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Davefr

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Davefr

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That looks nice. This looks like something you built rather than bought. Does the toggle switch have Fwd-off-reverse? Is there anything special about the toggle switch or the potentiometer? Will this pot work with the TECO you recommended?
https://www.amazon.com/dp/B0111U29C4/?tag=atomicindus08-20


It's just a blank stainless steel blank electrical plate with a couple holes drilled in it for the switch and pot. The pot controls speed and the switch is start/stop. The large switch on the right hand side is the main power switch to the VFD. (protected up to 15 amps)

A 5K linear pot will be fine. The one in your link might be too big. I'm not sure it'll fit though. That cavity is pretty small and you'll have a switch/pot and some wiring in there.

You could add a forward/reverse switch too if there's room. However for the very few time I need reverse, I'll just use the VFD.
 

u3b3rg33k

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So much cool gear in this thread.

No kidding eh! Once the magic smoke escapes, there ain't no going back. I installed a 230V machine on a 575v line once not realizing that they even had 575 and out came the smoke. I hadn't even started it up and only turned on the power. Never did that again. Now I don't trust labelled boxes or anything else.

You can buy the magic smoke though!

Smokekit2.jpg


remember to use OEM magic smoke, not 3rd party!
 

Goldhawg

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Ok, some success. The VFD is installed on my Delta DP and I followed the advice to use the SLV mode. I also was able to get my potentiometer to work. However I'm not sure about which connections to wire the toggle switch. I have a momentary SPDT toggle switch that I was hoping to go between forward and reverse w/stop in the middle. I don't know a lot about these switches but wasn't sure I even have the right switch. The reason for the switch was if I was tapping a hole it would be nice for those quick reverse setting to clear the chips prior to going forward to tap more of the hole. Will this type toggle switch work?
https://www.amazon.com/gp/product/B005GDG2OO/?tag=atomicindus08-20

Which connections on the VFD should I use?
 

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laser3kw

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yes that switch would work. Most VFD use low voltage, low current in their terminal functions.
As to how to wire it up, read the manual. It will tell you how to wire for two wire or three wire control. Two wire would be sufficient. It will tell you do something like use S1 for forward and S2 for reverse. So the switch will have a wire from the top terminal to S1, one wire from the bottom terminal to S2 and the middle terminal to a terminal common on the VFD.
 

Goldhawg

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Thanks...I wasn't sure about how to do it as the manual wasn't clear to me. Now I'm operational.


Appreciate the encouragement and assistance; those of us in the electrically challenged department get by with a little help from our friends!
 

GLTHFJ60

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Ok, some success. The VFD is installed on my Delta DP and I followed the advice to use the SLV mode. I also was able to get my potentiometer to work. However I'm not sure about which connections to wire the toggle switch. I have a momentary SPDT toggle switch that I was hoping to go between forward and reverse w/stop in the middle. I don't know a lot about these switches but wasn't sure I even have the right switch. The reason for the switch was if I was tapping a hole it would be nice for those quick reverse setting to clear the chips prior to going forward to tap more of the hole. Will this type toggle switch work?
https://www.amazon.com/gp/product/B005GDG2OO/?tag=atomicindus08-20

Which connections on the VFD should I use?

What potentiometer did you use? I'm having trouble getting my McMaster potentiometer working with my L510.
 

laser3kw

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What potentiometer did you use? I'm having trouble getting my McMaster potentiometer working with my L510.
if you have it wired correctly, the problem could be in the VFD.
Some VFD's require toggling a parameter to enable the VFD to use the analog input (Potentiometer in your case).
nine4gmc had that problem. look back to page 17 or so.
 
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laser3kw

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according to the L510 manual, you will need to hook your pot:
right hand term on pot to +10v analog supply on VFD.
left hand term on pot to "AGND" on VFD
middle term on pot to "AVI" on VFD
If this works but the speed decreases as you turn the pot clockwise, reverse the +10 and AGND positions on the pot.
I haven't read the whole manual to see if there are additional steps.
edit
I read furthur:
yes - you need to set parameter 00-06 to "2"
 
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GLTHFJ60

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according to the L510 manual, you will need to hook your pot:
right hand term on pot to +10v analog supply on VFD.
left hand term on pot to "AGND" on VFD
middle term on pot to "AVI" on VFD
If this works but the speed decreases as you turn the pot clockwise, reverse the +10 and AGND positions on the pot.
I haven't read the whole manual to see if there are additional steps.
edit
I read furthur:
yes - you need to set parameter 00-06 to "2"

Yes, I'm aware, I've wired it up correctly. I suspect the range of my potentiometer is incorrect, so I'm asking which potentiometer you used so I can verify I bought the right one. What are the specs on yours?
 
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laser3kw

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just for giggles, hook up an ohm meter to what you think is the wiper and on other terminal. Sweep the pot back and forth and make sure the resistance is changing.
 

tarbellb

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Will the VFD gods take a look at this VFD on Ebay and let me know if it will work for my application please?

Ive been searching for a couple years now for one capable and cheap enough to cosider for my planer.

Scope: Delta RC51 planer 7.5hp 3ph motor

Power IN- 220v 1ph 30amp breaker
Power OUT - 200-220v/440v 60hz 3ph

VFD in question- https://www.ebay.com/itm/TOP-7-5KW-...861664?hash=item2a5d0e8f20:g:zjgAAOSwHnFVnhP9

Thanks in advance.
 

GLTHFJ60

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Looks like it will work from a cursory glance. Does not define the max input amperage draw of the VFD, but other than that, it should be able to drive that motor.
 

