Current output from servo amps

Hey everyone,
I noticed the NC400 servo drives on my machine have an analog current output. Currently it isn't being used.

 

Is there anything useful LinuxCNC could do with this signal. My other thought was wiring it up to a light/tone so that when cutting the operator could get some idea of how much force was being applied to the cutter. Like the pitch increases as the current does.

-Hunter

Cool, do you still have your code/config files that showed this on the PyVCP panel?
That seems like a very helpful feature.

Thanks,
-Hunter

It would be cool to stick it to a VU-meter.

Presumably, that's a 4-20ma output?
Just scale a resistor so the 20ma puts out the upper voltage limit of the Mesa's analog input and you should be able to do whatever you'd like with it. I don't know what bit the mesa's ADCs kick out but I'd imagine they're pretty good. If it is 4-20 and you want a true linear scale, you'll need to use an OP-amp of some kind but that seems like a lot of work for a nominal improvement. Personally, I'd just scale it to the top end and the heck with the bottom.