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2 Speed 3Ph Motor on VFD

AlxJ64 said:
Don't buy it... well, maybe you'll have better luck than me.

That cheap VFD that I ordered showed up last week and I just got some time last night to open the box and start looking at how to wire it. The seller (ebay seller of chinesium) had it listed as a Huangyang 7.5 kw and thats what the photos looked like. When I opened it up, nope... an unbranded clone and the first thing I noticed was that the blades on the cooling fan were already caked with dirt, which tells me its built from recycled parts. Lovely.



CarterKraft If you have the GT series unit, there is a 3 wire mode that you can select and it will allow you to operate the momentary type switch to control the machine. You can even reverse the logic on it too where closed is off and open is on, etc. The knockoff unit I am sending back only offers the run / rev remote leads as NC inputs from the common output with no programmability for momentary or reverse logic.
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Well shit, I hope I didn't jinx yah.

I have what I think is the latter like your NC inputs with no programmability or logic.
I'm gonna have to build a logic gate to latch a relay or something to get the controls working for a simple Stop/Start pendant.
Maybe I just re-evaluate the pendant options and build a pendant that will work as is.

It's low on my list of to-do.
 
AlxJ64 said:
Yep, thats the one that came in the box.. but the listing (which is "sold out" now, had photos of a different one. The same aluminum cooling block heat sink that I have on my Cinci.

It was listed as a Huangyang but its not that I can find. I have checked every setting in the book and it won't seem to fire up. Glad to hear yours is running good. I'll check it all over again tonight but for the life of me can't seem to see whats wrong with this one and yet the other one works when I wire it up the exact same way. Potentially there is a printing error in the manual but I don't see how. I even swapped around the 3 lines to make sure my U V W and L1 L2 and L3 didn't need to be a certain way, but nah. Seems to not matter. Won't put any amps out.
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Actually, I had to go look at mine. That pic is from the ebay listing I bought it from, but the one I actually got doesn't have a pot knob for the speed - it has up and down arrow buttons instead. 🤷

I'm curious to see if it can run the big Monarch when I get it all back together.
 
bgaidan said:
Actually, I had to go look at mine. That pic is from the ebay listing I bought it from, but the one I actually got doesn't have a pot knob for the speed - it has up and down arrow buttons instead. 🤷

I'm curious to see if it can run the big Monarch when I get it all back together.
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Check out older Abom79 vids on yt. For Monarch porn and tech.
 
bgaidan said:
Uh....yeah. He's most likely the reason I even knew what a Monarch was. :laughing:
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I just found him! Cool story with that guy. Funny the first vid i saw was him talking about closing the shop, so ive watched much of it in order. I'm really enjoying watching. Its the kind of old techniques the guy who taught me used.

We had an old Monarch in one of the maint ahops i worked in. I was the only one who used it, it was awesome. I wanted to take it when I quit. I don't remember the model, but it was big.
 
PoBoy84 said:
I just found him! Cool story with that guy. Funny the first vid i saw was him talking about closing the shop, so ive watched much of it in order. I'm really enjoying watching. Its the kind of old techniques the guy who taught me used.

We had an old Monarch in one of the maint ahops i worked in. I was the only one who used it, it was awesome. I wanted to take it when I quit. I don't remember the model, but it was big.
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I haven't watched him in well over a year. It started getting bad with all the fucking hastags in every video description and everything he posts. #crc #flexcnc #CarlsJr. His facebook posts will be two lines of text and five lines of hashtags of all his sponsors. :shaking:
When he started moving in to the new shop and moved in a couple million $$ worth of new tools that were clearly "donated" or loaned but I don't think he's once actually stated that, I really don't can't stand watching his shit any more. Hard to trust that his opinions are based on his experience and not who's paying him in some form or another.
 
bgaidan said:
I haven't watched him in well over a year. It started getting bad with all the fucking hastags in every video description and everything he posts. #crc #flexcnc #CarlsJr. His facebook posts will be two lines of text and five lines of hashtags of all his sponsors. :shaking:
When he started moving in to the new shop and moved in a couple million $$ worth of new tools that were clearly "donated" or loaned but I don't think he's once actually stated that, I really don't can't stand watching his shit any more. Hard to trust that his opinions are based on his experience and not who's paying him in some form or another.
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I wondered if it would become like that. I haven't seen any of the new ones, other than the thumbnails,and I don't have social media, so I can only speak to a bit before he goes in new shop. BUT, when I saw that massive Flex cnc in one of the pics, I knew my interest would dwindle if the content goes to that. I like manual machining and watching him overcome obstacles. I suppose I'll have to find another once I burn through the old stuff if he stops doing that work.. Is he still doing any cool stuff in the newest vids? He's awful talented regardless.
 
