RE: [CAD_CAM_EDM_DRO] RE: Relinear encoder source: Now Limbo Rock

> -----Original Message-----
> In the servo gecko drive amps, this is in the drive itself. If
> the encoder
> gets more than a few steps behind the step signals from the computer, the
> gecko trips out. I think that this condition is indicated on screw five.
> There are a number of commercial servo amps that are driven by digital
> signals that will behave roughly the same.

It actually take more than a few steps. If I remember correctly the Gecko
will continue to increase the juice to the motors until about 115 steps
(each step is 1 encoder count in 4X quadrature mode) and then fault.

> One major difference between stepper and servo systems with respect to
> following error is that in a servo system, the greater the following error
> the greater will be the command signal to the motor amp in an attempt to
> reduce following error.

The Gecko G320/340 do the same until they fault.

Tim
[Denver, CO]

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