keling drivers?

[j king]

Anyone running these? I was looking at new steppers and saw they had their own.I suppose I should stay with geckos but was curious.

[John Stevenson]

Yes, fitted loads and had no problems with them.
They are made by Leadshine in China and do have more protection on them than Gecko's.
Where they score is on the larger 7.8 amp drives driving large motors.
the Gecko have problems with large 42 series motors in that the resistance is very low on some of these that a Gecko see's it as a short on startup and blows. The Leadshine doesn't have this problem.

I have just bought 4 of the large drives this week for a Bridgeport conversion and 3 of the smaller ones for a router conversion.

My own router also has the smaller drives fitted and all the X3 CNC kits we have sold has been supplied with either 3 or 4 drives depending on whether the 4th axis is fitted or not.

None have been returned as faulty or damaged in use.
I have blown one up but we won't talk about that :D

.

[j king]

John,

What model are you putting on the BP? I am going to put the 906 oz steppers on my boss conversion.I looked at their site and cant understand what the differences are.Very confusing. Geckos seem to have a basic,better,protected, and idiot proof! I guess I need the latter. : ) I may call keling Monday but I am sooo stupid at electronics that I will embarrass myself.
Thanks, jim

[jacampb2]

I bought some for my boss retrofit on John's recomendation, they have performed flawlessly.

[j king]

Hi Jason.
What model did you buy?

[John Stevenson]

http://www.kelinginc.net/KLDriver.html

Top one on the list KL-9082

These are actually better than the previous stock they used to carry.
Old stock was 80 volts max and 7.8 amps.
these are 90 volts max and 8.2 amp.

.

[j king]

cool - Thanks sir John. : )

[j king]

Well, since I have that decided on..whewww..Ill ask another question if you dont mind.

Dont really know what I need here as far as a power supply. Jim Glass gave me instructions on building one but I am not really much at building electrical pieces.I feel ok installing components if that makes any sense.

Back to the power. I take it you can apply as many volts to a dc motor as long as the drive will handle it.Well ,within reason.Is this correct? More power is always better as Tim Allen always says! Sorry dont know how to grunt on the key board.The extra power comes at a premium tho.

Or is the volts not as important as the watts available? Thanks again Jim

[John Stevenson]

Jim,
Power supplies are easy they are literally so crude. Give me a web site of someone you deal with as regards electronics, Mouser ? Digikey ? and I'll get some part numbers for you and a circuit.

What amperage are your motors ?

[j king]

John.

heck I am not dealing with anyone. I'm as green as a granny apple..

Here is the stepper I will buy. http://www.kelinginc.net/KL34H295-43-8B.pdf

These are the 906 oz steppers I had shown the other day. Rated Current: 6.1A, Rated Voltage: 2.1V (in Bipolar Parallel)

I was kinda figuring on ordering everything from Keling.It really doesnt matter tho.Kinda going by your positive recommendation of them.

[jacampb2]

Hi Jason.
What model did you buy?

I bought the KL-8078's, however, on looking at their site just now, the 90xx is the same price, so would be a good choice. The only complaint I have about these drives, is that the manual and setup information is not well written, and somewhat incomplete. The drivers came in a box w/ no info at all. I downloaded the manual from Keling's website, and later found the OEM suppliers data sheet for them, which had a bit more info, still not great. In the end, John, and others here helped me get them set up right, and they work very well for the price point.

I have mine running on a 80Vdc supply, current limiting shut off. This puts the drivers right at their limit, and they have never shown any signs of any issues. I originally tried with a 54Vdc supply, and it worked fine, but was too slow, even for steppers... This is most likely due to the fact that I kept the original B'port steppers, and they are 30 years old. I could have probably went with new steppers and a lower voltage supply and still had more power and speed than what I have now...

Good Luck,
Jason

[John Stevenson]

Jim,
If you want to but everything from Keling then go for the KL - 6515 unit.

This unit plus 3 motors and 3 drivers is all you will need except for the odd sundries like fuse holders etc.

If you want I can do you a wiring diagram and settings sheet to suit these.

.

[j king]

Sounds GREAT John. I need a breakout board dont I? I have all new shield wire to replace everything.Got new fans and mount panel plus power stips and fuse holders.Bought an ac drive to power head.

The steppers only have 1/2 shafts.The BP has 5/8 shafts.Does one buy new belt pullyes or make a thin sleeve?I would assume buy new pulleys.

I will get this stuff ordered Monday.There is no hurry.I started this over a year ago! Lots of reasons it hasnt progressed.

I am a traveling machinist so I am not home every nite. Often gone for weeks at a time...

Thanks for all the help.

PS..Jim Glass. I will get there. Take care.

[John Stevenson]

Jim,
Yes you do need one Keling lists the C11G board but theirs is the old 5.4 Rev, you will need to check with them if it is old stock or whether to go direct to Arturo at CNC4PC.com and get the newer rev 7 board.

This board will also power your AC drive, you just stick the variable speed in a mid range and use the computer to swap speeds.

What is your AC drive and do you have a link to the manual and I can then give you the wiring for that as well.

.

[j king]

The drive is an Omron 3G3MV-A. This is the first I looked at it..Super slim manual compared to the other drives I have.

I cant thank you enough John. But Ill try. Thanks Jim

[John Stevenson]

OK got the manual, what model or Kw is it ?

[j king]

Ill have to look tomorrow John.

[j king]

Morning John..
The model is A2040.
Have a good one.

[Mariss]

Yes, fitted loads and had no problems with them.
They are made by Leadshine in China and do have more protection on them than Gecko's.
Where they score is on the larger 7.8 amp drives driving large motors.
the Gecko have problems with large 42 series motors in that the resistance is very low on some of these that a Gecko see's it as a short on startup and blows. The Leadshine doesn't have this problem.
.


With all due respect this is very outdated information. The G203V is short-circuit protected, over temperature protected, reverse polarity protected, under and over voltage protected. It also has mid-band resonance compensation and morphs from microstepping to full-stepping to get the motor to give everything it has. It loves NEMA42 motors.

Mariss

[j king]

John. Stuffs on its way! wha hooo.