On 11/06/2011 08:36 PM, Scott Hasse wrote:
> It seems the normal way to do this would be to take the input to the
> existing estop-ext signal put that into an or or component and link that
> with the spindle fault and the link the or component to the estop-ext.
>   However, that can't be done in a very modular way from what I can see.
>
> Any opinions on the best way to integrate multiple external estop signals?

We have a spindle VFD which faults every few hours. We really need a new 
one, but that will come. Not sure the cause, but there are electric 
trains nearby and we suspect power surges may be the problem. Or maybe 
just a flaky VFD.

The VFD has a fault relay which has NC and NO contacts. We wired one of 
the contacts to motion.enable, like this:
net vfd-ok motion.enable <= hm2_5i20.0.gpio.052.in_not

We also have a pushbutton called RESET in the pyvcp panel of axis, which 
drives the VFD's reset line.

When there is a fault it halts motion, and after pressing F2 in axis and 
the reset button on the panel, it can be restarted. Not sure if this is 
optimal, but it seems to work ok.

I'm not sure if this would work with the vault logic your VFD has.

Karl

------------------------------------------------------------------------------
RSA(R) Conference 2012
Save $700 by Nov 18
Register now
http://p.sf.net/sfu/rsa-sfdev2dev1
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to