Need help wiring VFD

[turboedgs]

I need help determining what input power wires go to on my VFD. The unit I have is a TB Woods SW1. On the top of the unit there are three connection terminals, L1/L, L2/N, L3. So, going to the unit is the 220v which has a red (110v) a black (110v) a white (Neutral) and a green (ground). What terminals do the two 110v’s go to and what terminal does the neutral wire go to, if any?

Unfortunately, the manual is lacking in clarity regarding the input power source and just shows three unlabeled lines going to L1/L, L2/N,L3.

I understand the connections to the motor just need a little help with the power inputs.

Any help would be greatly appreciated.

Thanks

[UUU]

What is the rated input voltage of the unit you have? This manufacturer seems to offer 115V and 240V models.

[mactec54]

turboedgs

Post a photo of the terminals,is there a PDF on the web we can look at as well
The input terminals on some of these drives are easy to get messed up

[Al_The_Man]

Inputting a N.A. neutral into a 3 phase bridge will not do anything, if using 2x 240v conductors.
There will be no conduction on the neutral at all, I believe the reason they show L2/N is when used in countries that use one leg of the 240 as neutral, as in UK etc. or for a 115v version.
I would think that the 240v go into L1 L2 .
Do you have a link to the manual?
Al.

[turboedgs]

Here is the link, the wiring diagram is on page 23 of the PDF

http://www.vacon.com/File.aspx?id=47...&name=DPD00286

On the top of the unit the inputs are labled as L1/L - L2/N - L3 but is not listed that way in the PDF, just L1- L2 - L3

My input power will be single pase 220-240v, black (110-120v), Red (110-120v), White (neutral), Green (Ground).


As to the specs of the VFD:

Input: 220-240v +/- 10%, 50-60hz, 1 or 3 phase
Output: 10.5A, 3.0HP, (2.2kw) 3 phase

Model number is SW1C20030H02

Thanks for the help

[Al_The_Man]

As I mentioned, there is no point inputting a 240v with C.T. neutral if the input is to a 3 phase bridge, most VFD's I have stripped for power supply parts are wired this way, in any case if you just input 240 1 phase to L1 L2 you should not do any harm as it would simulate 2 of 3 phases with the L3 phase missing.
If the unit does accepts 1 phase then from the manual I would hook up the 240v to L1 L2.
Neutral is not connected.
Al.

[turboedgs]

Thanks for all the help guys!

One of the 120v's into L1 and the other into L2 with no nuetral hooked up and the ground connected to the ground post and I have a fully functioning VFD.

Thanks!

[mactec54]

turboedgs

Do it the way Al has said, if you are still not sure give them a call the number is on the PDF file, Do not put the Neutral wire on to your VFD for 220v single phase, (US single phase), or you will have a problem, Cut that wire off before you start

[prifral]

Hi guys. I am inputting a 120v household line into a SW1 and Im a bit confused about which wire goes into the input leads (L1,L2,L3). Any help would be greatly appreciated.

[Al_The_Man]

According to the label with a 1 phase 2 wire input that has a neutral L1/L is hot and L2/N is neutral.
Al.