Re: Yaskawa Servo Pack/Motor compatibility

> Thanks for the tip, but it won't work. From the webpage: "The

index

> signal from the encoder is simply passed straight through from

input

> to output with no change."
>
> These motor have a special index (encoder C phase) signal, that

also

> has to be processed for this to work.
>

Arvid,
Bummer. Never ran into a 3 phase encoder. You can build your own
divide by 2 circuit for all 3 phases using 2 edge triggered flip
flops (74F74 ~$0.35). See
http://physics.uoregon.edu/~torrence/432/notes/notes4.pdf
You would have to do a reset at power on with a simple RC circuit to
insure counter phases.

Roger