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  1. #1
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    Default External Panel Option for HuanYang VFD

    I mentioned elsewhere that I've been working on a panel for my mill.
    Top left: E-Stop, top right spindle RPM display
    2nd row centre: VFD Frequency potentiometer (spindle speed)
    3rd row: Run spindle reverse - Stop spindle - Run spindle Forwards
    4th row: Jog spindle at 5Hz Reverse - Jog spindle at 5Hz Forward
    Bottom row: table traverse (full speed) left - feed left/Stop/feed right switch - feed speed - table traverse right
    Still have to complete the circuits for my table feed.
    Here is the next version of my setup. Can't see any further issues but would like some input or recommendations.
    Not tested the RPM display yet as the inductive sensor isn't fitted yet.

    It's almost working like I want it to and I just figured out what isn't.
    This is what it looks like from the front:
    IMAG1149.jpg

    and from the rear (incomplete as mentioned):
    IMAG1150.jpg

    This is the VFD circuit and settings:
    HuanYang settings.jpg
    I used a shielded 4-pair (twisted pairs) network patch cable and a shielded RJ46 socket, using the shield as the DCM connection. If the connection to the socket in the panel fails or glitches all that will happen is the spindle will stop, but it has redundant contact points.
    I then put the whole lot into a 1/4" spiral steel and sealed flexible metal conduit bonded to the metal VFD enclosure - to prevent interference with my scales. The motor cable is in an identical but bigger metal conduit.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  2. #2
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    Default

    Hi Joe

    are yo u aware that you can buy them?

    ps....didnt get the dovetail away over the week end...going round to post office in an hour or so

  3. #3
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    No, I had no idea at all. Any hints or leads? I'm really interested in seeing other options.
    Or do you mean external HuanYang touch panels? I knew about those, but they don't have the controls I need.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  4. #4
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    Nice neat job Joe, are those push buttons momentary or latching?

  5. #5
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    Hi Joe,

    Looks good so far, I don't know of a Huanyang panel that does what you are building. I have a similar panel for the Mill, that I started a while back and never finished.

    How are you going to power the tacho? and what is that vertically mounted pcb at the bottom of the panel?

    Ray

  6. #6
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    Techo: all buttons are momentary except the E-stop.

    Ray: the vertical PCB is the speed controller for the table feed motor. It let the smoke out in last night's test even without load on the table (work or cutting force). So much for Chinese power ratings. I have a different one that worked well in today's tests and didn't even get warm.
    I will have 24V DC power on board for the feed motor and will use that to power the tacho. The circuit I have developed for the table feed also requires a couple of relays for the push button traverses I've chosen 24V DC for those as well. They switch not only the motor polarity but also take the speed controller out of the circuit, so that a setting remains unaltered following a traverse away from the work for the next cut. That also allowed me to keep the momentary push buttons small (in terms of power rating).

    I tested the final iteration of the Huanyang part with the circuit exactly as shown above and it now works EXACTLY as intended

    Now to complete the table feed and tacho part and fit it.....
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  7. #7
    BobL is offline Member: Blue and white apron brigade
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    Quote Originally Posted by jhovel View Post
    Here is the next version of my setup. Can't see any further issues but would like some input or recommendations..
    I reckon it would be handy not only to see the RPM of the machine but also the frequency of the VFD.

    The other thing is the current.
    It doesn't have to be the exact current going from VFD to the motor, even the current going into the VFD would be good enough.
    t find myself hooking my VFDs up through an extension cord with a V/I meter in in and am beginning to get a feel for what's normal and what's not.

    Not just toggling between these but be able to read all three at a glance.

  8. #8
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    Thanks for that input, Bob. I read you post about the V/I meter and thought about getting one to put in the VFD enclosure. Mine has a clear front window in front of the VFD displays and is tall enough to see both if I mount it right. It is in line of view from the front of the machine but too far away to reach the touch panels. On the external panel I'd rather have just machining controls.
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  9. #9
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    Top job Joe. I'm just completing the controls for my HY01D523B and included the recommended braking resistor, but have as yet to wire it in.
    My query tonight is about the Tacho - is this the one recommended by Ueee a while back? (Mine is YM5135FR).

    Mark

  10. #10
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    Mark: thanks for your comments.
    No, I've had the tacho for a while. It was first brought to my attention by SimonL's posts actually. The one Uee mentioned may be a better choice now (with matching sensor).
    I'm interested in your experience with the braking resistor. My machines seem to run fairly freely and setting the deceleration time to anything sensible always results in an overvoltage error. Probably because I use bigger motors than the VFDs are rated for to get more torque at low rpm.... Don't need anything like the full power of the motors at normal speed.
    There was a discussion here a while back that concluded that not all Huanyang VFDs have the internal wiring for braking resistors. Have you checked yours?
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  11. #11
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    Quote Originally Posted by jhovel View Post
    Or do you mean external HuanYang touch panels? I knew about those, but they don't have the controls I need.
    yeah those...looks like I was no help

  12. #12
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    Joe, how did you get the forward/reverse momentary switches to work with the VFD? Does the VFD have a setting that allows for this type of switch? I had to use a latching relay setup to get my Huanyang to run with these switches.

  13. #13
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    Quote Originally Posted by Techo1 View Post
    Joe, how did you get the forward/reverse momentary switches to work with the VFD? Does the VFD have a setting that allows for this type of switch? I had to use a latching relay setup to get my Huanyang to run with these switches.
    Nice work Joe,

    Your setup is very similar to mine. You will enjoy the 5Hz jog feature. I use mine all the time.

    Hi Techo1, the choice between a "latching" switch circuit and the use of a momentary switch is decided by the circuit and Pd settings. I forget the page No. on the manual but the first control circuit (the one that Joe uses) is for momentary switches. IMHO the momentary circuit (for mills) is the way to go.

    Cheers,

    Simon
    Girl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.

  14. #14
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    Ueee is offline Blacksmith, Cabinetmaker, Machinist, Messmaker
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    I like it Joe.
    Are you going to put it on a pendant or is there somewhere else handy to hang it?
    You are out of space there but one thing I would suggest is another tacho, bit on the leadscrew. Plug a multiplier in to it and it will give you your table travel in mm or inches per minute. The next step would be a micro processor so that the feed rate could be set and then remain constant with changes to the spindle speed. That way you can set it for feed per rev and not always be guessing at the best feed rate.

    Ew
    1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.

  15. #15
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    Very interesting read. I've been collecting parts for a much simpler control box for when I convert my lathe to VFD. Using cheap parts from eBay to just test the concept first. Only have RPM display, on/off switch, safety mushroom cutoff button and pot for speed, all housed in a plastic box.

    Looking at the wiring it looks a little more involved than I suspected, however not too put off by that as I recently wired my motorbike from scratch.

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