Re: imit/home switches

Anders

The EMC can home from a limit rather than the home switch pin. I believe
that it does this if a limit switch closes/opens during the homing
sequence. You would need to offset each axis a bit during the home
sequence so that an axis is not sitting on the switch when you home the
next. Once homed, the software limits should protect from overtravel.

Ray

>    From: "awallin25" <anders.wallin@...>
> Subject: limit/home switches
>
>
> Hi,
> I have a 3d router table with only limit switches (+ and -)
> installed, no separate home switches.
> I'm going to use EMC to control the stepperdrives.
>
> I'm thinking about wiring the - limit switches as the home switches
> and using the + switches as limit switches.
>
> Would this be dangerous ? eg. the controller could drive the axes
> past home...
> is it possible to wire the -limits to both the emc -limit and the
> home input ??
>
> AW