A couple G540 questions

[blades]

I'm in the process of designing (soon to be building) a very basic automation machine for my brother-in-law. I need to control (3) 1200 oz. in. NEMA 34 motors which I will most likely source from Keling.

Are these motors within reasonable size to control with the G540?

Is there some simple and basic software that I can use with the G540 to control the motors? Typical CAM software such as Mach is not practical for this application. I'd really like to just specify number of steps, direction, and speed for the motors. Non-technical people will be running this once I get it set up, so foolproof and simple is the name of the game.

Thanks much for any input!

[jalessi]

Blades,

This may interest you.

http://learn.automationdirect.com/PL...CHardware.html

Jeff...

[jalessi]

http://www.aboutplcs.com/click/?learnflashbanner

[ger21]

Are these motors within reasonable size to control with the G540?

Depends on how fast you need them to go.


You can create a custom screen for Mach3 to do exactly what you want.

[Crevice Reamer]

Originally Posted by blades I need to control (3) 1200 oz. in. NEMA 34 motors which I will most likely source from Keling. Are these motors within reasonable size to control with the G540?

If you can find 1200 oz motors that operate at 50V and 3.5A, then yes.

Anything over 3.5A will detune the torque. Anything over the 50V will detune the top speed.

Keling 1200s:

KL34H2120-60-4A:
78V 6A. = fairly fast speed & detuned 700oz torque with G540. Could be geared down 0.6 :1 to increase torque back to 1200 oz.

KL34H2120-42-8A:
PARALLEL: 82V 6A = Medium speed, 700oz torque.
SERIES: 163v 3A = Very slow speed, 1200 oz torque.

Keling 906:

KL34H-295-43-8A:
Parallel: 58V, 6.1A = Very fast speed, detunes to 522oz torque.
Series: 116V, 3.1A = Slow speed, 906 oz torque.

CR.

[blades]

Thanks for the reply guys, I will look at those links.
Great info on the custom screen for Mach... I haven't played with Mach enough to know that, but it sounds worth looking into.

Hey CR, you really get around the forum! Lol, I normally don't venture out of the mini lathe forum, but there is a whole world of CNC Zone I haven't looked at.

2 of the motors will be low speed, under 10 RPM. The 3rd is a spindle motor, and may be up to 500 rpm.

The motors I am looking at may be a bit overkill, but I do want to stick with NEMA 34 size. I will probably take a look at the KL34H-295-43-8A you listed at the bottom, as I think the 906 tq would be plenty for this. Thanks for the info on this CR!

[Crevice Reamer]

YW!

The 906 runs VERY well with the G540. Geared 1.23 to one, it will reliably move the Z of an X3 mill up and down at about 200 IPM--That's 1000RPM while lifting at least 100 LB. This would probably be your best spindle motor, since it will run very fast--Probably 1500-2000RPM as a spindle-- and may do as well for the other two.

CR.

[blades]

After doing some more figuring, the 2 positional motors would require an absolute max of only about 60 rpm, but normal speed would probably be about 30 rpm moving a small pallet 30 inches via. a small sprocket & chain drive. There will be 2 motors pulling the pallet. Actual required force is unknown, but probably less than 20 lbs. Each revolution of the motor will carry the pallet about 5" with the 1.6" pd sprocket. This small sprocket effectively gives me a 1.25:1 ratio of the rated power (since the point of load is at .8" from the center of the motor, which is rated @ 1.00" from shaft center).

Looks like I could drop down to a NEMA 23 and go with KL23H286-20-8B, which is rated @ 425
If I'm figuring correctly, should give me 33 lbs. pulling force from each motor, which is still way overkill. There's also the KL34H260-42-8A or KL34H260-60-4A if I want to stay with the NEMA 34 size.


Sorry for my rambling... I'm thinking "outloud"

EDIT: CR, I just took a look at your website where you mention that the KL23H2100-35-4B is probably the best match for the G540 considering voltage requirements. That would probably work well for me also. The smaller motor would also allow me to drop down to as low as a 10t sprocket to gain back any lost power, and still maintain a relatively low RPM requirement. Thanks again CR! <<bookmarks your website>>