PoBoy84 said:
I wondered if it would become like that. I haven't seen any of the new ones, other than the thumbnails,and I don't have social media, so I can only speak to a bit before he goes in new shop. BUT, when I saw that massive Flex cnc in one of the pics, I knew my interest would dwindle if the content goes to that. I like manual machining and watching him overcome obstacles. I suppose I'll have to find another once I burn through the old stuff if he stops doing that work.. Is he still doing any cool stuff in the newest vids? He's awful talented regardless.
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If you like manual machining and general machine shop fuckery / humor... ThisOldTony is pretty good. His older stuff mid era is good. He too has dipped into CNC stuff, but its cheaper home shop level.
 
I'm giving Abomb a break for now cause of all that shit.

I recently saw a mention of a video where the flex CNC was going to be used to put full length key slots in long roller shafts.

So he might actually be building a business out of all this shit but I am reserving judgement for when all this shit is done.
 
CarterKraft said:
I'm giving Abomb a break for now cause of all that shit.

I recently saw a mention of a video where the flex CNC was going to be used to put full length key slots in long roller shafts.

So he might actually be building a business out of all this shit but I am reserving judgement for when all this shit is done.
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Oh, I'm sure he'll make money on it. Not nearly as much as he'll make promoting it though. Pretty sure he stretched the flex unloading and setup in to half a dozen videos. :laughing: From what I understand, he got the flex and the Milltronics VMC and lathe are all "demos" that he's free to use any way he likes. He gets free use of machines and they get 100k worth of views every time he uses one in a video.


Cutting Edge Engineering is the new leader in big manual machining videos.
 
bgaidan said:
Oh, I'm sure he'll make money on it. Not nearly as much as he'll make promoting it though. Pretty sure he stretched the flex unloading and setup in to half a dozen videos. :laughing: From what I understand, he got the flex and the Milltronics VMC and lathe are all "demos" that he's free to use any way he likes. He gets free use of machines and they get 100k worth of views every time he uses one in a video.


Cutting Edge Engineering is the new leader in big manual machining videos.
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CEE is still solid, "good enough" machining and fixturing on shit I am familiar with, I like it.
 
bgaidan said:
Cutting Edge Engineering is the new leader in big manual machining videos.
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Being in Aus probably fucks him out of sponsorship because all the big companies that give shit away like that tend to have all sorts of dumb bureaucracy that makes it hard to give away overseas. Good for us viewers though. :laughing:

CarterKraft said:
CEE is still solid, "good enough" machining and fixturing on shit I am familiar with, I like it.
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This. Read the spec, build to spec. None of that tool room circle jerking about superfluous thou.
 
I've not heard of CEE but I'll check them out today. I watched some more current videos last night, and did see Abomb cut those key ways. He was practicing but it was a customer job. I don't like the 'for YT" jobs as much as customer real world work. If he goes the former I'll quit watching.
 
PoBoy84 said:
I've not heard of CEE but I'll check them out today. I watched some more current videos last night, and did see Abomb cut those key ways. He was practicing but it was a customer job. I don't like the 'for YT" jobs as much as customer real world work. If he goes the former I'll quit watching.
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This stuff that really made him youtube famous was when he worked at motion doing big turning jobs. Very little unnecessary commentary and no plugs or pushing sponsors. Just big curly chips going "tink". Pretty sure those videos still have far more views than a lot of his newer stuff.
 
bgaidan said:
This stuff that really made him youtube famous was when he worked at motion doing big turning jobs. Very little unnecessary commentary and no plugs or pushing sponsors. Just big curly chips going "tink". Pretty sure those videos still have far more views than a lot of his newer stuff.
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Those are the ones that I'd recently found. The ones of him I've watched in his own shop he was still at motion. Those ones are awesome.
 
bgaidan said:
This stuff that really made him youtube famous was when he worked at motion doing big turning jobs. Very little unnecessary commentary and no plugs or pushing sponsors. Just big curly chips going "tink". Pretty sure those videos still have far more views than a lot of his newer stuff.
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He has a bunch of random how to videos that have a ton of hits because "big name youtuber" + "how to"
 
arse_sidewards said:
He has a bunch of random how to videos that have a ton of hits because "big name youtuber" + "how to"
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You can tell when someone who posts things on yt becomes a "youtuber". I'm' sure it is great and life changing for the person, but it sure sucks for the viewers when they thought they'd keep being fed cool stuff. Or more likely, those of us who just want the tech and no side bs have become the minority.
 
Here... I can connect both the de-rail of this thread, back to the original thread title.

I got the Lathe up and running on both high and low speeds, Forward and reverse. All on the original machine controls. I still also have the ability to ramp my frequencies between the gears and get a bunch more speed control. I am going to pull the cover and check on that one rattle gear. It only rattles with the selector in the specific position so might be a bushing / bearing bad on a gear on the counter shafts.


And yes, it is filmed vertical because it went on IG before it was dumped on the YT to share here.

Running the Two Speed Motor on the VFD



Either way the machine works. It came with a Dorian SD35CXA tool post but with only one holder. I also have a NOS Dixon S4 with a pile of holders but need to machine a saddle plate for it before I can use it. Trying to decide if I should keep the Dorian and collect tool holders or sell it and run the Dixon.

20230403_162642.jpg
 
If I wanted the most speed control, I’d use an 8hp vfd to run high speed and a 4hp vfd to run low speed. Rewire a pair of the fwd-rev starters for the changeover relays.
There should already be a relay for the hi speed wye, and the contactors should all have aux contacts for interlocking the vfd’s.
Abandon the overload relay, wire up vfd DI/DO’s to existing controls, add vernier knobs on the speed pots because they’re cool.
 
Very nice! Did you end up switching power after the VFD output with the original black lever switch? I'd like to get this ability with my Bridgeport mill 2-speed motor, but I expected the VFD to balk because the loads are so much different between the two sets of windings?
 
AlxJ64 said:
Here... I can connect both the de-rail of this thread, back to the original thread title.

I got the Lathe up and running on both high and low speeds, Forward and reverse. All on the original machine controls. I still also have the ability to ramp my frequencies between the gears and get a bunch more speed control. I am going to pull the cover and check on that one rattle gear. It only rattles with the selector in the specific position so might be a bushing / bearing bad on a gear on the counter shafts.


And yes, it is filmed vertical because it went on IG before it was dumped on the YT to share here.

Running the Two Speed Motor on the VFD



Either way the machine works. It came with a Dorian SD35CXA tool post but with only one holder. I also have a NOS Dixon S4 with a pile of holders but need to machine a saddle plate for it before I can use it. Trying to decide if I should keep the Dorian and collect tool holders or sell it and run the Dixon.

20230403_162642.jpg
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Time to sling chips :beer:
 
78bronco460 said:
If I wanted the most speed control, I’d use an 8hp vfd to run high speed and a 4hp vfd to run low speed. Rewire a pair of the fwd-rev starters for the changeover relays.
There should already be a relay for the hi speed wye, and the contactors should all have aux contacts for interlocking the vfd’s.
Abandon the overload relay, wire up vfd DI/DO’s to existing controls, add vernier knobs on the speed pots because they’re cool.
Click to expand...

This machine setup is even more simple than all of that. There is just one Mag starter and then the speeds and directions are controlled by a massive drum switch that is something like a 60a rating or more; I saw various ratings depending on the year (1960s) of the literature I could find on it, but 60a was the lowest I saw. In the case of this old thing, and it being a hobby machine, its the KISS factor here.

Andrew S said:
Very nice! Did you end up switching power after the VFD output with the original black lever switch? I'd like to get this ability with my Bridgeport mill 2-speed motor, but I expected the VFD to balk because the loads are so much different between the two sets of windings?
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Don't use the auto-tune feature on the VFD; that is, if its a nicer one with that option for a parameter. Otherwise, the VFD shouldn't really care because it isn't checking for the impedence. I also set the rpm setting to the higher motor speed. So far the VFD doesn't care on my test speeds. I have yet to put it under load as I need to either pickup some tool holders for the Dorian or make a T nut for the bottom saddle. Its been 14 hour days at work this week so I've not touched anything since the weekend.
 
Was running this machine last night. So far zero problems, VFD faults, or anything. Watched the motor temp after a long night of hogging and on a project a few weeks ago and it didn't even change temp. Only thing that got warmer was headstock warmed up to about 100 deg F in a 72 deg room.

Made a replacement spindle for my brother's boat trailer, and also turned the lathe into a HZ boring machine to drill in a pilot bore into the remaining part. I then used an end mill to lightly face off the shoulder where the spindle was cut off to give a good square shoulder. This kept things nice and straight and gave a "hammer tap tight" fit to drive in the spindle I made before TIG'n it back on. He lives in Eastern Ky, so probably not too many bus loads of Nuns to kill out there with this repair. 13/16"-20 is an odd ball thread that I didn't realize was used on some of these trailer axles and evidently some early Ford spindles too.

20230710_194321.jpg


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AlxJ64 said:
13/16"-20 is an odd ball thread that I didn't realize was used on some of these trailer axles and evidently some early Ford spindles too.
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There's another oddball size on the high end. It's whatever the old Timken split rear ends that everyone used to build their racing full floaters back in the 60s was. A bunch of racing shit still uses that size.
 
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