584,808 active members*
5,158 visitors online*
Register for free
Login

Search:

Type: Posts; User: WesM

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    Did you end up using the 5v differential signaling or the 24v single ended?
  2. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    Buck transformers are pretty cheap. I was able to get a used one thats rated for 50a @ 240v for about $50. It will take my 245vac down to about 222vac. New they are around $150.

    Just to be clear,...
  3. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    Just to be clear, the stepperonline T6 drives do have 400v caps. I can see two large caps with 400v 560uF marked on them. There are also some smaller CD28S caps I can see. My concern would be that...
  4. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    Craig, I think the question is if any of us are willing to risk burning a drive to test out your assertion. You are probably right, but $50 for a transformer is cheap peace of mind in this regard.
    ...
  5. Re: Is anyone using Leadshine or Stepper Online ac servos - Tuning guidance required

    When I was researching the T6 servos, the Leadshine EL6 servos/drives looked identical, they seem to have updated the EL6 drives since then though. But I had started just asking leadshine questions...
  6. Re: Is anyone using Leadshine or Stepper Online ac servos - Tuning guidance required

    Thats excellent! yeah one of the youtube guys (clough42) had issues with the db9 converter as well. For anyone reading this thread in the future, stepperonline sells a DB9-USB converter thats...
  7. Re: Is anyone using Leadshine or Stepper Online ac servos - Tuning guidance required

    Have you tried doing the auto tune for inertia and stiffness in motion studio? The quick start PDF on stepper online has a basic procedure for this written out. Curious what the results were. I will...
  8. Replies
    0
    Views
    569

    Re: Upgrade servo drives

    The part in bold has me concerned that you are thinking of trying to pair another brands AC servo drives with your existing drives. From what I understand most AC servo drives are HIGHLY brand...
  9. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    So I was recently tasked with researching a toolroom bedmill for the organization I work for. Among the competitors we are looking at is ProtoTRAK. I was at their showroom this morning and was...
  10. Re: Upgrade from the stone age: which is the right choice?

    Have you looked at Centroid? They have several solutions that would probably work for your machine. I am currently setting up a machine with their acorn board and have been thoroughly impressed so...
  11. Replies
    5
    Views
    848

    Re: How to get a 110v in a 240v CNC enclosure.

    You should have 4 wires coming to the enclosure, two 120vac hots, a neutral and a ground. The two 120vac legs give you 240vac. To get 120vac you will use the neutral and a single 120vac leg.
  12. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    You are correct Craig about the 60v system. Max RPM of the servos will be limited to 2k I think. Thats still good for around 300 IPM in a machine his size depending on the ballscrew pitch, I don't...
  13. Replies
    27
    Views
    1,612

    Re: 8 x 30 knee mill servo selection

    I sent a PM about this but I will post here for anyone else looking, but the T6 servo is made by leadshine and use the leadshine tuning software. I will be going through the tunning process for my T6...
  14. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Wow thats kinda crazy that 5 on a 10A breaker are not tripping it. I doubt my Z axis will ever pull much current, since its just driving the quill, in fact 750w for that was probably insanely...
  15. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    You mentioned hundreds of dollars on breakers... maybe I am looking at the wrong things, but these seem fairly reasonably priced.

    I plan on using these for the servos:...
  16. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    I am still figuring out the BOM for my build. Right now I have the servo drives and VFD on their own breakers. Lube pump and coolant pump will probably get a breaker. There is an air actuated spindle...
  17. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Does it matter where the EMI filter is in the circuit? Say would it be ok to have something like this for a wiring layout?

    240v AC outlet -> main Cabinet switch -> Contactor -> 30a EMI filter ->...
  18. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Got slightly distracted with this project with a major home remodel project... Figure I will continue using this post to keep this project together.

    Currently looking at EMI filters for the...
  19. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Right, that would have to be answered by someone with a lot more experience than me. I can tell you how industrial equipment operates, but not how (well, maybe a little of the how, but not much) or...
  20. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    oh, well I suppose there was a reason all the other builds I was seeing on cnczone used one. All of the centroid schematics for the acorn use one too. I definitely do want the E-stop to power down...
  21. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Hah, fair enough, 30a it is. I'm planning on using a 24vdc contactor for VFD and I will have the 3 servo drives on another contactor. Do you generally size the contactors at the same amperage as the...
  22. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    The VFD manual says 1.6-2.6 x the input current for breaker sizing. I'm unclear on what the input current will actually be. The VFD manual says it pulls up to 24.2a input in continuous torque mode...
  23. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Hey Craig, thanks for the info. I can get a 50a circuit to the garage fairly easily.

    So would you suggest just going with 6a D curve breakers inside the cabinet for the 750w servos I have? The...
  24. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Just to be clear;



    The T6 is the servos and drive.
    I think?? 5.2a is the rated input for the T6 servo drives from what I can tell.
    The GS21-23P0 is the VFD.
    27.5a is the rated input for...
  25. Re: Breaker sizing for CNC cabinet (AC servos and VFD)

    Here is the specification for the VFD I am planning to use. I am using the GS21-23P0, which has a rated current of 27.5a variable and 24.2a continuous.
    ...
  26. Breaker sizing for CNC cabinet (AC servos and VFD)

    So I am trying to figure out what size breaker will be needed to feed to the CNC cabinet I'm putting together for a knee mill I am setting up. I am a complete novice when it comes to electronics, so...
  27. Replies
    59
    Views
    6,428

    Re: AC servo recomendations

    Stepperonline got back to me, they said the T6 drives should be powered by 220 +/- 15%. But they did not recommend running the drives at or over 250v long-term as it would likely shorten the life of...
  28. Replies
    59
    Views
    6,428

    Re: AC servo recomendations

    Oh no I definitely did not expect them to make a significant effort, but figured I would ask to see if they could adjust it down to 240 at least.

    I noticed on page 18 of the T6 servo manual (and...
  29. Replies
    59
    Views
    6,428

    Re: AC servo recomendations

    I talked to my electrical company and they were not willing to do anything. As long as the 240 is +/- 5% its within spec.

    I am not willing to risk blowing a drive. so I found an ACME 1 kva buck...
  30. Replies
    59
    Views
    6,428

    Re: AC servo recomendations

    I am getting the stepperonline T6 servos, which are 220v +/- 10%. The E6 servos do not come with any tuning software, so you are left working with the panel buttons. The T6 servos use leadshine's...
Results 1 to 30 of 84
Page 1 of 3 1 2 3