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METAL LATHE SMOKE, RPM LOSS, NEW LATHE MOTOR?

MooseMeat said:
Almost there pending motor issues as mentioned above, a couple of pictures to start with. Now I could not find this in the manual about starting the vfd, this vfd will not power up without a motor connected correct?

-enclosure is a Vevor 12x12x6, breaker and fuse as well from amazon.

Did a major upgrade on the lathe, is it noticeable??.....😉
Click to expand...
Correction on the above,
the vfd will power up without a motor, I was a little confused but it turns out the white wire on the green breaker had no continuity, I must have pushed the connector in too far and the shielding on the connector was just enough to not make proper contact.

I searched high and low in the manual but it didn't say either way, motor no motor, power no power, I watched the e Motors vfd video and the host only had power in so I checked for continuity and sure as shite it was one wire out of sorts.
 
MooseMeat said:
Almost there pending motor issues as mentioned above, a couple of pictures to start with. Now I could not find this in the manual about starting the vfd, this vfd will not power up without a motor connected correct?

-enclosure is a Vevor 12x12x6, breaker and fuse as well from amazon.

Did a major upgrade on the lathe, is it noticeable??.....😉
Click to expand...
Looks good to me.
 
MooseMeat said:
Correction on the above,
the vfd will power up without a motor, I was a little confused but it turns out the white wire on the green breaker had no continuity, I must have pushed the connector in too far and the shielding on the connector was just enough to not make proper contact.
Click to expand...

Well, you have more guts than I do. I would not have even tried.

I guess it makes some sense both ways though. Just don't press start.
 
It doesn’t hurt them to power up the output without a motor as long as one isn’t connected to it suddenly while it is powered up.

Usually starting without a motor connected can be done by disabling the parameter that most of them call “output phase loss” or something similar.

It is handy for testing sometimes actually.
 
Dabbler said:
@MooseMeat there are at least 10 guys here that can talk you through it. if you choose a TECO 510 unit, I can help you there... the new ones have a great manual, and have a self configuration mode that does 80% of the programming for you.
Click to expand...
morning,
Box is all wire up and ready to install, did a power test last night found a "bug" fixed it. I don't remember seeing the self configuration mode in the manual or I maybe read right past it, overall it has turned out to be a fun upgrade and confidence builder, thanks to all the help here of course.
 
Dabbler said:
@MooseMeat there are at least 10 guys here that can talk you through it. if you choose a TECO 510 unit, I can help you there... the new ones have a great manual, and have a self configuration mode that does 80% of the programming for you.
Click to expand...
Q:
this vfd has no emergency stop function but it does have a rapid stop function, but I am not really sure which configurable inputs to use, the potentiometer and the fwd/rev are assigned as I would also like to use the stop button.


I am definitely missing something, instruction wise on how to set up things like this, I don't like guessing, but if I were to hazard a guess, I would share the common and wire in to S5 and then programme that to rapid stop????
 

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MooseMeat said:
I am definitely missing something, instruction wise on how to set up things like this.
Click to expand...

You have been busy making a ton of progress. It's great to see and follow along.

I don't think you have used any of the multifunction inputs yet. But even if you have, you just need to wire the e-stop switch as normally open and connect it between connector S1 to S5 and common. The choice is up to you which one you wish to use. Obviously, you can't use one that's already used if one is already used. Next, you have to program the VFD such that THAT PARTICULAR CONNECTOR is set to Function 14 which is fast braking.

From then on, whenever you press the e-stop, the VFD will initiate fast braking.

That's all there is to it.

Edit - I see @YYCHM already replied with a better answer!
 
YYCHM said:
Yes. Use S5 with it's function set to 14 (Rapid Stop).



View attachment 70634
Click to expand...
ok,
so I have to share the common then, I would need to make a pigtail with two connectors as two of my wires would be too big to fit in there, the red button I have now has only two wires, one wire in the common and the other in S5? the diagram above shows 2 yellow highlighted, a bit confusing, I am assuming the two wire switch is all that's needed?

I just checked the old e stop switch, it's a NC and I need a NO.
 
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MooseMeat said:
ok,
so I have to share the common then, I would need to make a pigtail with two connectors as two of my wires would be too big to fit in there, the red button I have now has only two wires, one wire in the common and the other in S5? the diagram above shows 2 yellow highlighted, a bit confusing, I am assuming the two wire switch is all that's needed?
Click to expand...

Yes, a 2 wire sw is all that you need. Wire com for 5 connections (pigtail) incase you want to add a function in the future.
 
MooseMeat said:
ok,
so I have to share the common then, I would need to make a pigtail with two connectors as two of my wires would be too big to fit in there
Click to expand...

I just added a little busbar in my box that I can use to share the common with other devices.


MooseMeat said:
there is only one removable block on the back and it says NC
Click to expand...

That is odd. Most of the EStop buttons I've seen include both NO and NC connections. But it is what it is. You will either have to get a new NO Switch or use a relay to create a NO connection from the NC switch.

A few things to be aware of:

1. The VFD rapid stop function is often latching. Once engaged, it stays engaged until reset. You may need to cycle the power to exit the rapid function.

2. Rapid stop is not meant to be the normal start/stop function. The stop can be too aggressive for normal stops. Some systems even use a braking resistor to shorten brake times.
 
There is a safety reason that an ESTOP switch is Normally Closed. If the ESTOP event makes 'things' stop moving then a broken wire to the ESTOP switch would do the same thing.

Just imagine that you have something caught or is spinning dangerously. You duck down and hit the ESTOP and nothing happens because the wire to it vibrated loose a week ago because the ESTOP is Normally Open as is the broke wire. Impossible to close the circuit.
 
Susquatch said:
I just added a little busbar in my box that I can use to share the common with other devices.




That is odd. Most of the EStop buttons I've seen include both NO and NC connections. But it is what it is. You will either have to get a new NO Switch or use a relay to create a NO connection from the NC switch.

A few things to be aware of:

1. The VFD rapid stop function is often latching. Once engaged, it stays engaged until reset. You may need to cycle the power to exit the rapid function.

2. Rapid stop is not meant to be the normal start/stop function. The stop can be too aggressive for normal stops. Some systems even use a braking resistor to shorten brake times.
Click to expand...
morning,
I did read up on it and asked E Motors, I was all set to put a braking resistor on it but the function is not supported, too bad because they're all over amazon some are quite reasonable in cost. I went to look for the NO block in the shop thinking I took it off but NO such luck. Back to amazon I go, 34$ for a pack of 4 NO/NC e stop buttons, a 110/240 tach and a 7/8 steel pulley; by Tuesday you all should have new pics.

Here is an idea for someone in the know here, find a vfd that supports stuff like mills and lathes and the so on with features like braking resistors to add on. I am far from the technical side of things but it would be a real help to find something designed for plug and play, fans, lights and other goodies to plug into a vfd, oh and cheap enough a fella or yes even a gal has beer money left over.

(off topic sort of)
I went into KMS in Nanaimo yesterday and they had quite a few motors on the shelf and when I asked two guys for a pulley the stared at me for a second tried to process the question and said you want a puller, they walked away to look and never came back to me. 😉 Another guy stopped me on the way out and asked if he could help, big mistake...😉 I said every motor in here and you sell motors too there is not one pulley to be found, he said yah and we sell tools that we have no blades or cutters for too, we both laughed, criticized the world, swore a bit and went our own ways.

I really don't know how these businesses stay above water, KMS is a prime example, I go in there time to time, look at stuff, then go right to amazon and search, they must have decent house cleaning because the same items haven't moved spots in a year and no dust on them...😉

I'm all worn out now I need a nap😉
 
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