Re: [CAD_CAM_EDM_DRO] Stepper motor

Ian Wright wrote:

> Now here's a very basic question which just needs confirmation or otherwise.
> Am I right in assuming that, on a 6-wire stepper motor, the specified
> current of 1.4Amps per phase refers to the current in half a winding - from
> the centre tap to one end, and that, if you are running the motor in
> 'bipolar?' mode using just the 4 wires across the ends of the total
> windings, then this current setting should be halved (same voltage feeding
> into double the resistance).

You may get better performance (almost certainly better speed) by just
using the rated current on one half of the winding. The inductance is
1/4 of the full winding that way! (For the ultimate, on 8 wire motors, you
can parallel the two half windings.)

Jon