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Almost done setting up my VFD but...

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Forum topic by Tyrone D posted 06-07-2012 04:44 AM 2962 views 0 times favorited 6 replies Add to Favorites Watch
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Tyrone D

314 posts in 1797 days


06-07-2012 04:44 AM

Hello,
I bought a Teco FM50-203-C from Dealers Electric and am almost done hooking it up. I could’ve been cutting wood if it weren’t for this one problem.
The wires coming from the motor are not labeled in any way. They are all black and it’s not dirt or grease. The problem is partly my fault, in the excitement of making my saw run I tore all the wires out of the magnetic switch. I could’ve figured it out from there…

If I switch the wires around, will it harm anything? If I have T1 where T3 is and T2 where… Well you get the point. The manual says that if the motor is running backwards switch any two of T1, T2 and T3. This makes me think it wont hurt if I have it wrong. I just want to make sure before I break anything.

I also have another question relating to a diagram Richard at OWWM made.

Where it says “Set F10 = 1” how do I do that?

Thanks.

EDIT:
I forgot to mention the wire colours that I have. I doubt this will provide any useful information other than green being ground.
White, Red, Black and Green. This does not match any three phase wiring standards that I found.

-- --Tyrone - BC, Canada "Nothing is ever perfect, we just run out of time."


6 replies so far

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Tyrone D

314 posts in 1797 days


#1 posted 06-07-2012 06:49 AM

EUREKA! It works!
I still don’t have the switch working but I just have to put the wires in the holes and tighten some screws and figure out the functions thing.
I got it first try too.
Now, how do I set the RPM on the VFD?

-- --Tyrone - BC, Canada "Nothing is ever perfect, we just run out of time."

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barecycles

256 posts in 1792 days


#2 posted 06-07-2012 11:37 AM

All your function settings are made on the VFD keypad. I may be wrong but I don’t think you set the RPM on that model, you set the frequency designated by the motor plate data.

Good work getting it running…exciting, isn’t it?!

-- Sweeping up sawdust in Texas

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BreeStephany

50 posts in 1649 days


#3 posted 06-07-2012 04:55 PM

I haven’t used Teco’s VFD interface, but do have a lot of experience with Allen Bradley VFDs, and looking at Teco’s manual, the control interfaces are pretty much the same. All adjustments and programming are done with the keypad on the VFD. As barecycles said, you don’t set the RPM, you set the frequency. There are few options for setting the speed of the motor. You can either set a determined speed you want it to spin at and have the VFD bring it up to speed when you hit the start button, or you can use a speed pot or rheostat to adjust the speed once the start button is pushed. Some VFDs you can set the controller to adjust for load by increasing frequency to maintain RPM, but quickly browsing the manual, I did not see an input for an RPM lead, which your motor may or may not have.

When you program it, be sure to set a 5 – 10 sec. ramp time depending on what its on. The ramp time is the time between 0hz. and your desired frequency. When you hit the start button, the VFD gradually increases frequency until its at the desired speed, rather than sending the motor to full speed instantly. By setting a sufficient ramp time, you extend motor life, but also extend the life of the running gear of your saw. This is all adjustable and nothing is set in stone, so play with it and see what you think works best for the saw.

If you need more information about programming the VFD, or about wiring configurations, here is a copy of the manual – http://igor.chudov.com/manuals/TECO-FM50-Manual.pdf

-- Just a girl with way too many tools.

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a1Jim

115202 posts in 3041 days


#4 posted 06-07-2012 05:04 PM

Well I guess I’m out of the loop here since I have no clue what a VFD or a FM50-203d is .

-- http://artisticwoodstudio.com Custom furniture

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barecycles

256 posts in 1792 days


#5 posted 06-07-2012 05:04 PM

Jim, just a way to run 3 phase motors using single phase power.

Tyrone, just wondering what equipment are you running with your VFD? I have a 3HP, 3 phase Unisaw and I can’t begin to tell you how great it is. Once you get everything programmed the way you want it, I’m sure you’ll enjoy your setup as well.

-- Sweeping up sawdust in Texas

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Tyrone D

314 posts in 1797 days


#6 posted 06-07-2012 07:22 PM

I have figured out that I’m supposed to set it at 60Hz for full power. I’m still unsure on setting the functions but I’ll have to play around with it a bit.

Bree,
The VFD automatically has soft-start enabled and I remember reading in the manual one of the functions adjusts this.

Barecycles,
I am running a pre’63 Wadkin Bursgreen Tablesaw. It’s 2HP but I’m using a 3HP VFD in case that motor ever dies.
The excitement when turning this beast on was… Exciting. According to my blog post I bought my saw 128 days ago and now I finally have it running.
Now all there is left is to buy power twist link belts(Or whatever those fancy red belts are called), reface the fence and make my extension and outfeed tables.
If you want to see pictures of my saw, check out my blog.

-- --Tyrone - BC, Canada "Nothing is ever perfect, we just run out of time."

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