495,938 active members
8,955 visitors online
Register for free
Login
495,938 active members
Page 1 of 3 123
Results 1 to 12 of 32
  1. #1
    Neuer Benutzer
    Join Date
    Jan 2013
    Posts
    140

    Can anyone recommend a VFD brand and a good supplier?

    After my difficulties with my VFD (Here's the thread if your interested: [url]https://www.cnczone.com/forums/spindles-vfd/372480-huanyang-gt-inverter-starts-doesnt-stop.html[/url]). I am going to buy a new VFD.

    I would like to know what are some brands you have had good experience with and what to stay away from. And do you have any recommendations for a good supplier. I don't have a lot of experiance with VFD's so a good supplier is important.

    What is important to me is:
    Well made product that does not need tinkering (A set it and forget it).
    A supplier who can sell me the correct product, (being able to size it etc.)
    A supplier/company with good tech support that would be willing to walk me through every step of setting it up if needed.
    Price is always a concern, but I am willing to pay more for a good product.

    I will be avoiding the Huanyang brand after this.

    I've attached a picture of my Spindles plate if interested.

    [ATTACH=CONFIG]408902[/ATTACH]

  2. #2
    Registered
    Join Date
    Dec 2013
    Posts
    2825

    Re: Can anyone recommend a VFD brand and a good supplier?

    Do you have 3 phase power available?

  3. #3
    Registered
    Join Date
    Jul 2014
    Posts
    20

    Re: Can anyone recommend a VFD brand and a good supplier?

    I cannot vouch for customer service but real vfd manufacturers have manuals that are way way better than the junk packaged with generic Asian import ones. Step one, ignore most of the vfds on Amazon and buy one from an actual process control place like Automation Direct

    I've heard great things about the Lenze SMvector drives.
    The WEG Cfw300 is a good one, same with durapulse gs3, and maybe a small step down, TECO.
    You should not have to oveesize with a good vfd. Just buy the one with the same hp rating (and amp rating) as your spindle.

  4. #4
    Super Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Posts
    22993

    Re: Can anyone recommend a VFD brand and a good supplier?

    The ones I have used in the past that also have good customer support:
    Hitachi
    WEG
    Mitsubishi
    also Allen-Bradly and Telelmecanique, at higher $$.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
    Neuer Benutzer
    Join Date
    Jan 2013
    Posts
    140

    Re: Can anyone recommend a VFD brand and a good supplier?

    I don't have 3 phase. As seen in the picture it is only 6.6 hp. My power to the unit can handle 60 amps conservatively.

  6. #6
    Super Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Posts
    22993

    Re: Can anyone recommend a VFD brand and a good supplier?

    Looks like a 18,000rpm spindle 380v 3ph.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  7. #7
    Registered
    Join Date
    Dec 2013
    Posts
    2825

    Re: Can anyone recommend a VFD brand and a good supplier?

    [QUOTE=TTalma;2247716]I don't have 3 phase. As seen in the picture it is only 6.6 hp. My power to the unit can handle 60 amps conservatively.[/QUOTE]

    The reason I asked the question is because the motor is 380V (400V class) so this limits your options a bit. Most 400V class VFDs require 3 phase input. There are some 230V single phase in and 380V out VFDs, but most are from Asian vendors. Not sure if there are any mainstream manufacturers that supply a VFD like that.

    If I needed to run that motor, I would install a rotary phase converter and a transformer to get 3 phase 400V power available. Then your VFD options increase dramatically, and in that case I would go with a Automation Direct GS3 VFD.

  8. #8
    Neuer Benutzer
    Join Date
    Jan 2013
    Posts
    140

    Re: Can anyone recommend a VFD brand and a good supplier?

    I've done a little checking. I haven't made any calls, but It looks like Danfoss, Hitachi, and Delta make a VFD that I can use. I was looking for a TB Woods one, but apparently they sold their motor control division to Danfoss.

    I do not know a lot about motors but from what I can gather from online discussions etc, I need a VFD that takes 240V in and can put out 380V. And since I would be using 2 phase rather than 3 phase I would need one rated for double the Kw draw (or double the hp) since the current draw on the 240V will be double, and the math supports this.

    And in most instances a VFD that is 3 phase will work with single phase 240V input. But I need to verify this with the manufacturer.

    But mainly since I am not sure I will definitely need to make a call before I order one. If you had to call someone to select one for you who would you call?

  9. #9
    Super Moderator Al_The_Man's Avatar
    Join Date
    Dec 2003
    Posts
    22993

    Re: Can anyone recommend a VFD brand and a good supplier?