Davefr

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Will the VFD gods take a look at this VFD on Ebay and let me know if it will work for my application please?

Ive been searching for a couple years now for one capable and cheap enough to cosider for my planer.

Scope: Delta RC51 planer 7.5hp 3ph motor

Power IN- 220v 1ph 30amp breaker
Power OUT - 200-220v/440v 60hz 3ph

VFD in question- https://www.ebay.com/itm/TOP-7-5KW-...861664?hash=item2a5d0e8f20:g:zjgAAOSwHnFVnhP9

Thanks in advance.

Ask the seller to email you the complete installation and programming manuals before you buy it.

These no name Chinese VFD's often have terrible documentation translated in broken English that will leave you frustrated and/or guessing.

Good quality documentation is very important when buying a VFD.

Based on the feedback, it looks like tech support is non existent.
 

aosty

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west coast
In general, VFDs (beyond small 2hp units) fed from single phase power need to be derated by roughly half... i.e, a 15hp might be more suitable for your 7.5hp motor. I would confirm with the vendor if derating is necessary.

Also, you mentioned 440v - if your motor is 440-480v, you will need an additional transformer.

YMMV


Will the VFD gods take a look at this VFD on Ebay and let me know if it will work for my application please?

Ive been searching for a couple years now for one capable and cheap enough to cosider for my planer.

Scope: Delta RC51 planer 7.5hp 3ph motor

Power IN- 220v 1ph 30amp breaker
Power OUT - 200-220v/440v 60hz 3ph

VFD in question- https://www.ebay.com/itm/TOP-7-5KW-...861664?hash=item2a5d0e8f20:g:zjgAAOSwHnFVnhP9

Thanks in advance.
 

tarbellb

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Thank you guys. All those things mentioned have crossed my mind.

In the past, when I look at the specific specs it usually indicates derated capacity like aosty mentioned. This one doesnt mention that.... yet.

I will send a email to get more details.
 

tarbellb

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A static converter should work well on your planer. They are cheaper and I think a good fit for the application.

Uh, I was under the impression that a) more expensive = $500+ b) required more amps to run?

Got a example or link you suggest?

-----------------

I should add that my threshold for budget is about $500, at that price point I can find a 5hp / 1ph / 1.25" shaft motor replacement and deal with the lower hp...
 
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slodat

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Slowly assembling the VFD setup for this Powermatic model 1200 still press. This drive will be used as a phase converter because the machine has the Reeves drive for variable speed. I bought the Hoffman enclosure on eBay for $30-40 (can’t remember exact price). Spent another $10 on the Hoffman back panel. The Eaton disconnect is also from a surplus seller on eBay. It will be mounted on the side of the belt enclosure such the disconnect will face the operator. I’ll add a power on lamp so I can see the power on from across the room.

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MushCreek

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Okay- I have my VFD; now it's time to install it. My question is- What enclosure to use? This will be mounted on the wall behind my mill. There will be chips, and possible metallic grinding dust, both from a surface grinder in the same room, and the occasional maniac (me) taking something apart with an angle grinder. Water or oil shouldn't be present. My VFD is a Teco L510.

Should I go to a NEMA 4 rated enclosure? The Type 1 enclosures don't sound like they would protect enough. What about size? Somewhere on this thread, someone mentioned 4 times the volume of the VFD for a closed enclosure. That puts me right at a 10X10X6. Is this really enough? I guess there's no harm in going bigger.

Lastly- Why do half the vendors on ebay feel that the size of the enclosure is not important enough to put in their friggin' listing? They give you a part number, which you google, only to find it's not the size you want. (rant over)
 

MushCreek

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Another question: I want to run my VFD off of remote controls mounted on the mill. Definitely Forward/stop/reverse, and a variable pot to control the speed. Can I use shielded Cat5e cable for control? If so, can I simply mount a Cat5 jack on each end, and use a pre-made cable? Quick, clean, and easy-peasy. Or won't that work?
 

aosty

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Another question: I want to run my VFD off of remote controls mounted on the mill. Definitely Forward/stop/reverse, and a variable pot to control the speed. Can I use shielded Cat5e cable for control? If so, can I simply mount a Cat5 jack on each end, and use a pre-made cable? Quick, clean, and easy-peasy. Or won't that work?


yup :)
 

laser3kw

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Another question: I want to run my VFD off of remote controls mounted on the mill. Definitely Forward/stop/reverse, and a variable pot to control the speed. Can I use shielded Cat5e cable for control? If so, can I simply mount a Cat5 jack on each end, and use a pre-made cable? Quick, clean, and easy-peasy. Or won't that work?

Yup - x2
most vfd control circuits run 10v x 20 milliamp. auxiliary functions requiring outside sources are up to 30 v x 20mA
if your Cat5 has 24 gauge wires, they will handle 600 milliamp.
 
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chrislehr

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My first VFD install was for a Leeson 3 phase 1.5hp motor that came on my PM60. It's a 206 frame, which is discontinued (so pre 1955) and while I could have waited and found something suitable, it was so original, I hated to do so.

Got a FM50 as well, and came out great. I ended up able to use the old magnetic started for the 12v starter and since the jointer is an "as needed" tool in my shop, I move it and plug it in each time, so I didn't need an on/off for the VFD.

So far, it works fantasticly.

1215e8881b7b751a1e10adadd968d06f.jpg

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chrislehr

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I’ve got one a lot like yours!
88554bf9104626e1cdb5432f8abac96a.jpg

Slightly newer, but yep. I need to find that guard, but I don't have the bolt holes, so I am thinking earlier models maybe didn't have it. Mine is a 1955 iirc.
 

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