No idea how to setup the stepper motor

[Syphonics]

I just bought a stepper motor and driver board from RS components
The model of the motor is 191-8334 and board is RSSM2 product id 240-7920.
The datasheet and manual given to me is too brief. I do not understand and i do not know where to connect the wires.
this model of motor suppose to be 6 wires but it comes to me 8 wires.
what am i to do with the extra wires, ground them or no connections?

How do i connect them to my driver board?
My board got 2 sides for connections, left and right
On the right

+5v
ENB
H/F
DIR
WAV
DIS
CK0
CK1

and on the left
0VM (Motor voltage)
+VM (Motor voltage)
PHA
PHC
PHB
PHD
+VL (Logic control)
0VL (Logic control)

how to i link up with my stepper motor and my circuit board, i am using a PIC 16f877.

thank you

[Oldmanandhistoy]

Hi,

Could you add links to online documents?



Regards,
John

[thkoutsidthebox]

I believe this is his stepper:
http://www.radionics.ie/cgi-bin/bv/r...cape&Nr=avl:ie

And the driver board:
http://www.radionics.ie/cgi-bin/bv/r...cape&Nr=avl:ie

If these are wrong please tell me. I just searched radionics for the stock numbers you provided. Sorry Im unable to offer any advice but hopefully someone else can.

[Kipper]

Heres the wiring diagram for the driver...Motor is just an 8 wire unipolar. Wiring diagram should get you going. hth

[Syphonics]

thanks guys i manged to have the motor moved.
but then i had another problem. my motor seems to be going in tick tocks instead of a complete rev.
I connect my motor wiring this way: red to phase A, green to phase B, black to phase C, and yellow to phase D.
the rest of them yellow white, grreen white, red white, black white, i tied them up to my power supply +VE.

the attached is the diagram of my motor.

[Syphonics]

btw i input clock signal to my CIN inn the driver board from my PIC controller. is it right?

[Torchhead]

This appears to be a unipolar driver. IF it is you have to connect the 8 wire motor up correctly. The coils need to be the right sequence and wired in series. If the motor drive does not have PWM and current limiting built in then a series resistor to V+ is needed.

Each "center tap" created where two coils are tied in series needs to go to V+ (motor DC +).

I did not see the wire colors listed on the motor spec sheet but I did not study it very close.

There are four individual coils. The start and end of each coil needs to be established (phase). To wire two in series correctly you need the end of one tied to the start of the other. The place they tie together becomes the center tap and the two outside legs become the coil ends. Do it on both sets. You basically are turning an 8 wire into a six wire motor.....two coils with a center tap.

Don't expect too much speed or performance if the driver is not a PWM with settable current limit. If it requires an external current limit resistor than you have to change that value if you increase the applied voltage. You have to increase the applied voltage to get more RPM. When you increase the resistor it uses more power. Most of the added voltage does up as heat. It's a bad set of diminishing returns.

[Syphonics]

hi guys thanks for all the help i managed to have my stepper motor and board working. the board have a onboard clock output , i jack that into the clock input to regualtes the speed. the motor ticks tock previously is because of the wrong connection after i swap the middle two motor wires it works.

[ikrampc]

hi guys,
iam new to this forum and trying to drive stepper(from RS components-Model.nr.191-8356) motor using RSSM2 board .

Iam using atmega16 as a source of my TTL signals,i would be grateful if u could give some details about driving this motor as i have no idea at all.

thanks.

[Syphonics]

Originally Posted by ikrampc hi guys, iam new to this forum and trying to drive stepper(from RS components-Model.nr.191-8356) motor using RSSM2 board . Iam using atmega16 as a source of my TTL signals,i would be grateful if u could give some details about driving this motor as i have no idea at all. thanks.

This is what i did.
as in the diagram for the RSSM2 board, the solid colors wires of the motors will goes to phase A to C. the ribbons colors i tied them up together.
Using a Microchip PIC controller PIC16f877A, i input codes of highs to CKI. DIS for stop.
CKO is the built in clock to be bind with CKI, only if u intend to use the inbuilt clock, else leave CKO out.
Input voltage to VL, and VML.

[ikrampc]

hi syphonics,

i tried with your idea to connect stepper ,but its not rotating,

please give me some detailed information on this,if i want to drive it without using microcontroller, by just setting DIR ,H/F,ENB pins,is it possible or not?and what is +5v on block 2.

thankyou,

please reply!

[Syphonics]

Originally Posted by ikrampc hi syphonics, i tried with your idea to connect stepper ,but its not rotating, please give me some detailed information on this,if i want to drive it without using microcontroller, by just setting DIR ,H/F,ENB pins,is it possible or not?and what is +5v on block 2. thankyou, please reply!

attached is the picture of my motor board, on the right is the microcontroller board.
Most of my connections are on the left side of the board according to the picture.
From the (LEFT) top to bottom: the brown and blue wires are the power supply. Pink green black yellow are the motor wires. Red and white wires are power supply (Using same supply source as the brown and blue wires).

On the right of the board is the logic control. Again from top to bottom.
As i am using a microcontroller, so my logic goes to (orange wire) CKI (which is Clock input), and to stop the motor logic (black wire) DIS.
The bottom blue wires are merely using the +5v to short the H/F for halfrate. (Which my application requires a Halfrate instead of Fullrate).

If u want to do it without microcontroller, it is much simpler. The right of the motor board according to my picture, short the CKO to CKI. (Clock output to Clock input).
This clock output is a self generating wave from motorboard, which is built in. You can control the speed using the varible resistor on board which is blue in color.
DIR is the direction, to change it merely short it using the +5v on the right of the board.