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Just bought a JET 710704K DC-1200VX-CK4 DUST COLLECTOR, 2HP 3PH 230/460V, 2-MICRON CANISTER KIT

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Forum topic by Serrot posted 01-22-2020 11:41 PM 674 views 0 times favorited 9 replies Add to Favorites Watch
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Serrot

6 posts in 34 days


01-22-2020 11:41 PM

Topic tags/keywords: question

As the title states I just purchased a Jet dust collector. I got it off of letgo from a cabinet maker shop. It was a decent price in my opinion so I went ahead and bought it. I want to use it for my garage wood shop. I’m looking for advice on how to hook up 3 phase when you only have 1 phase connections. I read a few post about VFD’s on the forums here. Anyone have any recommendations on which VFD to purchase and how to hook this up? Any help will greatly be appreciated. Thanks!

-- Gilbert, South Florida


9 replies so far

View MrUnix's profile

MrUnix

7714 posts in 2839 days


#1 posted 01-22-2020 11:59 PM

Hardest part of using a VFD is figuring out where to mount it. Not sure if it’s the most efficient way to go though, as a VFD will not buy you anything extra on a DC. Something like a TECO FM50-202 will set you back around $150, so it might be more cost effective to just swap out the motor with a single phase one.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View Lee's profile

Lee

144 posts in 1518 days


#2 posted 01-23-2020 12:40 AM

This is about the cheapest 2hp TEFC 3450rpm 1ph motor I could find at 189$. most are 250$ plus. It’s a 56TC frame 5/8 shaft general purpose motor, will bolt up to the fan housing directly or a separate motor mount, hope this helps.
https://www.amazon.com/Electric-Motor-Frame-Shaft-Single/dp/B01N3B0I42/ref=sr_1_1?keywords=2hp+tefc+motor&qid=1579738603&s=hi&sr=1-1

-- Colombia Custom Woodworking

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clagwell

112 posts in 432 days


#3 posted 01-23-2020 11:39 AM

Many Asian baggers have a non-standard shaft size so finding a replacement motor can be a problem.

To hook up a VFD follow the manufacturer’s instructions. It replaces the existing switch. Setting parameters is another thing entirely. Other forums will be better for those questions.

A VFD on a DC allows you to spin the fan slightly faster to overcome losses in any ducting you add. A 10% increase in RPM gives you about a 20% increase in pressure.

-- Dave, Tippecanoe County, IN

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Serrot

6 posts in 34 days


#4 posted 01-23-2020 11:59 AM

Thank you for the replies so far. I bought the DC for 250 so I don’t want to go crazy and spend more money that would have amounted to just buying a completely different new unit. I just need to research the VFDs a bit more I think. The unit does not have an on and off switch so the VFD switch will help me there I believe. As for placement of the VFD I can just mount it to the wall right next to the DC. I’m currently moving into my new garage shop so I’m still planing out ducting and machine placements. Does anyone know if I need to buy a VFD with double the HP of the DC I have. Saw a youtube video where the individual recommended that. So my DC is a 2hp unit then I would have to get a 4hp VFD? If anyone has insight let me know and all comments are greatly appreciated. Thanks!

-- Gilbert, South Florida

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MrUnix

7714 posts in 2839 days


#5 posted 01-23-2020 12:21 PM

Does anyone know if I need to buy a VFD with double the HP of the DC I have.
- Serrot

No. The TECO L510-202, or the FM50-202 I mentioned above would work just fine. Don’t size based on ‘horsepower’, as that is just a marketing ploy. Size based on rated output. Your DC has a FLA of 6A (240v), and those VFDs can do up to 7.5A, so it will easily drive it. Be careful mounting on the wall… you don’t want any switches between the VFD and motor, and an unexpected disconnect can toast the VFD. Since the unit gets programed for the specific motor, most people prefer to mount it on the machine to avoid complications. YMMV

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View clagwell's profile

clagwell

112 posts in 432 days


#6 posted 01-23-2020 12:57 PM


Does anyone know if I need to buy a VFD with double the HP of the DC I have. Saw a youtube video where the individual recommended that. So my DC is a 2hp unit then I would have to get a 4hp VFD? If anyone has insight let me know and all comments are greatly appreciated.

