Re: [CAD_CAM_EDM_DRO] rotary encoders

j54522000 wrote:

>How do you test a rotary encoder to find out if there any good with
>out hooking them up to the DRO JIM
>
>

If you can figure out which wire is +5 V and Gnd, hook those up
to appropriate power source. Connect a DVM to one of the output
signals and gnd. Move the encoder in microscopic increments, and
see if the A and B outputs jump between 0 and +5 V. If both
of them change state, the encoder is most likely OK. If it has an
index channel, that will only pulse over a tiny range once per
rev.

Jon