Re: [Emc-users] hm2 IO

[Sebastian K. <se...@hi...>]

Terry wrote:
> I tried out the hm2 today
> I get an error from this group of lines in my .io file
> 
> 
> # Connect limit/home switch outputs to motion controller.
> newsig Xminlim bit
> newsig Xmaxlim bit
> newsig Xhome bit
> linksp Xminlim <= hm2_5i20.0.gpio.024.in-not
> linksp Xminlim => axis.0.neg-lim-sw-in
> linksp Xmaxlim <= hm2_5i20.0.gpio.025.in-not
> linksp Xmaxlim => axis.0.pos-lim-sw-in
> linksp Xhome <= hm2_5i20.0.gpio.026.in-not
> linksp Xhome => axis.0.home-sw-in
> 
> 
> it was an hal error starting with:
> 
> linksp Xminlim <= hm2_5i20.0.gpio.024.in-not
> 
> Im sure all are bad but this one was first

What was the error message?


> if I comment these out then I can get EMC to fire up
> but with a joint 1 error,I believe the A and B encoder
> on that axis are switched from the mi520.This error
> does not concern me as it is easy to fix in the wiring world
> but the machine nneds to keep running so I need to fix hm2 except for that
> joint error then I will rewire and move on

If the encoder A and B lines in the hm2 firmware are reversed vs the 
older m5i20/hostmot firmware, then simply reversing the sign of the 
encoder scale in the hm2 .ini should take care of it.  Or, as you say, 
swap the A and B wires, but you'd have to remember to swap them back if 
you want to run the older driver again.


-- 
Sebastian Kuzminsky