Solderer to pin 4 on the inside.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Solderer to pin 4 on the inside.
Sent from my SAMSUNG-SM-N910A using Tapatalk
I'd like to know what is wrong with the input wiring. I'm really trying to learn so rather than just ask you outright I'm trying to figure it out myself.
I'm using 14 guage wire. It's coming off a 20A circuit so I suppose the code might require 12 gauge, but the spindle is rated for 8.5A so I think it's ok.
Wire coloring. I'm using standard 14/2 wire but colored one wire red so I'm not using a white for a hot lead.
The bare ground is connected to the ground terminal.
There are three input terminals: R, S, and T. I am using R and S but I think the code might require that R and T is used. This is where I think the problem is.
Rick
rickzva
There is no code related to R- S- T Terminal Connection, R and T on these VFD Drives gives a better balance, some manufacture will say which Terminal you should connect use for single Phase connection
The cable you are using, Romex cable, is fine for in wall wiring, but is not suitable for wiring anything like this, you used a good cable for the VFD to Spindle connection, the input should be treated the same way, it does not have to be shielded but it should be a quality cable of the right Gauge, there are other ways the supply power can be wired to a VFD, but most use a suitable cable
The input Amps can be more than double of what the output is needed for the spindle, so it could go as high as 17 amps, if your spindle is 8.5A, your 14G wire would be under what is required, you have a 2.2Kw Spindle the amps would be 10A amps at 220v, 9A if you use 240v if you don't set the VFD Parameters correct
Mactec54
If I'm not mistaken R=L1, S=L2, T=Neutral(White)
Nicolas
No Neutral is not used if you are using 240v in NA, if you connect Neutral when using 240v in NA you will damage the VFD, Only ( 2 ) Input Terminals can be used for Single Phase
For 120v Single Phase you will have ( 1 ) Hot L1 wire a Neutral and Ground R=L1 Hot T= Neutral ( E ) Ground/Earth
For 240v Single Phase you will have ( 2 ) Hot wires L1 and L2 and a Ground R=L1 Hot T=L2 Hot ( E ) Ground/Earth
This is how it is for North America
Other countries use different voltages, from 200v 220v 230v, for Single Phase, there connections have ( 1 ) L1 Hot wire a Neutral and ( E ) Ground, there connections for this VFD would be R=L1 Hot T=Neutral ( E ) Ground/Earth
Mactec54
Rick, where did you attach the other end of the wire you solder to the fourth pin?
I have attached some pictures of the work I did (I had no green color heatshrink sleeve so I used red). Checking continuity now I have a ground between pin 4 and the body of the spindle. The screw holding the ground wire could not sit properly because the underside of the spindle cap is cone shapped so I wedged the ground terminal to the conned surface and tighten as much as I could. Later I will connect the water pump again to check if I have any leaks
Nicolas
You guys seriously are making this way to difficult. Shouldn't make more that 10 min tops. Yea that is done correctly.
Sent from my SAMSUNG-SM-N910A using Tapatalk
discojon you must be a genius LOL, but my fingers are too big for such a job plus my soldering skills not the best around. I hope it will hold the way I did it
Anyway your idea was top notch!
Nicolas
I know a neutral is a return path, it seems you just parroted that from my post.
My next question my help other DIYers in NA that had there home built before the 90's and the neutral is used as a ground for 220 volt. What's your suggestion for wiring there VFD? New service?
You are starting you BS again, you asked the question, check what you posted, here is what you posted, ( If using the same connection for 110v than this will require a neutral on one of these connections correct? ) I gave you the answer
Its as simple as to check the code requirements for doing such an install, you will find for it to be legal there electrical system would have to be upgraded
Mactec54
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Hi guys. Gee I am seeing a debate about simple wiring and not so much about the many parameters the VFD holds. These parameters and setting the unit up are the discussion in this thread are they not?
I believe if one is unable to wire up the input and output of this unit they should probably get someone in who can, in the matter of safety? Yes? Far out!
But what I did want to say, was the fact I have a Huanyang Chinese unit and a 2.2kw air cooled spindle. I have used it for way over its duty cycle at times, cutting dry, alloys, steels, hard-woods (which are rougher than metals), and have absolutely no issues. The setup is fantastic at a DIY price. In fact I am running a business with my router. I am pleased I bought it.
Regards Boyd
I have used R & S for these VFD's have not found any difference between using any combo.
The manual say the 'If single phase The source meets two Wilfully' what ever that means, I believe it means pick any two!! when translated from the Chinese, just about all the Utube videos showing running and setting up show many users using R&S.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
You amps should be much higher when running on 120V try to increase 120v=12.5a for 1.5Kw, so try it at 10 amps and see if it is any better, you can expect it to drop in RPM if you are taking to big a cut, try with lighter cuts to find the ideal running without the drop in RPM, more torque can be added but this would be a risk you would be taking
Mactec54
I'm using this for a different application, not a CNC which it seems like it would work fine for.
So, turns out I will not be able to hold a specific rpm regardless of load. I don't fully understand it but it has something to do with the fact that this spindle motor is an induction motor and is self commutating. Looks like if you want to be able to control RPM directly you will need a motor with an encoder/sensor. I believe that while this system for most purposes seems to be constant speed, it is actually constant power or possibly constant torque. While spinning at 7k rpm i can slow the spindle down to around 5000-5500 with my fingers (not recommended!).
Thanks for everyone's help in this forum though. I would not have gotten this far without your comments. You guys saved me from most of the headaches from this VFD.