Teco VFD Help!

T

thefalconer_88

Joined
Mar 15, 2015
Messages
15
I know what you all will say, you should have bought the KBAC 27-d!

Well, I didn't, I bought the teco model#JNEV-202-H1

Just wondering if anyone has a good drawing of a wiring diagram for this with a 2 hp 3 phase motor? My motor has 12 wires instead of 9 which is what is confusing me this far and also there is no terminal in the "L2" opening on my vfd. If anyone can point me in the right direction I'd greatly appreciate it.

I should mention that I'm using 220v to power this combination.

Thanks!
 
There should be a wiring diagram on the motor casing. This should tell you how to configure the links for the appropriate voltage.

From the Techtop website, it looks like there is only the one wiring diagram for 12-wire motors running on 230V, but double check and then check again: it's you and yours on the line.

http://www.techtopind.com/new/admin/infofiles/attach/2012-04/Y1333558194.pdf

The L2 terminal appears to be there for the 3-phase input variants of the drive. It is not used on the single-phase versions and you can ignore it. Just connect to L1 and L3. See page 6 of 69 in:

http://www.tecowestinghouse.com/manuals/ev_operating_manual.pdf
 
For any how do I wire a motor question, the first answer is; post really good photos of all the data plates on the motor
 
Here's how I did mine just for your reference. I can't say if it will work for you motor.



--nathan
 
I get the VFD wiring for the most part, It's just what wires from my motor go together? My guess is to join 4, 5, and 6; join 10, 11, and 12; join 2 and 8 (unused L2 lead); connect 1 and 7 to L1; and connect 3 and 9 to L3.

Here are the motor plate pictures...

<iframe class="imgur-album" width="100%" height="550" frameborder="0" src="//imgur.com/a/qi0TE/embed"></iframe>
 
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hope this works
 
..From the google oracle...
""If used on a standard across the line starter, soft start or variable frequency drive, these motors should be wired in the delta (RUN) connection for either high voltage (480V) or low voltage (240V). The only time you should use the wye connection is a wye-delta starter. The final connection of the motor is ultimately the responsibility of the installing electrician. If he has any questions, he should contact his nearest motor specialist prior to energization."

Looks like follow the wiring diagram for 230V run, not 230V start. If you wanted to wye-start the motor (saving startup amperage) you'd need a wye-delta starter, which switches from the wye config to the delta-run config a short interval after starting. Not applicable here, and no need to opt for the wye-start.

Looks like 6-7-12-1-Line, 4-8-10-2-line, 5-9-11-3-line. Your VFD will tell you if it likes that or not, but it sounds right enough to me that I'd hook it up and try it that way if it was my VFD. I do have a TECO VFD, different model though. Never messed with a 12 lead wye-delta motor before...

Oh, and I'm not going to say you should have gotten a KBAC drive... I think they have some drawbacks, especially the whole jumper you have to switch to change horsepower. Gimme a TECO any day.
 
I would use #12 wire, stranded. That will easily handle the amperage, and stranded is nice to work with for hookups. I.e., not a solid copper wire, but a wire made of many small strands of copper. You could tell the hardware store you want "12-3 stranded cable" and buy it by the foot, or buy a 12-3 extension cord and cut the ends off or plug it into itself and cut it in the middle somewhere (sometimes cheaper, and then you can use the plugs in the middle if you want- can be handy to be able to unplug your machine to move it sometimes.)
 
I agree #12 Stranded from Wall to VFD
3 conductors, two power and one ground



You can go down to #14 from VFD to motor
4 conductors, three power and one ground.
 
Its Alive! Well sort of, now i need to progam it! I wired it just as Salem suggested and all is well. Time to re-read the manual!
 
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