584,802 active members*
5,071 visitors online*
Register for free
Login

Search:

Type: Posts; User: unterhaus

Page 1 of 17 1 2 3 4

Search: Search took 0.01 seconds.

  1. Re: is it possible Clearpath servo's do not provide encoder feedback?

    Can you swap motors without swapping anything else?
  2. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    Thanks for the schematic. I would love to see the FW dumps, dissassembly and procedures to use the icestick.
  3. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    Interestingly, HuanYang electrical just showed up on Amazon. They use a power module. https://www.amazon.com/dp/B0775DC75F?m=A3A1CXRHIIBHYY
  4. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    you have been very helpful, thank you. That IGBT part number is for the 4kw version? It turns out my VFD has the same circuit board as the one in the link I gave before A Different Kind of Chinese...
  5. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    lonewolf55, thanks for your clarifying posts. The ebay vendor I bought from went to great lengths to make it look like my drive is a real HY, so I hope they weren't lying. I have never seen anyone...
  6. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    mactec54, with all due respect, you are not fully informed on this subject. You can go look at my links and prove yourself wrong.. I feel like you should do that before posting in here any more, but...
  7. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    Back to the topic at hand, here is the post that stopped me from working on this when I bought the VFD. Huanyang VFD controller plugin

    edited this, he posted the old circuit and the new circuit....
  8. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    you need an igbt to drive the braking resistor. Do you understand how braking circuits work? When you brake, the back emf from the motor drives the voltage of the dc bus up. The braking igbt pulls...
  9. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    yes, I'm familiar with the machsupport forum thread, but nobody has addressed the new design. I am pretty sure the VFD at the link I provided matches my VFD. It actually looks easier than the older...
  10. Re: new versions of Huanyang VFD -- can they use a braking resistor?

    it looks like it's just as simple with the new ones. Ok, I'm not positive, but this person seems to have a new version A Different Kind of Chinese Motor Controller?! Adding Dynamic Braking to your...
  11. Re: Looking for help to build a syllabus & course material

    you can gloss over details if they aren't needed. One issue can be filling the course length, if it is a fixed term school. Otherwise, break the subject down and present the subject in a rational...
  12. Replies
    16
    Views
    3,115

    Re: Servo motor brake

    I don't understand the in-line diodes at all.
  13. Replies
    7
    Views
    2,231

    Re: What is a "safe" running temperature

    we tried to demagnetize some servo motors by running current through them until they stopped heating. It didn't do anything, and they would get to 175F. We had to put insulation around them to get...
  14. Re: is it possible Clearpath servo's do not provide encoder feedback?

    I have an application where I would really like to use a clearpath, but it would be great to have the index pulse. I can use a piece of reflective tape and a photodetector, but it's inelegant as all...
  15. Re: Need DIY controller to run AC servo without encoder

    it probably has hall sensors. They are very cheap. Some encoders have a separate set of tracks that simulate Hall sensors, but it doesn't appear that yours does. Steppers are definitely easier.
  16. Re: PROBLEM BRU 500 AND BRU 200 SETTINGS OR TUNNIG

    I think you just need a VT100 terminal emulator. The drives were meant to interface to a Tandy portable computer that emulated the VT52 terminal.

    It's usually a little annoying to get the cables...
  17. Replies
    2
    Views
    663

    Re: connection to the spindle?

    I think that's a pretty common connector, often called a "microphone connector" for no good reason. Ok, apparently it's a connector used for switchable microphones. You can buy them from electrical...
  18. Re: Need DIY controller to run AC servo without encoder

    I'm really surprised you figured out to commutate the motor by yourself. Do you have the encoder pinout? I assume it has hall tracks

    You could get started with the open source radio control...
  19. Re: Parker Compumoter SM233BE-TTQN 170v BLDC Servo Controller? Voltage?

    there is something to be said for buying something that just works, and is made to work together.

    Are you building a 3 axis machine?

    To me, the AMC amps work fine, but it's sort of a low-end...
  20. Re: Huanyang 7.5 kw VFD help wiring remote start

    I take it you meant to post different pages rather than many copies of page 12?

    Not sure why they would change the designations. I thought mine was the new version.
  21. Re: Huanyang 7.5 kw VFD help wiring remote start

    my guess is that it is the same. The manual I have goes from 1/3 hp to 75 KW.

    Page 37 in the manual at this link

    Top diagram with run/stop. Ignoring the reverse button, wire it up that same...
  22. Re: Huanyang 7.5 kw VFD help wiring remote start

    you mean pushbuttons, correct?

    You just want to go in one direction?

    What kind of buttons, momentary?
  23. Re: DSMPro software for G&L Micro DSM -- any sources?

    Just to resurrect this, I may write my own. There is a help file that ships with the software that says exactly what the commands are. It's really pretty simple. I expect they just translated the...
  24. new versions of Huanyang VFD -- can they use a braking resistor?

    I have the 4K version of the new style HY vfd. It doesn't have the same main circuit board as the old ones, and I understand there is no place to put in the IGBT's for the braking circuit. I'm...
  25. Re: DSMPro software for G&L Micro DSM -- any sources?

    I was hoping someone knew where this software could be found, it wasn't that long ago you could d/l it for free. I guess the A/B version can be had for not too much money. Oh, well, found one...
  26. DSMPro software for G&L Micro DSM -- any sources?

    I probably have it on a hard drive somewhere, but I'd like to d/l it today.

    I'm guessing I could get the Electrocraft version of this to work, but I don't see that online either. Anyone know a...
  27. learning to live with the controls as they are is...

    learning to live with the controls as they are is always the most economic choice.

    If you were to do a retrofit, linuxcnc would probably be your best bet. I use interface cards from Mesanet.com,...
  28. Replies
    7
    Views
    2,476

    is this a file with a lot of small segments? ...

    is this a file with a lot of small segments? Linuxcnc has the requirement that it has to be able to come to a stop at the end of each block, but that can slow things down quite a bit if there are a...
  29. looks like that is actually a glentek part...

    looks like that is actually a glentek part number, so you want a replacement that isn't.
  30. it's likely that this is being run in PWM, if so...

    it's likely that this is being run in PWM, if so then a lot of transistors would probably work, possibly with some changes in resistors.
Results 1 to 30 of 500
Page 1 of 17 1 2 3 4