I have just completed all the Ardunio electronic and I cannot make my stepper motor drive. All 3 LED's come on and 2 change colour but as soon as I plug in the stepper either the leds go out or the power supply trips . When I put a multi meter accross the outputs I get about 10v over a and b and the same over c and d. I am guessing that I have wired up the stepper motor incorrectly unless anyone else has any other ideas. It is the motor from bits from bytes. I have wired together blue and red/white and made blue/white A and red B Then wired together black/white and green then made green/white C and black D. Thanks Andy https://reprap.org/forum/read.php?13,9095,9095#msg-9095 Wed, 09 Sep 2026 21:10:18 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?13,9095,143828#msg-143828 https://reprap.org/forum/read.php?13,9095,143828#msg-143828 www.linengineering.com]]]> soma Controllers Fri, 20 Jul 2012 20:41:55 -0400 https://reprap.org/forum/read.php?13,9095,138571#msg-138571 https://reprap.org/forum/read.php?13,9095,138571#msg-138571
Regards]]> pin Controllers Tue, 19 Jun 2012 00:17:05 -0400 https://reprap.org/forum/read.php?13,9095,25034#msg-25034 https://reprap.org/forum/read.php?13,9095,25034#msg-25034 Two yellow, Two red ,Two black and two grey.
I have checked the coil resistance to be 50 ohms between yellow and black, Red and grey.
I have to drive the motor via PIC16f72 using ULN2003. But the motor turns once then gets stuck.
what could be the problem please help.]]> abhishek Controllers Tue, 14 Jul 2009 13:14:31 -0400 https://reprap.org/forum/read.php?13,9095,24990#msg-24990 https://reprap.org/forum/read.php?13,9095,24990#msg-24990 Two yellow, Two red ,Two black and two grey.
I have checked the coil resistance to be 50 ohms between yellow and black, Red and grey.
I have to drive the motor via PIC16f72 using ULN2003. But the motor turns once then gets stuck.
what could be the problem please help.]]> abhishek Controllers Sat, 11 Jul 2009 12:30:52 -0400 https://reprap.org/forum/read.php?13,9095,10385#msg-10385 https://reprap.org/forum/read.php?13,9095,10385#msg-10385 www.motioncontrolproducts.co.uk]]]> nophead Controllers Sun, 16 Mar 2008 15:11:43 -0400 https://reprap.org/forum/read.php?13,9095,10383#msg-10383 https://reprap.org/forum/read.php?13,9095,10383#msg-10383
thanks in advance]]> Dean Hines Controllers Sun, 16 Mar 2008 12:56:06 -0400 https://reprap.org/forum/read.php?13,9095,9841#msg-9841 https://reprap.org/forum/read.php?13,9095,9841#msg-9841
i was right in reading the datasheet =)

if you're using the arduino based stepper motor driver, you'll probably be fine. it uses current chopping so you can adjust the current that goes through it. adding some car lights in series would not be a bad idea though.]]> ZachHoeken Controllers Sun, 24 Feb 2008 19:06:54 -0500 https://reprap.org/forum/read.php?13,9095,9810#msg-9810 https://reprap.org/forum/read.php?13,9095,9810#msg-9810
"The problem with our steppers is they are to low coil resistance 0.8 Ohms and the L298 ideally requires 3 Ohms or more the quick and dirty fix is a series resistor this will prevent damage of the motor and electronics but will generate heat and lose some power this will not be a problem on the X or Y axis but could be on Z as this uses quite a bit of power if you make sure it is very well aligned on Z with all parts running very smoothly it should be OK . You will need a 3 Ohm resistor in series with the motor coils i.e. 2 off one for each coil but it must be rated for 15W or more I have been told a car side light will give this sorts of figure but have not tried it

The motor connects in Bipolar series so connect the Blue and Red/White together and insulate the join, connect the Green and Black/White together and insulate the join, your two coils are then Blue/White ]]> Ian Adkins Controllers Sat, 23 Feb 2008 17:05:47 -0500 https://reprap.org/forum/read.php?13,9095,9723#msg-9723 https://reprap.org/forum/read.php?13,9095,9723#msg-9723
The PIC stepper controllers use pwm, so I'm not sure you really need the power resistor. Just don't run them on maximum.

--Blerik]]> Anonymous User Controllers Thu, 21 Feb 2008 16:38:02 -0500 https://reprap.org/forum/read.php?13,9095,9718#msg-9718 https://reprap.org/forum/read.php?13,9095,9718#msg-9718
looking at the datasheet, the colors are listed in the order they appear, so it seems that the color/white ones do not directly correlate to A/A'.

i would try this:

Connect these wires together:

Blue and Red/White
Green and Black/white

Then, these wires become A/B/C/D:
A. blue/white
B. red
C. green/white
D. black

You need to wire up the motors differently for Y,Z and X... see the stepper controller page for ABCD -> 1234 tables. link: [reprap.org]]]> ZachHoeken Controllers Thu, 21 Feb 2008 15:33:54 -0500 https://reprap.org/forum/read.php?13,9095,9717#msg-9717 https://reprap.org/forum/read.php?13,9095,9717#msg-9717
I had no luck with wiring them as you suggested. can you double check and let me know?

