VFD Magic and 1 question

[Shaw Blades]

I have my VFD controller with a speed pot and motor all wired up, tested good. I'm amazed at this technology. I've never messed with one and I was playing with it all night. Onto my question, as you might be able to see in my last picture I have not popped out the punch outs yet. I just wanted to wire everything up and make sure it worked. Tonight I was wanting to finish everything out properly and it seems that when I remove the punch outs and run the wiring through them there will be some opening around the wires. Do you guys have any suggestions to dust proof this air space around the punch out holes? I was thinking silicone but something maybe more attractive would be better.

I will have enough money to get the actual KMG in about 2 more months.

As usual thanks for your creative input in helping me finish this out.

 

[Stacy E. Apelt - Bladesmith]

PVC conduit connectors in the punch outs with split rubber or cork stoppers forced in the connectors around the wires. Put the corks in from the inside. To make the fit really snug - before splitting the stoppers, pre-drill the wire hole with a drill a tad smaller than the wire.

 

[Shaw Blades]

Awesome idea, thanks man. I have a bag full of wine corks I am finally seeing a use for.

 

[Brian Ayres]

Cable glands. The screw in with a nut, and then have rubber cone washers that snug up to the cable both sealing the opening as well as locking the cable in place so you can't accidentally rip all your wiring out.
Stacy's idea would work if you have more time than money. The glands are only a buck or two...

 

[Shaw Blades]

I'll look for those at Lowe's today. Thanks.

 

[12345678910]

If the punch outs are standard sizes

I agree with cable glands

They are standardized by 1/2"npt and 3/4"npt pipe sizes
You probably want 1/2" npt which will actually measure more

I can't find them in my local Lowes, but Home Depot and specialized electricity shops have them

 

[Shaw Blades]

I found something similar at Lowe's. "Cord Grip Connector" by manufactured by Neer, part # SRA-450 49212.

Thanks Count

 

[Erin Burke]

I'll look for those at Lowe's today. Thanks.

I've never had luck finding them at Lowes. I buy mine from the local Platt electric. THESE are similar to the ones that I buy. Just find your local electrical supply house and ask for a cord grip in the size that will match your wire.
Erin

 

[12345678910]

Erin has a good point


I always take a piece of the wire in with me.

There are different internal sizes too, variation of an internal rubber ring.
It helps to have it in your hand.

Be sure you get a nut with it, some sell it included, some not

 

[Shaw Blades]

Ok. Thanks everyone. We'll see how it goes when I get home.

 

[12345678910]

I haven't' seen that vfd before , can you give us the model number, where did you get it and cost please?

 

[Shaw Blades]

Lenze ACTech SMVector Drive NEMA 4 enclosure $375
ESV112N01SXC (This is the Item number from where I bought it, I'll check for model number and post when I have it in hand)
The Speed Potentiometer you buy separate and attach by 3 wires
ESVZXM1 (Item # again) $55

Free shipping and from Jeff at PTJ Industrial. After reading the manual the basic programming on the VFD is easy if you can read. But the possibilities in the more complex settings are pretty much endless. I'm seriously considering buying the add on and putting it on my home network so I can turn it on and have it running before I even step foot in my garage. I'm confident it will last, the company seems reputable. I had the whole thing up and running in about 15 minutes. Going back and refining the punch outs will add a little time obviously.

I contacted PTJ just to get a quote after seeing one of David66's posts. I told him what I needed and we came up with this idea. Overall it was a bit cheaper than the motor package with the KMG without skimping on quality.

 

[PT Doc]

For machined aluminum, these are very nice and quite cheap:

http://www.drillspot.com/products/44961/hubbell_wiring_shc1034_strain_relief_cord_connector

 

[stevomiller]

As stated, cable glands are the "industrial standard" method. Besides keeping dirt and moisture out, they strain relief the connections within the box (good idea to leave some slack in the box).

 

[Shaw Blades]

VFD Model #: ESV112N01SXC

Here is what I ended up doing, the nipple on these clamps was not long enough for me to tighten it down tight enough to grip the cable. Hopefully this will help someone.