That recommendation applies when using a VFD that is rated for three phase input only. The two listed by MrUnix are both rated for single phase input and, as he said, will work fine.

The logic behind the 2x rule is that the single phase input current will be greater by a factor of the square root of three than using three phase input. (Actually even more than that because of the higher peak to average ratio of the current waveform.) The square root of three is about 1.7 so round up to two for VFD sizing.

-- Dave, Tippecanoe County, IN

View BuckeyeDennis's profile

BuckeyeDennis

78 posts in 338 days


#7 posted 01-23-2020 03:01 PM

I got a super deal on a JET DC-1200VX-CK3 a few years ago, and outfitted it with a VFD. There are some real benefits to using a VFD on a dust collector. There’s more detail in this post, including the VFD model that I used, but here’s an excerpt:

1) On my Jet DC, if I crank the motor speed down by only about 10%, the fan noise is cut roughly in half, subjectively. 90% of the airflow at 50% of the noise level is generally a great tradeoff, for me. At even lower speeds, it gets whisper-quiet.

2) When painting in my workshop, I divert the blower output to a through-wall fitting, so that I can use the DC as a big exhaust fan. (The motor on the DC is external to the blower, so there’s no explosion hazard.) My basement workshop is climate-controlled, and exhausting a lot of air can get expensive, depending on the weather outside. With the VFD, I can easily crank the exhaust airflow down to the appropriate level.

I built a triangular plywood box that serves a both a VFD mount and as structural stiffener for those spindly filter supports, It bolts to the DC baseplate, and attaches to one of the filter supports using J-bolts. The first pic is of the inside panel only, showing the motor cutout. In the second photo, I’m using the DC as a fume exhauster while painting in my daughter’s bedroom, with the cannister filter removed.

-- Dennis 'We are all faced with a series of great opportunities, brilliantly disguised as impossible situations.' Charles Swindoll

View Serrot's profile

Serrot

6 posts in 34 days


#8 posted 01-23-2020 03:18 PM



Does anyone know if I need to buy a VFD with double the HP of the DC I have.
- Serrot

No. The TECO L510-202, or the FM50-202 I mentioned above would work just fine. Don t size based on horsepower , as that is just a marketing ploy. Size based on rated output. Your DC has a FLA of 6A (240v), and those VFDs can do up to 7.5A, so it will easily drive it. Be careful mounting on the wall… you don t want any switches between the VFD and motor, and an unexpected disconnect can toast the VFD. Since the unit gets programed for the specific motor, most people prefer to mount it on the machine to avoid complications. YMMV

Cheers,
Brad

- MrUnix

Thanks Brad…I’ll be buying one of the 2 suggested here soon.


I got a super deal on a JET DC-1200VX-CK3 a few years ago, and outfitted it with a VFD. There are some real benefits to using a VFD on a dust collector. There s more detail in this post, including the VFD model that I used, but here s an excerpt:

- BuckeyeDennis

I read your post. It seems like buying the VFD is the way to go. I might need some insight on how to connect it up, so I might bug ya. Or I’ll just hire an electrician and get it over with lol

-- Gilbert, South Florida

View BuckeyeDennis's profile

BuckeyeDennis

78 posts in 338 days


#9 posted 01-24-2020 01:11 AM

I’d be happy to advise on VFD hookup, especially if it’s a model similar to mine. The wiring itself is straightforward. The real work for me was understanding some of the software setup parameters. I spent a good chunk of my career designing motion-control systems, but I still found the TECO FM-50 manual hard to follow.

-- Dennis 'We are all faced with a series of great opportunities, brilliantly disguised as impossible situations.' Charles Swindoll

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