Re: trouble shooting steppers

Hi Old Troll,

Hope you don't mind me kidding around a little. Thanks for pointing
the way.
JanRwl@A... wrote:

> Very basic! first, disconnected, there should be "continuity" in

the

> windings, and this would be very low resistance, between, oh, 1/2

ohm (not

> counting lead-wires!), to maybe 50 or 100 ohms, depending on how

high of a

> voltage for which the motor is rated. If a "four wire", then there

should be

3.2V 2Amp motor. Resistance measured from the connector: 2.2ohm half
coil, 3.8ohm full coil.

x = connections resistance
R = half coil resistance

x + R = 2.2
x + 2R= 3.8
therefore R = 1.6
x = 0.6 ohm

R = V/I = 3.2/2 = 1.6

Seem OK

>a winding (continuity) between two pairs of two wires,

Checked out OK as from tests above wired for half coil. Resistance
within phase = 2.2 ohm, between phase = infinity

Thanks again Old Troll

Aspiring Troll