Cheers

Joe]]> JoeMcGuire Controllers Thu, 21 Feb 2008 15:14:10 -0500 https://reprap.org/forum/read.php?13,9095,9699#msg-9699 https://reprap.org/forum/read.php?13,9095,9699#msg-9699
connect blu/wht with red/wht, and nothing else
connect grn/wht with blk/wht. and nothing else
now you have 4 unconnected solid color wires left, connect them to pins:

1 - blue
2 - red
3 - green
4 - black

If the stepper turns the wrong way, reverse pin 1 and 2 only.

*edit* doesn't matter whether the wires with white are ' or not. If they are not, you wire the two phases in reverse, which changes exactly nothing with steppers.

--Blerik]]> Anonymous User Controllers Thu, 21 Feb 2008 05:11:17 -0500 https://reprap.org/forum/read.php?13,9095,9695#msg-9695 https://reprap.org/forum/read.php?13,9095,9695#msg-9695 The spec sheet can be found -
[www.motioncontrolproducts.co.uk]

Can anyone advise how to wire this stepper to a UCB v2.1?]]> JoeMcGuire Controllers Thu, 21 Feb 2008 04:16:22 -0500 https://reprap.org/forum/read.php?13,9095,9168#msg-9168 https://reprap.org/forum/read.php?13,9095,9168#msg-9168 [www.motioncontrolproducts.com]

Andy]]> andy hall Controllers Tue, 05 Feb 2008 17:27:50 -0500 https://reprap.org/forum/read.php?13,9095,9160#msg-9160 https://reprap.org/forum/read.php?13,9095,9160#msg-9160 nophead Controllers Tue, 05 Feb 2008 15:35:13 -0500 https://reprap.org/forum/read.php?13,9095,9159#msg-9159 https://reprap.org/forum/read.php?13,9095,9159#msg-9159
as for the pdf, i wouldnt worry, but we dont have to host it on-site. the wiki links directly to the other pdfs as well. we can add it into the stepper page.

i'll try and add the jumper info the the stepper driver page.]]> ZachHoeken Controllers Tue, 05 Feb 2008 15:31:40 -0500 https://reprap.org/forum/read.php?13,9095,9156#msg-9156 https://reprap.org/forum/read.php?13,9095,9156#msg-9156
If you type the spec "fl57sth51 stepper" into google you can get the spec from this website as a PDF but it is copywrited so I would hestitate to post it.

Andy]]> andy hall Controllers Tue, 05 Feb 2008 15:24:40 -0500 https://reprap.org/forum/read.php?13,9095,9155#msg-9155 https://reprap.org/forum/read.php?13,9095,9155#msg-9155 [www.reprap.org]
Does anyone know what the bitsfrombytes motor is / have specs for it?]]> greenarrow Controllers Tue, 05 Feb 2008 15:17:35 -0500 https://reprap.org/forum/read.php?13,9095,9154#msg-9154 https://reprap.org/forum/read.php?13,9095,9154#msg-9154 nophead Controllers Tue, 05 Feb 2008 15:09:02 -0500 https://reprap.org/forum/read.php?13,9095,9153#msg-9153 https://reprap.org/forum/read.php?13,9095,9153#msg-9153
I got it working by putting a jumper on the slave/master jumper. This solved the problem and I used my original wiring

(I have wired together blue and red/white and made blue/white A and red B

Then wired together black/white and green then made green/white C and black D.)

I also bought a new 350w power supply as the old one was only 200w and was very old.

Thanks for the help nophead

Andy]]> andy hall Controllers Tue, 05 Feb 2008 14:36:38 -0500 https://reprap.org/forum/read.php?13,9095,9102#msg-9102 https://reprap.org/forum/read.php?13,9095,9102#msg-9102 nophead Controllers Sat, 02 Feb 2008 15:17:14 -0500 https://reprap.org/forum/read.php?13,9095,9101#msg-9101 https://reprap.org/forum/read.php?13,9095,9101#msg-9101
Getting that wrong would give your motor zero inductance so the current would build up very quickly, possibly too fast for the chopper to control properly.

Odd the PSU would shut down as normally a PC 12V rail would easily supply the current no matter how you wired the motor unless you had a short circuit.

It could be detecting over voltage due to spikes caused by back EMF. Are you using the powercomms board with the big capacitors on it to distribute the power?]]> nophead Controllers Sat, 02 Feb 2008 13:30:42 -0500 https://reprap.org/forum/read.php?13,9095,9099#msg-9099 https://reprap.org/forum/read.php?13,9095,9099#msg-9099
Andy]]> andy hall Controllers Sat, 02 Feb 2008 13:00:36 -0500 https://reprap.org/forum/read.php?13,9095,9098#msg-9098 https://reprap.org/forum/read.php?13,9095,9098#msg-9098 nophead Controllers Sat, 02 Feb 2008 12:36:50 -0500 https://reprap.org/forum/read.php?13,9095,9095#msg-9095 https://reprap.org/forum/read.php?13,9095,9095#msg-9095
I am guessing that I have wired up the stepper motor incorrectly unless anyone else has any other ideas. It is the motor from bits from bytes.

I have wired together blue and red/white and made blue/white A and red B

Then wired together black/white and green then made green/white C and black D.


Thanks

Andy]]> andy hall Controllers Sat, 02 Feb 2008 11:46:53 -0500