Testing Stepper motor

[HighOctane]

Here's the situation... I built own controller board and when attaching Japan Servo Stepper motor model KP56LM2-092. The motor did not turn at all. I did hear it clicking inside, when I tap it with ground wire to pin 2 (X axis pin) but the shaft won't rotate. I also jogged it with Mach2 program and it still show same result. I wasn't sure if there is problem with the motor or the circuit that I built so is there a way I could test a motor without having it attach with controller? if so how?
Your help is appreicated.


Arthur

[strat]

tie 2 of the motors together (same wire of one to same wire of other ) then turn shaft by hand if the wires are ok the other motor should turn from the juice generated when you turn the one the second thought is stick a meter across the a's and b's and see if you get a reading from them to compare

[HighOctane]

I am not sure I get it.... okay let me give you wire specifcation:

Red wire- Phase 1
Red/white wire- Phase 2
Green wire- Phase 3
Green/White- Phase 4
Black- Common Phase 1 and 2 (center tap)
White -Common Phase 3 and 4 (center tap)

So which wires need to be tied up? and which wire need to be juiced up so I can have meter reading? Again, I have Japan servo stepper motor runs at 6 v 1.2a and do I need to attach a resistor since I only have 5v 80a and 12 v 13a PSU. lemma know

[strat]

tie red to red red/w to red/w green to green green/w to green/w

don't worry about white and black at moment then when you spin shaft by hand on one it should( if wires are ok) cause the other to turn the power one generates should cause the other to turn at the same time you wont be connected to any thing other then one motors wires connnected to the other motors wires
basically were going thru both coils in series the black and white are center taps for each now then on the other way take a meter with the motors disconnected put like black from meter to black of motor then when you touch the other red probe to the red or red/w ect you should find 2 wires that give you a reading use ohms your just trying to see if you get a reading basically you have 2 set of coils that are center tapped(black and white wire) i just bought new motors that are 4 wire my old ones were 6 to find out what was what i tied one probe to black tested then i found 2 wires that read from it the repeated with the white found 2 more then i tied across the 2 that read from white or black and noticed double the resistance

[H500]

Here's a way to test it.

1. Connect both center taps to your 5v supply ground.
2. Sequentially touch the 5v supply to the coils in the following order (probably)
red---green---redwhite---greenwhite

The motor should step forward each time you energize a coil.

Before you do the test, you should measure the resistance to make sure none of the coils are shorted.

[HighOctane]

Status on strat's methods
Reminder:
Red (Ph1)
Red/White (Ph2)
Green (Ph3)
Green/White (Ph4)
Black (Common Ph1-2)
White (Common Ph3-4)


-Red and Red/White from motor connected to red probe of meter
-Black wire from motor connected to Black probe of meter

I get reading of 0 ohms
Turning shaft cw/ccw all the way at one rotation I get 0 ohms

-Green and Green/White from motor connected to red probe of meter
-Black wire from motor connected to Black probe of meter


I get reading of 0 ohms
Turning shaft cw/ccw all the way at one rotation I get 0 ohms

Is that what I should expect to see? is all of coil good?

Status on H500 methods

Reminder:
Motor: Japan Servo Stepper Model KP56LM2-097 6vdc 1.2 amp 1.8 degree/Step
PSU: 5vdc 50A

Before getting it started... I marked a dot on shaft with marker so I could see if it would move.
I connected ground wire of PSU (+5v) to black wire of motor (Center Tap for Phase 1 and 2) then connects +5v to red wire (Ph1) then Red/White (Ph2) Sequentially, I heard a loud cilck. but barely see shaft moving. maybe a little.
Again, I connected ground wire of PSU (+5v) to white wire of motor (Center Tap for Phase 3 and 4) then connects +5v to red wire (Ph3) then Red/White (Ph2) Sequentially, and again I heard a loud cilck, barely moved a little.

Assumedly, because it only move 1.8 steps, 200 steps per revolution. So say if I keep taping on same wire (red) with 5v would it move step by step in sequences?

[strat]

what i was after was black probe of meter to your black wire your red probe to the red wire get reading .....
then black probe to black wire red probe to red /w wire get reading .....

then readings you get in ohms from each of these added together should give you the reading you get when you hook black probe to red wire and red probe to red/w wire

make sure you meter is at the lowest range the meter can read

from the sounds of it the motor seemed ok if you got a tiny step
you gotta remember for the motor to do a complete rotation it has to get a seqeunce of binary number to the wires think of each wire as a binary digit then seq. adding
0001
0010
0100
1000
||||_ red
|||___green
||______red /w
|_________green/w
this is just an overview not exactly whats happening

[HighOctane]

Oh I see now... I didnt have meter at the lowest range... So recently I tried again, set it at lowest range I do get reading... Seem like its fluctuating everytime I turn the shaft with my hand. Sound like normal and working motor.

Now that clearly explain how motor work with binary sequences...

One last thing... my motor can run up to 80oz torque, would that be a good motor to use to cut in linear, making arcs, and engraving letters?

[strat]

theres several factors to the amount of power if you do a search and find the images of my machine on here the motors originally i put on it were 116oz/in i could get it to go but was getting what seemed like binding i thought my rails were out a bit i replaced the x axis with igus rails and i know that they were lined up but still experienced the binding i bought some new motors that are 278oz/in and no longer have the binding so back to the ? can you make 80oz/in work ??? it depends on the design of the machine i would think (and if anyone knows more then what i am saying plz jump in ) you used more of a roller bearing setup for slides it would work for engraving and such if you want to do bigger deeper cuts or use like delrin or such for sliders then you got more friction ... more load on the motor so you need a bigger motor best of luck and keep us updated on your progress this has been one of the best sites for help info and just yakin
Strat

[HighOctane]

Oh now I get it clear about motor torque (oz/in) I have always thought it applies to the strength of push/pull when spindle is cutting a material such as wood, plastic or metal. For example if you could grab power tool such as jigsaw or drill... you would have to put your strength in order for it to move when cutting or making hole when drill the wood.
So, now deciding torque for a machine is not my biggest concern since I build skate plate that has roller bearing for all of three axes.
Yes, agreed... this site is the best place to visit for help, or collect all info to built my machine as best as I could have. in the mean time thanks for your help

much appreicated