Thanks for the info...can you explain that last part 7i77 GPIO? I have just started looking at this stuff and I am not entirely clear on the mesa side of things just yet. As far as I know I should not need any delay in the power supply setup and it sounds like that last bit in your post should work fine. Nice that the mesa cards can take the commercial 24v control signals. Did I hear you correctly when you said you wired your limits and homes in series and in with the estop circuit? Why would you want to do that and how do you manage to be able to back the axis off the limit switch once everything is powered down? Maybe I misunderstood.....thanks for your assistance ....peace
Pete On Tuesday, February 12, 2013, andy pugh <bodge...@gmail.com> wrote: > On 12 February 2013 13:35, andy pugh <bodge...@gmail.com> wrote: > >> http://uk.rs-online.com/web/p/contactors/7434908/ > > Just checking, and the 24V coil in those contactors is rated 3W, or > 125mA. The Field outputs on the 7i77 are rated for 24V and 350mA, so > you should be able to wire 24V to field-power (TB2) , then loop from > 7i77 TB7 to each e-stop switch, then through the contactor coil, then > back to 0V return. > > Then wire that 7i77 GPIO channel to axis.0.amp-enable and you should > have the scheme you want. > > -- > atp > If you can't fix it, you don't own it. > http://www.ifixit.com/Manifesto > > ------------------------------------------------------------------------------ > Free Next-Gen Firewall Hardware Offer > Buy your Sophos next-gen firewall before the end March 2013 > and get the hardware for free! Learn more. > http://p.sf.net/sfu/sophos-d2d-feb > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
