don't have a perfect english and I don't understand the sentence...

How to use NI motion library to interact with the hardware in C#?

i want to interact with a motor connected to my system using ni motion board and ni motion library. Can anyone suggest how to configure velocity and acceleration settings so that the motor can be rotated ?
Thanks in advance
Ritesh

Ritesh,
you should start by configuring and testing the motion control setup in MAX. In C# you can use the NI-Motion C API. Please refer to the documentation (NI-Motion C Reference help) and the shipping examples (C:\Program Files\National Instruments\NI-Motion\Documentation\Examples\NI-Motion Help\C).
Kind regards,
Jochen Klier
National Instruments

Using Light as Motion Path for Trapcode Particular

Hi,
I am trying to make an animation for a project, but I cannot figure out some things. I am trying to create the effect that a person is throwing money out the back of a car. I have the live shot of the person in the car, but I cannot get the money to behave how I want it to. I am trying to use the Trapcode Particular, but I can't get the particles to follow any motion path. When I set the settings to motion path, it prompts me to create a light. I create a light, but can't figure out how to make that light have an actual path rather than simply being a spot light. Please help! I'm sorry if I don't make any sense, please ask me to clarify if you need it.
Nicole

KWNWY wrote:
I am trying to use the Trapcode Particular, but I can't get the particles to follow any motion path. ...
Because you are doing it all wrong! If you wanted to use the Motion Path option in the Air physics model, your light would have to be exactly named like that - Motion Path 01. It's not what you want, though. I'm 100% certain of that. You are looking to create a conventional light emitter, which is a whole different thing. For that, your light should be named Emitter (or whatever other prefix you define in the plug-ins Options/ Settings panel). Then you must set the emitter type to Light. If you use spot lights and want your money to emit directionally, you need to set the emitter to Directional as well. Apart from that, Particular will use the light's color, cone angle and intensity to colorize and eject the particles. After that, you can animate the light in 3D space to whatever you need it to do.
Mylenium

Using motion clips for overlays in dvd studio?

does anyone know if you can use a motion file,(eg. highlight for a dvd menu button), in dvd studio pro for overlays?
like if you had a menu set up, and you need to put a highlght on a button for it's selected state?
thanks

Sure, just create the black and white elements (or red and blue and black, or grays, depending on the type of highlight overlay you are creating), then export as a still image.
Mark

Pin object using scroll motion (for mobile website)

I want to pin an object in a specific position. But since the pin option is not available for phone website I was wondering how can I do this using scroll motions.

Hi
Apply scroll to the object with no field value for movement which would fix that no page.
Thanks,
Sanjit

2 days ago my FF3.6.3 started becoming extremely slow/delayed on EVERYTHING/ALL ACTIONS (I have been using 3.6.3 for a few months with NO problems, until 2 days ago). Scrolling going in delayed/slow 'waves' motion (not smooth & fast), Right-click box ver

2 days ago my FF3.6.3 started becoming extremely slow/delayed on EVERYTHING/ALL ACTIONS (I have been using 3.6.3 for a few months with NO problems, until 2 days ago). Scrolling going in delayed/slow/jerky 'waves' motion (not smooth & fast), Right-click box very delayed/hangs in coming up, Text typing lagging/intermittent, activity extremely slow/delayed when pointing mouse over anything, changing from tab to tap extremely slow. Bascially EVERYTHING has become sooo slow, delayed, lagging etc. I have tried ALL possible checks (extensions, add-ons, plug-ins, download history, cache, cookies) & viewed nearly ALL the FF help sites. Is this a sudden/recent bug?? It doesnt only happen with Facebook, but EVERY window I open!!
== This happened ==
Every time Firefox opened
== approx. 2 days ago

I've personally not seen this behaviour since Firefox version 2. It however re-appeared for me in 3.6.6 and 3.6.7 (current) and it's bloody awful. Makes everything I do take 50% longer ..... great for efficiency in the modern world.
This 3.6 branch is so riddle with flaws which seem never to be fixed. Each fix / update brings with it more problems ... worst of all I see version 4 is already in development but they cannot even get 3.6 right ??? WTF ????
Mozilla must stop chasing version numbers as has become the trend in the software world. Fix an existing version to perfection then start working on a new branch of the product.

Saving Motion Effects for use in FCPX

Is it possible to save filters in Motion 5 to use in FCPX? Is it possible to save filters from Photoshop or any other applications or plug-ins for use in Motion 5 or FCPX?

Although I haven't done an complete inventory, AFAIK all the Motion filters are available in FCP. Some of them offer more parameter adjustments than the ones in FCP. If you're referring to custom effects, you could create them in Motion with drop zones and save them as templates.
Third party plug-ins for Motion and FCP are widely available, but do some research since there are currently a lot of reports of problems related to plug-ins.
Good luck.
Russ

Looking for NIDAQ Functions/Examples for 'Analog I/O DMA' and 'Digital I/O DMA'. (I am using 6024,6503 boards and VC++ in my project)

I am using 6024,6503 boards. I need to implement AnalogInputDMA /AnalogOutputDMA,DigitalInputDMA and DigitalOutputDMA blocks for another software. Why there are no NIDAQ functions used with 'DMA' ?

