[mulligan]

I have hit a bit of a road block trying to figure out my coil wires. Am I right??

I have a six wire Kelling Motor (KL23H276-30-6A) 3 Amp/Phase 2.0N.m. I am using uni-polar drivers.

I think my wire config should be this:

Center Tap Coil #A = White
Wire #1 = Red
Wire #2 = Blue

Center Tap Coil #B = Yellow
Wire #4 = Black
Wire #5 = Green

Using my ohm meter I determined the following:

Wire colors = Red, white, green, yellow, blue, black.

Red on Common

Blue - 2.5 ohm
White - 1.7 ohm

White on Common

Red - 1.7 ohm
Blue - 1.7 ohm

Green on common

Black - 2.5 ohm
Yellow - 1.7 ohm

Blue on Common

Red - 2.5 ohm
white - 1.7 ohm

Yellow on Common

Black - 1.7 ohm
green - 1.7 ohm

Black on Common

Yellow - 1.7 ohm
Green - 2.5 ohm

[kuikkap]

You are right.

[mulligan]

So if I were to run these as Bi-polar, how would they be wired?

[jschmitt]

try http://www.kelinginc.net/KL23H276_30_6A.pdf
red-a+
blue-a-
black-b+
green-b-

[James Newton]

If you ever need to work out wiring again, this web page makes it pretty darn easy:
http://www.piclist.com/techref/io/stepper/wires.asp

as to making that into a bipolar configuration, see:
http://www.piclist.com/techref/io/stepper/wires.htm and notice that the only difference between the "6 wire unipolar" and "4 wire bipolar" is that the center taps are ignored for the bipolar setup.

I take it you were asking about the bipolar only out of curiosity as you already have a unipolar driver?

[mulligan]

Perfect! Great links, I appreciate the help. These could have saved me quite a bit of head scratching.

[mulligan]

Scratching my darn head again!

I ASSumed that my 425oz Keling motor was six wires, but it is an eight wire stepper.

I have read and read, and am unable to connect my motor to the driver.

Wires are as follows:

Red
Green
Black
Blue
Red/white
Green/white
Black/white
Blue/white

Red to Red/white - 3.7 ohms
Green to Green/white - 3.7 ohms
Black to Black/white - 3.7 ohms
Blue to Blue/white - 3.7 ohms

I have the same uni-polar driver as in my first post and I need to know these connections.

Center Tap Coil #A =
Wire #1 =
Wire #2 =

Center Tap Coil #B =
Wire #4 =
Wire #5 =

I this info from the mft:

A Blu/Wht
Blu-Red/Wht
B- Red
C GRN/Wht
GRN-BLK/WHT
D- Blk

:drowning:

[James Newton]

Dude, go to this page:
http://www.piclist.com/techref/io/stepper/wires.asp and follow the directions exactly. If you don't have an Ohm meter, they cost about $12 at Radio Shack. It doesn't get any easier than that, if the wireing diagram isn't available from the mfgr.

[mulligan]

Dude, go to this page:
http://www.piclist.com/techref/io/stepper/wires.asp and follow the directions exactly. If you don't have an Ohm meter, they cost about $12 at Radio Shack. It doesn't get any easier than that, if the wireing diagram isn't available from the mfgr.

Tried that several times to no avail... I leep getting the error saying my data was not input correctly

[jschmitt]

Tried that several times to no avail... I leep getting the error saying my data was not input correctly

I have not had much luck with that page either on an 8 wire motor.

are you sure you don't have this motor instead? http://www.kelinginc.net/KL23H276-30-8A.pdf

[James Newton]

Tried that several times to no avail... I leep getting the error saying my data was not input correctly

What is your data? If you let me have it here, or by email, I'll try to figure out what is going on and correct the script if it has a bug.

jschmitt, if you have any data on an 8 wire motor that isn't working on that page, I'd love to see that as well.

[mulligan]

I have not had much luck with that page either on an 8 wire motor.

are you sure you don't have this motor instead? http://www.kelinginc.net/KL23H276-30-8A.pdf

Positive. Mine is the KLH23H286-20-8B

What is your data? If you let me have it here, or by email, I'll try to figure out what is going on and correct the script if it has a bug.

jschmitt, if you have any data on an 8 wire motor that isn't working on that page, I'd love to see that as well.

[jschmitt]

Positive. Mine is the KLH23H286-20-8B

try this page then:http://www.kelinginc.net/KL23H286-20-8B.pdf

[James Newton]

Turns out there IS a bug in that page: It doesn't work for 8 wire motors. I'll work on it. I tested it again for 5 and 6 wire units and that is fine, as far as I can tell. It's just the 8 wire ones that it doesn't work for.

[mulligan]

try this page then:http://www.kelinginc.net/KL23H286-20-8B.pdf

I have looked at that page many times. My issue is what do the A-, B-, C, and D wires mean? What is their function on the motor? Once I know this I can connect to my driver board.

I know ZERO about electrical shematics.

[kuikkap]

I have looked at that page many times. My issue is what do the A-, B-, C, and D wires mean? What is their function on the motor? Once I know this I can connect to my driver board.

I know ZERO about electrical shematics.

A- and C are ends of first pair of parallel coils

B- and D are ends of second pair of parallel coils

These coil ends are of same polarity.

What kind of drive do you have?

[mulligan]

A- and C are ends of first pair of parallel coils

B- and D are ends of second pair of parallel coils

These coil ends are of same polarity.

What kind of drive do you have?

Ok now I got it figured out, I think. Here is the link to the driver info: http://www.electronics123.net/amazon/datasheet/k179.pdf

Motor info:

A- -- Blue/White
Blue - Red/White

B -- Red

C -- Grn/white
Grn - Black/White

D -- Black

For my board I have to have the two centre wires of the coil joined in order for it to work.

Does this look right?

V+ -- D (Black)
M2B -- ++ (Grn - Black/White)
M1B -- C (Grn/White)

V+ - Power for board
GND - Ground for board

M2A -- B (Red)
M1A -- ++ (Blue - Red/White)
V+ -- A (Blue/White)

KITV - Logic Input

[kuikkap]

Ok now I got it figured out, I think. Here is the link to the driver info: http://www.electronics123.net/amazon/datasheet/k179.pdf

For my board I have to have the two centre wires of the coil joined in order for it to work.

Does this look right?

V+ -- D (Black)
M2B -- ++ (Grn - Black/White)
M1B -- C (Grn/White)

V+ - Power for board
GND - Ground for board

M2A -- B (Red)
M1A -- ++ (Blue - Red/White)
V+ -- A (Blue/White)

KITV - Logic Input

Not right.

It should be like this:

V+ -- Grn + Black/White
M2B -- Black
M1B -- Grn/White

M2A -- Red
M1A -- Blue/White
V+ -- Blue + Red/White

Note also that this driver has no current limiting (according to schematic). If use a high voltage you probably blow up something at low speeds, if you use a low voltage you have low speed. Tip: you could use a 24V car bulb as a current limiter...

[mulligan]

Not right.

It should be like this:

V+ -- Grn + Black/White
M2B -- Black
M1B -- Grn/White

M2A -- Red
M1A -- Blue/White
V+ -- Blue + Red/White

Note also that this driver has no current limiting (according to schematic). If use a high voltage you probably blow up something at low speeds, if you use a low voltage you have low speed. Tip: you could use a 24V car bulb as a current limiter...

I was close, but no cigar.

I have resistors to limit the power for the motor, so I should be alright there.

Thanks for the help kuikkap!!