Inductive Limit Switch problem

[cropwell]

Does Mach3 disable limits when homing, or is this an option?

I am not able to look at my machine as it is currently on the floor in my office, which I am refurbing.


Looking back through threads (to 2016), I sort-of answered this question, but left doubt. I use a NO inductive switch for homing, but a NC microswitch for limits and I just thought that a break in the homing circuit could cause a crash if the limit is deactivated.

[Voicecoil]

Does Mach3 disable limits when homing, or is this an option?

I am not able to look at my machine as it is currently on the floor in my office, which I am refurbing.

Wow, using CAD to plan your workshop refurb!

[cropwell]

Wow, using CAD to plan your workshop refurb!

Notice that Mach3 is already loaded


Thankfully, I had all the cabinets and worktop (25mm moisture proof MDF, 800mm deep) delivered before lockdown. All the carcases are built and in position. Next job is the worktops, and they are heavy sheets.

Anyway, My question is about homing and limits and I cannot find any reference to the query in the Mach3 reference manuals.

[Neale]

Anyway, My question is about homing and limits and I cannot find any reference to the query in the Mach3 reference manuals.

Mach3 certainly disables limits when homing if you use common home and limit switches. Seems likely that it does the same with separate switches - I'm sure I remember reading this in the manual somewhere but that was a long while ago.

[cropwell]

Mach3 certainly disables limits when homing if you use common home and limit switches. Seems likely that it does the same with separate switches - I'm sure I remember reading this in the manual somewhere but that was a long while ago.

If that's the way it is, it ain't going to be changed now. If I had my machine available, it would be an easy test - set homing going and trigger a limit switch.

[JAZZCNC]

Anyway, My question is about homing and limits and I cannot find any reference to the query in the Mach3 reference manuals.

So what's your question.?

[cropwell]

So what's your question.?

Does Mach3 disable limits when homing, or is this an option? (post #25)

[JAZZCNC]

Does Mach3 disable limits when homing, or is this an option? (post #25)

It's an option. If you go into General config there's a setting called Home SW safety. Tick this and it will enable limits while homing. Obviously if sharing the same switch as limits this needs to be off.