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  #1  
Old Thu 26 July 2012, 16:35
saas
Just call me: saas
 
ceje
Slovenia
nema 34

my friends,

After once again overcome personal problems continue with the planning and construction of CNC,

Ah, life is sometimes very difficult, but always after the rain comes the sun, and opposite

I think that this is a stepper motor

Uploaded with ImageShack.us is very similar :::: PK296A2A-SG7.2?


greeting
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  #2  
Old Fri 27 July 2012, 09:06
Richards
Just call me: Mike
 
South Jordan, UT
United States of America
There are three important data items that should be part of motor selection.

1. Physical size = 34

2. Holding torque = [at least] 350 oz*in (2.5 newton metres) for geared or belted motors, [at least] 600 oz*in (4.25 newton metres) for motors without reduction

3. Induction (mH). Lower is better.

The motor you selected has high inductance. It will work with an 80 VDC power supply, but a motor with 1.5 mH to 2.5mH would be my choice.
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  #3  
Old Tue 28 August 2012, 07:21
Mrayhursh
Just call me: Hurshy
 
Riverview, Florida
United States of America
Wiring for NEMA34 640 OZ-IN 4.5A STEPPER MOTOR (KL34H280-45-4A) 640 oz In. Hy

When wiring the 4 motors that I ordered from metal head mike. Do I connect the wires for the coils at the motor? And just put a wire nuts on them. What are the methods for connecting the motors to the system. I have concerns about the vibration that will occur during operation. Help!!
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  #4  
Old Tue 28 August 2012, 12:53
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
NO WIRE NUTS.

Use a connector like
4 pin XLR available at

http://www.markertek.com/Connectors-...nc/NC4FX.xhtml

Or - other locking 4 pole connector rated for 10Amps @ 80VDC

Or - butt joint, solder and heat shrink the connection and home run to control box drivers.
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  #5  
Old Tue 28 August 2012, 14:43
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Or better yet, Western Union joint, then solder and heat shrink!
http://www.tpub.com/neets/book4/12a.htm

Last edited by domino11; Tue 28 August 2012 at 14:51..
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  #6  
Old Tue 28 August 2012, 15:24
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Heath....that's kinda what I meant! Thanks for clarifying
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  #7  
Old Wed 29 August 2012, 01:45
Mrayhursh
Just call me: Hurshy
 
Riverview, Florida
United States of America
XLR Motor Connectors for KL34H280-45-8A

I do like the idea of the XLR connectors. Does anyone have a close up shot? I see the motors have 8 wires and I will be usings the 4 pin XLR connectors. Which wire goes where? Will I need to wire this bi-polar(Series or Parallel) or uni-polar? I searched Google and found http://www.kelinginc.net/KL34H280-45-8A.pdf
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  #8  
Old Wed 29 August 2012, 01:55
KenC
Just call me: Ken
 
Klang
Malaysia
This is the fun part with DIY, you get to decide which pin/wire goes where.

PS, I've never once need to disconnect the motor since mine was commissioned. IMHO, XLR connector is luxury.

Last edited by KenC; Wed 29 August 2012 at 01:58..
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  #9  
Old Wed 29 August 2012, 01:59
Mrayhursh
Just call me: Hurshy
 
Riverview, Florida
United States of America
bi-polar or unipolar

ok what about the unipolar vs bipolar?
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  #10  
Old Wed 29 August 2012, 04:55
KenC
Just call me: Ken
 
Klang
Malaysia
Read the sticky
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