Alan;
The NI-DAQ doesn;t have any functions to specifically access the DMA transfers, because that is done automatically for you. Once you set the data transfer to use the DMA channels, all the rest is handled by the driver.
Once you set up an Analog input task, and select the data transfer to use the DMA channels, you won't have access to the DMA channels but to the datapoints after the transfer.
Regarding the digital side of the application, I think that what you are looking for is a pattern input/output type of application, that will use DMAs for data transfer.
The 6503 doesn't offer that functionality. To accomplish that application, you will need one of the board of the 653x family.
Hope this helps.
Filipe A.
Applications Engineer
National
Instruments

Using 720p 50fps video for Slow Motion

Hi there,
I've recently started using Photoshop Elements 9 for editing my action sports footage, and its a big improvement over free to use programs that I used before.
The thing that I have run into, and that I can't seem to solve, is making footage slow down.
I'm using both a GoPro camera (HD and HD2) and a Canon EOS 550D to shoot my video. Everything is shot at 720p @ 50fps so that I can use the footage slowed down when I want to use it that way without making it choppy (in normal 25fps export video (can be 720p, but I might use 1080p as well))
I've set up a project in PE9 using the preset for PAL-DSLR-720-50fps so that (me thinking) I can import 50fps footage without losing frames for importing. However, when I use the time timestretch function (through right click menu) and set the strech to 50% (so effectively 25fps) the video doesn't appear to have the extra frames. Even after rendering, if I foreward 1 frame at the time, every second frame is simply just a copy of the previous one. I've checked the file properties through PE9 and it says that the file is 50.000fps, so there should be 50fps available to build the footage from (yet only showing 25fps in frame by frame mode).
In searching the forum I've found some other suggestions to solve this, including the 'Interpret Footage' function. I've tried setting it to 'Interpret as 25fps' to see if this changed anything (as to smear out all available 50 frames over a 25fps clip, doubling its length), but that also retured with a copied frame every second frame.
I've also tried setting the project preset to DSLR-1080p @ 25fps to see if that might have an effect, but as soon as I import my 720p video it changes the project preset to AVCHD-LITE-720p50. Using that returns the same issue (btw, what is the difference between DSLR setting and AVCHD?). Using the AVCHD-720p @ 25pfs together with 'interpret footage at 25fps' also reverted to 50fps as soon as I imported the video file.
Frame blending isn't an option as it doesn't actually blend them. It just overlays the two frames and changes the opacity of the upper one (or so it seems), creating this weird blurry overlay effect, instead of interpolating the objects between the two frames (but maybe I'm asking for too much on this function).
Can someone please help me solve this slo-motion effect issue? I really want to use the full available 50fps footage I have shot to create smooth slow-motion in a 25fps export video (i'm not looking at reducing it much more than that). It seems that half the frames are dropped out as soon as I import into PE9.
Thanks,

As we've often discussed on this forum, Go-Pro footage rarely behaves in this program as source footage. The best solution we've found is a conversion to an editable format.
http://forums.adobe.com/thread/668369?tstart=0
In fact, mixing video footage of any types is usually not a good idea. Especially when your project settings may not fully match either.
Try using just the footage from your Canon. When you add it to your timeline, do you see red lines above the clips? If so, you are not using the correct project settings for your footage.

I use a IP.board hosted forum, and for some reason the editor tool icons will not show of Firefox. I haven't had this problem until about 2 days ago.

I have been regularly using an IP.board hosted forum on Mozilla and it has been working fine until as of 2 days ago I suddenly unable to see the post editor icons.
I looked and found a similar problem as addressed here: https://support.mozilla.org/en-US/questions/971904
unfortunately, that remedy given there did no work for me.
,Thank you

What do you see instead of those icons?
Can you attach a screenshot?
*http://en.wikipedia.org/wiki/Screenshot
*https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem
Use a compressed image type like PNG or JPG to save the screenshot.
If you see little boxes that show the hex code of the characters then those missing icons are actually supplied by a font that is downloaded from the server (@font-face)
Make sure that you allow pages to choose their own fonts.
*Tools > Options > Content : Fonts & Colors > Advanced: [X] "Allow pages to choose their own fonts, instead of my selections above"
You can check the <b>gfx.downloadable_fonts.enabled</b> pref on the <b>about:config</b> page and make sure that it is set to true (if necessary double-click the line to toggle its value).

Can I use my custom board with LPC2378 processor with ULINK2 on Embedded module for ARM and LV.

Issues in ARM and LV
Can I use my custom board with LPC2378 processor with ULINK2 on Embedded module for ARM and LV.How can I create my elemental I/O vis or I have to use the existing Keil board vis. Confused. Please help.
I have LV8.6. Which ver of embedded module for ARM should I buy. Website shows combined price for ARM module and LV. But I already have LV8.6 so what is the cost of module.
Regards
Shradha

          If the processor of your development board is the cortex-M3 core, I think you do not have to buy keil board. Now, there are a lot of OS and emulator suitable for Cortex-M3.
          Operating system I am referring to is the real time operating system such as keil RTX,uCOS,FreeRTOS,CooCox CoOS and so on. CooCox CoOS is very new, you can get more information from http://coocox.org/ .
          Emulator or debugging tools such as ULINK2,st-link,Jlink,CooCox Colink and so on. CooCox Colink is also very new. You can download the Colink Plugin from here Colink Plugin .

Use a motion board for a servo valve

Similar Messages

Maybe you are looking for