Re: [CAD_CAM_EDM_DRO] Re: wiring Gecko drivers

Reducing the stepper current will reduce low speed torque but will have
little effect on high speed torque. Due to the motor inductance the
current in the coils takes a finite time to reach the set current. At
high speeds the current in the coils never has time to reach the set
current. This is why steppers lose torque at speed.

Les

theokspindoctor wrote:

> The stepper rate seems not to be the problem. The GEckos are
> limited to 7 amps and the motors are rated at 9 amps unipolar and
> 12.7 amps bipolar. What does that mean in terms of how they are
> wired and how they will perform when using the lower amperage
> Gecko? Could that be the reason they only move at 20 ipm before
> stalling?
>
> Keith
>