Sounds good, then I'm at least closer to a working config.
I did all the PID tuning, unfortunately I don't have the Step time-values
but I hope someone at Rutex can give me them. I'm close to giving up on
these controllers as I can't find info about them any longer except for the
PID tuning.

2009/9/23 Rob Jansen <r...@myvoice.nl>

> Sven,
> > I'm using Rutex 990H cards and Minerva (Yaskawa robot) servo's rated 67
> V/10
> > A, and I have so much power in the electric feed I can use the control
> box
> > as a welding machine .
> >
> These Rutex drivers are step-servo drives, meaning that they convert a
> stepper output (from your CNC controller) into motor signals for a servo
> motor.
> I can't find much about the 990H, apparently Rutex is not selling those
> anymore and there is no documentation on their website. I hope you have
> all the docs and software to setup your system.
> > I did a new configuration with Stepconf, will that really work with
> servo's?
> > It says in the documentation that it should handle any step/dir config
> but I
> > only see stepper motor settings and not really something that is servo
> > related.
> Correct, that is the beauty of these system. It almost suggest you don't
> need to know about servo controllers and PID parameter settings. And
> that is true - for your EMC config.
>  From the CNC controller software you only need to know about feed
> rates, and stepper timing - but you will need to program the PID
> parameters in the servo controller if that is not done by the machine
> provider.
> Please note that these type of servo drivers use mostly microcontrollers
> to convert the stepper signals. They may/will have special requirements
> on step timing and the moment when you change the direction signal. Do
> read the manual of the 990H very thoroughly  and check your stepper
> settings.
>
> > I'll try to test the encoders like stated here
> > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Tuning_EMC2/HAL_PID_Loopslater
> >
> EMC sees your system as a stepper system (possibly with encoder
> feedback), all PID loop settings are done inside the 990H drivers (and
> should be tuned in there).
>
> Regards,
>
>    Rob
>
>
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