Re: Re: Closed loop steppers

Charles VanLeeuwen wrote:

> From: "Charles VanLeeuwen" <cavlon@...>
>
> The beauty of a servo drive is that it will crank up to max available torque
> to get to where it is supposed to be, and keep trying until it gets there
> (or something smokes).

No, generally not. Most controls for servo systems will stop all axes and
report an error if the actual position lags too far behind the commanded
position. Also, most servo amps will trip off if the maximum current is
exceeded for some small amount of time.

The ability of the control to halt all axes, and stop the spindle can often
save the part being machined when a crash occurs.

Jon