details of stepper motor used in floppy drive

[HiteshDR]

i have tried already

I would suggest you simply connect the motor up, and see how it performs - bear in mind to get maximum power you need to run it at considerably higher than it's design voltage, and limit the current.

hi Nigel,
thank you.

i have tried it already this solution but motor was not rotating and it just heating up because of power for more time.
may be its step angle is too slow and that also i dont know.

am i on right track, sir?
if yes then i think we have to look for any other solution sir.

 

[ericgibbs]

hi,

This site was recently posted on the forum.

https://www.linengineering.com/site/resources/onlinecalculator.htm

 

[Nigel Goodwin]

hi Nigel,
thank you.

i have tried it already this solution but motor was not rotating and it just heating up because of power for more time.
may be its step angle is too slow and that also i dont know.

am i on right track, sir?
if yes then i think we have to look for any other solution sir.

How were you feeding it?, a bi-polar stepper requires two H-bridges to drive it (and obviously the correct sequence) - a LOT more complicated than a uni-polar motor.

 

[HiteshDR]

Using L298 & L297 both

How were you feeding it?, a bi-polar stepper requires two H-bridges to drive it (and obviously the correct sequence) - a LOT more complicated than a uni-polar motor.

yes sir,

i have used stepper motor with the help of L298 & L297 circuitry.
i have checked with any one of these and both also but no ouput is coming.
its not rotating and just motor is heating up after few seconds.
is it possible sir motor may be not working properly.
this doubt cam because my floppy drive is old.

 

[Nigel Goodwin]

yes sir,

i have used stepper motor with the help of L298 & L297 circuitry.
i have checked with any one of these and both also but no ouput is coming.
its not rotating and just motor is heating up after few seconds.
is it possible sir motor may be not working properly.
this doubt cam because my floppy drive is old.

You might check **broken link removed** which has some details?.

But to check your motor get two pieces of wire and a battery, and manually step the motor - you will be able to work out the required connections and sequence needed in this way - it would be VERY rare for the motor to be faulty, steppers are very reliable.

 

[HiteshDR]

i have tried in this way

You might check **broken link removed** which has some details?.

But to check your motor get two pieces of wire and a battery, and manually step the motor - you will be able to work out the required connections and sequence needed in this way - it would be VERY rare for the motor to be faulty, steppers are very reliable.

I have checked the resistor between different wires of motor.
using this method i have assumed that the two wires between which i was getting resistor that is the coil.
i have got two pairs of coil in my motor.
by the way how can i check my motor mannually ??

 

[Nigel Goodwin]

by the way how can i check my motor mannually ??

Just with a battery and a couple of pieces of wire - you have two coils, and two ways round you can connect them. You should be able to find the sequence that moves it either way - four steps required.

 

[HiteshDR]

Just with a battery and a couple of pieces of wire - you have two coils, and two ways round you can connect them. You should be able to find the sequence that moves it either way - four steps required.

sir, i am not getting you.
can you please tell me in detail please.

by the way sir how can i check connect the four wire motor with battery.
and how can i test it because according to me its step angle is too small.
i am guessing because it's used for read/write head.
what you ar thinking sir...???

 

[Nigel Goodwin]

You simply connect the battery across one of the coils and the motor moves, the trick is to find the sequence that moves it in the same direction every time. If you can't see it move, then it's probably not moving at all.

 

[blueroomelectronics]

Didn't even know this thing was made, it's a stepper motor tester.
**broken link removed**
**broken link removed**

 

[jbeng]

Probably a bit out of his price range ...
Jeff

 

[HiteshDR]

Thank you Nigel

You simply connect the battery across one of the coils and the motor moves, the trick is to find the sequence that moves it in the same direction every time. If you can't see it move, then it's probably not moving at all.

Thank you Nigel...

tahnk you to you all too..