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

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