Turbocnc and Limit Switch

Hi,
I'm working on converting a Emco Pc 5 Lathe , I'm using
Turbocnc and Gecko 201's .
What is the best way to hook up limit switches ?
Right know I have the software set up to sense activation
when that switch is going low (to ground) .
I need to have some way to reset this condition
so I can proceed with the movement of the motor .
Also I noticed that setting them this way seems
to put a drain on the available voltage to the drive's
I'm not using any pull-up resistors ,
(not really sure how to wire those).
Any help or ideas would be great.
Thanks
Frank