    Out of the selection I have only used Hitachi, and received good service when contacting them via Hitachi USA site.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  10. #10
    Gold Member
    Join Date
    Jan 2005
    Posts
    8751

    Re: Can anyone recommend a VFD brand and a good supplier?

    [QUOTE=TTalma;2247686]After my difficulties with my VFD (Here's the thread if your interested: [url]https://www.cnczone.com/forums/spindles-vfd/372480-huanyang-gt-inverter-starts-doesnt-stop.html[/url]). I am going to buy a new VFD.

    I would like to know what are some brands you have had good experience with and what to stay away from. And do you have any recommendations for a good supplier. I don't have a lot of experiance with VFD's so a good supplier is important.

    What is important to me is:
    Well made product that does not need tinkering (A set it and forget it).
    A supplier who can sell me the correct product, (being able to size it etc.)
    A supplier/company with good tech support that would be willing to walk me through every step of setting it up if needed.
    Price is always a concern, but I am willing to pay more for a good product.

    I will be avoiding the Huanyang brand after this.

    I've attached a picture of my Spindles plate if interested.

    [ATTACH=CONFIG]408902[/ATTACH][/QUOTE]

    If you had of posted your spindle spec's in your other thread, you may not of messed up the other VFD drive, going by what I can see from this Combo Spindle spec's, you had all the main Parameters set wrong, if this is the same spindle you where trying to run on the other VFD Drive

    It does not matter what brand of VFD Drive you buy, very few tech support people know how to setup VFD Drives for High Speed Spindles
    Mactec54

  11. #11
    Gold Member
    Join Date
    Jan 2005
    Posts
    8751

    Re: Can anyone recommend a VFD brand and a good supplier?

    [QUOTE=TTalma;2247952]I've done a little checking. I haven't made any calls, but It looks like Danfoss, Hitachi, and Delta make a VFD that I can use. I was looking for a TB Woods one, but apparently they sold their motor control division to Danfoss.

    I do not know a lot about motors but from what I can gather from online discussions etc, I need a VFD that takes 240V in and can put out 380V. And since I would be using 2 phase rather than 3 phase I would need one rated for double the Kw draw (or double the hp) since the current draw on the 240V will be double, and the math supports this.

    And in most instances a VFD that is 3 phase will work with single phase 240V input. But I need to verify this with the manufacturer.

    But mainly since I am not sure I will definitely need to make a call before I order one. If you had to call someone to select one for you who would you call?[/QUOTE]

    Well that's not going to happen, what you put in in this case is what you get out, the only way you can do this is with a transformer 240v to 380v and then a VFD drive that is 380v

    But even then this may not work very well, you really need 380v 3 phase for this Spindle

    [U]All 3phase VFD Drives can run on single phase[/U], up to the max that you can get from your supply as single phase, 12Hp is around the limit for most Single Phase supplies

    Buy a Spindle and VFD to suit your Power source which seems to be 240v single phase and 4.5Kw would be around the max Spindle you could run
    Mactec54

  12. #12
    Neuer Benutzer
    Join Date
    Jan 2013
    Posts
    140

    Re: Can anyone recommend a VFD brand and a good supplier?

    [QUOTE=mactec54;2248140]If you had of posted your spindle spec's in your other thread, you may not of messed up the other VFD drive, going by what I can see from this Combo Spindle spec's, you had all the main Parameters set wrong, if this is the same spindle you where trying to run on the other VFD Drive

    It does not matter what brand of VFD Drive you buy, very few tech support people know how to setup VFD Drives for High Speed Spindles[/QUOTE]

    This is the spindle that I had on the other forum. I still haven't ordered a new one yet, If you are able to point me in the right direction concerning the settings I am willing to try them. The on I am most interested in getting working is how to make the spindle stop when I press the stop button. I currently have nothing connected to the VFD other than power and and the spindle. So I would like to be able to get that working. and would very much appreciate the help in doing that.

    I am surprised by your comment that very few tech support know how to setup high speed spindles. I spoke with people from several suppliers and while I was switched to a couple of different tech because it was a high speed spindle, in every call there was someone familiar with the spindle and exactly with what I am trying to do, apparently it's very common.

Page 1 of 3 123

Similar Threads

  1. Can any one recommend a good UK supplier
    By atkinsonp in forum General CNC Machine Related Electronics
    Replies: 0
    Last Post: 11-02-2013, 04:32 PM
  2. Recommend a good mist system!
    By DRock in forum Benchtop Machines
    Replies: 12
    Last Post: 12-28-2012, 06:19 PM
  3. Could you recommend a good book on CNC milling?
    By rpopiel in forum General Metalwork Discussion
    Replies: 6
    Last Post: 02-20-2008, 11:22 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •