SEE THE BANGGOOD 220v VFD INVERTER BUYING LINK BELOW:- 2.2kw 220V Single Phase Inverter -- goo.gl/ZNYHxf Wholesale Power Inverter -- goo.gl/i5LyXt ALSO SEE SOME GREAT OFFERS ON NEW DRILL BITS:-30% off Drill Bits Promotion -- goo.gl/KrG3Wh (code: 266b22 ) Mid-year Mechanical Parts Sale (up to 80% off) -- goo.gl/BhBHhw TAPER-LOCK MOTOR PULLEY . SPZ67-1108. TAPER-LOCK BUSH 1108-19mm.........(To fit the 19mm motor shaft).
Sir is this inverter can work by timing for example I'll sett timing in 10 seconds working and then 5 seconds rest and then working 10 seconds then 5 seconds rest ?? Is this possible??
This video is priceless to me. I have just purchased the same make of motor, but 2.2Kw, and the same inverter for a 2"x72" belt grinder build. I'm clueless about electrickery and this is like a video manual. Thanks Steve for taking the time to offer such thorough instruction, and for making no assumptions about what people know of a subject. Worth its weight in gold .
Thank you Lindsay - I’m keeping the original .5hp, and will look to use the .75kw inverter (1hp). I am new to the ML7, and find your videos absolutely spot on for a novice like me!
Taperlock is a great system, I've used it for a good few years and it comes with a huge variety of fittings. It's not the cheapest system but it is the best.
Hi Steve Once again many thanks for the video. Was going to buy one ready made. But the well known company kept lying to me. They were supposed to In stock clearly weren't and kept lying to fob me off giving them time to get one made three weeks later. See your videos and have ordered exactly the same set up you have. At a fraction of the price of the one I was trying to buy. Stay safe keep them excellent videos coming
Hello Steve, very nice informal explanation, easy to understand what you are describing .so the layman can understand what had to be done and in sequence.very nice thank you for sharing.
Another great video and just in the nick of time. I was on my way this morning to Newton Tesla in Warrington to buy a kit like this for my ML7. I think I may hold off and see you make your control panel. Many thanks.
Converting old 3 phase machines to run on Inverters from a single phase supply has become popular, but the VFD needs to be correctly set up to protect the motor, and the Delta connected motor will draw more line current, so the motor cable may need to be uprated. Also, old motors may have degraded insulation and fail when supplied by VFD. And finally and most importantly, make sure the motor has a good Earth connection to the supply.
Hi Luke, If you click on my TH-cam community page tab and scroll down the page you will see the instructions in pdf format you can download or copy. Regards Steve
Steve,thanks for this highly informative video. I had wondered about the TEC motors seen on fleabay. Now I can see they're quite good. I have a Harrison L6 lathe and Alba shaper I am intending to convert to VFD drive. Also good to know the Banggood VFD unit looks reliable. Thanks again, Howard
Oh, I was looking at one of those online the other day, I believe. A thoughtful feature was the Aluminum frame and armature, I believe. The savings in shipping should be substantial and the aluminum should keep it cool. Quality appears excellent as with the included pulley
Steve Hi, you ref the Taper Pulley which provides a greta solution, would you be able tp provide the link where you purchased this also for the Motor used please
I need one of those pulleys for my S7. It's pulley is always working loose on me! The power braking on a VFD is great especially if you are cutting threads in metric. You need to watch out the chuck doesn't unscrew itself though!! Obviously a bit late now, but check your junk yard for 3 phase motors. I've found a couple of good ones at mine! There's really nothing that can go wrong with them other than a worn out bearing which is an easy fix.
The AT1 is for 220V or dual voltage 3ph motors, I made the mistake of getting this model, but I had to return it. I believe I need the AT4 model for connection to 380V motors, in the black casing, as my motor is 415V
Mr. Jordan, nice video I'm trying to locate a motor it shows (no longer made) I'm from the US I'm assuming any 3-ph 1hp 4-pole motor 1740 rpm should work I have a drill-mill which is what I want to convert. I'm somewhat concerned if I will keep enough torque depending on the pulley? They show the VFD inverter on eBay at $118.00 dollars. Also, I like the dial gauge set-up for the quick change.
Hi I have put the instructions in a pdf file on my TH-cam community page. Just click on the community tab and search that through for the link. The pages may not be in order but the instructions are all there on the link. Regards Steve
Steve Hello. I see that the 3 phase motor is then connected wired to the inverter...Does this then mean the inverter is then wired to a 3 pin plug. So that normal house electricity via a 3 pin plug powers the inverter..thus the inverter then supplies electricity to the 3 phase motor ? Thank you...
Great video, thank you very much. I just bought a ML7 and I'm also considering to change the motor and add a VFD. But I have one question, now that you can change the speed using the VFD, so you still use the belt and Pulleys to change the speed?
Hi, Thanks. Yes, I still change the speed using the belt and pulleys. Especially onto the lower speed range as it gives extra spindle torque for large hole drilling etc. Regards Steve
@@SteveJordan If it's an induction motor do not use speed control on vfd or u'll damage motor, program the vfd to run motor at full speed going by the info on motor plate. Constant induction motors need to run full. 1 person said to use heavier wire when set to delta 3 phase as it uses more current. It doesn't, it uses less and that's why 3 phase is used commercialy because the electric is divided into 3 live wires instead of 1 and u get alot more power from less current
hi Steve, thanks for your videos. What happened to the old motor? It looked and sounded like the motor on my ML7 which was made by Hoover in Scotland. Did it give up?
If a motor that works only on 380 volts is connected to a suitable inverter (220 volts input, 380 output)... will the motor run at its full efficiency without decreasing torque or speed? Thanks!
Thanks Steve for this video I know that it is relatively older now but I used the information to do a similar thing and it worked perfectly. Great content. Well done.
Great video Mike, I’ve just bought one for my lathe. Was looking at purchasing a Newton Tesla control pendant. Do you know if this inverter supports whats referred too as '3-wire' control - or self-latch - to work with the momentary start/ stop pushbuttons?
Hi I don't know about that. I have wired one of mine up with the auxiliary control so that I can use the start/stop and foward/reverse on the lathe, but that's all I know about them.
Hi Steve - would the same motor work on an ML7-R? I know next to nothing about electronics but have located the parts you've used and think I can follow your excellent guide, but wonder if that motor will work for our lathe - and if so, would I need to select the 2 pole version of the motor, as it has a faster top speed? Thanks, Chris
Hi Chris. Yes, this setup would be good for your lathe. I only know basic electronics and have just followed the diagrams and what others have done online. In the first video on the connection of the motor, I had it set wrong, but it wasn't something that could damage the motor. It's worth reading the comments on some of the videos. I didn't go for the 2 pole as I never use any speeds above 1,100 rpm. I don't actually know about the difference in the different pole versions, only that the one like you said is faster. It maybe worth finding out about it from someone who knows. Regards Steve
@@SteveJordan Many thanks for the reply, Steve - I really appreciate it and will double check, as you say. And we're really enjoy watching your videos as we learn to use the lathe, thank you! Chris
Hi Steve. I own the same VFD like you. I have a bench lathe with a three phase motor, 1.1Kw and 1400 rpm. I would like to install a brake resistor, because I need the lathe stopping very quickliy and I don't want to damage the motor. Do you know if this VFD can install a brake resistor? If so, do you know the proper value and where and how wiring the brake resistor? Thanks in advance and best regards.
Hi Steve! Have You tried to lower the voltage output from the VFD? I have this universal brushless 195V washing machine motor, I want to use on a circulation pump on my plating tank setup. I'm just wondering if the voltage regulating works as stated in the VFD AT1-4000X manual. Thanks for sharing this video - great value! 😄
My vfd which looks exactly the same doesn't have anything in the instructions referring to p025. The default seems to be set at 0 and when I change it I don't notice any difference? What's up with that?
STEVEJORDAN, Does your DVM meter need a VFD filter to measure the VFD motor voltage and frequency? why does the VFD cause noise and interference issues?
Hi Shaun if you go on my TH-cam community page tab, scroll down the page you will find a PDF file containing the instruction manual for the vfd with all the parameters. Regards Steve
Hi Steve. Many thanks for the video and it will help greatly with my Myford conversion. I think I have probably made one error in that I ordered a TaperLock pulley the same size as the original on my machine (approx 2") , but now find that with this size the TaperLock pushes the groove much closer to the motor and may give me a problem with alignment. Consequently, could you advise what size pulley you used and has it limited the speed range at all? Thank again.
Hello Steve, I really enjoy watching all your videos, very informative and so enjoyable, this article got me interested in VFD's, I have a 240Volt single phase ac induction motor on my lathe it is 1/2 HP 1480 RPM and I would love to control the speed with a potentiometer, but I don't know which VFD Controller to buy, could you point me in the right direction please as I am really confused as to which one I should get, there are so many of them. Thanks for your advice, cheers from magicbytes. :)
While there are VFD for single phase output, they’re rare. Generally, you need to buy a three phase motor and VFD. Just look for a single phase output VFD with 220-240 volt output. Obviously, at least 1/2 Hp. You can use a bigger one if that’s all you find for single phase output. Make sure the input is 240 volts if that what you’re going to plug it into. Most single phase output VFDs have 120 volt input. But if this is an older motor, say more than 25 years old, you can’t run it at anything other than the nominal frequency without damaging the motor long term. Actually, if the motor is older than 10 years that’s likely true. Good luck.
Hi Steve - great video, I was just wondering if you think this would be a good set up to use with the original Crompton Parkinson half horsepower three phase motor that came with my Myford ML7? It states: volts star 380/440. Volts mesh 220/254.
Crompton Park were decent motors and it sounds like it can be connected in Delta for 3 phase, 240V, so should be doable. Just remember that you may need to uprate the motor cable as it will draw more current in the Delta configuration.
Hi Steve, just wondering have you connected the switches and the potentiometer ? if so I would appreciate some information on the type and size of the pot and also the wiring diagram for the switches, will you be doing a u-tube in the near future on the subject?RegardsNick
Thanks for video Steve. Would you confirm size of pulley, please.? 50mm taper-lock pulley (similar size to originally fitted) makes positioning motor extremely difficult, because V groove is too near motor. Also what thickness packing strips under motor?
I'm not sure now. I did the video s long time ago. I would have to take all the guards off to find out again. I thought I put links on the comments section. I will check out my book later to see if I wrote it down.
@@SteveJordan Smallest I can find to avoid offset to V groove (Style S3) is 67mm OD which give 34% speed increase. I suppose the VFD will compensate for this.
@@SteveJordan Steve, I have looked at video again and at one point you hold up the pulley and I can just about make out "67/1" I think it is more likely to be the 67mm pcd rather that the 63mm pcd one which is 67mm OD.
Thats a great video. 👍 I was wondering what the lowest usable speed is, where it still makes decent torque at the motor? That would be good for using a thread tap on a milling machine etc where you need about 1 rev per second.
Hi I have this inverter running a 3 phase motor compressor. My problem is when compressor reaches pressure drive stays supplying 50 he any ideas how to wire it so that it ramps up and down from relay or pressure switch control.
Hi Steve, do you think there's a problem if i leave the orientation as star? I say that because the motor i'm going to power is out of reach and it would be problematic for me to change its orientation.
Hi Steve, I have just purchased a Meddings 3 phase pillar drill and was wondering what make of vfd would you advise me to buy now you have had the experience with them? I also would like to get my very first lathe, and was wondering which make / model you would advise me to buy. Thanks Jez
Hi Jez, sorry for the late reply. I have only had experience with the Chinese VFDs of which I have two. So I don't know what is the best to buy. The same with the lathes, there are so many on the market now, I wouldn't know what to choose. Regards Steve.
Hi do you get the full power capability of the motor using an inverter or are you only getting 240 bolts worth of 3 phase power ( performance) from the motor. Thanks great video
@@SteveJordan so would the answer to my question be that when putting 240 volts through an inverter to a 3 phase motor be that I would only get the performance of 3 phase 240 the inverter doesn’t ramp it up to 415 volts to give you maximum performance from your motor?
Hi steve just read motor manual 3.7 cabling and electrical connections. They are for thermisters or other auxiliary devices. Just something to think about.
I have seen others use them on CNC mills. It just has to be 3 phase I don't think it has to be dual voltage although I'm not an expert in electronics though.
@@SteveJordan thanks. The other thing I'm curious about is a cnc mill would be running several motors at the same time, so perhaps one setting wouldn't work. I really want to find out as its make or break whether I can set up a small workshop with only single phase supply.
I need to converter either DC or unstable AC to 3 phase 50 Hz. Could go DC motor connected to DC to AC inverter (same as solar panels). After prototype want production model of 50KW minimum.
Question: Is 'N' the equivalent of L2? My input 220v wire has Earth (bare copper), Neutral (white), L1(red) and L2(black). With only three input connection terminals on the VFD, I'm puzzled as to what goes where. Thank you!
Hi Steve, hope your well. I have bought a myford ML7B with a three phase motor and bought this inverter after seeing your video. I have it all wired up and the motor turns but only on approx 1/3 speed on the inverter “knob”. Anymore or less and the motor will not turn? Any advice would be greatly appreciated. Keep up the good work. 👍
Hi Dave, Thanks. If I remember rightly you may have to increase the Maximum Operating Frequency. Parameter P06. The default setting is 100. So try increasing it by about 50. Then test the operation again. I had to decrease mine to 50 to make the spindle RPM have a maximum speed of about 1160. On the Myford ML7 you shouldn't go over that speed with the old type of bearings. Regards Steve
Hi Steve, tried amending parameter P06 as you suggested but no joy, the motor spins up nicely as before but as soon as I “drop” the clutch it stalls the motor. The motor appears to be in star delta could that be the cause of the issue?
If it's not stated on the motor data plate, you can effectively tell just by its speed at 50 or 60 hz - most often, two pole will be ~3000 to 3500 rpm, and four pole ~1500 to 1750 rpm. Should you find a six pole, it will probably be ~1000 to 1200 rpm. RPM is basically just a function of input frequency and number of poles.
Hello, i have a Problem. The voltage between the Output U,V,W is different. Between U and V there are 250V, between V and W there are 85V and between W and U are 110V. Why is that?
Hello Steve, This is a very informative video. I've got one of the AT1s (4 kW from Banggood). Can I in anyway use it for a 415 Volts rated motor, or alter it to AT2? Thank you
Hey Steven if the desired continuous speed setting is 1000rpm and the moter is at a max at 1000 rpm do you recommend a moter with more rpm to be more stable? Thanks jason
Hi, nice usefull video, I have a question: I have a three-phase asynchronous motor, it is a double speed, I would like to know if the 2 kW version of the VFD device is the right choise, using the lower absorption connection (the low speed one). The engine is mounted on a wood lathe. The motor Infos: V: 380 50 hz CV: 1.5 / 2 kW: 1.1 / 1.5 Rpm: 1400 / 2850 A: 3 / 3.6 Note: the first values are referred to lower speed, the second one are for the high speed. Thanks, Giuseppe.
Hi Yes I'm sure it is. I use mine on a lower kW motor and it works fine. In fact I think you can use any kW version as long as its higher than the kW needed. My motor is only 0.75kW
@@SteveJordan thanks for reply, I check my motor and It don't permit the tringle connection for 230V input, It Is a 380 only double speed item. I must change motor before. (In my home I have only 230v and need the VFD as three phases inverter and speed controller for lathe). But thank you, reading your note I can understood that the VFD works, and will be the right solution for my lathe.
I hope someone can help. Great video. I’ve purchased the same AT1 model. I’ve connected single phase 230v and UVW wires to motor, having rewired fro star to delta a connection. When I apply power to unit there is no response, no indication on display. I’ve checked and confirmed 230 v at the L-N terminals. I can’t see any external reset buttons etc. I’m presuming I don’t need to make any connections at the 12 point small terminal strip. Maybe I just have a dud unit. Has anyone any advice?
SEE THE BANGGOOD 220v VFD INVERTER BUYING LINK BELOW:-
2.2kw 220V Single Phase Inverter -- goo.gl/ZNYHxf
Wholesale Power Inverter -- goo.gl/i5LyXt
ALSO SEE SOME GREAT OFFERS ON NEW DRILL BITS:-30% off Drill Bits Promotion -- goo.gl/KrG3Wh (code: 266b22 )
Mid-year Mechanical Parts Sale (up to 80% off) -- goo.gl/BhBHhw
TAPER-LOCK MOTOR PULLEY . SPZ67-1108.
TAPER-LOCK BUSH 1108-19mm.........(To fit the 19mm motor shaft).
yeah these idiots totally arent bots
Sir is this inverter can work by timing for example I'll sett timing in 10 seconds working and then 5 seconds rest and then working 10 seconds then 5 seconds rest ?? Is this possible??
This video is priceless to me. I have just purchased the same make of motor, but 2.2Kw, and the same inverter for a 2"x72" belt grinder build. I'm clueless about electrickery and this is like a video manual. Thanks Steve for taking the time to offer such thorough instruction, and for making no assumptions about what people know of a subject. Worth its weight in gold .
Thank you Lindsay - I’m keeping the original .5hp, and will look to use the .75kw inverter (1hp).
I am new to the ML7, and find your videos absolutely spot on for a novice like me!
Taperlock is a great system, I've used it for a good few years and it comes with a huge variety of fittings. It's not the cheapest system but it is the best.
Hi Steve
Once again many thanks for the video.
Was going to buy one ready made.
But the well known company kept lying to me.
They were supposed to In stock clearly weren't and kept lying to fob me off giving them time to get one made three weeks later.
See your videos and have ordered exactly the same set up you have.
At a fraction of the price of the one I was trying to buy.
Stay safe keep them excellent videos coming
Hello Steve,
very nice informal explanation, easy to understand what you are describing .so the layman can understand what had to be done and in sequence.very nice thank you for sharing.
This is absolute one of my favorite videos at the moment. So instructive and interesting. I can see it on and on again.
All the comments here arew Spot ON!!! Thank you for your fantastic efforts. It takes the unknown out of programming too!
Hi, Thanks for watching and for your encouraging comments. Regards Steve
Brilliant Steve, many thanks for posting. I think this is the perfect setup for my Drummond round bed, looking forward to your Myford video!
Another great video and just in the nick of time. I was on my way this morning to Newton Tesla in Warrington to buy a kit like this for my ML7. I think I may hold off and see you make your control panel. Many thanks.
Thanks for this video. I was about to buy a 1.5 kw version of this VFD for £65 on eBay. Now I can have a 2.2 kw VFD AND change for the same price!
Converting old 3 phase machines to run on Inverters from a single phase supply has become popular, but the VFD needs to be correctly set up to protect the motor, and the Delta connected motor will draw more line current, so the motor cable may need to be uprated. Also, old motors may have degraded insulation and fail when supplied by VFD.
And finally and most importantly, make sure the motor has a good Earth connection to the supply.
Very informative video, Steve.
I discovered those pulleys some 15 years ago, and have used that type ever since.
Hi Ulrik...Thanks, Yes now I have found them that is all I will use in future. They are such a brilliant design.
@@SteveJordan do you have a link to the pulley you purchased, thanks
I have been contemplating these setups for a while now; great to see you successfully implementing them. Very helpful.
Hello mate I have bought this vfd and it had no instructions with it, would it be possible for you to email them if you have a copy,
Thank you
Luke
Hi Luke, If you click on my TH-cam community page tab and scroll down the page you will see the instructions in pdf format you can download or copy. Regards Steve
You should connect the motor small blue thermal overload wires to the VFD auxiliary connection terminals to stop the VFD when the motor overheats?
Brilliant steve just ordering all parts now. Something do on lockdown.
Really great video and review, thank you
Steve,thanks for this highly informative video. I had wondered about the TEC motors seen on fleabay. Now I can see they're quite good. I have a Harrison L6 lathe and Alba shaper I am intending to convert to VFD drive. Also good to know the Banggood VFD unit looks reliable. Thanks again, Howard
waooo, l really love this lesson.
Tnks soo mch Boss
Steve, the Tapered Sleeve Pulley is new to me. I love it!
Thanks for the vid and the info!
Wakodahatchee Chris
Hi mate thanks for the video really helpfull whenever I can't sleep I just put this on ; )
An excellent video, thank you. Very clear and thorough.
Just ordered mine tonight, thanks for sharing. Cheers
Do you need frequency inverter?
A very thorough explanation. Thanks Steve!
Oh, I was looking at one of those online the other day, I believe. A thoughtful feature was the Aluminum frame and armature, I believe. The savings in shipping should be substantial and the aluminum should keep it cool. Quality appears excellent as with the included pulley
Those taper locking pulleys look like fun to make. Should be adaptable to making various cog belts too particularly in aluminum!
Steve Hi, you ref the Taper Pulley which provides a greta solution, would you be able tp provide the link where you purchased this also for the Motor used please
Hi Steve
I did the same on my old Syderic drill press.It’s a very good upgrade for a low price.
Very useful thanks. I'm thinking of buying exactly the same TEC motor and VFD combination. Cheers
Thank you, this really helped me to understand the VFD.
Excellent educational video
Great video Steve very informative thanks for sharing brother keep up the good work 👌🏻👍🏻
Thanks for that I brought same vfd
I need one of those pulleys for my S7. It's pulley is always working loose on me!
The power braking on a VFD is great especially if you are cutting threads in metric. You need to watch out the chuck doesn't unscrew itself though!!
Obviously a bit late now, but check your junk yard for 3 phase motors. I've found a couple of good ones at mine! There's really nothing that can go wrong with them other than a worn out bearing which is an easy fix.
we have VFD inverter
we produce the aluminum housing motors single phase or three phase
if you need,then we can supply .
Looking forward to seeing the control panel 😀. Cheers
The AT1 is for 220V or dual voltage 3ph motors, I made the mistake of getting this model, but I had to return it. I believe I need the AT4 model for connection to 380V motors, in the black casing, as my motor is 415V
Mr. Jordan, nice video I'm trying to locate a motor it shows (no longer made) I'm from the US I'm assuming any 3-ph 1hp 4-pole motor 1740 rpm should work I have a drill-mill which is what I want to convert. I'm somewhat concerned if I will keep enough torque depending on the pulley? They show the VFD inverter on eBay at $118.00 dollars. Also, I like the dial gauge set-up for the quick change.
Is there any way of getting hold of these instructions? I have lost mine
Hi I have put the instructions in a pdf file on my TH-cam community page. Just click on the community tab and search that through for the link. The pages may not be in order but the instructions are all there on the link. Regards Steve
Steve Hello. I see that the 3 phase motor is then connected wired to the inverter...Does this then mean the inverter is then wired to a 3 pin plug. So that normal house electricity via a 3 pin plug powers the inverter..thus the inverter then supplies electricity to the 3 phase motor ?
Thank you...
Hi James. Yes that is how it works. Regards Steve
Thank you for doing this video. Sure is interesting and I like the reversing....how nice!
Great video, can the pulley system be used without a key way?
thanks for review!!!i buy one today!!!hope works good for my mill
Great video, thank you very much. I just bought a ML7 and I'm also considering to change the motor and add a VFD. But I have one question, now that you can change the speed using the VFD, so you still use the belt and Pulleys to change the speed?
Hi, Thanks. Yes, I still change the speed using the belt and pulleys. Especially onto the lower speed range as it gives extra spindle torque for large hole drilling etc. Regards Steve
@@SteveJordan Great thank you
@@SteveJordan
If it's an induction motor do not use speed control on vfd or u'll damage motor, program the vfd to run motor at full speed going by the info on motor plate. Constant induction motors need to run full. 1 person said to use heavier wire when set to delta 3 phase as it uses more current. It doesn't, it uses less and that's why 3 phase is used commercialy because the electric is divided into 3 live wires instead of 1 and u get alot more power from less current
I lost 😞 how do you power the inverter? I looking to power a 18hp 220v 1500rpm motor can you give me any advice???
hi Steve, thanks for your videos. What happened to the old motor? It looked and sounded like the motor on my ML7 which was made by Hoover in Scotland. Did it give up?
Hi Gary, yes the old one was getting really hot. The wiring was breaking up. It was the Hoover one. Regards Steve
Sir can inverter setting only suply power v380 wihout anather funtion..
If a motor that works only on 380 volts is connected to a suitable inverter (220 volts input, 380 output)...
will the motor run at its full efficiency without decreasing torque or speed? Thanks!
Hi Sorry I don't know the answer to your question. I am not an expert in electronics. Maybe someone else reading this can answer your question.
Yes
So can this be used on single phase home electric without any issues
What happens if you have a neutral in the 3 phase motor thanks
Another great video thank you. I have just purchased an ML7 and your channel has been a god send. Do you have a link for the motor please.
Thanks Steve for this video
I know that it is relatively older now but I used the information to do a similar thing and it worked perfectly.
Great content. Well done.
How to setting inverter mode input signal from mainboard machine ? and control speed from mainboard .
Hi I show this on the Chinese Mini Lathe video. Connecting the inverter to the lathe panel
Do you have delta links on the motor?
Thank you Steve, this was very helpful and interesting.
Great video Mike, I’ve just bought one for my lathe. Was looking at purchasing a Newton Tesla control pendant. Do you know if this inverter supports whats referred too as '3-wire' control - or self-latch - to work with the momentary start/ stop pushbuttons?
Hi I don't know about that. I have wired one of mine up with the auxiliary control so that I can use the start/stop and foward/reverse on the lathe, but that's all I know about them.
Hi Steve - would the same motor work on an ML7-R? I know next to nothing about electronics but have located the parts you've used and think I can follow your excellent guide, but wonder if that motor will work for our lathe - and if so, would I need to select the 2 pole version of the motor, as it has a faster top speed? Thanks, Chris
Hi Chris. Yes, this setup would be good for your lathe. I only know basic electronics and have just followed the diagrams and what others have done online. In the first video on the connection of the motor, I had it set wrong, but it wasn't something that could damage the motor. It's worth reading the comments on some of the videos. I didn't go for the 2 pole as I never use any speeds above 1,100 rpm. I don't actually know about the difference in the different pole versions, only that the one like you said is faster. It maybe worth finding out about it from someone who knows. Regards Steve
@@SteveJordan Many thanks for the reply, Steve - I really appreciate it and will double check, as you say. And we're really enjoy watching your videos as we learn to use the lathe, thank you! Chris
Hi Steve. I own the same VFD like you. I have a bench lathe with a three phase motor, 1.1Kw and 1400 rpm. I would like to install a brake resistor, because I need the lathe stopping very quickliy and I don't want to damage the motor. Do you know if this VFD can install a brake resistor? If so, do you know the proper value and where and how wiring the brake resistor? Thanks in advance and best regards.
Hi, no, I don't really know if it has. Regards Steve
How can I get more torqe on the low speed? I just cant understand the parameter in the manual. If I adjust P72 the motor get a bad noise
Thanks very informative, learnt a lot from this.
Hi Steve! Have You tried to lower the voltage output from the VFD? I have this universal brushless 195V washing machine motor, I want to use on a circulation pump on my plating tank setup. I'm just wondering if the voltage regulating works as stated in the VFD AT1-4000X manual.
Thanks for sharing this video - great value! 😄
My vfd which looks exactly the same doesn't have anything in the instructions referring to p025. The default seems to be set at 0 and when I change it I don't notice any difference? What's up with that?
STEVEJORDAN, Does your DVM meter need a VFD filter to measure the VFD motor voltage and frequency? why does the VFD cause noise and interference issues?
Where could I find the chart with all the parameters for the VFD?
Hi Shaun if you go on my TH-cam community page tab, scroll down the page you will find a PDF file containing the instruction manual for the vfd with all the parameters. Regards Steve
Is the yellow cable the power cable that gets plugged into an outlet & the black cable is wire to the motor?
Can you tell me the model of the motor if you said it in the video I missed it
I have the same chinese inverter, can I wire a kick estop into the inverter ?
Hi Steve. Many thanks for the video and it will help greatly with my Myford conversion. I think I have probably made one error in that I ordered a TaperLock pulley the same size as the original on my machine (approx 2") , but now find that with this size the TaperLock pushes the groove much closer to the motor and may give me a problem with alignment. Consequently, could you advise what size pulley you used and has it limited the speed range at all?
Thank again.
hi Steve , im after a extension cable/ribbon for the control panel for this inverter wondered if you know where from? keep up the good work 👍
Hello Steve, I really enjoy watching all your videos, very informative and so enjoyable, this article got me interested in VFD's, I have a 240Volt single phase ac induction motor on my lathe it is 1/2 HP 1480 RPM and I would love to control the speed with a potentiometer, but I don't know which VFD Controller to buy, could you point me in the right direction please as I am really confused as to which one I should get, there are so many of them. Thanks for your advice, cheers from magicbytes. :)
While there are VFD for single phase output, they’re rare. Generally, you need to buy a three phase motor and VFD. Just look for a single phase output VFD with 220-240 volt output. Obviously, at least 1/2 Hp. You can use a bigger one if that’s all you find for single phase output. Make sure the input is 240 volts if that what you’re going to plug it into. Most single phase output VFDs have 120 volt input.
But if this is an older motor, say more than 25 years old, you can’t run it at anything other than the nominal frequency without damaging the motor long term. Actually, if the motor is older than 10 years that’s likely true.
Good luck.
Ok I will look into that, thanks for your time replying to my post, Cheers from me.😀@@melgross
Fantastic thanks 🙏
Good video Steve do you know how to increase the torque Regards
Hi Steve - great video, I was just wondering if you think this would be a good set up to use with the original Crompton Parkinson half horsepower three phase motor that came with my Myford ML7? It states: volts star 380/440. Volts mesh 220/254.
Crompton Park were decent motors and it sounds like it can be connected in Delta for 3 phase, 240V, so should be doable.
Just remember that you may need to uprate the motor cable as it will draw more current in the Delta configuration.
Hi steve don't, suppose you have a link for that 3 phase motor, thanks.
eBay item number:114401319441
The ebay item number is above I chose 3 phase 1HP (B3 Foot mount) 4 Pole 1400PM
www.ebay.co.uk/itm/HIGH-QUALITY-3-PHASE-ELECTRIC-MOTOR-1400RPM-2800RPM-960RPM-THREE-PH-400V/114401319441?hash=item1aa2d99a11:g:PWQAAOSwWeZfWfrM
Nice video Steve, learned a lot from it. Keep it up please :)
Hi Steve, I have looked for this motor and can not find it. Can you post a link here.
My search contained Motor TEC, 1-Hp, 3-Ph, IP55
www.ebay.co.uk/itm/0-75-Kw-Electric-Motor-1400rpm-4-pole-240V-Single-Phase-1-HP-Electric-Motor-/192655561587?mkcid=16&mkevt=1&_trksid=p4429486.m46890.l6249&mkrid=710-127635-2958-0
Hi Steve, just wondering have you connected the switches and the potentiometer ? if so I would appreciate some information on the type and size of the pot and also the wiring diagram for the switches, will you be doing a u-tube in the near future on the subject?RegardsNick
Does the relay output work? I've set P51 to 20 but the relay doesn't actuate. I'm trying to wire up a start/stop circuit
Can I use the 1.5KW inverter to control a 0.37KW motor?
Yes you can.... Regards Steve
Thanks for video Steve. Would you confirm size of pulley, please.?
50mm taper-lock pulley (similar size to originally fitted) makes positioning motor extremely difficult, because V groove is too near motor.
Also what thickness packing strips under motor?
I'm not sure now. I did the video s long time ago. I would have to take all the guards off to find out again. I thought I put links on the comments section. I will check out my book later to see if I wrote it down.
@@SteveJordan Smallest I can find to avoid offset to V groove (Style S3) is 67mm OD which give 34% speed increase.
I suppose the VFD will compensate for this.
@@SteveJordan Steve, I have looked at video again and at one point you hold up the pulley and I can just about make out "67/1" I think it is more likely to be the 67mm pcd rather that the 63mm pcd one which is 67mm OD.
I will have a look later today to confirm the size
Thats a great video. 👍
I was wondering what the lowest usable speed is, where it still makes decent torque at the motor?
That would be good for using a thread tap on a milling machine etc where you need about 1 rev per second.
Hi I have this inverter running a 3 phase motor compressor. My problem is when compressor reaches pressure drive stays supplying 50 he any ideas how to wire it so that it ramps up and down from relay or pressure switch control.
Hi David, I really don't know. I only have basic electronic knowledge. Maybe some else will see your comment and give an answer.
Hi Steve great videos, what cable did you use 4 core or 5 core?
Hi Steve, do you think there's a problem if i leave the orientation as star? I say that because the motor i'm going to power is out of reach and it would be problematic for me to change its orientation.
Hi I really don't know as I only know about basic electronics. Maybe someone else can answer your question on here. Regards Steve
Hi Steve, I have just purchased a Meddings 3 phase pillar drill and was wondering what make of vfd would you advise me to buy now you have had the experience with them? I also would like to get my very first lathe, and was wondering which make / model you would advise me to buy. Thanks Jez
Hi Jez, sorry for the late reply. I have only had experience with the Chinese VFDs of which I have two. So I don't know what is the best to buy. The same with the lathes, there are so many on the market now, I wouldn't know what to choose. Regards Steve.
Hi do you get the full power capability of the motor using an inverter or are you only getting 240 bolts worth of 3 phase power ( performance) from the motor.
Thanks great video
It's 240 volts but the motor I bought is also 240v designed to be used with inverters.
@@SteveJordan so would the answer to my question be that when putting 240 volts through an inverter to a 3 phase motor be that I would only get the performance of 3 phase 240 the inverter doesn’t ramp it up to 415 volts to give you maximum performance from your motor?
Can you increase a little bit more the rotations of the motor? The motor has 2890rpm, can you increase at 4000rpm with this converter?
Hi steve, Being the inquisitive type,what are the 2 small blue wires with cable connectors on for ? Thanks for reply
Hi Alan whereabouts are those wires with the connectors?
@@SteveJordan hi steve in the juntion box on the motor.
Hi steve just read motor manual 3.7 cabling and electrical connections.
They are for thermisters or other auxiliary devices. Just something to think about.
Great video. Could I use this to run a 3 phase cnc mill? Does the motor have to be dual voltage?
I have seen others use them on CNC mills. It just has to be 3 phase I don't think it has to be dual voltage although I'm not an expert in electronics though.
@@SteveJordan thanks. The other thing I'm curious about is a cnc mill would be running several motors at the same time, so perhaps one setting wouldn't work. I really want to find out as its make or break whether I can set up a small workshop with only single phase supply.
I need to converter either DC or unstable AC to 3 phase 50 Hz.
Could go DC motor connected to DC to AC inverter (same as solar panels).
After prototype want production model of 50KW minimum.
Question: Is 'N' the equivalent of L2? My input 220v wire has Earth (bare copper), Neutral (white), L1(red) and L2(black). With only three input connection terminals on the VFD, I'm puzzled as to what goes where. Thank you!
Excellent video. Very interesting.
Do you interested in frequency inverter?
Hi Steve, hope your well. I have bought a myford ML7B with a three phase motor and bought this inverter after seeing your video. I have it all wired up and the motor turns but only on approx 1/3 speed on the inverter “knob”. Anymore or less and the motor will not turn? Any advice would be greatly appreciated. Keep up the good work. 👍
Hi Dave, Thanks. If I remember rightly you may have to increase the Maximum Operating Frequency. Parameter P06. The default setting is 100. So try increasing it by about 50. Then test the operation again.
I had to decrease mine to 50 to make the spindle RPM have a maximum speed of about 1160.
On the Myford ML7 you shouldn't go over that speed with the old type of bearings. Regards Steve
Steve Jordan thanks Steve. I will test tonight and let you know. Much appreciated.
Hi Steve, tried amending parameter P06 as you suggested but no joy, the motor spins up nicely as before but as soon as I “drop” the clutch it stalls the motor. The motor appears to be in star delta could that be the cause of the issue?
Hi Steve, great video, did you make the control panel yet?
Hi Lee no I'm just using it as it is at the moment. I may get round to it sometime, but I'm booked up with other things at the moment
great video if you get an old motor how would you know how many poles it is
Hi Thanks, I really don't know about that. I only have basic electronic knowledge.
If it's not stated on the motor data plate, you can effectively tell just by its speed at 50 or 60 hz - most often, two pole will be ~3000 to 3500 rpm, and four pole ~1500 to 1750 rpm. Should you find a six pole, it will probably be ~1000 to 1200 rpm. RPM is basically just a function of input frequency and number of poles.
A single [hase motor has L N E. A 3 phase has U W V or something like that
Hello, i have a Problem. The voltage between the Output U,V,W is different. Between U and V there are 250V, between V and W there are 85V and between W and U are 110V. Why is that?
Nice video!! Small question. Does the motor lose power at lower speeds??
You should try your machine with a servo drive, that's when it gets real interesting.
Hello Steve,
This is a very informative video. I've got one of the AT1s (4 kW from Banggood). Can I in anyway use it for a 415 Volts rated motor, or alter it to AT2?
Thank you
Hi I don't think you can. You have to buy an appropriate VFD for the voltage. As to the AT2 I really don't know. Regards Steve
@@SteveJordan Thanks Steve.
Hey Steven if the desired continuous speed setting is 1000rpm and the moter is at a max at 1000 rpm do you recommend a moter with more rpm to be more stable? Thanks jason
Hi Jason I think it will be ok at 1000. It should be stable anyway if the motor is rated at that speed. Regards Steve
@@SteveJordan thanks Steven
Hi, nice usefull video, I have a question: I have a three-phase asynchronous motor, it is a double speed, I would like to know if the 2 kW version of the VFD device is the right choise, using the lower absorption connection (the low speed one). The engine is mounted on a wood lathe.
The motor Infos:
V: 380 50 hz
CV: 1.5 / 2
kW: 1.1 / 1.5
Rpm: 1400 / 2850
A: 3 / 3.6
Note: the first values are referred to lower speed, the second one are for the high speed.
Thanks, Giuseppe.
Hi Yes I'm sure it is. I use mine on a lower kW motor and it works fine. In fact I think you can use any kW version as long as its higher than the kW needed. My motor is only 0.75kW
@@SteveJordan thanks for reply, I check my motor and It don't permit the tringle connection for 230V input, It Is a 380 only double speed item. I must change motor before. (In my home I have only 230v and need the VFD as three phases inverter and speed controller for lathe). But thank you, reading your note I can understood that the VFD works, and will be the right solution for my lathe.
I hope someone can help. Great video. I’ve purchased the same AT1 model. I’ve connected single phase 230v and UVW wires to motor, having rewired fro star to delta a connection. When I apply power to unit there is no response, no indication on display. I’ve checked and confirmed 230 v at the L-N terminals. I can’t see any external reset buttons etc. I’m presuming I don’t need to make any connections at the 12 point small terminal strip. Maybe I just have a dud unit. Has anyone any advice?