Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: DonMarkey on June 20, 2013, 09:12:54 PM

Title: Multiple limits and homing
Post by: DonMarkey on June 20, 2013, 09:12:54 PM

Can I share multible home switches on one input.  Right now I use one prox with 2 flags one for + and - limit/home switches and it homes fine.  But I am out of inputs and want to add some things without going to modbus or something like that.  So can I use one input for mulitble axis?  I know it will work electrically but will it work in mach or will I get a limit trip when homing?
Thanks,
Don

Title: Re: Multiple limits and homing
Post by: Chaoticone on June 20, 2013, 10:04:44 PM

Yes, you can wire all of your home switches and limits switches to one input if you want.  The reason it can still home correctly is because Mach follows a routine when homing.  It isn't looking for a particular switch, it is looking for a change of state and they can all be on the same input.  If anyone of them trips while not homing it will throw a limit switch fault.

Brett

Title: Re: Multiple limits and homing
Post by: DonMarkey on June 21, 2013, 08:18:08 AM

Thanks that was what I was hoping for.  I knew mach disreguarded the limits while homing just didn't know if it was all  limits during the whole homing process or an axis by axis basis.
Don