2014-11-19 10:26 GMT-03:00 Jeff Epler <[email protected]>:

> this thread has a reverse-engineered pinout for "ZP1".
>
> http://www.cnczone.com/forums/mazak-mitsubishi-mazatrol/77549-mitsubishi-tra41-servo-drives-interface-help-please-2.html
>
> as you might have expected, it looks like the amp is analog velocity
> input.
>     http://innovative-rc.com/tra41.jpg
>
> Andy's PDF shows resolver feedback.
>
> Both Mesa and Pico have solutions for analog servo amp + resolver
> feedback that work nicely with LinuxCNC.
>

That forum discussion pretty much solves all my doubts. It seems the driver
uses tacho generation to close the speed loop within itself, and the only
signals I need to replace are the analog voltage for the velocity command
and some of the ready and fault signals to make it work. Also the pin
information is a great help to start testing.

I'm not sure about one thing in the pictures of my drivers and it's the
fact that there's a connection between the two of them, I'm going to see if
I can find out something on my PDFs but I'm not sure about what that might
be for.

I'm planning on use the resolvers as you suggested since they work really
great and also everything is already mounted so practically I don't have to
touch anything of the mechanical units.

I hope I can do some testing soon because replacing the original control
will give me a lot of new functionalities.

Thanks Jeff for info!


-- 
*Leonardo Marsaglia*.
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