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[JAZZCNC]

so if i'm reading you correctly then the limit switch when triggered is also wired to the enable on the drive thereby disabling the drives so that's when the override is required? or i can use the limit switch trigger input to MACH 3 to stop the motors and use the Auto Limit Overide feature. ?

The way I do it is to use a Relay for limits. This means I can use 24V thru the switches to power the relay coil, in my case Proximity switches, which gives best immunity against noise.
The drive enables are then sent thru one set of NC contacts, The Limit input is sent thru another set NO contacts.
Override is by way of Momentary button and Alarm buzzer to between 24V and relay coil to allow limit switch to be over ridden.

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