Daniel Duesentrieb wrote:
> Thanks Andy,
>
> So I have to replace the drivers with the ones from Pica or Mesa. Do I 
> still need the encoder converter electronics?
>
>   
Possibly.  To use my (Pico Systems) gear, you would need our encoder 
converter
board, as the commutation signals from the encoder are not industry 
standard.
They provide 4 signals that give a Gray code approximation of absolute rotor
position, for their own commutations scheme.  Our Fanuc converter converts
this to an approximation of the standard Hall signals until it has seen 
the index
pulse, then it uses the quadrature plus index to provide the most 
accurate Hall
signals.)
> Yes, I can see they "only" have 2.2KW, I would need ~3KW. I do not blan 
> to lift heavy parts. In fact I want to use the robot as a 5-axis mill 
> and cut in wood. So I guess this would not be a problem.
>
>   
The problem with wood is that you may want higher feedrates, and thus
higher accelerations would be needed.
> Then would be for now to buy the pico drivers and encoder converter plus 
> the mesa controller/daughter card for now. Keep the original driver 
> until Mesa shows up with the right controller and then switch back.
>
> Sounds like a plan?
>   
That will probably also work fine.  You'd then feed just ABZ back to the 
Mesa
board, and PWM and direction to the servo amp.

Jon

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